317 Heads, Wiseco-3.2 CR build recommendations
07-09-2014, 09:44 AM
#1
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317 Heads, Wiseco-3.2 CR build recommendations I am removing my engine for a few upgrades, and need a few recommendations. Car has a ECS blower,small blower cam, 100% meth, LS6 intake, headers / offroad pipe & ported TB. Right now I am running 14psi on a stock bottom end. Goal is to make around 700 SAFE RWHP
I am adding a set of 317 heads, and need to cut them to find a target CR of around 9.8-1. I will be using a Wiseco -3.2 piston with a set of forged rods.
Any and all input is appreciated.
I am adding a set of 317 heads, and need to cut them to find a target CR of around 9.8-1. I will be using a Wiseco -3.2 piston with a set of forged rods.
Any and all input is appreciated.
Last edited by Mastif; 07-09-2014 at 09:50 AM.
07-09-2014, 10:14 AM
#2
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Cut heads I talked with Texas Speed this morning, and they told me to cut the 317 heads down 17-18 thousands, and that should give me a desired CR of 9.7-1.
Thoughts?
Thoughts?
07-09-2014, 04:17 PM
#4
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Ls1 engine is a 03 LS1,
Leaving the 317 heads alone would make around 9.4-1 with the wiseco -3.2 piston, which is way too low. That is why I am thinking of cutting them down 18 thou to make it right at 9.8-1.
No way to get 10.1 with the 317. if I do a 243 that would give me around 10.2-1 with the same piston. @ 9.8-1 I should be able to run a little more timing, and more boost.
And yes, this is a street car/weekend warrior.
Leaving the 317 heads alone would make around 9.4-1 with the wiseco -3.2 piston, which is way too low. That is why I am thinking of cutting them down 18 thou to make it right at 9.8-1.
No way to get 10.1 with the 317. if I do a 243 that would give me around 10.2-1 with the same piston. @ 9.8-1 I should be able to run a little more timing, and more boost.
And yes, this is a street car/weekend warrior.
07-09-2014, 06:03 PM
#5
engine is a 03 LS1,
Leaving the 317 heads alone would make around 9.4-1 with the wiseco -3.2 piston, which is way too low. That is why I am thinking of cutting them down 18 thou to make it right at 9.8-1.
No way to get 10.1 with the 317. if I do a 243 that would give me around 10.2-1 with the same piston. @ 9.8-1 I should be able to run a little more timing, and more boost.
And yes, this is a street car/weekend warrior.
Leaving the 317 heads alone would make around 9.4-1 with the wiseco -3.2 piston, which is way too low. That is why I am thinking of cutting them down 18 thou to make it right at 9.8-1.
No way to get 10.1 with the 317. if I do a 243 that would give me around 10.2-1 with the same piston. @ 9.8-1 I should be able to run a little more timing, and more boost.
And yes, this is a street car/weekend warrior.
07-10-2014, 11:55 AM
#6
