if you havent seen a 91mm T-4 turbo (trick or treat)
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Joined: Nov 2003
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From: Norn Iron
Some of my intake valves ended up like upside down umbrellas....
Although I did blow the crap out of my engine at that time too...so I guess the cylinder temps were rather high
Seat pressure combined with extreme cylinder temps I guess can only do one thing. Perhaps if its a material issue that cant be helped, ceramic coating the face of the intake valve may help stop heat transfer into the valve ?
Thread Starter
Joined: Nov 2001
Posts: 10,018
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From: Virginia
this is on a 370CI engine? i wonder how this thing would be on a 6 speed with 9.6:1 compression.
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figures I just spent 1500 on a new PT88...hey Jose will you do a trade in + some cash? Its kinda crazy to send in a brand new never used turb to upgrade and spend 700$ when its really only 100$ more expensive than a new one.
i have been looking at making my 408lsx a 427lsx. would this 91mm t4 be the trick? i have a 88mm mid-fra. now and i am looing at making 1000rwhp, but i have been told that it cant be done with the 88mm???? it made 821 at 18psi on stock 317s, and i just got some new trickflow 235, do you think i can make 1000rwhp on the 408 with the 88mm? or go the the 91. orrr. do i have to go to a t-6?
BTW- its in a 5700lbs denali
BTW- its in a 5700lbs denali
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i have been looking at making my 408lsx a 427lsx. would this 91mm t4 be the trick? i have a 88mm mid-fra. now and i am looing at making 1000rwhp, but i have been told that it cant be done with the 88mm???? it made 821 at 18psi on stock 317s, and i just got some new trickflow 235, do you think i can make 1000rwhp on the 408 with the 88mm? or go the the 91. orrr. do i have to go to a t-6?
BTW- its in a 5700lbs denali
BTW- its in a 5700lbs denali
It can be done. 1012rwhp we did with a customers LT1. Problem is the turbo is done and doesn't hold up as you start to over spin that unit at that point. Also that was on a 355. As the motor ci's go up the power will go down and back pressure will go through the roof.
