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-   -   2jz Miata build thread (https://www.miataturbo.net/build-threads-57/2jz-miata-build-thread-41570/)

Doppelgänger 11-30-2010 09:13 PM


Originally Posted by Sean (Post 661983)
No there is deff no plans for lots of track time and I have full racing seats for it and the 5 point harnesses. I am thinking of the advantages of chassis stiffness is the huge benifit.


Just do a HD bar and the additional door bars...that'll be more than enough chassis stiffening.

Sean 11-30-2010 09:29 PM

1 Attachment(s)
Well it is kinda late now my roll bar is for sale and this is going in its place. I would like to add a CRV makes an excellent transport vehicle.lol

Attachment 192476

I am going to install the cage in the near future picked it up online for $100. I am going to sell my cage and recoupe the money.

To add to the good news I did an awesome two gear hole shot tonight, it was sweeeetttt!!!!!!!!!!!! The rear is way to low need to get some new springs or something to bring it up because my rear subframe drags the ground on hard launches.:bowrofl:

So the next few things are to get the fan hooked up, finish getting all the intercooler piping right, install SAFC (don't hate), get tuned, beat streets.

Do massive burn out for break in!!:skid::owned:

Slow_Sc3 11-30-2010 09:41 PM

car sounded good off boost im sure it would sound 100x better with boost and a solid tune :D we need to work on rear suspension badly! layin frame on the street!!!

johnmatt 12-01-2010 05:29 PM

Did it actually hook on the launch?

Slow_Sc3 12-01-2010 09:50 PM

http://www.youtube.com/watch?v=F-mz7etW-Rg

sorry its dark and a cell phone but its something..

Sean 12-01-2010 10:35 PM

with the stock 2j no boost it seems to hook pretty good on the street but I can tell you now when we took it out of the drive way yesterday on the wet pavement there is no such thing as traction. I had a problem the first time we drove it with the rear cross member dragging the ground so I took the old front springs and put them on the back now all I need to do is take the new springs I put in the front back out and cut a 1/4 turn out of them and the car will have a really good stance. The funniest thing is after daily driving the car for 5 years when I sit and drive it now I feel and see miata but all I can hear is supra that is a total mental mind F*** let me tell you. I also finally bled out the brakes all the way and the 2001 miata sport brakes feel awesome even with the extra weight I feel no need for bigger brakes, I cant wait to really take it out and see what it does.

kotomile 12-01-2010 10:42 PM

So what rates are you running now, spring-wise? If it's something completely wacky front/rear be careful in corners.

18psi 12-01-2010 10:44 PM

Why don't you get decent suspension? or is your current just temporary?

cut/mismatched springs sound like trouble

Cspence 12-01-2010 10:45 PM

This is promising....can't wait to see it all tuned and ripping up the streets!

Sean 12-01-2010 10:45 PM

It is 7 inch 450# in the front and 7 inch 400# in the back so nothing too crazy I dont think. If anyone see anything way out of wack for this let me know please. I am also running a hollow 7/8 front sway and NB stock rear.

18psi 12-01-2010 10:52 PM

Did you get the rates so close to to eliminate understeer caused by the more weight in the front?

Cause most run higher up front and much lower out back.

kotomile 12-01-2010 11:00 PM

^ agreed. With such a heavy front end this sounds like a potential for trouble. Be careful out there Sean.

Sean 12-01-2010 11:01 PM

I got the rates from being a cheap ass really but they seemed to work out well. I estimated my front end to be about the same weight as an ls swap so did some searching on what springs they use for the swap and for a street car it seems to be 6" 450#-700#, being that I like a lower stance but not too low I went with a 7" 450# then realized how low the back was the other day so I started to look for what springs I wanted for that and decided I'll try the ones I took off the front witch were 7" 400# tokiko springs and slapped them on. They feel good in the back so far and ride height in the back is great, I will have to do some fine tunign as I drive it more but this is defiantly a street car so I wanted to stay away from a real high spring rate.

