Re: Street Sleeper - GT28RS (SSAC) Is this turbo perfect?
 

with my T3 60/63 i had alot of ignition retard on my accord, and i also had sizeable exhaust leaks pre-turbo, and i was still fully boosted by about 4000rpm or so, somthing is fubar with your setup.

Re: Street Sleeper - GT28RS (SSAC) Is this turbo perfect?
 

I just re-read, your current turbo is SSAC. None of the SSAC advertised specs are correct, plus they run too much wheel to housing clearance, and they spool later than the real thing. I assure you that the real thing doesn't spool so late... a real T04E with stage three turbine and .63 AR housing made 10 psi @ 2500 rpms on Trav-ASS' original 2.0/VTEC setup, 93dohcdelsol had a couple psi at 2500 with a stock geometry 1.8 LS/VTEC on the same turbo, Steve's Y8 spooled at 3000 and had ~7 psi by 3500 and 10+ before 4000, etc. All real Garrett turbos that come as advertised, function as advertised, and last quite a while.

I see no reason why their knockoff GT28RS is any different. Sad, really. :3

PS - Retarding ignition timing at WOT and for the first couple psi boost will spool the turbo quicker.

PPS - Internal wastegate should work pretty well, the Nissan boys do it all the time. Port the exit, and enlarge it a hair, I know the 6 psi gates on the GTi-Rs will run to 15-17 psi in practice. Electronic boost controllers tend to have a problem regulating boost that high over wastegate, make sure you have a mechanical unit.

PPPS - Make sure your current internal wastegate is sealing, no binds in the movement range, and that there is plenty of spring pressure holding it shut when off boost.

Re: Street Sleeper - GT28RS (SSAC) Is this turbo perfect?
 

I suppose my external wastegate could be fucked on this setup, its also an SSAC but worked just fine on my t3 .60/.63 setup

You say the internal wastegate on that turbo will hold great|? Im gonna have to clock the turbo as a runn a passenger side downpipe and want the comprssor to shoot right into a backdoor style intercooler. Would I be able to mock up a bracket to hold it properly and maintain that boost level? Or are they finicky with position?

I can port the actualy turbo wastegate housing and still allow it to seal when off boost?

I dont know what to expect from a new setup.

I was thinking of modding a chikira header into a top mount with a nice collector and big runners, but dont know what exactly what would do for flow.

I also wanna redo my charge piping as right now I have a 2.5" for the most part, but 3" where a cold air intake would be as I just reused an old intake and welded a BOV on it, so that probably isnt helping spool time either.

Would it be safe to go down to a 2 or 2.2.5" charge pipe setup?

Re: Street Sleeper - GT28RS (SSAC) Is this turbo perfect?
 

TiAL knockoffs usually work fine. HKS knockoffs usually boost spike or are wedged open causing late spool. I'm pretty sure one of the HKS units that acted up while tuning worked fine for a while first. Which knockoff do you have?


I say that Garrett T25/T28 with the Nissan 5 bolt exit and associated flapper and actuator hold up great. You are talking cloned stuff... Joey promises nothing.


dsm.org has nice writeups on this.


I went from 2" ID non-IC charge pipe with .50/.48 T3 to 2.5" ID charge pipe with a backdoor 24X11X4" FMIC (~50% more internal volume than Precision 600 hp core) and .60/.63 T3. It took 500 rpms longer to spool on a stock LS, went from 2000 to 2500 rpms. Craptacular.

A lot of the stuff people tell you is a problem, isn't.

Re: Street Sleeper - GT28RS (SSAC) Is this turbo perfect?
 

Im using the tial 35mm knockoff

Also, about the internal wastegate, obviously SSAC overates the power the turbos are good for, will the wastegate actually hold boost til 17psi? Or will modifications need to be made to get it there?

I'll check out dsm ,org

I was thinking of going with 2.25" piping all around, as that would defientily not bottle neck anything

Re: Street Sleeper - GT28RS (SSAC) Is this turbo perfect?
 

WOW WHAT A GREAT TURBO...........i give it 2 weeks

Re: Street Sleeper - GT28RS (SSAC) Is this turbo perfect?
 

lmao..

Oh ---- maybe I shouldent be laughing because im setting a SSAC turbo soon. ----!

Re: Street Sleeper - GT28RS (SSAC) Is this turbo perfect?
 

I just love how it's got "TURBOCHARGER" printed on it. Like, maybe they wanted to be reminded what it was they were working on. Or maybe they didn't want to be confused and stack it together with rice flour...

Just like getting a car with a large lable that says, "CAR"... not very reassuring uh? :)

Re: Street Sleeper - GT28RS (SSAC) Is this turbo perfect?
 

So knobodies has sucess with this turbo then eh

Re: Street Sleeper - GT28RS (SSAC) Is this turbo perfect?
 

Get it and get pics of the piston tops from glass damage.

They're marbles I tell you!