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deez
24-08-07, 01:56 AM
I think it's time to sit down and start a thread properly :P Left my job last week and it's awesome how I finally can have time to do stuff I wanted to but never had the time for. Anyways I bought this car in September last year and so far I've been slowly adding mods here and there. There's still a fair way to go until it's finished so any ideas and/or comments will be much welcome!

When I bought it late last year:
http://i142.photobucket.com/albums/r119/dereklau_2006/84aaf877.jpg

It was really quite purty...with a custom leather retrim and immaculate paint. The previous owner intended it to be sorta like a boulevard cruiser and that's what I did in the first couple of months owning it...just cruising around. Until I started noticing a few things:

1. The suspension was shit
2. I couldn't corner in it
3. One of those fully hektic chromies must weigh about the same as four of Bab's Speedstars :lol:

So I slowly got to work on it...

First came wheels. I was pretty much broke after paying for the car so in went a set of Black Racing replica something or rather...along with some Toyo Proxes 4's in 205/50/15. Next up was a lip spoiler which gave it a bit more front on presence. This was followed by mods to the interior (yes I took out all that leather! But sometimes I miss their plushness...), then some chassis bracing and sussy, and finally a BD rollbar and hardtop.

This is what it looks like now:
http://i142.photobucket.com/albums/r119/dereklau_2006/382bd782.jpg

http://i142.photobucket.com/albums/r119/dereklau_2006/a95d828a.jpg

http://i142.photobucket.com/albums/r119/dereklau_2006/da06af96.jpg

New headlights with angel eye low beam and LED parkers
http://i142.photobucket.com/albums/r119/dereklau_2006/17d97650.jpg

Reprursent!
http://i142.photobucket.com/albums/r119/dereklau_2006/100_0204.jpg

http://i142.photobucket.com/albums/r119/dereklau_2006/444a1697.jpg

Momo Competition put in...as well as APX Titanium knob (thanks Ed) :)
http://i142.photobucket.com/albums/r119/dereklau_2006/100_0206.jpg

More knob pics
http://i142.photobucket.com/albums/r119/dereklau_2006/100_0210.jpg

Sparco Ultra installed...no more leather = no more butt sliding. Stock NA passenger seat also installed
http://i142.photobucket.com/albums/r119/dereklau_2006/100_0229.jpg

Engine shot...nothing special here, Cusco strut brace w/ brake master cylinder stopper
http://i142.photobucket.com/albums/r119/dereklau_2006/100_0221.jpg

CF CAI
http://i142.photobucket.com/albums/r119/dereklau_2006/100_0222.jpg

Clubman Bilsteins taken out...probably the best mod I've done so far as they were pretty much shot
http://i142.photobucket.com/albums/r119/dereklau_2006/For%20sale/ea78bdfc.jpg

KYB AGX adjustables...along with el cheapo King springs (and damn mud from skids) :evil:
http://i142.photobucket.com/albums/r119/dereklau_2006/100_0223.jpg

Daytime shot
http://i142.photobucket.com/albums/r119/dereklau_2006/100_0215.jpg


A few mods so far:

Engine
MX5 Mania cold air intake
Timing advanced (10->14)
NGK iridium sparkplugs

Suspension
KYB AGX adjustables
King springs
Fat Cat Motorsports 46mm linear bumpstop kit
Cusco strut brace w/ brake master cylinder stopper
Unknown JDM front sway bar (it's red?)
Stock rear sway bar

Chassis
Brown Davis rollbar (CAMS approved)
MX5 Mania front lower arm brace
MX5 Mania rear lower arm brace

Wheels
El cheapo Black Racing replica 15x7's
Toyo Proxes 4's in 205/50/15

Exterior
Factory front lip spoiler
Factory black hardtop (crinkle black finish w/ no demister lines)
7" H4 headlamps w/ angel eye low beam
LED parkers
Rear mudguards removed

Interior
Sparco Ultra driver's seat
Sparco lumbar cushion
350mm Momo Competition steering wheel
APX Titanium gearknob
Generic brushed aluminium handbrake lever
Generic drilled aluminium pedals
JVC HU
Pioneer splits
Alpine amp

Coming mods
HKS headers
K1 Racing catback exhaust
Clear side indicators w/ clear side reflectors
Zoom Engineering fuel cover
Short antenna

Planned mods
Hiflow cat
Remove and shave badges
Some serious deep dish rims in 15x7 w/ +10 to +15 offset (suggestions please!)
Slotted rotors w/ new brake pads
NB 1.8 engine upgrade?

