stock 4.8l with turbo est. hp
06-18-2008, 07:40 PM
#1
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stock 4.8l with turbo est. hp How much power do you think that i could make
stock 4.8 long block
arp rod bolts
carbed intake
csu blow thru
70mm bw turbo t6 flange biggest a/r
1 5/8 headers jba stock replacement
stock 4.8 long block
arp rod bolts
carbed intake
csu blow thru
70mm bw turbo t6 flange biggest a/r
1 5/8 headers jba stock replacement
06-19-2008, 01:36 PM
#3
Stock longblock...
Well the LS1 can only do about 550rwhp on the stock shortblock, so i wanna say you could make 450rwhp. But i do not know anything about the 4.8, or the 5.3 blocks.
Well the LS1 can only do about 550rwhp on the stock shortblock, so i wanna say you could make 450rwhp. But i do not know anything about the 4.8, or the 5.3 blocks.
06-20-2008, 12:18 PM
#5
I've made just over 500rwhp with my 4.8 and 11psi of boost with both a sts rear mount and my current front mount. Your never gona get any kind of spool out of that turbo setup though, especially if your gonna make it a rear mount. That's WAY to big of and exhaust housing. You need SMALL exhaust housing with a 4.8, you don't have the CI to spool it. I run a 70mm, T4 flange turbo with a .68 A/R and P trim turbine. This combo spools quite nice and will brake stall as much boost as you want it to 
Oh and if your going with a rear mount don't waste your money on the headers, and wrap the exhaust pipe all the way back to the turbo with header warp. Been there, done this
Oh and if your going with a rear mount don't waste your money on the headers, and wrap the exhaust pipe all the way back to the turbo with header warp. Been there, done this
06-20-2008, 05:31 PM
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I've made just over 500rwhp with my 4.8 and 11psi of boost with both a sts rear mount and my current front mount. Your never gona get any kind of spool out of that turbo setup though, especially if your gonna make it a rear mount. That's WAY to big of and exhaust housing. You need SMALL exhaust housing with a 4.8, you don't have the CI to spool it. I run a 70mm, T4 flange turbo with a .68 A/R and P trim turbine. This combo spools quite nice and will brake stall as much boost as you want it to
Oh and if your going with a rear mount don't waste your money on the headers, and wrap the exhaust pipe all the way back to the turbo with header warp. Been there, done this
Oh and if your going with a rear mount don't waste your money on the headers, and wrap the exhaust pipe all the way back to the turbo with header warp. Been there, done this
local series only allow 70mm need to make 750 to 800 wrhp
limit turbo size so small cu
I am just going to start out with stock 4.8
I have a built 6.0l block with all the tricks want try small cu 4.8 then i will put 3.0 in stroke in the 6.0l if it works
Just wanted to see what kind of power has been made with 4.8l
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06-20-2008, 09:38 PM
#8
Most RWHP I've heard of out of a STOCK 4.8 is about 550 I don't think it's physically possible to make 750-800 rwhp out of 70mm turbo, I think you need to study up a little on how turbo work and what kind of Airflow you get and what range you have to operate it in to keep it in it's efficiancy range, but good luck!!
06-21-2008, 05:49 PM
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Most RWHP I've heard of out of a STOCK 4.8 is about 550 I don't think it's physically possible to make 750-800 rwhp out of 70mm turbo, I think you need to study up a little on how turbo work and what kind of Airflow you get and what range you have to operate it in to keep it in it's efficiancy range, but good luck!!
destroying turbo on number 4 for the year but it is fast
not trying to set the world on fire
just trying to get started and see what kind of power can be made
b/w told me that the turbo could flow enough to make 960hp flywheel
06-22-2008, 02:43 PM
#11
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ask mike fretenna how he is doing it 3400 lbs 9.14 at 155mph with 70mm and 360 cu in
destroying turbo on number 4 for the year but it is fast
not trying to set the world on fire
just trying to get started and see what kind of power can be made
b/w told me that the turbo could flow enough to make 960hp flywheel
destroying turbo on number 4 for the year but it is fast
not trying to set the world on fire
just trying to get started and see what kind of power can be made
b/w told me that the turbo could flow enough to make 960hp flywheel
