ET guesses? Gbody regal MS3 cam LS1 th400 4K stall 4.10 gear
06-07-2016, 01:10 PM
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ET guesses? Gbody regal MS3 cam LS1 th400 4K stall 4.10 gear I just picked up this Regal recently and before doing any performance modifications to it I want to take it to the track for a baseline..
1981 regal with cage and full stock suspension, manual steering - weight est. 3400 pounds
LS1 (5.7 aluminum block)
stock unported 5.3 heads (added compression)
MS3 camshaft 238/242 .605/.610 on 111 LSA
mid length headers - dual 3" exhaust - bullets and dumped
LS6 intake and TB
timing curve in the tune looks strong 28 degrees (haven't adj anything)
Stock TH400 trans with TCI 4K stall converter
7.5" 10 bolt with spool and 4.10 gears
16x10 CCW w/ 26x11.5x16 MT ET street Bias plys
it feels slow on the street to me but I haven't ran anything with it so I don't have anything to compare it with. I am hoping for mid 12"s as it sits. future plans: Have a full nitrous kit for the car (plan on 200 shot through a shark nozzle) would like to get a spec'd converter for it next season and will switch to a 3.73 gear at the same time.
1981 regal with cage and full stock suspension, manual steering - weight est. 3400 pounds
LS1 (5.7 aluminum block)
stock unported 5.3 heads (added compression)
MS3 camshaft 238/242 .605/.610 on 111 LSA
mid length headers - dual 3" exhaust - bullets and dumped
LS6 intake and TB
timing curve in the tune looks strong 28 degrees (haven't adj anything)
Stock TH400 trans with TCI 4K stall converter
7.5" 10 bolt with spool and 4.10 gears
16x10 CCW w/ 26x11.5x16 MT ET street Bias plys
it feels slow on the street to me but I haven't ran anything with it so I don't have anything to compare it with. I am hoping for mid 12"s as it sits. future plans: Have a full nitrous kit for the car (plan on 200 shot through a shark nozzle) would like to get a spec'd converter for it next season and will switch to a 3.73 gear at the same time.
06-25-2016, 12:26 AM
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Took the buick to our local track today. DA per a calculator online shows around 3200. How do you guys accurately get this #?
Anyways the buick ran a 12.4 at 110 mph - best pass of the night.
Car had some major trans issues. I was manually shifting it about 6k and it was so slow to shift it woukd still hit the rpm limiter at 6800. Shifting into third took forever and once it was in gear it slipped REAL bad. Overall im happy with it, I expected the car to run in the 13"s I have Alot of plans for it so I really wanted to get a baseline as it sits how I bought it and I'm glad I did.
Here's a video of one of my passes, can def hear some trans issues.
https://youtu.be/_D7XY2-kUZ8
Anyways the buick ran a 12.4 at 110 mph - best pass of the night.
Car had some major trans issues. I was manually shifting it about 6k and it was so slow to shift it woukd still hit the rpm limiter at 6800. Shifting into third took forever and once it was in gear it slipped REAL bad. Overall im happy with it, I expected the car to run in the 13"s I have Alot of plans for it so I really wanted to get a baseline as it sits how I bought it and I'm glad I did.
Here's a video of one of my passes, can def hear some trans issues.
https://youtu.be/_D7XY2-kUZ8
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06-28-2016, 11:30 AM
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The heads definitely need to be replaced with something that flows better, I have some yates racing ported 799 here at the house for the car. I'm shifting before 6800 RPM and don't plan on running it much higher than that.
forgot to mention the car weighed 3150 without me and I weigh 200 pounds.
06-28-2016, 08:17 PM
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I'm liking the low weight, what all did you remove to get it there? pics?
That launch in this vid, that cant be a 1.8, is it? If it hooked better I think you'd be in the 11's like everybody else was saying.
That launch in this vid, that cant be a 1.8, is it? If it hooked better I think you'd be in the 11's like everybody else was saying.
06-28-2016, 08:54 PM
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The build is all jacked up too much cam . 1.8 60ft is terrible my stock 6.0l is a 1.8. With that cam u need a 4k plus converter then the 7.5 rear won't stand a chance. Get a good converter then a 9" rear with at least 390 gear
06-29-2016, 06:59 AM
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The car hooked great, no spin at all but it just didn't feel like it came out of the hole strong.
I didn't build it - I bought it.. this is just a baseline number. I plan on getting a custom spec'd converter for the car & already have a built 8.8 rear with 31 spline axles and 3.73
06-30-2016, 07:07 AM
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while I agree 110 mph is not going to get me into the 11's... I'm not sure if you read or saw the video of the trans lazily shifting into 2nd and slipping all of 3rd gear, surely fixing that issue will gain me some mph on the big end.
06-30-2016, 10:40 PM
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Pretty sure you can, that's kinda what I ran the last time out. But honestly my laptop was busted and I couldn't put timing back in, I should be running 115mph.
If he can get his mid 1.8 60's to 1.6 or better that should drop his 12.4 to a high 11, agreed? But I bet he'd also pick up a couple mph at the same time.
If he can get his mid 1.8 60's to 1.6 or better that should drop his 12.4 to a high 11, agreed? But I bet he'd also pick up a couple mph at the same time.
07-01-2016, 08:17 AM
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Pretty sure you can, that's kinda what I ran the last time out. But honestly my laptop was busted and I couldn't put timing back in, I should be running 115mph.
If he can get his mid 1.8 60's to 1.6 or better that should drop his 12.4 to a high 11, agreed? But I bet he'd also pick up a couple mph at the same time.
If he can get his mid 1.8 60's to 1.6 or better that should drop his 12.4 to a high 11, agreed? But I bet he'd also pick up a couple mph at the same time.
& I agree 2 tenths in the 60 is worth 4 in the 1/4
07-01-2016, 09:03 AM
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Surprised it didn't launch harder with a 4k stall. That could either be the tranny or converter. Or maybe the engine combo.
Al
07-01-2016, 10:14 AM
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I have GN that's too pretty to drive and park anywhere, I'm looking at your thread because Id like to build a ls powered g body. Post up more progress updates when you get them.
