Thoughts on running twin PT70-p trim turbos on a 408
#1
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I'm building my 408 and have a good line on some PT70s .81 A/R p-trim turbos and was wondering what everyones thoughts on them were. My basic setup is below:
-iron block 408
-Lunati crank
-Lunati pro-mod rods
-ETP 245 or AFR225 heads
-6-spd w/ 3.42 gears
-C6 manifolds flipped forward
-4.5" Procharger stood up vertical (until I max them out then a big single)
-either 67s or 70s
I realize that this is enough turbo to push me into the 8s but I'm not as concerned with the track as I am the street. However I will be pushing it hard for 9s with the 6-spd.
-iron block 408
-Lunati crank
-Lunati pro-mod rods
-ETP 245 or AFR225 heads
-6-spd w/ 3.42 gears
-C6 manifolds flipped forward
-4.5" Procharger stood up vertical (until I max them out then a big single)
-either 67s or 70s
I realize that this is enough turbo to push me into the 8s but I'm not as concerned with the track as I am the street. However I will be pushing it hard for 9s with the 6-spd.
#2
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A friend made a little over 1000 to the wheels with twin 70's at 21lb on his 408. Although, his intercooler was a big restriction, just like that procharger intercooler will be.
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.81 housings are a little lazy on the street ,I have .58 housings on a 408 its a little to quick to spool ,now trying .68 housing my new test a couple of mounths i will have results ,difernt cam in each motor that could be some of the differnce jim.