Baught a twin turbo of an FC i think any way. Got it for 300 seems functional and all but my question is can this turbo be used on a 12a will the bolt patern on the turbo match or not? Im think no but i figured id ask befor i started rip and tear on the car.

 

Ok, if you indeed have dual turbos they are from an FD. The FC was a single turbo. The manifold used with the turbo would be for a 13B, will not work for a 12a if that is what you are asking.

 

The only problem in doing that is a square peg doesnt fit into a round hole.

 

the manifold CAN be used...just slot the holes to fit on the 12a exhaust...your DEFENTLY gona wanna search this because i myself started a thread on this EXCATE subject....soo search aight.

Brad

 

thanks fellas quick responces i figured it wouldn't fit easily i have a 13b on the way and yes it is the sequential twin turbo but im thinking about going to constant twin. ok nother stupid question can a carbed 13b be converted to fuel injection? I have a built 13b but its carbed i can get a running but un tuched 13b fuel injected can i just swop parts?

 

yea you can convert, but for the money and hassle i wouldnt mess with it. just turbo your carbed 13b!

 

With those twins your going to have to do alot of work....make them non sequ. .......although they can support alot of hp.....upwards of 550 that I know of..

 

Ok i looked but can't find any think on converting from sequential to non sequ. any body thats done it? have Pics? I like picks to go with explinations, works better with my simple red-neck brain. another adition to this how much boost can i push through the carbs safely. i believe the carbs are duel webersnot sure of the flow rates havent brought the motor home yet.

 

are the twins off of a 3rd gen or a cosmo

 

this site shows how to do the 3rd gens....the cosmos are smaller but might work for them to....on my 13b TT I did the conversion and it works great with a free flow exaust

http://www.scuderiaciriani.com/rx7/how-to_turbos.html

 

thinkin 3rd gen they look like the one on this site http://www.workspower.net/rx7spirr28tw.html exept i don't have the compresser piping

 

Nope. You'd be lucky to get 350. 380 with the newer
2001 higher flowing models.

 

today was the first time i could really look at the turbo. I found some small cracks in the inner part of the exhaust inlet they seem to be more like surface cracks is this a major problem the rest of the casting seem strong.

 

They all crack with time. It's normal. Just keep using them until you upgrade to a single Turbo later.

The twins are nice & responsive, but they run out of breath and are inefficient at higher boost levels/high RPM.

 

wastof time tryng to get the twins to work, your better off getting a s4 or s5 turbo/ manifold....way more reliable and easier to work with

 

What kind of power could i expect from them with a StreetPort and decent exhuast system no cats and such. Well one of you guys said about ovaling the holes to use it on my 12a i may do that, and just get a big single for the other car with the 13b.

 

Thats funny....there is a 3rd gen with factory twins (new)......puting out 550hp.....must be magic......when I rode with him it shure as hell felt like it......(550 is on race gas)

 

Sorry. But I don't believe it. Show me flat ten second timeslips at over 130 mph, and I'll believe it.

A third gen with 350-400 hp Feels ridiculously fast too.

BTW, Since the (twins) Turbos are so small, the boost hits instantly, and "feels" faster than a large single Turbo.

 

yes....it is freakish fast I should now....I have the same motor trany with stock ecu and non sequ turbos

 

by the way I could not belive it when I heard that they where twins....I looked for my self , I dont see how they did it......lot of tunning..........

 

ok another question what kind of boost pressure should i be looking at?

 

atleast 1psi. god i gotta lose weight.

 

funny yeah a whole 1 psi i mean like maxsafe boost 10-12 psi somthing like that. hell my capri runns like 7 stock.

 

i couldnt agree with you more, direct

 

Yeah, i'm not even into 1/4 mile times, but even i have to chime in on this one. 550 on the twins is a myth at best and i'm willing to bet on it.