New personal best for the 1/4 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

jessrayo · 04-06-2014, 04:16 PM

I went out Friday night and made about 15 passes on the 1/4. I'm still having trouble with my throttle body closing by itself at around 6000 rpm if I try to run out a gear. The clutch is overheating if I try to hot lap and you just cannot force the lever into the next gear. No traction compound at all on the surface but if I would burn the he!! out of the tires and stage fairly quickly I could not over power the tires. I now have the fastest 60ft time for a manual car on drag radials on the 60ft fast list. I had someone else video my run and as soon as I get the video I'll post it up on my build page. Here is the slip on my new record run.

st33v · 04-06-2014, 04:35 PM

nice run buddy!

onewaydave · 04-06-2014, 04:54 PM

Very nice run!

ZL1 Spoked · 04-06-2014, 05:51 PM

what are you launching at? slipping the clutch at what rpm? Any help is appreciated..

Stephen12ZL1 · 04-06-2014, 07:55 PM

great 60' with one of the strangest e.t./mph combos I have seen. That 6000 rpm hesitation has to be killing the e.t. +32 mph for the 2nd 1/8!

jessrayo · 04-06-2014, 08:40 PM

Quote:

Originally Posted by ZL1 Spoked

what are you launching at? slipping the clutch at what rpm? Any help is appreciated..

I've decided I'm not a fan of the "lanch control" It won't let the car rev above 4500 with the clutch in and if the tires are good and warm and I stratight dump the clutch at the 4500 launch control rpm it bogs in the first 5 feet so I have to hold the throttle wide open and then drag the clutch until the launch control turns off and gives me the full run on the tach.....then let the clutch all the way out. It was pretty difficult but I got it right on one pass. And I'm afraid this clutch is not going to last another 30 passes if I don't change something....because I was getting it so hot it would not go into gear again....

Quote:

Originally Posted by Stephen12ZL1

great 60' with one of the strangest e.t./mph combos I have seen. That 6000 rpm hesitation has to be killing the e.t. +32 mph for the 2nd 1/8!

Yeah, the limiter is set at 7 but if I didn't shift at 6 I didn't know what I would get because the throttle body may just close on it's own. I believe it did in the early gears on this run but I got the back 1/8 together. Yeah, a 1.49 60 foot and 3.8 seconds on the last 1/8... obviously I lolly gagged somewhere in the middle...lol. But this was the best run I had on the night. Most were low 11's. This thing is really not that easy to drive fast....lol.

Thanks for all the positive comments guys. I'm still trying to figure out how to run faster without tearing up this $3000 clutch...

ZL1 Spoked · 04-06-2014, 08:54 PM

So just to get this right, you have launch control activated but you drag the clutch in order to have your rpms go past the 4500 mark and then dump the clutch? Just trying to figure out a new technique thanks for helping and clarifying if you can

[QUOTE=jessrayo;7559207]I've decided I'm not a fan of the "lanch control" It won't let the car rev above 4500 with the clutch in and if the tires are good and warm and I stratight dump the clutch at the 4500 launch control rpm it bogs in the first 5 feet so I have to hold the throttle wide open and then drag the clutch until the launch control turns off and gives me the full run on the tach.....then let the clutch all the way out. It was pretty difficult but I got it right on one pass. And I'm afraid this clutch is not going to last another 30 passes if I don't change something....because I was getting it so hot it would not go into gear again….

AZ-ZL1 · 04-06-2014, 09:26 PM

Wow on the 60'...15 passes? My god, were you the only one there?

UBNZO6D · 04-06-2014, 09:34 PM

Great 60...I would guess that your MPH should be well north of 140 with that kind of HP...

Greg

Todd in Vancouver · 04-07-2014, 12:34 AM

Wow, that is haulin a$$ and movin

jessrayo · 04-07-2014, 10:18 AM

[QUOTE=ZL1 Spoked;7559237]So just to get this right, you have launch control activated but you drag the clutch in order to have your rpms go past the 4500 mark and then dump the clutch? Just trying to figure out a new technique thanks for helping and clarifying if you can

Quote:

Originally Posted by jessrayo

I've decided I'm not a fan of the "lanch control" It won't let the car rev above 4500 with the clutch in and if the tires are good and warm and I stratight dump the clutch at the 4500 launch control rpm it bogs in the first 5 feet so I have to hold the throttle wide open and then drag the clutch until the launch control turns off and gives me the full run on the tach.....then let the clutch all the way out. It was pretty difficult but I got it right on one pass. And I'm afraid this clutch is not going to last another 30 passes if I don't change something....because I was getting it so hot it would not go into gear again….

