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Old 05-18-2022, 10:54 AM   #43
laynlo15
 
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Originally Posted by Duramacr1 View Post
Guys, I have no idea why your cars are so heavy . I have the same car and it was 3600 with half tank off the showroom floor . I weighed it the day after . 2021 LT1 A10. No wing, splitter , sunroof , etc . Pretty much a basic model . Now it’s down to 3300 with a 1/4 tank with your basic weight reduction , dragpak , passenger seat out , rear seat out, sway bar, belly pan , etc. . Anyway , I’ve been told that my car is a factory freak, but I ran 11.4 at 123 on a flex fuel tune and dragpak only at 1000DA. Maybe try a dragpak . Skinnies help out a lot more then you think . I have draggy back to back runs that skinnies give you 1.5 more mph in the 1/8. I would imagine In the 1/4 it’s worth 2 mph. I saved 90lbs with a dragpak. I think that’s one of the first things you should do, but that’s just my opinion .
You have a fast car there is not doubt about that and you've done a great job on the weight reduction.
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Old 05-18-2022, 10:56 AM   #44
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Originally Posted by Duramacr1 View Post
Lt4camaro. I saved 34lbs on each side alone with skinnies. My RC comps are 16lbs and my bias ply Hoosiers are 12lbs. 28lbs vs stock wheel/tire weight of 62lbs . Rears are 50lbs each with a 17x10 RC Comp and the M/T 305 R. The wheels I got are cheaper amd lighter then VMS and racestars.
My rears 17x10 VMS and the 305R weighed 52 pounds each versus I thought 59lbs for the OE
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Old 05-18-2022, 11:23 AM   #45
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Originally Posted by laynlo15 View Post
Back in March you said the car should run a solid 120 and it did so you were right.
Your quote below
now its time to get it on the track. on stock wheels, id say it's a solid 120 car at this point.
odd that an auto car would behave as such, that's all. by all means, i still feel that it should trap 120, just asking questions. we're on the same team here. i was hoping someone would chime in with info regarding the trans tune. the a10 cars don't seem to suffer like the a8. just curious. i have a full weight m6 1LE, but it never hurts to learn.
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Old 05-18-2022, 11:25 AM   #46
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Originally Posted by lt4camaro View Post
My rears 17x10 VMS and the 305R weighed 52 pounds each versus I thought 59lbs for the OE
my 17x9.5 racecar with 275/40/17 mt et street r weighed 51 vs the factory 1LE rear/tire combo @ 59 lb.
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Old 05-18-2022, 03:20 PM   #47
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odd that an auto car would behave as such, that's all. by all means, i still feel that it should trap 120, just asking questions. we're on the same team here. i was hoping someone would chime in with info regarding the trans tune. the a10 cars don't seem to suffer like the a8. just curious. i have a full weight m6 1LE, but it never hurts to learn.
I agree on the odd two out of 5 runs that trapped over 120 and being much higher than before and after passes with close to the same 60 ft. and ET. If you take all 5 passes, all 5 60 ft times, all 5 ETs and take out the two 120 MPH numbers , all the perimeters of each run fits and the car is consistant. All the 60 ft times were consistant so not much spin differences in any of the passes. Sometimes same car same day 1 pass good hook, 2nd pass poor hook and spin issues they seem to trap more mph and less ET. A super good hook and 0 spin net a great ET but of course a lower MPH. Regardless Laynlo is definitely running good.
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Old 05-18-2022, 05:31 PM   #48
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So, you don't see that I let off? I slowed down 11 mph to try and run the index. I could have run 120 on all those passes or dam close.. I was running a 12.00 index. What don't you understand about that and the launches were heat soaked because I couldn't open the hood and down track it started to cool off. Yes the car slowed down thru the 1/8 as it should with DA at 2900 plus and temps in the 80s. This is index racing and what you have to do to win money. Quit over analyzing this shit as I ran 3 passes in 30 minutes with hood closed. I don't know how else to explain it to you or s346.
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2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff

Last edited by laynlo15; 05-18-2022 at 05:44 PM.
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Old 05-18-2022, 06:18 PM   #49
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So, you don't see that I let off? I slowed down 11 mph to try and run the index. I could have run 120 on all those passes or dam close.. I was running a 12.00 index. What don't you understand about that and the launches were heat soaked because I couldn't open the hood and down track it started to cool off. Yes the car slowed down thru the 1/8 as it should with DA at 2900 plus and temps in the 80s. This is index racing and what you have to do to win money. Quit over analyzing this shit as I ran 3 passes in 30 minutes with hood closed. I don't know how else to explain it to you or s346.
Ok Gotcha. Please post some passes at your local track rental or street night test and tune where your just running for your ET. Thanks bud
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Old 05-18-2022, 06:22 PM   #50
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i wasn't referring to all 5 passes. you clearly stated you were trying to bracket race and were letting out on 3 of them. i was referring to the 2 "all out" very similar et passes that differed by 5 mph and 1 thou of a second. i have a few hundred passes down a drag strip myself, i get the bracket racing deal. i thought you made a thread so we could discuss a timeslip, my mistake. i'll stop asking questions.
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Old 05-18-2022, 07:10 PM   #51
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i wasn't referring to all 5 passes. you clearly stated you were trying to bracket race and were letting out on 3 of them. i was referring to the 2 "all out" very similar et passes that differed by 5 mph and 1 thou of a second. i have a few hundred passes down a drag strip myself, i get the bracket racing deal. i thought you made a thread so we could discuss a timeslip, my mistake. i'll stop asking questions.
No way, never stop asking questions. I have several thousand in 54 years but the point is my first pass I let out a little too early was 116. The next 2 passes in chronological order were 121 and 120. Then I started letting off to try and make the 12.00 index and thats when the 114 then the 110 mph occurred. When your running down the track your trying to calculate in your head when to let off, sometimes I'm right and sometimes I miss it. I missed it by 8 thou and cost me well over 1200 bucks. Its all good man. Lets keep trying to go fast when we are testing, when we are trying to win money its all different. No hard feelings at all. Thanks for posting.
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Old 05-18-2022, 09:54 PM   #52
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Honestly this is Lt4s thread and it kinda got jacked between my thread and his. So sorry about that Lt4. My bad.
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Old 05-19-2022, 08:56 AM   #53
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Honestly this is Lt4s thread and it kinda got jacked between my thread and his. So sorry about that Lt4. My bad.
No problem Laynlo, its healthy to go back and forth. Nothing but good thoughts and ideas come out of it. Besides I brought some of your post info into mine and comparing differences.
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Old 05-19-2022, 01:59 PM   #54
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No problem Laynlo, its healthy to go back and forth. Nothing but good thoughts and ideas come out of it. Besides I brought some of your post info into mine and comparing differences.
All good and I'll do that. Hopefully next month sometime.
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Old 08-16-2022, 10:25 PM   #55
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Very nice run. 120mph in 2100DA is good. Next time put it in Tour mode . Those MT’s will always hook. I was running those in my car and they were still dead hooking after 50 passes.
I also have an LT1. Flat foot it off idle in Tour mode. Tour mode softens the suspension and increases weight transfer . Try removing your front sway bar and belly pan for better results.
softer suspension decreased weight transfer, the energy is being absorbed by the suspension instead of transferring to the pavement through the rear wheel.
softer suspension just helps bad launching and increases rt and et.

Last edited by 2broke4zl1; 08-16-2022 at 10:27 PM. Reason: wrong word
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