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Turbo or Supercharger?
What cam do you have in mind? E85 or Gasoline? Meth injection? Mileage on the shortblock? |
Originally Posted by Beatdown Z
(Post 5043716)
Turbo or Supercharger? Turbo
What cam do you have in mind? Nothing crazy really E85 or Gasoline? Gas Meth injection? Possibly Mileage on the shortblock? If your reffering to my LQ9 it has 7,000 miles on it. |
Originally Posted by kyle's v
(Post 5043506)
That's why I was thinking some stock 317 heads. I see that people boost LQ9's so with stock CR I should be in better shape.
With stock 317s and LQ9 pistons, your CR will be 10.1:1. The most you can probably safely run will be 12-13 psi, assuming: meth, no FMIC, awsome in person / dyno tune. I'd run 10psi personally and have some fun. You could always have the heads opened up a bit, but running the flattops will always be the limiting factor. |
Originally Posted by TurboBerserker
(Post 5043724)
You will need to run 317's to do any boost at all.
With stock 317s and LQ9 pistons, your CR will be 10.1:1. The most you can probably safely run will be 12-13 psi, assuming: meth, no FMIC, awsome in person / dyno tune. I'd run 10psi personally and have some fun. You could always have the heads opened up a bit, but running the flattops will always be the limiting factor. I figured 10psi would be good with stock 317's BUT that doesn't give me any room to grow down the road:cry: |
If you want more you're having the chambers opened up and/or swapping pistons... Just reality with flat tops.
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10:1 6.0 + Ported heads + FAST intake + good cam + good flowing turbo(s) + 11psi = 800rwhp...
Quiks twin turbo silverado on 11psi = 767.7rwhp - YouTube |
i would look into maybe tradin your lq9 shortblock for an lq4 shortblock, but keep your arp rod bolts. so you don't have to do the work of swapping pistons
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