That's it for now! Please comment :)

Alfadog
24-08-07, 09:24 AM
Looks awesome man! It looks like it may have had a bit of a lean with the old suspension too? Looking at all the mods and counting up the dollars, it's easy to see how a lot of money can be sunk in there very quickly...

Sp33dY
24-08-07, 09:29 AM
vERY COOL !! Also really like those aftermarket headlights --- !

Mr Happ
24-08-07, 09:46 AM
Looks really good mate, that is a good pile of mods! i am hoping to be able to introduce my car next week

McCoey
24-08-07, 09:59 AM
Miles better than it was...miles. ;)

gimic
24-08-07, 10:11 AM
wow thats very cool! i think those lights are a win on a NA

Andy Wana
24-08-07, 10:33 AM
Getting closer to that JDM NA6 nirvana there, Deez
Loving the small, but ever so important, details too on the car too (i.e. Painted tow hooks)
If you are planning on getting another black wheel, I would suggest a nice set of black lightweight lug nuts to go with it

Otherwise, car looks absolutely great!

Cappuccino
24-08-07, 10:38 AM
looks 10x better then when you first bought it.... great job any future plans?

nam
24-08-07, 11:11 AM
Excellent work Deez!
The final product looks really awesome :)

IcemaN
24-08-07, 11:22 AM
nice write up there derek.
its comming along swimmingly!

i love the dori angle jdmst sticker:)

Babalouie
24-08-07, 11:39 AM
Very nice, Deez!

deez
24-08-07, 12:13 PM
Thanks for the comments guys! Any suggestions on deep dish rims?

deez
24-08-07, 12:14 PM
looks 10x better then when you first bought it.... great job any future plans?

Coming mods
HKS headers
K1 Racing catback exhaust
Clear side indicators w/ clear side reflectors
Zoom Engineering fuel cover
Short antenna

Planned mods
Hiflow cat
Remove and shave badges
Some serious deep dish rims in 15x7 w/ +10 to +15 offset (suggestions please!)
Slotted rotors w/ new brake pads
NB 1.8 engine upgrade?

:)

Philip Lee
24-08-07, 12:19 PM
Coming mods
HKS headers
K1 Racing catback exhaust
Clear side indicators w/ clear side reflectors
Zoom Engineering fuel cover
Short antenna


very sad indeed.................but at least they are going to good hands.

btw i tested the antenna before i took it off and reception was good.

Babalouie
24-08-07, 12:33 PM
Thanks for the comments guys! Any suggestions on deep dish rims?

Depends...do you want to go old school JDM neo-retro: small diameter (even as small as 13in) big dish, vintage looks? Eg SSR MkII or III, Work Equip 03, Hayashi Street Fin, Watanabe 8 spoke.

OR

Do you want modern dori-dori look: 16in diameter, matt finish. eg Work Meister S1, Sportmax?

GTking
24-08-07, 12:48 PM
love the pic's of your car
looks very clean and nice list on mods!

felixR
24-08-07, 12:56 PM
good stuff derek! very clean

Kikkoman
24-08-07, 01:43 PM
Nicee!

'Scuse my ignorance, but can someone tell me how that cai works?

Seems to be a pretty popular mod with the mx5 guys, just wondering why it goes back to the fire wall.


..


Labeled diagram would be great! Yes, MSpaint will be good enough.

:D

Shiri
24-08-07, 01:52 PM
Those wheels win all day...

Babalouie
24-08-07, 01:54 PM
Nicee!

'Scuse my ignorance, but can someone tell me how that cai works?

Seems to be a pretty popular mod with the mx5 guys, just wondering why it goes back to the fire wall.


..


Labeled diagram would be great! Yes, MSpaint will be good enough.

:D

You drill a hole in the firewall, and the end of that tube goes thru and sucks cold hi pressure air from the empty space between the firewall and the base of the windscreen.

