Opinions on best turbo for the money
02-05-2011, 03:57 AM
#14
i cant decide what turbo to go with for my 370ci. i am between a pt 88 or the gt 91. but im not set yet. i am looking at whats the best turbo for the money. i see lots of good threads on the pt88. hopefully someone can help push me in a good direction. thanks guys
02-06-2011, 10:48 AM
#17
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that s475 looks like it would be a decent turbo for the money. that would be a good turbo to start with and change it out later after the bugs are worked out.
02-09-2011, 08:26 AM
#19
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I'm trying to make this same decision... i can't decide whether to stay streetable with something like a PT76 or change my flange to a T6 and go for the S475 or GT88 for all out power. I have 2.5" discharge piping... is that gonna be too small for a large frame turbo like that?
Stock LQ4 for the moment with a 72mm frt mount. Circle D 258mm 2B in a 4L80E. Possibly going to a 408 LSX soon.
Stock LQ4 for the moment with a 72mm frt mount. Circle D 258mm 2B in a 4L80E. Possibly going to a 408 LSX soon.
02-09-2011, 08:42 AM
#20
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I had KB build me an adapter plate from the T-6 to the T-4 flange - it centers and raises the t-4 turbo to match the center of the down pipe.
He also built an adapter for the down pipe - one adapter goes from the T-6 5" outlet to 4" down pipe and the other adapter goes from T-4 3" outlet to 4" down pipe...
The only other thing is reducing the outlet on turbo from 3" to 2-1/2", not hard at all though.
So its pretty easy to switch from T-6 to T-4... I did this for the intention of using the TC 78 for the street, but after driving around on the GT91, I doubt I will ever put in the TC78