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-   -   Whos got a turbo 12a they built themselves (https://www.rx7club.com/1st-generation-specific-1979-1985-18/whos-got-turbo-12a-they-built-themselves-347368/)

FB II 09-25-04 12:04 AM


Originally Posted by shm21284
I got 3000 into my fuel injection conversion alone.

which is exactly why most of us don't even think about this option. but definately not the only reason hahaha :D

mortenf 09-25-04 04:52 AM

Why not do like Simtech Racing here in Norway, and build the ultimate 12A? Its going to cost though....:) Take a look on the links below.

http://www.simtechracing.no/bilder/prosjrx2/505hp.wmv

http://www.simtechracing.no/bilder/p...laanke2004.wmv

http://www.simtechracing.no/bilder/p...heelieburn.wmv

The amazing thing is that the 12A actually lasts!

If you are looking for durable power, do it right, and go for Haltech, Autronic, etc and low comp rotors, together with an extend port and a laaaarge intercooler!

andyfc3s 05-08-05 02:57 AM

agogo pm me

PaulFitzwarryne 05-08-05 04:00 AM


Originally Posted by b_met
Are y'all just slapping turbos onto stock engines, or changing the internals?

Yes, what they are doing is just adding a turbo to an existing 12A carby engine as a cheap way of getting some more power.

A better but more expensive way is to use a factory 12A turbo efi motor which was used on some Japanese models including RX-7s. It's a far better engine with low compression rotors. The hot RX-2s and RX-3s went that way as the 13BT was too heavy. Keeping most components stock you can get 250hp intercooled, with 500+ if you port and upgrade the turbo. For example, with an upraded exhaust system and intercooler my 12A Turbo puts out nearly 225rwhp at 10psi in daily driver mode.

Dan_s_young 05-08-05 09:06 AM

this thread is kinda back from the dead but its got some good information on throwing together a turbo 12a....

zaridar 06-19-13 11:19 PM


Originally Posted by Gregs (Post 3478019)
"Turbo, exhaust manifold, carb hat, intake manifold, external wastegate, intercooler and piping- 137.00"
seanrot, i dont know where you are getting your prices from, but that list of parts right there equals well over 500 dollars, shit i payed 230 for my wastegate alone when i have my red car turboed

I got a street ported 0 mile 87 tII engine, tubular turbo manifold, tial wastegate, coils, alternator,CAS x2, clutch, flywheel, jay tech 4bbl manifold, 4bbl throttle plate, rising rate aero motive fpr intercooler and two boxes of rotary parts for $400 bucks!!! Most parts are in my car and working great... That doesn't mean that the next person is going to get that deal.. But it also doesn't mean I paid more than that...

zaridar 06-19-13 11:27 PM

I had a nice 12a turbo set up but it's not cool trying to tune it to run nicely... I blew my engine and went efi....

Mazda RX-7 EFINI TYPE 06-21-13 12:31 AM


Originally Posted by seanrot (Post 3525664)
your going to be hating life with that carb and a turbo. you need a special float that is damn hard to find. If you sweet talk rotaryshack he might try to make one for you. but he still in the experiment stage on those. he's close but doesnt have it exact yet.

With the Ida you shouldnt have a big clearance issue with a turbo so just get the s4 turbo and manifold oblong the holes and make it work. I might have a connection on a carb hat and float but its going to be really expensive $$$.

I disagree, since I bought a brand new IDA a couple years back and it came with a proper float. It was for my sigma turbo setup. The guy I bought it from told me that all the new ones came with boost safe floats.


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