s475 or mp t76
05-21-2012, 08:02 PM
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Car: 1991 camaro rs
Engine: twin turbo 406
Transmission: th400 w/brake 4400 stall
Axle/Gears: 3.42s
s475 or mp t76
like the title says im trying to decide on one. i am going with powerjection 3 and will upgrade to 75 to 80lb injectors after i get a new bottom end, but for now im only planning on 6 to 8 psi pump gas.
have a few questions
1) do i need an intercooler? compression is right at 9.4:1 with vortec heads( yes i know... iron heads)
2) will a 38mm wastegate let that much air past for me to run the s475 that low?
this is set in stone, i ordered a walbro 255 and turbo xs bov. and will be ordering powerjection 3 next week, unless i find a good deal on a turbo first.
will i reach 550 or so with this low of boost and will it be pump gas friendly?
cam is lunati 60103
227/233 @.50
4.95/5.10 with 1.52s
110 sep
have a few questions
1) do i need an intercooler? compression is right at 9.4:1 with vortec heads( yes i know... iron heads)
2) will a 38mm wastegate let that much air past for me to run the s475 that low?
this is set in stone, i ordered a walbro 255 and turbo xs bov. and will be ordering powerjection 3 next week, unless i find a good deal on a turbo first.
will i reach 550 or so with this low of boost and will it be pump gas friendly?
cam is lunati 60103
227/233 @.50
4.95/5.10 with 1.52s
110 sep
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