Andy Wana
24-08-07, 01:56 PM
And it'll give the cabin a nice induction roar as well
Especially good if you are in the passenger seat (where the CAI usually sits)

Babalouie
24-08-07, 02:24 PM
Here's some food for thought on wheels:

Work Equip 03
http://i106.photobucket.com/albums/m255/MX5_Dorifto/MX5/P1017194.jpg

Work Equip 01
http://i106.photobucket.com/albums/m255/MX5_Dorifto/MX5/view2.jpg

http://i106.photobucket.com/albums/m255/MX5_Dorifto/MX5/P1017078.jpg

SSR MkII in 14in
http://i106.photobucket.com/albums/m255/MX5_Dorifto/MX5/132479162_b26a2d860f_o.jpg

SSR MkII in 13in
http://i106.photobucket.com/albums/m255/MX5_Dorifto/MX5/mk-3.jpg
http://i106.photobucket.com/albums/m255/MX5_Dorifto/MX5/olive20rs1.jpg

14in Watanabe
http://i106.photobucket.com/albums/m255/MX5_Dorifto/MX5/99041807.jpg
http://i106.photobucket.com/albums/m255/MX5_Dorifto/MX5/DSCN2061.jpg

13in Watanabe
http://i106.photobucket.com/albums/m255/MX5_Dorifto/MX5/oasis1.jpg

15in Watanabe (hard to find in RWD dished offset)
http://i106.photobucket.com/albums/m255/MX5_Dorifto/05.jpg

Jazzle
24-08-07, 02:34 PM
I vote for work equip 01, ssr mkII 13",,,

watanbe is getting too common these days






so when you gonna fit a GT wing deez?? haha

Justin Fox
24-08-07, 02:35 PM
yUMMY!

Babalouie
24-08-07, 02:42 PM
Watanabes are sooooooo 2006 :)

Andy Wana
24-08-07, 02:44 PM
BBS RS GT?
http://www.z1auto.com/images/bbsrsgtchris.jpg

McCoey
24-08-07, 03:48 PM
Nicee!

'Scuse my ignorance, but can someone tell me how that cai works?

Seems to be a pretty popular mod with the mx5 guys, just wondering why it goes back to the fire wall.


..


Labeled diagram would be great! Yes, MSpaint will be good enough.

:D

I had it explained to me regarding air flow and what happens around the base of the windscreen, basically this type of CAI utilises the high pressure found at the base of the windscreen. This reduces intake temperature and vacuum, increasing power and torque. Basically alot of the CAI's fitted to cars (especially the generic ebay type) are worse than the OEM systems, sure they may provide colder air than OEM, but as for air pressure and creating a ram effect they are the oposite in alot of cases. They give you turbulence instead, which decreases air 'flow' so to speak, you'd have to be doing well over 160kph before there would be any increase in HP or torque.

this si where this system is better, as it uses the air rushing over the bonnet at high speed. Fluid dynamics is somthing I am only just now starting to comprehend, but thats where its at. I hope that poor explination helps.

Babalouie
24-08-07, 04:16 PM
The air rushing over the bonnet has to change directions at the base of the windscreen, so that is a point of hi pressure, cold clean air.

deez
24-08-07, 05:33 PM
Apart from doing what it's supposed to (good), the CAI also makes my dashboard vibrate when I up it on the throttle (bad) :lol:

Philip...don't be upset mate! Ur stepping into another realm...the realm of Vtak goodness :twisted: I promise I'll take you around with my car should u come down to Syd for a visit :)

Thanks for the ideas with rims Babs and Andy! I think my fav has to be the SSR Mk III's and the Work Equip 03's. Yeh I agree....Watanabe's are kinda last year ;)

Babalouie
24-08-07, 06:04 PM
Thanks for the ideas with rims Babs and Andy! I think my fav has to be the SSR Mk III's and the Work Equip 03's. Yeh I agree....Watanabe's are kinda last year ;)

Here's what the SSR MkIIIs look like in 14x7 +12 (same size as my MkIIs)

http://i106.photobucket.com/albums/m255/MX5_Dorifto/MX5/p6.jpg

http://i106.photobucket.com/albums/m255/MX5_Dorifto/MX5/p4.jpg

http://i106.photobucket.com/albums/m255/MX5_Dorifto/MX5/p2.jpg

http://i106.photobucket.com/albums/m255/MX5_Dorifto/MX5/p1.jpg

uknowsergio
24-08-07, 06:31 PM
Thats a clean car man. ;)

Mr Happ
24-08-07, 07:01 PM
Deez, how about Gold I STYLING RPF1s in 14X7 +19.5 :cool: .......not dishy i know, but i love them

http://img291.imageshack.us/img291/7200/crgold1jv1.jpg

Babalouie
24-08-07, 07:09 PM
Deez, how about Gold I STYLING RPF1s in 14X7 +19.5 :cool:


What's the pricecheck on those Rob?

