turbo upgrade question long kevin? - Saab Performance Bulletin Board - Saabnet.com
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I have a 85 spg which I have done a few low budget mods too.
my o2 sensor is at .92v wot at 17 & has been there @ i9 lbs boost due to a 3bar fp reg
I am going to do copy G6 mods to my apc which the f pot is all the way up on rite now & the p about 1/4 turn.base boost at 8 lbs
my problen is that the T3 is making too much heat & above 50 degrees the apc keeps boost at about 15 & is about 12 at 5500 & flutters till about 4200 rpm rpm because of detonation. in colder weather boost is much higher I know when I change the resisters & caps in the apc that high rpm boost will be better but at higher boost levels the turbo is being pushed beyond its efiency & making too much heat
will a t3/4 setup make less heat & keep down detonation? & or do I need to deal with the I/C & where can I but just the T4 compressor wheel & housing?to keep mod cost down.
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