Garrett Turbo for 2.0

jowek70 · Posted: Thu Aug 28, 2008 9:05 am Post subject:

oh and should i get a 160 or 180 degree thermostat?
i've read that this will make the engine run alil cooler preventing detonation.....

slowolej · Posted: Mon Sep 01, 2008 5:19 am Post subject:

You really want the engine to be as hot as possible with intake air nice and cool. You don't usually switch to a cooler T-stat unless you're really generating large amounts of cylinder pressure. But if you're still planning on using the stock n/a ecm you're going to have far too much spark advance. Combine that with the higher compression ratio of the n/a engine and you've given detonation a reason to party. The cool 'stat might save your engine.

But where are you finding a 160 T-stat?

Oh, and have you given any thought to how you'll be datalogging? Hate to see that thing blow up without you having any idea the end is coming.

jowek70 · Posted: Mon Sep 01, 2008 6:26 am Post subject:

i haven't seen a 160 degree stat i was just reading about it on another forum......i forget where i just yahoo searched sunbird turbo i think.....but i haven't thought about datalogging....i was just gonna put all the parts on and drive it.....with appropriate gauges......AFR, boost and oil pressure....i figured i'd be safe......but you have me kinda worried now!

jowek70 · Posted: Tue Sep 02, 2008 3:15 pm Post subject:

i've read online that the stock wastegate on 88 gt's was 8 or 9 psi.....i only wanna run 6 psi....but i've heard runnin an 8 or 9 psi wasteagte will be more beneficial because of boost creep on the T25....anybody know if this is true? i plan on gettin a new 6 psi or keepin my stocker....

cavi_rs_94 · Posted: Tue Sep 02, 2008 5:30 pm Post subject:

yes it will be more benificial running the 89 psi one over the 6 psi.

jowek70 · Posted: Tue Sep 02, 2008 6:19 pm Post subject:

alright
i'll look into that one then
they're about the same price
but would there be a difference in brackets?

jowek70 · Posted: Sat Sep 06, 2008 8:02 am Post subject:

has anybody heard or dealt with Mishimoto intercoolers?
and what are your guys' thoughts on a black intercooler and piping?

slowolej · Posted: Sat Sep 06, 2008 9:28 am Post subject:

cavi_rs_94 · Posted: Sat Sep 06, 2008 9:34 am Post subject:

jowek70 · Posted: Sun Sep 07, 2008 12:04 pm Post subject:

well i just found they made black pipes/IC
so i thought i'd ask
the black IC looks sexy IMO
but youre prolly right about the pipes though

jowek70 · Posted: Mon Sep 08, 2008 4:00 pm Post subject:

oh and a quick question on the exhaust
i'm gonna buy a downpipe with the T25 bolt pattern but its got a 3" diameter on it......would this be too big? i was thinking that since it just comes 3 " then i might as well go 3" the entire exhaust.....
but my other question.....i found a place online where i can get 5 ft. sections of SS pipe and any degree bends i need.....does it matter if get 304 or 409? and this will all be welded together so will there be a difference if i go 304 and 409? or should i go all 304 or all 409?

decyphex · Posted: Tue Sep 09, 2008 2:44 am Post subject:

slowolej · Posted: Tue Sep 09, 2008 5:54 am Post subject:

I've got stock pipe to a stock cat then 2.5" back to a Magnaflow muffler on my turbo car. Works well.

cavi_rs_94 · Posted: Tue Sep 09, 2008 8:44 am Post subject:

409 is an alloy designed principally for the automotive exhaust industry, although it has been used successfully in other industrial applications. It combines good elevated temperature corrosion resistance with medium strength, good formability

the Stainless 304, One of the most widely used and oldest of the stainless steels. This was originally called 18-8 which stood for its chromium and nickel content. It possesses an excellent combination of strength, corrosion resistance and fabricability.

The 304 and 409 flow exactly the same, but, the 304 will outlast your car in any enviromental conditions (road salt)....where as the 409 will last about 10 years and will rot out, the 409 is more for ppl that have stored cars that dont drive in winter or fall or wet days. IMO id say go with the 304, the metal composition in it is 100x better

jowek70 · Posted: Tue Sep 09, 2008 9:27 am Post subject:

alright i was just wondering cause there's like a $10 difference for 5 ft lenghts.....
and for the 3" exhaust....the only reason i'd go that is because the downpipe i found for T25 is 3" but i could throw a reducer in....then go 2.5" the from the downpipe.....
oh and i dont drive my car in the winter.....but it does get rain during the late spring, summer and early fall.....
maybe i'll go 409...we'll see i guess

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