Mr Happ
24-08-07, 07:16 PM
JPY 167,500 inc shipping (exc duty/gst) or thereabouts , about JPY 2K a wheel cheaper for F1 Silver. Weight 3.9kg, Machined for MX5 Centre bore.

Babalouie
24-08-07, 07:21 PM
That's a really good price. My regular Enkei dealer in Japan said he couldn't get those and that they were only for MX5 tuners....and Car Make Corn's wanted Y36k each before shipping.

Mr Happ
24-08-07, 07:27 PM
Yep, its a good price. You need someone to go to I STYLING Hamamatsu directly. They definately arent available direct from Enkei, only through IRF who has special orders made up, they also sell them to other Roadster tuners. I think they may actually have a new finish available soon....refer R&S 51 towards the back - doesnt look like the normal silver to me.

rodent
25-08-07, 12:32 AM
Looking good Derek! You, Andy Wana and RaYmO are starting to give red car drivers a good name... :P

deez
25-08-07, 12:57 AM
Thanks Jonno! There's still a long way to go till it's finished, but I appreciate the feedback from everyone! :)

Daniel - SoAsianDVD
25-08-07, 07:36 PM
Top looking car deez! Gotta love the sound of that CAI huh? The Best.

rance_RPS13
25-08-07, 08:23 PM
Watanabes are sooooooo 2006 :)



sportmax 002s are in thing in 2007

Andy Wana
26-08-07, 12:48 AM
Looking good Derek! You, Andy Wana and RaYmO are starting to give red car drivers a good name... :P

Someone's got to do it someday, Jonno :o
I am probably the lamest of the lot though
Derek and Ray are making me look bad now :lol:

Babalouie
26-08-07, 12:51 AM
sportmax 002s are in thing in 2007

I dunno tho...they have fallen out of favour with the US Roadster guys already. Everybody went out and got a set, now there is a bit of a backlash cos they have been too popular :D

Alfadog
26-08-07, 12:00 PM
Bloody hairdresser fashion victims...

Mr Happ
26-08-07, 02:22 PM
I dunno tho...they have fallen out of favour with the US Roadster guys already. Everybody went out and got a set, now there is a bit of a backlash cos they have been too popular :D

Yeah, im not a fan myself....you can certainly have too much of a good thing :lol:

And as for the US Roadster guys, basically southern californians...a lot of the idol cars on Clubroadster arent particularly JDM style cars anyway. The nuances are lost and everything is over the top. Just look in r&s, you dont see a lot like that.

Babalouie
26-08-07, 02:31 PM
Yeah, im not a fan myself....you can certainly have too much of a good thing :lol:

And as for the US Roadster guys, basically southern californians...a lot of the idol cars on Clubroadster arent particularly JDM style cars anyway. The nuances are lost and everything is over the top. Just look in r&s, you dont see a lot like that.

Ya, USDM/JDM style is really its own thing now, and is sortof like a cartoony exaggeration of true JDM Roadster style. Nothing wrong with that of course, but the Yanks tend to go even bigger on the wheels, and even lower, to the point where you wonder if the car can drive at all.

Mr Happ
26-08-07, 02:32 PM
Exactly, i was going to say its a caricature of the JDM Roadster.

deez
26-08-07, 04:11 PM
Deez, how about Gold I STYLING RPF1s in 14X7 +19.5 :cool: .......not dishy i know, but i love them

http://img291.imageshack.us/img291/7200/crgold1jv1.jpg

Those are hot! Are they Enkei's?

Mr Happ
26-08-07, 05:15 PM
Yes mate. If you are serious about a set i can put you on to the supplier.

Babalouie
26-08-07, 05:21 PM
Those are hot! Are they Enkei's?