johnmatt 12-02-2010 05:11 PM

No way your front weighs as much as an alum LS1 with that heavy ass cast iron block. I bet 150# more isn't out of the question

Sean 12-02-2010 05:40 PM

Im not doubting my front end weighs more it just gave me something close to gauge off of. I took into account where I wanted my front end to sit, what it looked like before the swap and what it looked like after the swap and my conclusion was to put 450# in it. It worked out really well but I am no master of suspension in anyway so I am not sure what it will do to the handling of the car or anything else. The only thing I know how to do is drive it if it feels funny or the shocks feel too loose give them some more spring pressure. I am also using single rate springs to make tuning the suspension a little easier on my end.

Sean 12-02-2010 05:45 PM

Can one of the mod's change the title to have *With Vid* at the end people keep hounding me to do that. Thank you

Sean 12-02-2010 05:48 PM

Also I don't know if anyone watching the vid saw it yet or not but at 1:34 you can see a flame shoot out of the pipe.lol

Fireindc 12-02-2010 08:36 PM

Dopeness. +1 on getting you suspension set up before putting too much more power down.

Slow_Sc3 12-04-2010 11:15 AM

got the safc wired in last night no more soot :(

Sean 12-05-2010 09:35 PM

Got the safc working for now so it does not kill us working on it in the garage. On the other hand we have no way to tune because my super awesome innovate Lc-1 is a piece of junk so I ordered the parts to get my AEM wide band working just need to send the gauge to AEM to have them fix it and sell the innovate and never buy another one ever.

The good new is we got the inter cooler pipes all hooked up and the turbo wistles like crazy and there are no boost leaks I can currently see/hear. The bad is I need a tune so bad we took it up the street to test it and as soon as you hit boost it pops and shits its brain out. It shot a 3 foot flame out of the exhaust, so we took it back to the garage. Next on the list is cage, get gauges fixed.

I have to say thanks to for bringing his car over it is always nice to work on something different for the day. Being that we took his radiator out and the car is sitting he generously donated his coolant to the 2jz miata. So now no more draining/refilling every time we work on it. This may be something small but every trip to the parts store we have made in the last few days we always forget the coolant figures.

18psi 12-05-2010 09:38 PM

LOL the innovate reviews are always either I love it or I hate it.
It works great when it works, but if you have issues (which many people report having) they are usually a big pain in the butt.

That's why I went with AEM too;)

triple88a 12-05-2010 09:48 PM

Heh i'm on my 2nd bosch o2 sensor since i installed it last winter :D

Sean 12-06-2010 12:29 AM

Yea the AEM one is just easier I like some of the stuff the innovate has but it is not worth the hassle.

Sean 12-08-2010 07:02 PM

Ok today I went down to talk to the tuner and he said it will be around $250 to get the car tuned. So I will be looking to do it before Christmas but worst case at the beginning of the year. This means come beginning of January I will have some nasty vids to post if all goes well:)

johnmatt 12-08-2010 07:21 PM

You better!!!!!!

SLVMX5 12-10-2010 02:50 AM

hum...... reading a few pages have me switching back and forth on the idea of a swap already

WonTon 12-10-2010 03:19 AM


Originally Posted by SLVMX5 (Post 667177)
hum...... reading a few pages have me switching back and forth on the idea of a swap already

Hum......why dont you make a intro thead instead of makeing usless post!


Sean: im patiently waiting for some good footage of some nice full boost pulls. I need my fix...

Sean 12-10-2010 09:17 AM

I am planing on getting the car tuned soon after the first of the year. I have a lot of stuff going on right now so I may just start putting the cage in until it is ready to get tuned. I will let everyone know when its time so you guys can be ready for pics and vids.

