What do I need for a 140+ mph car ?
07-19-2011, 09:31 AM
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What do I need for a 140+ mph car ? So I currently have a H/C/I LS1 with 455hp and 413tq. Fun car but I already want more power. ( see sig for more details )
When my current setup blows, I want a new setup that will do 140+ mph in the 1/4 mile. I want it to be street friendly and blow cold AC.
I know I will need a forged motor but not sure on cubic inches and whether to go with a nice blower or turbo setup. At those power levels, which one requires less maintenance and is more reliable ? Will an aluminum block be ok or is iron a must for that much power ?
Price is no issue.
When my current setup blows, I want a new setup that will do 140+ mph in the 1/4 mile. I want it to be street friendly and blow cold AC.
I know I will need a forged motor but not sure on cubic inches and whether to go with a nice blower or turbo setup. At those power levels, which one requires less maintenance and is more reliable ? Will an aluminum block be ok or is iron a must for that much power ?
Price is no issue.
07-19-2011, 10:22 AM
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Wow that's pretty good on a D1. What kind of power were you making on that setup and how long did it last ?
Yes, I just got the H/C/I setup done a few weeks ago. I'm thinking towards the near future.
07-19-2011, 10:38 AM
#5
When it was still a m6 with stock heads and ls6 intake I made 676rwhp on 12psi with the D1 never dynoed it with the TH400. That set up lasted until I destroyed the D1 when I sucked a rubber coupler thhough the impeller
MikeP2002 is in near 800rwhp on his D1 Procharged 383
And yelofevr on here is making 670ish in his stock bottum end ls1 with a little p1
MikeP2002 is in near 800rwhp on his D1 Procharged 383
And yelofevr on here is making 670ish in his stock bottum end ls1 with a little p1
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07-19-2011, 11:14 PM
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650-750rwhp should get you there.
A turbo, IMO, is more fun and is just as reliable as supercharger if you do your due diligence.
A forged 370ci, for example, won't "require" a large turbo such as a S85 (hehehe!!) so you won't need to worry about running a large DP, crossover, WG, etc.
Just worry about the supporting parts that will keep it all together, spend the money the right way the first time and you should be just fine.
Unfortunately, turbo kits come and go around here but Kentucky Turbo seems to have it working just fine. If you want a larger bottom end they can also accomidate for a larger turbo.
GL!
A turbo, IMO, is more fun and is just as reliable as supercharger if you do your due diligence.
A forged 370ci, for example, won't "require" a large turbo such as a S85 (hehehe!!) so you won't need to worry about running a large DP, crossover, WG, etc.
Just worry about the supporting parts that will keep it all together, spend the money the right way the first time and you should be just fine.
Unfortunately, turbo kits come and go around here but Kentucky Turbo seems to have it working just fine. If you want a larger bottom end they can also accomidate for a larger turbo.
GL!
07-20-2011, 10:56 AM
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I will look into everyone's suggestions. This is going to be a huge learning experience for me.
I'm thinking an aluminum forged LS2 short block.
http://leperformance.com/lep370ls2forgedshotblock.aspx
with my TFS 215 heads, FASt 92/92 and some boost.
Procharger or turbo setup in the 700rwhp range. I'm thinking my best bet would be to get a ride in a turbo LS motor and a procharged LS motor car to determine which setup I like more.
I'm thinking an aluminum forged LS2 short block.
http://leperformance.com/lep370ls2forgedshotblock.aspx
with my TFS 215 heads, FASt 92/92 and some boost.
Procharger or turbo setup in the 700rwhp range. I'm thinking my best bet would be to get a ride in a turbo LS motor and a procharged LS motor car to determine which setup I like more.
07-20-2011, 11:56 AM
#13
I am wanting to do a forged LS2 as well. Somewhere between 364-385ci. I am thinking AES will build it I just have to research more etc. I don't plan to make more then 800rwhp MAX on race gas and I want to keep the car's weight down as well. The goal is also similar to yours as I want 145+ mph in the 1/4.
07-20-2011, 01:02 PM
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heres my setup...
https://ls1tech.com/forums/dynamomet...urbo-dyno.html
https://ls1tech.com/forums/dynamomet...urbo-dyno.html
07-20-2011, 01:30 PM
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Why are you so bent on getting a built engine? Pick up a stock LQ4 (6.0) iron block, or a 5.3 and yes even the little 4.8... People are running 10's, 9's, and cars have dipped deep into the 8's with a JUNKYARD 6.0. Skinnies ran 154mph in his Rx7.
Spend the money you "saved" on the turbo/fuel/safety systems. By the time you nuke a stock block or two, you might know what you're doing and should step up to a built engine... I sure as hell wouldn't want to "learn" on a 4K+ short block.
Spend the money you "saved" on the turbo/fuel/safety systems. By the time you nuke a stock block or two, you might know what you're doing and should step up to a built engine... I sure as hell wouldn't want to "learn" on a 4K+ short block.
07-20-2011, 03:10 PM
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650-750rwhp should get you there.
A turbo, IMO, is more fun and is just as reliable as supercharger if you do your due diligence.
A forged 370ci, for example, won't "require" a large turbo such as a S85 (hehehe!!) so you won't need to worry about running a large DP, crossover, WG, etc.
Just worry about the supporting parts that will keep it all together, spend the money the right way the first time and you should be just fine.
Unfortunately, turbo kits come and go around here but Kentucky Turbo seems to have it working just fine. If you want a larger bottom end they can also accomidate for a larger turbo.
GL!
A turbo, IMO, is more fun and is just as reliable as supercharger if you do your due diligence.
A forged 370ci, for example, won't "require" a large turbo such as a S85 (hehehe!!) so you won't need to worry about running a large DP, crossover, WG, etc.
Just worry about the supporting parts that will keep it all together, spend the money the right way the first time and you should be just fine.
Unfortunately, turbo kits come and go around here but Kentucky Turbo seems to have it working just fine. If you want a larger bottom end they can also accomidate for a larger turbo.
GL!
07-20-2011, 03:42 PM
#20
When it was still a m6 with stock heads and ls6 intake I made 676rwhp on 12psi with the D1 never dynoed it with the TH400. That set up lasted until I destroyed the D1 when I sucked a rubber coupler thhough the impeller
MikeP2002 is in near 800rwhp on his D1 Procharged 383
And yelofevr on here is making 670ish in his stock bottum end ls1 with a little p1
MikeP2002 is in near 800rwhp on his D1 Procharged 383
And yelofevr on here is making 670ish in his stock bottum end ls1 with a little p1