Ya, Enkei RPf1, but made in a +19 RWD offset and in a very MX5 specific 14x7 size. Special custom production run for just the MX5 market, and not an official catalog Enkei item (and normal Enkei retailers in Japan can't get them).

deez
27-08-07, 07:22 PM
Top looking car deez! Gotta love the sound of that CAI huh? The Best.

Thanks Daniel! However I'm still a long way to go from the quality of tune of your/ mr fox's old mx5...mate you gotta buy it back! :) Yeh the CAI is awesome! Especially anywhere from 4k onwards it sounds amazing...it just makes everything feel that much more frenetic and hardcore


Bloody hairdresser fashion victims...

You're secretly yearning some fashion tips too aren't you Alfadog ;)


Ya, Enkei RPf1, but made in a +19 RWD offset and in a very MX5 specific 14x7 size. Special custom production run for just the MX5 market, and not an official catalog Enkei item (and normal Enkei retailers in Japan can't get them).

Thanks Rob and Babs for the info...I think I'll do some research first and see what's out there but you guys have given me a good place to start!

Looking for some feedback from everyone....reckon I should slam the car more? Or not?

http://i142.photobucket.com/albums/r119/dereklau_2006/100_0216.jpg

Problem is I don't have coilovers so anything I do will have to be lower springs :( I was thinking of Lovell as I heard they are really low, not sure if that's true or not. I could always go King Superlow's but I'm not sure how that would translate in terms of ride quality and handling. So I'm keen to try something that's good quality and will be a good match to the AGX's.

And yes I could trade in the AGX's for a set of Buddyclub coilies but they've only been in there for a month or so....will be a waste :P

rodent
27-08-07, 08:43 PM
Dang, that looks low enough already... :D

Any problems with speed bumps or driveways? Mine was a little lower (mostly due to stock wheels) and they gave me plenty of grief, but I loved having to take those bumps ricer-style lol!

deez
27-08-07, 08:52 PM
hahaha

nah...no problems with speed humps at all, but driveway entrance and exits HAVE to be taken at an angle....as the scrapes on my front lip will attest... :oops:

i'm still thinking the rear is sitting too high...no?

Alfadog
27-08-07, 08:57 PM
I think it looks fine, and like you say lower isn't always better.

Why not spend money on some of your other shopping list items?

Andy Wana
27-08-07, 09:03 PM
Slam it any lower and my car will look like a 4WD beside yours
I wouldn't lower it anymore since it'll be a nightmare negotiating speed bumps and ramps, Deez

Maybe racing harnesses if you want to finish off the Sparcos nicely?

deez
27-08-07, 10:25 PM
It looks like it may have had a bit of a lean with the old suspension too?

I wasn't able to corner fast enough to have proper lean angles as the handling was pretty bad :P But when I did have the rear coming out...on opp lock there was definitely tons of lean. If you are looking for a sussy upgrade in the future I'd recommend what Rob/Babs have done...go for a coilover setup. Or for a lower budget then a Koni + Eibach/Kings setup or an AGX + Kings setup like mine.

I'll stay away from second hand suspension as best I could too....just my 2c.

Mr Happ
27-08-07, 10:58 PM
Deez, if you do decide you want the car lower then please go the coilover route. There would be nothing worse than going to for a "lower" spring and having the rake wrong, or just being too low and having to pull them out and go back you your old springs. A waste of time and money.

I have to say i am really happy with my Tein Basics, i got these from the states an they were about 1200 delivered. Spring rates are 7kg/6kg and for someone coming from Koni/King and Koni/Eibach they are a big improvement in terms of control and as good if not better for comfort. The higher spring rate isnt noticeable with regards to comfort in that the shocks are valved by Tein to run these spring rates. They are height adjustable only, however i reckon the stock set up will prove pretty good. The US Autocrossers and Road racers rave about these coilovers as THE bang for buck suspension mod. If you want to play with the damping Tein Mono Flex or SS is the go. If i was to do it again now, i would go Mono flex, simply because of all the other cash i have spent on the damn car, why not go the whole hog on the suspension! :P

As for your ride height, looks ok to me. I am fairly low and i would not be that low if the car was daily driven.......i sometimes bang the chassis rails on speed humps and thats no fun.:rolleyes:

Alfadog
27-08-07, 11:07 PM
I wasn't able to corner fast enough to have proper lean angles as the handling was pretty bad :P

Actually I meant it looks like it might have been a bit lower on the right than the left? Or maybe it's just my imagination.

deez
27-08-07, 11:41 PM
Thanks for the feedback folks! Yes Alfadog I think even now the car is still slightly lower on the driver's side than on passenger's side, but I've had it explained to me that it's because the springs take a bit of time to settle, and as the right hand side has more load most of the time (driver) it tends to settle quicker (hence lower) compared to the passenger side. Correct me if this is wrong ppl.