I'm going to have to check into this again. I have a line lock that is supposed to completely diable the traction control. Sometimes it does not and I even stall trying to do the burnout. I usually hold the button for 7 seconds everytime I restart the car to disable nannies but sometimes I forget... like if someone oils the track and they hold us up for a bit and I shut the car off to keep the heat down. I don't know for sure if "launch control" is turned off with traction control. That's what I want to test. It seems like the car will just not rev as high with the clutch in and the car not moving. As soon as the tires start to turn it starts to bounce off the limiter.... I hold the rpms as high as can until the last amber and then start the clutch out and drag it, the car moves a little, I hammer the gas and then as soon as it sounds like it is picking up rpms, I let the clutch out the rest of the way. If I dump the clutch it lurches and bogs....

Quote:

Originally Posted by AZ-ZL1

Wow on the 60'...15 passes? My god, were you the only one there?

I really don't think there were more than 30 cars there and most of them did less than 5 runs. I only had to wait in line a couple of times, most of the time I could just drive up and run solo like I did on this pass.

Quote:

Originally Posted by UBNZO6D

Great 60...I would guess that your MPH should be well north of 140 with that kind of HP...

Greg

I really would be a lot faster if I would have just left the stock gear ratios alone. But I didn't.... So now that I have the 3.23 auto rearend in the car the overall gear ratios are really too high for the 1/4. I have to shift out of 3rd at around 120 if my throttle body stays open. My car will do 160+ in 4th.

Quote:

Originally Posted by Todd in Vancouver

Wow, that is haulin a$$ and movin

It is kind of funny because I know the car is fast but if I give someone else a ride, I took 3 people for a 1/4 mile burst that night... they really freak and give me the holy crap after the run is over. It is a lot of fun. Better than a roller coaster...

LS3pwrdBuffalo · 04-07-2014, 10:25 AM

Awesome run! You're giving all us man pedal guys some hope!

bkatzman · 04-07-2014, 04:48 PM

Nice Run

Trackman · 04-07-2014, 04:57 PM

That is a serious 60 foot! Nice MPH.

I predict every time out will be a new personal best.

Quit hot lappin.

04-06-2014, 04:16 PM	#1
jessrayo Speed Freak Drives: 2013 ZL1 Camaro, 2016 Camaro SS Join Date: Jun 2013 Location: Ardmore, OK Posts: 2,637 View My Garage	New personal best for the 1/4 I went out Friday night and made about 15 passes on the 1/4. I'm still having trouble with my throttle body closing by itself at around 6000 rpm if I try to run out a gear. The clutch is overheating if I try to hot lap and you just cannot force the lever into the next gear. No traction compound at all on the surface but if I would burn the he!! out of the tires and stage fairly quickly I could not over power the tires. I now have the fastest 60ft time for a manual car on drag radials on the 60ft fast list. I had someone else video my run and as soon as I get the video I'll post it up on my build page. Here is the slip on my new record run. Attached Images __________________ 2016 SS -AGP twin Borg Warner 7163 EFR's, LT4 mechanical pump, LT4 injectors, Walbro 255 low side, Castrol SRF. 734whp/759 tq 2013 ZL1 -ADM - 427 LSX 6 bolt, O-ringed block built by LME. Twin PT6466 turbos. RPM custom manual trans, RPS Quad carbon clutch, 9" Hendrix rear diff & axles. ADM/squash fuel system, Ron Davis radiator, Spal fans, AGP air to air, turbo plumbing. LPE oil cooler, rear bushing upgrade, roll bar...etc. rwhp 1400+... 212.5mph, best Texas mile to date.

04-06-2014, 04:54 PM	#3
onewaydave Innocent Bystander Drives: 2013 ZL1 BRM/2002 35th SS/2009 GMC Join Date: Dec 2009 Location: Alaska Posts: 385 View My Garage	Very nice run! __________________ Living on the RaGgEd EdGe!

