LQ402/8 with ls3 heads- Compression Ratios
LQ402/8 with ls3 heads- Compression Ratios people that are running LQ402/8 with ls3 heads...
can you please post your Compression specs
1-heads are milled to?? (if not stock 70cc)
2-thickness of head gasket??
3-type of piston??
4-Compression Ratio??
just want a general idea
can you please post your Compression specs
1-heads are milled to?? (if not stock 70cc)
2-thickness of head gasket??
3-type of piston??
4-Compression Ratio??
just want a general idea
Yes I live in Las Vegas where it's hot as hell and I run 91 octane. 435hp and 400ftlbs through a 4L80e in a truck. The tune was complete **** so I need to head back to the dyno soon. I bought HP tuners cause I thought the tune was way off, and man I was right. Hoping to get at least another 30hp out of it. I used all stock components in my build with a 231/239 cam as a starting point.
I have close to what oakley has.
Stock chambers (70 cc)
Wiseco Ls3 -3cc pistons
0.040 head gasket
11.45:1
There are guys who have been running 12:1 on pump with no issues. Just have to have a good tune.
Stock chambers (70 cc)
Wiseco Ls3 -3cc pistons
0.040 head gasket
11.45:1
There are guys who have been running 12:1 on pump with no issues. Just have to have a good tune.
I just did the calculations, my motor will be done shortly and put in the car.
I asked Geoff@EPS(used to be part owner of Thunder Racing) to give me a guesstimate since he spec'd the cam and will be doing the tuning and he estimated 520-540 rwhp thru a TH350.
I asked Geoff@EPS(used to be part owner of Thunder Racing) to give me a guesstimate since he spec'd the cam and will be doing the tuning and he estimated 520-540 rwhp thru a TH350.
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thats right where i want to be power wise, what motor? 408ci
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Joined: Apr 2019
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Yes I live in Las Vegas where it's hot as hell and I run 91 octane. 435hp and 400ftlbs through a 4L80e in a truck. The tune was complete **** so I need to head back to the dyno soon. I bought HP tuners cause I thought the tune was way off, and man I was right. Hoping to get at least another 30hp out of it. I used all stock components in my build with a 231/239 cam as a starting point.
