HCI Ls1 TA vs Big cam Lt1 Formula
02-21-2013, 01:57 PM
#21
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02-21-2013, 03:47 PM
#24
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02-21-2013, 06:03 PM
#26
. Seriously, they flow like 210cfm on the intake. Even with basic porting they barely catch up to bone stock LS heads. Its where most LT1 owners go wrong with their builds, and the single reason why they lag so far behind an LS mod for mod.In this case though, it will take a lot of planning for a stock cube LT1 to hang with an "11.doh" car on motor. It's possible of course, but it wont be done by just buying parts here and there by someone who is modding their first LT1. He's gonna need lots of suspension, 3.73+ gearing, 3600+ stall, and then GOOD heads with matching custom cam. Having Joe Blow from the repair shop down the street port his stockers and stabbing a bottom of the page shelf grind won't do it.
He CAN just take the ez way out though, and just ship his heads off to LE for a cheap LE2 port job and throw some nitrous at it. That'll have you handled until you decide to spray or boost
.
02-21-2013, 07:01 PM
#27
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And I won't claim to know anything about his car. His particular car may need more than heads to compete, but a truly SOLID heads/cam LT1 would give you all you could handle and then some. Even though the LT1 aftermarket has been less than impressive over the past 10 years, there are still plenty of options that can and will put a stock cube or nearly stock cube auto LT1 at or above your power level. 
02-22-2013, 07:57 AM
#29
The power isn't what we should be looking at, as OP mentioned, he ran bottom 11's consistantly. Typically, you see well thought out LT1 cars with Heads/Cam/Intake run into the mid 11's.
The LT1 would need some serious upgrades in the stall, gear, suspension, and weight reduction areas to help catch it up but it is plausible.
The LT1 would need some serious upgrades in the stall, gear, suspension, and weight reduction areas to help catch it up but it is plausible.
02-23-2013, 05:36 AM
#33
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02-23-2013, 03:37 PM
#34
I'm not downing your car by any means. It looks and apparently performs AMAZING. I love that color! And I won't claim to know anything about his car. His particular car may need more than heads to compete, but a truly SOLID heads/cam LT1 would give you all you could handle and then some. Even though the LT1 aftermarket has been less than impressive over the past 10 years, there are still plenty of options that can and will put a stock cube or nearly stock cube auto LT1 at or above your power level.
And I won't claim to know anything about his car. His particular car may need more than heads to compete, but a truly SOLID heads/cam LT1 would give you all you could handle and then some. Even though the LT1 aftermarket has been less than impressive over the past 10 years, there are still plenty of options that can and will put a stock cube or nearly stock cube auto LT1 at or above your power level.There are but a very few stock displacement LT1 cars that are running his times. Please let us in on your secret as the rest of the LT1 world needs 383" to compete...
02-23-2013, 04:12 PM
#35
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Just because "most" LT1 builds don't yield the results we're talking about here doesn't make it hard. It's that people don't put the combo together right or they don't maximize it's potential. There is no secret to obtaining those power levels, and it doesn't come down to just power, it's transmission and suspension setups that shave off a lot of time too.
If you honestly think it takes a 383 stroker LT1 to run low 11's you're an idiot! And I'm sure plenty of people will agree with me.
You are always the first one to call BS on anything LT1.
02-23-2013, 04:47 PM
#36
Still sore after getting embarassed on another forum? Or perhaps it's because you wheezed your way into the low 12s after boasting about your 10 second build?
Enlighten us.
What does YOUR car run?
I would also love to hear how you got 353" from an LT1 block...
Enlighten us.
What does YOUR car run?
I would also love to hear how you got 353" from an LT1 block...
Last edited by Marc 85Z28; 02-23-2013 at 04:57 PM.
02-23-2013, 07:01 PM
#37
353 is just a .020" over bore on a stock block. Not sure why it would be chosen over a 355 with a much easier to find 30 over piston.
02-24-2013, 12:32 AM
#40
Staging Lane
Agreed. The LT1 engine is miles behind the LS engine, it's simply a SBC with reverse coolant flow and a crappy intake manifold setup. You LT1 guys are saying that a LT1 can hang with a LSx engine mod for mod? Seriously?