Rotoracer33

I've been reading on aaron cake's n/a turbo conversion. I have researched a ton about this and desided iI want to go ahead with a n/a turbo. I do have one question, How reliable is it to do this? I would like to keep my car as a daily driver after it is done. Is this realistic?

I have the parts for running a stock t2 turbo, intercooler modded as a fmic, and the 2.5" spaced exhaust manifold.

I would like to run 550cc primary, 720cc secondary injectors, FD fuel pump and S-AFC, aeromotive FPR, I'm not sure about ignition yet. Any imput on that would be great as well.

I currently have a 87 n/a with 3500 miles on a rebuilt streetport, with no emissions, and some mild mods on the side.

I just don't want to spend the time and money on this and it not last.

Thank you for the support.

YaNi

iTrader: (2)

It will last awhile if it's tuned correctly. I would look for something more than an AFC; either RTEK or standalone so that you can adjust timing as well as fuel.

TweakGames

iTrader: (3)

im 3/4 the way through my na-t swap and I was wondering kinda the same thing but.. what is the the problem? The higher compression causes it to lean out cause not enough fuel? If you have the turbo ecu tpressure sensor t injectors t fuel pump and t fpr you should be fine right? (I could be wrong im wrong a lot )
~Thanks
Tweak

lax-rotor

iTrader: (1)

I would be hesitent to just do a straight swap over like that and think everything would be kosher. You're dealing with a high compression ratio so the fuel curve could still be too lean at high RPM. I think this is the main reason why AaronCake went with a SAFC first and then over to a stand alone(I may be wrong on him going over to a stand alone but I think that's what I read somewhere). It's all in the tuning.

SnipeD_RNA

If its able to be tuned (stand alone) and is tuned there is no problem.

Mankdrake 2661

iTrader: (8)

I'm going on 1 year of my turboed N/A.
I'm running 5 psi for now. Completely stock internals and a s5 turbo. No real problems. But I do have a T2 ecu, with an rtek chp and a SAFC.

TweakGames

iTrader: (3)

crap ok I guess I will have to get an safc and go get it tuned at a dyno. There goes 200$

Is there a way to disable boost easily? Just keep the wastegate open somehow?

TweakGames

iTrader: (3)

I had a friend that recommended running the turbo but pulling the cas back a couple degrees. He says that the higher compression should negate the timing. Do you think that would be fine for 5 psi on a t2 ecu? (stock 550 injectors and t2 fuel pump, stock s4 na block)

Aaron Cake

iTrader: (1)

5 PSI? It's not even turbocharging the car to run 5 PSI.

Rotoracer33

so do you think adding an rtek 1.7 to a t2 ecu and the rest of my setup above would work, if tuned right?

TweakGames

iTrader: (3)

So I shouldn't worry about anything? Just run the turbo on the NA motor with the higher compression with t2 ecu and 550 injectors? Everything should be fine at ~5 psi?

TweakGames

iTrader: (3)

I dont have any quotes or anything, but I remember reading a while ago that there was an issue with timing or something when running all 6 ports and the turbo? Is this at all true?

SpeedOfLife

iTrader: (16)

That's what I heard, and it came from a guy who likes to have his facts straight, and if he doesn't know it he usually knows he doesn't know it.

TweakGames

iTrader: (3)

Who is the guy?

SpeedOfLife

iTrader: (16)

forum member Syonyk, he and owns an '88 or '87 NA.

Aaron Cake

iTrader: (1)

You shouldn't even bother turbocharging the car if you are going to run 5 PSI.

But if you insist, the stock ECU, an S-AFC and 550s will be fine. Or you can use the TII ECU.

BklynRX7

^^^ If your using the stock s5 n/a ecu what would you do about timing? Just retard it at the cas? If I use the tii ecu could I just ignore the 2 different pins? Or would that cause a problem?

Aaron Cake

iTrader: (1)

For 5 PSI? Leave the timing stock.

TweakGames

iTrader: (3)

awesome I can finally get rid of the huge exhaust leak from between the motor and the turbo. (1 of the exhaust manifold bolts was either severely stripped or the exhaust housing was molding haha)