Sean 12-11-2010 07:01 PM

I want this wing or something close to it. I love the way it looks and the fact that it is functional is just a huge plus.


http://pics.hoobly.com/full/9YNGS8W68OYEAMAU6S.jpg

Faeflora 12-12-2010 08:23 PM


Originally Posted by Sean (Post 666682)
Ok today I went down to talk to the tuner and he said it will be around $250 to get the car tuned. So I will be looking to do it before Christmas but worst case at the beginning of the year. This means come beginning of January I will have some nasty vids to post if all goes well:)

That is ridonkulously cheap. I read the manual on the APEXI FMIC er I mean SFAC and it seems pretty straightforward. It should be absolutely brutal with boost!

I was curious about intakes for your motor- I remember slosc3 saying that at some point you were going to put a drivers side intake on--

Is it one like this thing? ebay link

18psi 12-12-2010 08:28 PM

Its cheap cause the safc is about as basic as a voodoo box or power card.

I can't wait to see this thing in action too. I'll bet it will lay stripes well into 3rd.

Slow_Sc3 12-13-2010 04:59 PM


Originally Posted by faeflora (Post 668102)
That is ridonkulously cheap. I read the manual on the APEXI FMIC er I mean SFAC and it seems pretty straightforward. It should be absolutely brutal with boost!

I was curious about intakes for your motor- I remember slosc3 saying that at some point you were going to put a drivers side intake on--

Is it one like this thing? ebay link

that intake manifold is for the gte motor not the ge and its the same idea ill prob end up welding up a intake manifold for sean in the next year or so when he wants more power.

ps: that manifold can be found on another web site for $280 shipped

Sean 12-13-2010 06:45 PM

They also make that manifold for the GE and yes Slow_Sc3 is correct I will end up with one one day most likely the end of next year. I am going to take the extra manifold Slow_Sc3 has at the house and make a base flange at work then machine a section out of a piece of 3" or 4" tube make a back order a throttle body flange and give it to SLow_Sc3 to weld. Get some injectors and AEM then boom 550 WHP!!!!!!!!!!!!!

Slow_Sc3 12-13-2010 07:33 PM


Originally Posted by Sean (Post 668582)
They also make that manifold for the GE and yes Slow_Sc3 is correct I will end up with one one day most likely the end of next year. I am going to take the extra manifold Slow_Sc3 has at the house and make a base flange at work then machine a section out of a piece of 3" or 4" tube make a back order a throttle body flange and give it to SLow_Sc3 to weld. Get some injectors and AEM then boom 550 WHP!!!!!!!!!!!!!

I think I tossed that manifold in the trash like 37 and a half hours ago.... im guessing I should go dig it out now -_-

ps: 550rwhp would be pump gas your looking at like 700 on race gas easy....

pps: did my first oil change in my miata today will got me to use synthetic amsoil, had random whit sh*t growing in my clutch master cylinder... cleaned that out and refilled it clutch pedal feels amazing and transmission shifts soooo much better :D soon to be 1jz swap in 9 years 364 days lol

Sean 12-15-2010 01:00 PM

1 Attachment(s)
No major news but I did pick up this sweet new part. It looks a little tractorish in grey so I am going to paint it black. Hells yea:)

Attachment 192252

hingstonwm 12-15-2010 01:39 PM

Sweet, that will be the fastest tractor exhaust flapper on a miata. Seriously dude, please work on a real exhaust, thru the hood is cool and all, but it is going to get loud in a hurry.

Sean 12-15-2010 02:10 PM

I have no intention of keeping the exhaust through the hood for a long period of time it is just an easy way to do it for now. It is not nearly as loud as you would think but truth is the car is going to draw all sorts of attention by the police and the exhaust will just be an excuse for them to pull me over. I am just undecided on where I want to run it there is not a whole lot of room for it so I have to plan carefully but I am hoping by the end of next summer to have a full exhaust at least to the rear axle with a turn down at a minimum. For now though the flapper keeps the water out and is cool, but I do belive the exhaust through the hood will get old and my hood is all f***ed up so I need a need a new one, so one 3" hole won't hurt anything.

Faeflora 12-15-2010 02:30 PM



Wow the flapper... Awesome!!! 8" exhaust FTW I say

Sean 12-15-2010 02:54 PM

We did contemplate putting an adapter and a 6" mini stack out the hood just because lol but I think that would be a little over the top.

