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What would it take to get my car in the 10's? I already have a rebuilt 4L80e (no trans brake). I want to keep the .323 (or close) gears for highway driving. I was thinking 9" rear with .325 gears could be in the future. I'm not sure I want to cut up my car to make an inner cooler and turbo (or Pro-charger) fit. I'm thinking about building an LS3-based stroker engine instead. I'm just not sure an N/A motor would have enough power to get my car into the 10s. It barely runs 12's with heads, cam, intake, exhaust, and a stall. I might have the slowest Gen-4 ever made. So, I want to change that. Is it realistic to think that a 416 CID or bigger stroker with an LS3 top end can make my car run the 1/4 mile under 11 sec? How much hp does it take to run 10s?
Even with all that, the LS1 won't make enough power to run 10s. I was going to attempt this with a big cube LS3 based engine. I just want to know if it's possible before I spend that much money on an engine.
A well planned out 5.7 is very capable of running into the 10s. it's not just the motor part you will need to look at. the 60' is where you will really need it to shine all motor. that 4l80e isn't going to do you any favors off the line with a 2.482 first gear vs a 4l60e 3.059 1st gear.
im not sure how DA in NC vs San Antonio varies but its pretty easy to get a ls1 car into the low 7s 1/8 mile here.
the 60' is where you will really need it to shine all motor. that 4l80e isn't going to do you any favors off the line with a 2.482 first gear vs a 4l60e 3.059 1st gear.
im not sure how DA in NC vs San Antonio varies but its pretty easy to get a ls1 car into the low 7s 1/8 mile here.
Yeah, my 60' sucks too. My best 60' was a 1.9 sec in Richmond, VA. Here in San Antonio it's been about 2.2 - 2.5 sec. Cars do seem to be faster up north. My suspension probably needs work, too.
I would love to have a 6L80e. That would be ideal. I read about a company that has a PCM/TCM and wire harness that will control the 6L80e. I might have to look into that. The other issue would be with the cross-member. I don't know if BMR make one for the 6L80 in my car.
Something else to consider is weight reduction. Think about what you don't need and get rid of it.
I took the tools and spare tire out for one pass one time. It didn't change my times at all. That's all that I would remove from the car. I did notice that my car is faster with a full tank of gas than it is with a 1/4 tank. I think the extra weight helps with traction.
One of my buddy's car 4th gen Z28 with LS1, 230-236, 110 LSA, some of my ported 243s milled .020, Fast 102 intake with 102tb, 4l60, 3600 stall, 4.10s in built 10 bolt, modded suspension.bogarts, full weight, bad *** tune by himself in South Texas went 10.80s at 123. It's all in the whole combo and tune. Attached are pics of car, time slip, and some 799s with same port job I have for sale locally.
I'm probably going to build a 418 CID LS3 based engine. I picked up an L92 for cheap. It had one bad head (cracked), so I will need another. I already have the LS3 intake and 92mm throttle body. 10's or not, I'll just have to live with what it makes. I did swap out the 4L80 for a 6L80 earlier this year. It has about a 3600 stall converter. There are no tracks open around here anymore, but my butt dyno says it's much quicker. lol.
04-26-2023, 06:26 PM
10's or bust (2000 SS) 
