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I finally got my 60ft under 2.0! Ran a 12.44 on n/a motor at Evadale Raceway on Test and Tune day. I do not have a picture of the slip right now since I am at my office but I will post it tonight when I get home. But what I do have is a few pictures.
Engine:
-Rebuilt with stock LS1 bottom end, LS2 timing chain, Melling Performance oil pump, Custom grind for N/A Comp cam (Sorry I do not know the specs, it was already in the engine before I could get the numbers off the back to call them), stock gaskets (full through)
Exhaust:
- OBX Racing LT headers, OBX Racing X-pipe with test cats, Home-made straight pipes with stainless steal tips, rear o2 sensor delete
Cooling System:
-DeWitts Racing Radiator with internal transmission cooler, 160 thermo, SP dual racing fans (set to 175 degrees), Dex-Cool Extended Life (40%) Distilled water (60%), B&M external transmission cooler
Transmission:
-LMR custom built stage 3 4L60e (graded for 800 rwhp, but we shall see), Yank pro series 3200 stall torque converter, stock drive shaft, stock differential (2.72 gear ratio), stock axles
Suspension:
-Stock C5 coupe suspension with air-ride, active handling, and competition drive mode, lowering all the way on stock bolts (from ground to body approx 3.5", nose lowered a tad more than rear)
Body & Weight reduction:
-VIS Carbon Fiber 4" Cowl Hood with TRACKSPEC T1 louvers (weighs 15 lbs compared to 76 lbs stock hood), stripped trunk of carpet and panels (weighed approx 45 lbs), removed floor mats (not much help but did it anyway lol), car approx weights 3100 without driver compared to stock weight of 3,212
Your next mod without a doubt should be rear gears. 12.44 with a 2.72 rear end (if I read that correctly) is really not bad. 3.73's or 3.90's would make that a whole different animal.
Your next mod without a doubt should be rear gears. 12.44 with a 2.72 rear end (if I read that correctly) is really not bad. 3.73's or 3.90's would make that a whole different animal.
Thanks, and yes you read correctly lol and ok, I was having some others tell me to do the 3.42 due to my stall being a 3200, I don't really understand their logic though, since I don't really have that knowledge to argue with haha
Thanks, and yes you read correctly lol and ok, I was having some others tell me to do the 3.42 due to my stall being a 3200, I don't really understand their logic though, since I don't really have that knowledge to argue with haha
I wouldnt be surprised if just a rear gear change alone could get that 60' down into the 1.7x range and your ET down near the 12.0 range, maybe even clip a high 11, but I'd know more after seeing your slip.
I wouldnt be surprised if just a rear gear change alone could get that 60' down into the 1.7x range and your ET down near the 12.0 range, maybe even clip a high 11, but I'd know more after seeing your slip.
My 60ft now is a 1.9 if I remember correctly. I believe if I had wider tire and slicks, 17x11, I'd help alot too, I don't have very good traction at the launch with these tires. the 12.4 was from a 2000 rpm launch. If I had sticky tires, I could do a high rpm and get a better 60ft.
I think I'd have traction issues with those gears and the tire size that I am on. I have tractions issues now and not fully able to stall to the full potential of my stall with the 2.72 gears.
I always had my best 60s on street tires by making them smoke. A dust off isnt going to help, too long and they get a little slippery. I would easuly be bottom 1.8s on street tires on a decent track prep and my buddies would get 1.7s some times. Play around with longer burnouts and see what happens.
I always had my best 60s on street tires by making them smoke. A dust off isnt going to help, too long and they get a little slippery. I would easuly be bottom 1.8s on street tires on a decent track prep and my buddies would get 1.7s some times. Play around with longer burnouts and see what happens.
Except dusting them off made me have my fastest run , but regardless, I did try various times in the water box. Had a couple of the pros there help me and they all said the water box isn't working for my tires except making them shitty. At first they said the same thing as you did by trying longer, well I ran a 14.9 from the *** end kicking out on me twice... A shorter time in the box, I ran a 13 flat which wasn't good either, so they made a dry path for me to try without it. At first I stalled up to 2700 rpm and ran a 12.6, one of them said try a lower stall on the street tires, so then I stalled to 2000 rpm and BAM 12.4, almost dead hook. It felt perfect almost immediately. And for anyone curious or thinking I used the box wrong, I'd burn in box then let off the gas and sling the water off while exiting the box and reverse back before the pre-stage sensor.
with some 3.42 gears and some good drag radials like M/Ts and playing around with the launch you should def. be in the 11s...
my old LT1 Camaro had nothing but a LT4 cam, 52mm throttle body, headers and 3.73 gears and on drag radials I ran 12.60s at 110 mph.. that car weighed a good 300 lbs more than yours and had 50 less hp..
with some 3.42 gears and some good drag radials like M/Ts and playing around with the launch you should def. be in the 11s...
my old LT1 Camaro had nothing but a LT4 cam, 52mm throttle body, headers and 3.73 gears and on drag radials I ran 12.60s at 110 mph.. that car weighed a good 300 lbs more than yours and had 50 less hp..
have fun
That's what alot of guys down here are saying, and thanks Those are good numbers
Over at a buddy's shop, he had some of these 15x10 rims with slicks on them laying around. We got bored and decided to see if they fit on the vette as a joke... well they did and it became more serious than a joke lol I'll have to raise the *** end about an 1" or so because the fenders touch the wheels when I launch. After I raise it, I gonna test them on the track yes I know they look strange on there and probably touch a soft spot on some people but hell, they are free and here, why not test? lol
06-05-2017, 10:49 AM
12.4 QT finally
, but regardless, I did try various times in the water box. Had a couple of the pros there help me and they all said the water box isn't working for my tires except making them shitty. At first they said the same thing as you did by trying longer, well I ran a 14.9 from the *** end kicking out on me twice... A shorter time in the box, I ran a 13 flat which wasn't good either, so they made a dry path for me to try without it. At first I stalled up to 2700 rpm and ran a 12.6, one of them said try a lower stall on the street tires, so then I stalled to 2000 rpm and BAM 12.4, almost dead hook. It felt perfect almost immediately. And for anyone curious or thinking I used the box wrong, I'd burn in box then let off the gas and sling the water off while exiting the box and reverse back before the pre-stage sensor.
yes I know they look strange on there and probably touch a soft spot on some people but hell, they are free and here, why not test? lol