Slow_Sc3 12-17-2010 10:38 PM

miata needs more fuel im at +50% on the afc from 4k to 8k rpm's and its still lean :( anything over 12psi just breaks up and sputters.... tho trying to drive while keeping the boost around 10psi feels amazing... sucks the wastegate is a 1 bar aka 14.7 psi spring. "bad as6" got a short video tho we did end up putting like 5-6 miles on the miata tonight :D

18psi 12-17-2010 10:57 PM

LOVE the tractor flapper:giggle:

Sean 12-17-2010 11:18 PM

So the 2jz miata is a F****ing beast on 12psi but as Slow_Sc3 says it breaks up over that I need bigger injectors so judging by that it should be making closer to 450whp. :)

Here is the link to the fly by at the house sorry its at night again. When we drove it it was braking loose in 4th HELLS YEA!!!!

the first one is of the flames and flapper, the second one is the 2j miata laying down some boost!!!:bowrofl:

Sean 12-18-2010 01:17 AM

This is also only coming by the house in 2nd gear I started at about a 5mph roll

viperormiata 12-18-2010 01:26 AM


Originally Posted by Sean (Post 670556)



I fix. Car is a beast, I'm glad it's working out for you.

johnmatt 12-18-2010 09:45 AM

Looks pretty quick but we need some good videos of this beast with some decent tires on it

Sean 12-19-2010 06:04 PM

Yea it still needs a tune we went out and did some street tuning to see what it could do but after a short drive we found that my 440cc injectors were maxing out when the car was only at 9lbs. of boost problem with that is that when it goes over 9 lbs. it breaks up really bad and pops so I need to get some bigger injectors. I got 4 RC 750cc injectors from a friend but I need to source 2 more. As soon as this happens we can make some better vids. At some point Faeflyper is going to post his ride along vid he has from this weekend. The scary part about running out of injectors is that it is a know fact for the most part that a supra will make 400 whp on 440cc's so I am kinda afraid that I need more.

Slow_Sc3 12-19-2010 08:49 PM

NEED MOAR VID'S!!!!!

http://knowyourmeme.com/system/icons...jpg?1248987397

Sean 12-19-2010 10:33 PM

As soon as I get injectors we will do some more vids.

Faeflora 12-20-2010 12:54 PM

Some road pulls. Having gone for a ride in this car, I have to say that out of boost, the car is pretty quick- it feels like my setup when it was at 8psi and around 200hp. When boost hits though for the brief time before running out of fuel, it is fucking insane. The dyno should look very very good. The hankook ventus tires on there now obviously don't hook that great in 30degree weather in 1st and 2nd but third there is some traction-- before boost that is.

Going around the back roads, the car handles quite well. Sean was not pushing it too much because of the ahem occasional snow on the road but it felt like a Miata- good. Personally I think that the car will probably be a lot of fun to drive- the pleasure of boost plus solid low end courtesy of displacement. The driveline is obviously very solid with the solid mounts and it also shifted very positively.


18psi 12-20-2010 01:16 PM

so if you don't mind me asking, approximately what kinda price figure are you working with for this swap and everything you've done so far?

I have easy access to toyota powerplants and though I've never considered this swap before I just might;).
depending on how much cheaper it is than a v8

Sean 12-20-2010 01:19 PM

It this swap being very thrifty and not sending anything out that I did not have to I only have $3200 in it and then you have to discount the $1000 or so in parts I sold out of the car. So really I have $2200 bucks in it. With the possibilities of hitting 400-500whp with minimal modifications to the set up I think it far trumps any ls swap. Now I know there is pro's and con's but for $'s vs. hp this is the way to go.

Sean 12-20-2010 01:20 PM

Just so everyone know this vid is short shifting like crazy and the motor breaks up real bad past 4k or so my new injectors are on the way.