I took the car to skidpan day a month or so back, pretty much straight after suspension upgrade, and after a day of skidpan action the car came down so much more. So I'm imagining after a bit more hard driving (through right handers) the passenger side should come down a bit too :lol:

nath
28-08-07, 01:50 AM
only turn right - you'll have the left hand side lowered in no time!

deez
11-09-07, 12:28 AM
Roadster update! 10/9/07

HKS headers, X-Force hiflow cat, K1 Racing catback. Installed Saturday :)
http://i142.photobucket.com/albums/r119/dereklau_2006/DSC00882.jpg

David and Daniel @ MX5 Mania...welding on the flanges at the cat
http://i142.photobucket.com/albums/r119/dereklau_2006/DSC00883.jpg

I reset the ECU tonite and the car is running rich atm...hope it sorts itself out soon.

Coming mods

HKS headers (installed)
K1 Racing catback exhaust (installed)
Clear side indicators w/ clear side reflectors (installed)
Zoom Engineering fuel cover (installed)
Short antenna (installed!)

Planned mods

Hiflow cat (installed)
Remove and shave badges (front badge removed...discovered holes underneath) :evil:
Work Equip 03 silver/black in 14"x7" w/ +10 to +15 offset
Slotted rotors w/ new brake pads
Replace all hoses
Replace all spark plug leads
NB 1.8 engine upgrade?

qikshift
11-09-07, 01:05 AM
love the progress mate, keep it coming!!! i have just had kyb's and kings installed and have noticed the same deal with the left rear especially sitting up higher.. has yours settled now ?

Andy Wana
11-09-07, 01:16 AM
Derek, go with NGK Iridium IX spark plugs next time around
Supercrap, Repco and Autobarn do have them on specials from time to time

StanTheMan
11-09-07, 08:01 AM
Derek, go with NGK Iridium IX spark plugs next time around
Supercrap, Repco and Autobarn do have them on specials from time to time

those are a wast of money in my opinion. Get the plug with the correct heat & gap. Change them with every oilchange.
also better to invest that money in decent ingnition plugs.

deez
11-09-07, 10:21 AM
love the progress mate, keep it coming!!! i have just had kyb's and kings installed and have noticed the same deal with the left rear especially sitting up higher.. has yours settled now ?

It still hasn't settled to the stage where the left and right rears are at equal height lol....I think it's probably because King springs are relatively soft compared to others on the market and hence more susceptible to differences in weight maybe...

Just out of interest what stiffness setting are you using for your car? Mine's been set on '1' from the start, but I'm thinking of putting them up to '4' to see how that goes :P

rodent
11-09-07, 12:19 PM
those are a wast of money in my opinion. Get the plug with the correct heat & gap. Change them with every oilchange.
also better to invest that money in decent ingnition plugs.

I have to agree with Stefan there. Had Iridiums in my car and they made no noticeable difference. The magnacore blue leads on the other hand were great!

Oh, and you're running your KYB's at 1? Soooooft =P Run'em at least 4 heheh... What alignment settings have you got with it..?

deez
11-09-07, 12:25 PM
Oh, and you're running your KYB's at 1? Soooooft =P Run'em at least 4 heheh... What alignment settings have you got with it..?

LOL.....they're soft to cope with the shit roads around my area (read Canterbury Rd...Kingsgrove Rd, and Parramatta Rd).

But yeh...definitely gonna dial them to 4 tonite and have a run around to see what difference it makes :)

Alignment is half street/race, done by that place in Woolloomoolloo (can't remember the name off the top of my head)....can't remember the specs exactly either lol but they're about -1.5 camber all around, with slightly more on the rear (by observation)

deez
11-09-07, 12:27 PM
I have to agree with Stefan there. Had Iridiums in my car and they made no noticeable difference. The magnacore blue leads on the other hand were great!

