5.3 2007 silverado turbo project
#1
5.3 2007 silverado turbo project
hey guyz
well i have 2007 chevy silverado
so what do u think of installing lsx block low C.R but the problem is i have a 225 EThead with 58 chamber it will raise my C.R to somewhere around 11 and thats alot for my turbo setup !!! so what do u think guys i want to go around 15 boost !! a garage told me u should order a pistons with 8 C.R so that u match between the block and the heads!!!!
so guyz what do u think !! i dont wanna get rid from my ETheads!!
well i have 2007 chevy silverado
so what do u think of installing lsx block low C.R but the problem is i have a 225 EThead with 58 chamber it will raise my C.R to somewhere around 11 and thats alot for my turbo setup !!! so what do u think guys i want to go around 15 boost !! a garage told me u should order a pistons with 8 C.R so that u match between the block and the heads!!!!
so guyz what do u think !! i dont wanna get rid from my ETheads!!
#2
TECH Veteran
hey guyz
well i have 2007 chevy silverado
so what do u think of installing lsx block low C.R but the problem is i have a 225 EThead with 58 chamber it will raise my C.R to somewhere around 11 and thats alot for my turbo setup !!! so what do u think guys i want to go around 15 boost !! a garage told me u should order a pistons with 8 C.R so that u match between the block and the heads!!!!
so guyz what do u think !! i dont wanna get rid from my ETheads!!
well i have 2007 chevy silverado
so what do u think of installing lsx block low C.R but the problem is i have a 225 EThead with 58 chamber it will raise my C.R to somewhere around 11 and thats alot for my turbo setup !!! so what do u think guys i want to go around 15 boost !! a garage told me u should order a pistons with 8 C.R so that u match between the block and the heads!!!!
so guyz what do u think !! i dont wanna get rid from my ETheads!!
#4
TECH Junkie
There are a bunch of dished pistons that will work. Even custom, keep the heads.
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#7
nope its aint right we do pay as foriegners.
and we do have 98 octane so no worries about the fuel .
and sorry for my bad english guys but im doing my best .
ok now sorry what about 22 boost something like that would the 9:1 C.R will be good ??
and we do have 98 octane so no worries about the fuel .
and sorry for my bad english guys but im doing my best .
ok now sorry what about 22 boost something like that would the 9:1 C.R will be good ??
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#8
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With the 98 octane it might be ok. Anything above the 15 psi range gets risky on a LSx engine. Lifting the heads is the biggest worry. The thick deck of the ETP's will help with that but the high flowing head will cause your ideas with boost numbers to be skewed from a stock set of heads. Boost is a restriction in the intake manifold and intake runner across the valve. The less restriction you have the more air gets into the cyl. The more air in the cyl, the higher the cyl pressure regardless of manifold pressure.
What i'm saying is, don't get hung up on a boost number all the time. In order to get the same amount of air in the cyl with a stock head vs an ETP or such your boost levels will be different. For example: it may take 15 psi manifold pressure with a stock head to get the same amount of air as a ported or ETP head at 10psi. Turbo is pumping roughly the same amount of air.
What i'm saying is, don't get hung up on a boost number all the time. In order to get the same amount of air in the cyl with a stock head vs an ETP or such your boost levels will be different. For example: it may take 15 psi manifold pressure with a stock head to get the same amount of air as a ported or ETP head at 10psi. Turbo is pumping roughly the same amount of air.
#9
With the 98 octane it might be ok. Anything above the 15 psi range gets risky on a LSx engine. Lifting the heads is the biggest worry. The thick deck of the ETP's will help with that but the high flowing head will cause your ideas with boost numbers to be skewed from a stock set of heads. Boost is a restriction in the intake manifold and intake runner across the valve. The less restriction you have the more air gets into the cyl. The more air in the cyl, the higher the cyl pressure regardless of manifold pressure.
What i'm saying is, don't get hung up on a boost number all the time. In order to get the same amount of air in the cyl with a stock head vs an ETP or such your boost levels will be different. For example: it may take 15 psi manifold pressure with a stock head to get the same amount of air as a ported or ETP head at 10psi. Turbo is pumping roughly the same amount of air.
What i'm saying is, don't get hung up on a boost number all the time. In order to get the same amount of air in the cyl with a stock head vs an ETP or such your boost levels will be different. For example: it may take 15 psi manifold pressure with a stock head to get the same amount of air as a ported or ETP head at 10psi. Turbo is pumping roughly the same amount of air.
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