Faeflora 12-20-2010 01:37 PM

A video of idle at a gas station. Some other guy at the station took a realllll long look at the car as he walked by haha




BTW I think this car is a great candidate for the Grassroots Motorsports $2011 or $2012 challenge. Basically build a autocross, drag, track capable car for $2011 dollars. There are a few other cars on this forum who have done it, and one of the guys placed 4th or 5th which is very high because the competition is tough.

Link to rules: http://grassrootsmotorsports.com/for...t/14974/page1/

18psi 12-20-2010 01:41 PM

Just to be safe I'll assume 5-6k for the swap.
Still a ton cheaper than a LS swap.
not bad at all.


A friend of mine just picked up a 2jz-ge for 300 bux, mk3 5sp for 150 and 2jz bellhousing for 300. So I'm thinking 1k-1200 for the engine/trans/driveshaft/diff/axles sounds more or less in the range?

Id want to run an ffim though.


What decent engine management systems are there out there for this type of setup?
I will NEVER use an safc, so that's out the window.
Anything comparable to ms?

Braineack 12-20-2010 02:07 PM

You can hear and see the detonation... nice.

:facepalm:

TravisR 12-20-2010 02:14 PM

Adaptronic has plug and play and is fully sequential on the 2jz-GTE motor. ;) Insert motor/parts, clip Adaptronic on to end of loom. Walah. Full standalone with traction control/launch control/bbg all the goods for just about 1450 more.





Originally Posted by 18psi (Post 671201)
Just to be safe I'll assume 5-6k for the swap.
Still a ton cheaper than a LS swap.
not bad at all.


A friend of mine just picked up a 2jz-ge for 300 bux, mk3 5sp for 150 and 2jz bellhousing for 300. So I'm thinking 1k-1200 for the engine/trans/driveshaft/diff/axles sounds more or less in the range?

Id want to run an ffim though.


What decent engine management systems are there out there for this type of setup?
I will NEVER use an safc, so that's out the window.
Anything comparable to ms?


leatherface24 12-20-2010 02:44 PM

with the exhaust coming out of the hood, you dont smell all that shit coming in the car?

18psi 12-20-2010 02:49 PM


Originally Posted by TravisR (Post 671226)
Adaptronic has plug and play and is fully sequential on the 2jz-GTE motor. ;) Insert motor/parts, clip Adaptronic on to end of loom. Walah. Full standalone with traction control/launch control/bbg all the goods for just about 1450 more.

Thats cool. Is this the new 1280 one or a 420?
My friend is looking around for an EMS for his mk3 supra running a 2jz swap, should I send him your way?

He needs completely PNP

Sean 12-20-2010 03:54 PM

Leatherface - the only time I had a problem with fumes including my passenger is when it is idleing in the garage it will make you cry.lol

18psi. - There is a ton of options out there for PNP units MAPecu, AEM, Haltech and some others I am trying to go AEM just for the ease of use in the supra world. Anyone you talk to that has a modified supra will most likely tell you they are running AEM. You can get a pnp used for $400 - $500 and new for $1000 if you look around. MAPecu is good but is limited on what you can do. Tell your freind to PM Slow_Sc3 or me and I will get you in touch with him. He knows just about everything you could want to know about swapping MK2/MK3/MK4 supras and SC300's/400's. Just like in the miata world where Megasuirt dominates AEM is for supra's it part "I have a supra I need expensive name brand things" part they were the first to really make a good pnp for the supra so I would go AEM unless he can find someone who is willing to tune something different.

18psi 12-20-2010 04:15 PM

You are friggen awesome.

I'll tell my friend to contact you guys for help. He's one of those people that rarely gets online, so he doesn't know all the tips/tricks/info you guys have up your sleeve.

Keeps asking me for suggestions but I'm really not a supra guy so I know very little.
If you know anyone selling an AEM for under 600 I'm sure he'll buy it RIGHT NOW lol.

ps: have you heard of STINGR ECU?
Its supposedly an EMS that works fairly decent too. Any input on that?


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