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Dragstrip and Launch Techniques Discussion 1/4 mile, 1/8 mile, launch discussions.

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Old 09-10-2012, 10:48 PM   #26
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No pics of the interior work other then right after I pulled the dash, I didnt take any when I did it. The supports are hiding behind the bumpers, and the dash stuff isn't visible. But yeah, other then brakes/coils I've got a few ideas to get the car to 3500 lbs. It's VERY close. Lexan back glass will drop another 40, and contemplating getting a sheet metal drivers seat to swap in for race days for another 30.

I rather increase the HP in the car with mods, rather than destroying it like that.

Remove the crash support from both front and rear? Seriously?
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Old 09-24-2012, 01:57 PM   #27
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Back to the topic, has anyone figured out how much weight reduction equals what drop in ET for these cars? Back in the 4th gen days we always said a 100 lbs would be a tenth.
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Old 09-26-2012, 07:35 AM   #28
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Back to the topic, has anyone figured out how much weight reduction equals what drop in ET for these cars? Back in the 4th gen days we always said a 100 lbs would be a tenth.
Seems to be close to the same from my experience so far, but I haven`t removed anything other than lighter whels exhaust, cai..
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Old 09-26-2012, 09:22 AM   #29
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I see maybe 50 lbs I can get out of mine for my next outing, 4th gen style. That seat weight in the list, leather or cloth? Mine is 1SS and cloth.
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Old 09-26-2012, 04:42 PM   #30
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Mine is a cloth 1SS seat.
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Old 09-29-2012, 09:09 PM   #31
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I rather increase the HP in the car with mods, rather than destroying it like that.

Remove the crash support from both front and rear? Seriously?
LOL, hp only gets you so far. I ran faster with bolt ons than your zl1 does stock even though you make much more power than I did. Its about getting the most out of what you have, not just throwing a bunch of parts at it.
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Old 09-29-2012, 09:17 PM   #32
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I rather increase the HP in the car with mods, rather than destroying it like that.

Remove the crash support from both front and rear? Seriously?
He's going more race car than street car, and low 10's are hard in a heavy tank. Let us know when you run low 12's.
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Old 09-30-2012, 02:24 PM   #33
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Just under 3/4 tank of E85... mind you this car has A/C, a stereo, and a legal rollbar. I think with lexan rear window, the BMR kit, and 1/4 tank it will roll on the scales at 3390.

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Old 09-30-2012, 03:00 PM   #34
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Is that without driver?
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Old 09-30-2012, 03:00 PM   #35
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yes
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Old 10-03-2012, 12:16 PM   #36
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Any ideas how much drop from stock L99 exhaust setup to aftermarket? I already have longtubes and cats, so talking about that big resonator to the tips.

Sounds like the jerry cans are 30 lbs each, and one of the mufflers I like is only 15 lbs. That big resonator contraption looks heavy though.
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Old 10-03-2012, 01:55 PM   #37
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I know the reso's on from my ls3 were pretty heavy, I didnt think the cans wiegh all that much though. A one piece drive shaft and light wheels would make a killer difference!
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Old 10-03-2012, 02:12 PM   #38
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My one piece isnt any lighter then the stock driveshaft. Maybe a half pound, but nothing significant. Wheels are big though
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Old 10-19-2012, 11:41 AM   #39
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Anyone ever figure out how much the fenders and doors weigh?
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Old 04-22-2013, 07:06 AM   #40
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Bump so I can find it later

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Old 06-07-2013, 11:21 PM   #41
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Anyone ever figure out how much the fenders and doors weigh?
fenders are 6lbs
doors 68lbs striped 139lbs off the car
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Old 06-07-2013, 11:23 PM   #42
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spare tire hole 26lbs
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7.83 @ 172 and 1.15 60ft 5th gen
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Old 06-08-2013, 03:17 AM   #43
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Any ideas how much drop from stock L99 exhaust setup to aftermarket? I already have longtubes and cats, so talking about that big resonator to the tips.

Sounds like the jerry cans are 30 lbs each, and one of the mufflers I like is only 15 lbs. That big resonator contraption looks heavy though.
I would like to know this as well. What does the factory L99 full exhaust from manifolds to tips weigh vs LT headers to full aftermarket cat back.
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Old 06-09-2013, 01:04 PM   #44
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Im currently trying to figure out ways to reduce weight in the front of the car only. Its getting tougher than i thought without spending a bunch of money.
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Old 07-03-2013, 05:27 AM   #45
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ON THE WEIGHT LOST PROGRAM. LOL
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Old 07-03-2013, 08:55 AM   #46
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Did a 10.87 in March temp were in the low 70 after that some suspension work gear change 3.27 to 3.45. I know the high temp is killing me now high 80 and 90. Have removed front sway bar and have cadillac spares with M/H tires sway bar 17lb front runner 35lb each that's total of 71lb gone off front. Maybe i can break my time of 10.87 with the high temp????
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Old 07-05-2013, 04:35 PM   #47
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Aluminum driveshaft. Drilled wheel studs. Aluminum lug nuts... I raced asphalt oval track, always looking for weight advantages as less rotating weight.
Are u running an elect fan?
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Old 07-05-2013, 05:04 PM   #48
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Why would you drill the wheel studs? Wouldn't that harm the integrity of the stud

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Old 07-05-2013, 11:15 PM   #49
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Older. its down to 3385 now, nothing like progress.
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Old 07-06-2013, 12:27 PM   #50
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Im currently trying to figure out ways to reduce weight in the front of the car only. Its getting tougher than i thought without spending a bunch of money.
Same here, finding it a little hard to remove weight from the front, I know when I finally get my headers installed I will lose 12lbs but other than that not sure how else to get ride of some weight from the front.

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Older. its down to 3385 now, nothing like progress.
That is very very impressive congratz!
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