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

Choochooman 09-26-2015 08:12 PM

2 Attachment(s)
Well since you guys didn't bite, I'm going to go ahead and update.

Hopefully Sean will chime in himself, but word on the street is that the car is now at a shop awaiting a dyno tune.

https://www.miataturbo.net/attachmen...ine=1443312766

https://www.miataturbo.net/attachmen...ine=1443312766

triple88a 09-26-2015 11:47 PM

Y U NO INTERCOOLER?

Arca_ex 09-27-2015 01:10 AM

I'm too lazy to read the rest of the thread but... are you running methanol as a primary fuel?

If not, why the hell don't you have an intercooler?

Sean 09-28-2015 11:01 AM

I have not intercooler and have not had one for a long time now. The car is finally back together. My baby is now almost 2 and I have been finding time to work on it. So here is the quick and dirty. The car is currently at Freed Engineering here in Maryland to get tuned. I am running pump 93 with methanol injection. No water mix 100% methanol at a rate of about 20 gallons per hour. This is considered aggressive as far as methanol goes but it does the job well. I am getting it tuned will be 18-24 psi depending on what the tuner feels is ok. Shooting for 500whp anythign over that is just bonus. The car is now running an r154 transmission I was tired of blowing up the w58's I blew up two. I got rid of my MT drag radials for some 235/50r15 toyo R888 these should make for a great street tire. I will post up some pics soon and will let you all know how the tune session goes should be tuned in the next week and I cannot wait. The car has been sitting almost two years and I am ready to play with it and make some people cry..

Shortpersonbk 10-04-2015 07:50 PM

What intake manifold is that?
I just purchased a 2jz gte with vvti to put into my miata and i do not want to deal with the hybrid throttle body it has. I see ebay intake manifolds and dont know if i want to risk it but the only other options i can find cost 2-3k for just the manifold so thats a bit out of my price range.
Also what exhaust manifold or did you make it your self? Is there enough clearance for a turbo and a tubular manifold?

Sean 10-05-2015 11:44 AM

The intake manifold is one I custom made. I cut the runners machined them flat and made the plenum and base plate and had a local guy weld it up. The throttle body is an ebay 90mm (I should have used an 80mm) and I used an adapter from the Q45 tps to a toyota tps. It is the same adapter as the greddy adapter but I made this one.
They sell some bolt on uppers now for around $350 on ebay that are a good deal and fit well. They also use the Q45 style throttle body.

Choochooman 10-23-2015 10:03 PM



Just going to leave this here.....

Sean 10-23-2015 10:25 PM

Just want to inform everyone that the chase car in the second part of the clip is an audi s4 with upgraded turbos methanol and a tune. I will be getting some more videos in a few weeks. I am going thru the brakes and installing a new methanol controller and pump. The video above is on 15psi of boost and nothing over 5800-6000 rpm due to a lean condition and fueling prob none the less the car still scoots. Audi had some minor fueling issues as well both are pretty much sorted now and hoping to get some vids of us at the track in nov. we have a little track day planned at Mason Dixon drag way so it should prove to be fun.

Choochooman 10-23-2015 10:34 PM

Yup ^. Even then, it shows in the video how hard it was to keep up. I have a feeling there's going to be a second or so difference at the track....

BTW, I didn't realize Youtubes face blurring was so damn extreme. Who the hell knows who was driving in these videos? Not me.

jtsoldier 10-27-2015 01:49 AM


BTW, I didn't realize Youtubes face blurring was so damn extreme. Who the hell knows who was driving in these videos? Not me.
Try the rear vision mirrors...

Choochooman 10-27-2015 07:57 AM


Originally Posted by jtsoldier (Post 1278831)
Try the rear vision mirrors...

Lol everyone points that out. Really not concerned with it.

18psi 10-27-2015 09:29 AM

I really want to see a dyno plot

turbofan 10-27-2015 01:55 PM

I really want to see the Audi guy with both hands on the steering wheel.

OGRacing 10-27-2015 02:14 PM

i love the hater pipes lol

aidandj 10-29-2015 05:21 PM


Originally Posted by OGRacing (Post 1278989)
i love the hater pipes lol

Needs a flapper

4" Exhaust Stack Pipe RAIN CAP COVER Zinc Plated - Newegg.com

Sean 11-02-2015 10:08 AM

I do not have a dyno sheet because I choose not to print it due to it being a short pull. It made 417whp at 5800 rpm at 15psi. It was having methanol issues. Turns out I had a bad methanol pump. I got a new pump and a new controller instead of using the aem to control it. I also had a shake so I also did some maintenance. I replace the brakes all the way around with some hawk HPS pads and turned the rotors balanced all the tires and installed the new meth kit. I will be driving it tomorrow to do some testing and hope to get a new dyno with the working methanol around 18-20 psi of boost should put it right at the 500whp range. I will keep you all updated.

Shortpersonbk 11-07-2015 09:11 AM


Originally Posted by Sean (Post 1280374)
I do not have a dyno sheet because I choose not to print it due to it being a short pull. It made 417whp at 5800 rpm at 15psi. It was having methanol issues. Turns out I had a bad methanol pump. I got a new pump and a new controller instead of using the aem to control it. I also had a shake so I also did some maintenance. I replace the brakes all the way around with some hawk HPS pads and turned the rotors balanced all the tires and installed the new meth kit. I will be driving it tomorrow to do some testing and hope to get a new dyno with the working methanol around 18-20 psi of boost should put it right at the 500whp range. I will keep you all updated.

Looking good!

Hows the hood fitment going?

Any chance of fitting it? Or maybe some large spacers in the rear to bring it up a little?

Sean 11-07-2015 09:53 AM


Originally Posted by Shortpersonbk (Post 1281693)
Looking good!

Hows the hood fitment going?

Any chance of fitting it? Or maybe some large spacers in the rear to bring it up a little?

The hood fits pretty good with some trimming I did.

Sean 11-07-2015 09:56 AM

On a side note the 100k motor decided to take a dump and pinch a ringland yesterday. So the 2jz Miata is coming apart. I'm taking the 2j out and putting in a v8. I have to decide if I want a 6.0l with a 6 speed or a 4.8l with an auto and turbo. If anyone wants the mount set to put a 2jz in their car I'll sell the front crossmember with mounts cheap. So the 2jz Miata is done and its time to move on to something bigger and better.

mx5autoxer 11-07-2015 10:09 AM


Originally Posted by Sean (Post 1281699)
On a side note...

That's a hell of a side note.


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