Hello rotarts!

Bad news = Apex seals gone...
Good news = New streetported motor and GT35R going in next time (all fitted by me and my dad in my garage).

We're currently in the process of removing everything out from the engine bay (help from manual and various links). Soon as everything is out, I'm gonna purchase the turbo kit, 3mm seals, send housings for porting and finally bolt everything backup and hopefully all goes smoothly. We're around 40% done on removal process, still left with motor, tranny and twins.

I've got a few questions for now.
1. Since I'm going single turbo, what parts can I throw out? (twins,rats nest, what else don't I need?)
2. Would I need extra dowels to support a single turbo with high boost (20psi)?
3. Any opinions on running a single w/ stock radiator and clutch???

Current Mods:
1. 3" Exhaust system w/ HF cat.
2. FMIC
3. Microtech ecu
4. Blitz EBC
5. S8 twins (sequential)

Mods needed:
1. streetported housings + extra dowels?? (sent out to pros)
2. 3mm seals
3. Fuel + Ignition system
4. RX7store GT35R (T4) kit
5. Any necessary gaskets and bolts

Basically we're removing and fitting everything ourselves and leaving the porting and tuning for the pros.
Thanks alot and appreciate any helpful comments. I'll try and keep updating this thread as the project progresses.


Joseph Young

 

Then again, I could convert my S8 to full non-sequential and save alot of money! Any opinions......

 

It seems like you are taking on a pretty big project without even knowing whether or not you can use the stock rad and clutch with your single. You will need to upgrade both of those parts.

 

Id def upgrade rad since your going fmic, and youd be pushing too much power for the stock clutch especially at 20psi...also no you dont need extra dowels.

 

20psi that turbo will be on the edge of it's map on a Streetported REW. Around 65-67% eff. The .82 turbine will definitely hurt you up top. Your kinda fighting yourself. You'll need to run higher boost because the higher backpressure to make the power your probably looking for, which will in turn cause the compressor inefficiency. If that is the route you go make sure you find a way to combat the higher AIT's

 

You don't need extra dowels nor do you need 3mm seals. The .82 hotside is also a big mistake, as sean up above states.

Honestly man, it seems like you're in way over your head. I suggest a lot of research and reading, good luck to you

 

If you are wanting to run that kind of boost have you considered the GT40R? And you definately need a new clutch and radiator as stated above. Maybe consider a lightweight flywheel since everything is already torn out and they are relatively cheap.

Oh, and I don't see that anyone has mentioned that you will need new injectors, fuel rails, fuel pressure regulator, injector resistors and fuel pump. All that old stuff can be junked as well.

Also looks like you need a wideband O2 sensor.

 

Why do you guys say that the .82 hotside is a mistake? Im about to order that same kit because I want fast spool and I have no desire to ever drag race, do highway runs or spend any time on a dyno other than tuning. Would it just e a poor choice for anyone looking for big numbers?

 

Then the .82 would work well for you.

Jason

 

Thanks heeps for the input guys.
I'm still removing everything slowly and got alot of parts lying around in my garage! I'm now debating on still going single or converting my twins to full non-seq. I'm reading alot on the forum all night acutally till about 3am, to try understand what I got myself into! But in fact, I'd rather do everything myself and learn alot on the process...

Thanks again, I think i was to g'd. (was thinkin about FD drift nuts with screaming pipe going off lads!!)

 

I forgot. When you you actually needs extra dowels??

 

Above 600rwhp.

as stated above, 3mm seals are a waste.

 

The small snail isn't the mistake in itself, it's the combination you expect to acheive. If you said .82 hot snail @ 12-14lbs pump then it would be perfect. For 20+lbs you would need a 1.00 - 1.15 but most likely 1.06. As for the other replies it's because your basic questions seem like you have no idea what 20lbs entails (race gas, water injection, complete new fuel system, etc).