What difference will new leads make? Interested to know from your past experience guys!

rodent
11-09-07, 12:40 PM
Well I found there was more responsiveness with the pedal, and less hesitation at high loads. But then again my old leads were pretty shagged when I replaced them, to the point where the whole thing was misfiring under load.

I guess with the suspension and alignment it really depends on quite a few factors, especially how you like driving it. I was joking about 1 being soft, from what I've heard King springs are actually pretty harsh so if 1 is comfortable for you then that's all that matters :P

But yeah, crank'em to 6 at the track lol.

Babalouie
11-09-07, 12:49 PM
What difference will new leads make? Interested to know from your past experience guys!

The problem with the MX5 is that it is very hard on leads, for some funny reason. Also doesn't help that the oem leads aren't of the best quality.

In a nutshell, the MX5 has a low-tech "wasted spark" setup, where instead of four individual coilpacks, there are just two that fire two cylinders simultaneously as a pair. The issue with this is that for each combustion cycle, the spark will fire twice (once on the exhaust stroke). This is pretty harmless but it does mean that any lead will last half as long.

Also this setup means that the second spark plug of each pair has a backwards-current. The zap travels down one lead, fires that plug, goes thru the head, up the second plug (which fires simultaneously), backwards up the second lead to the twinned coilpack. AFAIK this means that the voltage is extra high to ensure that the second plug gets a decent zap.

Add to the fact that the MX5 engine bay isn't well ventilated and there is a lot of heat, and IMHO stock leads only have a lifespan of 6mths. Good quality aftermarket leads will last longer but you still will feel a response gain from replacing them every 2yrs.

rodent
11-09-07, 01:01 PM
Babs would this also explain the "weak" Mazda coilpacks?

Babalouie
11-09-07, 01:08 PM
Babs would this also explain the "weak" Mazda coilpacks?

Nah, all coilpacks fail eventually, they're like lightbulbs. But the position of the coilpack right at the back of the engine where there is no airflow doesn't help.

Andy Wana
11-09-07, 01:49 PM
I have to agree with Stefan there. Had Iridiums in my car and they made no noticeable difference. The magnacore blue leads on the other hand were great!

Oh, and you're running your KYB's at 1? Soooooft =P Run'em at least 4 heheh... What alignment settings have you got with it..?

Well, I have the Magnacore leads in the car ... that probably explains the difference I felt when I replaced the old leads and sparks

Babalouie
11-09-07, 01:55 PM
Oh BTW the reason why platinum/iridium plugs don't last on MX5 is because the current on 2 of the plugs goes backwards.

And on the NGK plugs, AFAIK the platinum/iridium is only on the electrode tip, so it's on the wrong side for 2 of the cylinders that go backwards.

I did a fair bit of experimentation with NGK heat ranges from 5 to 8 and the stock recommendation of NGK BKR6E11 seemed to work best.

deez
11-09-07, 02:38 PM
Sweet, thanks for the tip guys. Looks like NGK BKR6E11 will and some Magnecor leads will be on my list next!

Andy Wana
11-09-07, 02:51 PM
Derek, you can get the Magnecor leads from Thundercords
They are located in Granville, so I assume they are not too far from your house

Thundercords
Unit 2, 20 Crescent Street,
GRANVILLE, NSW 2142

Phone: (02) 9897-3777
Fax: (02) 9897-3776

Contact: Bob or Neil

qikshift
11-09-07, 03:31 PM
I have slowly started to notice the left side come down.. however i need to get an alignment done this weekend anyway so maybe that will address it perhaps i dunno!!! lol. Anyway when they were installed they were set at 3 i bumped them up to 4 all round and noticed the difference.. i plan to go to 5 all round this evening heh the firmer the better i say!



It still hasn't settled to the stage where the left and right rears are at equal height lol....I think it's probably because King springs are relatively soft compared to others on the market and hence more susceptible to differences in weight maybe...

Just out of interest what stiffness setting are you using for your car? Mine's been set on '1' from the start, but I'm thinking of putting them up to '4' to see how that goes :P