04-06-2014, 05:51 PM	#4
ZL1 Spoked Drives: Camaro ZL1 Join Date: Aug 2012 Location: CA Posts: 1,131	what are you launching at? slipping the clutch at what rpm? Any help is appreciated.. __________________ -2013 Camaro ZL1-Black Stripe Package-Ambient Light Kit-Subwoofer Package-Sunroof-Suede Package-NAV MYLINK-MANUAL BABY-Dual Vented Fenders-Exposed Carbon Fiber Insert -Black 10 Spoke Wheels 604 RWHP 602 LBS/TQ

04-06-2014, 07:55 PM	#5
Stephen12ZL1 Drives: '21 ZLE A10 Join Date: May 2012 Location: Mechanicsville, VA Posts: 6,808	great 60' with one of the strangest e.t./mph combos I have seen. That 6000 rpm hesitation has to be killing the e.t. +32 mph for the 2nd 1/8! __________________ '21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60' '17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold)

04-06-2014, 08:54 PM	#7
ZL1 Spoked Drives: Camaro ZL1 Join Date: Aug 2012 Location: CA Posts: 1,131	So just to get this right, you have launch control activated but you drag the clutch in order to have your rpms go past the 4500 mark and then dump the clutch? Just trying to figure out a new technique thanks for helping and clarifying if you can [QUOTE=jessrayo;7559207]I've decided I'm not a fan of the "lanch control" It won't let the car rev above 4500 with the clutch in and if the tires are good and warm and I stratight dump the clutch at the 4500 launch control rpm it bogs in the first 5 feet so I have to hold the throttle wide open and then drag the clutch until the launch control turns off and gives me the full run on the tach.....then let the clutch all the way out. It was pretty difficult but I got it right on one pass. And I'm afraid this clutch is not going to last another 30 passes if I don't change something....because I was getting it so hot it would not go into gear again…. __________________ -2013 Camaro ZL1-Black Stripe Package-Ambient Light Kit-Subwoofer Package-Sunroof-Suede Package-NAV MYLINK-MANUAL BABY-Dual Vented Fenders-Exposed Carbon Fiber Insert -Black 10 Spoke Wheels 604 RWHP 602 LBS/TQ

04-06-2014, 04:35 PM	#2
st33v Drives: 2010 Camaro SS Join Date: Apr 2011 Location: MA Posts: 35	nice run buddy!

04-06-2014, 09:26 PM	#8
AZ-ZL1 Dry Heat My @ss Drives: 2012 ZL1 SUMMIT WHITE Join Date: Mar 2012 Location: Chandler, Arizona Posts: 758	Wow on the 60'...15 passes? My god, were you the only one there? __________________ 2012 #1765: Xpel Clear Bra, 15% Tint, M2W, LPE GT9 Cam, Ported Heads & Snout, Upgraded Valve Train, 90mm TB, LPE Dual Fan HX, 2.55 Upper, 9.1 Lower (18%), Id850's, KB BAP, Roto-fab CAI, AR Stainless Headers, 673 rwhp, A6, Nothin but Fun!

04-06-2014, 09:34 PM	#9
UBNZO6D Drives: ZL1 Join Date: Dec 2009 Location: Socal Posts: 291	Great 60...I would guess that your MPH should be well north of 140 with that kind of HP... Greg __________________ 1935 Chevy 1956 BelAir HT 2004 Z16 2015 SS

04-07-2014, 12:34 AM	#10
Todd in Vancouver Drives: 2014 ZL1 Join Date: Oct 2013 Location: Vancouver, BC Posts: 1,538 View My Garage	Wow, that is haulin a$$ and movin __________________ Todd in Vancouver '14 ZL1 Camaro '67 Camaro SS Pro-tour in process How hard can it be... Check out my other build http://www.pro-touring.com/threads/9...ject-Obsession

04-07-2014, 10:25 AM	#12
LS3pwrdBuffalo Drives: 2013 Victory Red ZL1 6spd Join Date: Feb 2014 Location: Charleston, WV Posts: 68	Awesome run! You're giving all us man pedal guys some hope! __________________

04-07-2014, 04:48 PM	#13
bkatzman Drives: 2018 Camaro ZL1/1LE Join Date: Mar 2012 Location: Franklin, Wisconsin Posts: 247	Nice Run

04-07-2014, 04:57 PM	#14
Trackman Drives: 67RS Camaro ,Black 2013 ZL1 Join Date: Jun 2010 Location: Alberta Posts: 1,408	That is a serious 60 foot! Nice MPH. I predict every time out will be a new personal best. Quit hot lappin.