Wanting some input/advice! Thanks in advance! FI 370/TC78 setup
11-09-2011, 12:59 PM
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Wanting some input/advice! Thanks in advance! FI 370/TC78 setup Just wanted to go over my build and goals with some of you that have already perfected setup's like this! Any help or advice would be great, don't have a whole lot of money any more so hoping to do it right the first time lol. I ran 11.6's this last season on a bone stock 80k 6.0 LQ9 short block with off the shelf LS3 heads and a used LS7 cam, TC78 turbo and 10-11 lbs of boost, I'm shooting for mid to low 10's next season! Here is a part list, just trying to get some input on everything?
-Vehicle, 5000lb 4x4 silverado Regular cab short bed
-Trans, semi-built 4l80e
-Convertor, Pro Yank 3600
-Engine parts i currently have (iron 370/L92):
-Manley forged pistons
-Manley H beam rods
-stock crank machined and turned 0.010
-Coated Clevite rod and main bearings
-Coated Dura-bond cam bearings
-GMPP LS7 lifter set
-Pat g./EPS/Comp turbo grind cam (222/226 .596/.598 on a 114)
-GMPP LS6 oil pump
-Comp billet double roller chain
-Machined 01' LQ4 block
-Hand ported and polished L92 heads
-Cometic 4.030 head gaskets
-Arp main and head stud kits
-PRC dual spring kit
-Comp 7.400 push rods
-Holley high ram intake
-Stock LS2 Throttle body
-SFI flexplate
Turbo setup:
-Turbonetics TC78
-Full Race tubular turbo manifold set
-Tial 44mm WG and 50mm BOV
-Precision Water to air intercooler with 3" in and out
Anything you guys would change or something i have that you haven't had good luck with, wondering about valve springs too? What valves springs are you guys running that are making 700-900hp streetable?
-Vehicle, 5000lb 4x4 silverado Regular cab short bed
-Trans, semi-built 4l80e
-Convertor, Pro Yank 3600
-Engine parts i currently have (iron 370/L92):
-Manley forged pistons
-Manley H beam rods
-stock crank machined and turned 0.010
-Coated Clevite rod and main bearings
-Coated Dura-bond cam bearings
-GMPP LS7 lifter set
-Pat g./EPS/Comp turbo grind cam (222/226 .596/.598 on a 114)
-GMPP LS6 oil pump
-Comp billet double roller chain
-Machined 01' LQ4 block
-Hand ported and polished L92 heads
-Cometic 4.030 head gaskets
-Arp main and head stud kits
-PRC dual spring kit
-Comp 7.400 push rods
-Holley high ram intake
-Stock LS2 Throttle body
-SFI flexplate
Turbo setup:
-Turbonetics TC78
-Full Race tubular turbo manifold set
-Tial 44mm WG and 50mm BOV
-Precision Water to air intercooler with 3" in and out
Anything you guys would change or something i have that you haven't had good luck with, wondering about valve springs too? What valves springs are you guys running that are making 700-900hp streetable?
Last edited by 89LS1FOXER; 01-02-2012 at 07:16 PM.
11-09-2011, 01:13 PM
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They rate it at 1100 hp, i know thats not the case most of the time though lol, im just worried if i go to big i'll lose some streetability due to us being a mile high and our track even higher. I would think i could make 800 out of that turbo?
11-09-2011, 03:00 PM
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I didn't think id have any back pressure issues? I don't want to go to a T6 flange turbo, i know that for sure. Maybe a Forced inductions pt88 with their T4 housing? Jarrett (stock48) has tried to run a pt88 out here and had issues with it, it does fine in California though lol, he was also running a 370 for a while.
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11-12-2011, 07:37 AM
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Prc or patriot is a good choice on springs. Ive been thinking about going turbo on my 370 wanting to make around 800 850 at the track. I think the t78 pushes a little more air then the tc?? I would ask a turbo vendor to be sure.
11-15-2011, 10:51 AM
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I didn't think id have any back pressure issues? I don't want to go to a T6 flange turbo, i know that for sure. Maybe a Forced inductions pt88 with their T4 housing? Jarrett (stock48) has tried to run a pt88 out here and had issues with it, it does fine in California though lol, he was also running a 370 for a while.
11-15-2011, 12:54 PM
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With a weight of 5000lbs, 115 trap speed and a 11.6 that should put me in the 575-600 rwhp range, I know it had more left in it too! And that is through a stalled 4l80e.
