New track times...still not happy...need help for 12's

88workcar · 05-31-2005, 09:50 PM

60ft is killing you, what do you cross at (RPM)?

82 GT · 05-31-2005, 09:59 PM

I'm crossing the traps at around 5500.....about 500rpms less than my 6000 redline. That's what I want...right?

88workcar · 06-01-2005, 05:55 AM

If you cross at 5500 the gear-tire is close, go with more converter

82 GT · 06-01-2005, 06:51 AM

I'm not sure what you mean by gear-tire.

06-01-2005, 02:19 PM

Quote:

Originally Posted by 82 GT

I'm not sure what you mean by gear-tire.

He means that your rearend gear & tire height combo are close to getting you through the tracks at the optimum rpms. A 1.94 60' is where your problem lies IMO. Are you running slicks? I see you have subframe connectors, but do you have any traction devices, like traction bars or boxed upper/lower control arms? If you can cut your 60' down to a 1.70...you'll be in the 12s easy.

82 GT · 06-01-2005, 04:02 PM

I run slicks and no other traction device.

06-01-2005, 04:52 PM

Wow. Your 60' should be WAY better than 1.9s with drag slicks. I take it you don't have a trans brake? Even without one though...you should be able to put your foot on the brake and bring the rpms up to 2000-2500rpms before the converter begins grabbing and the car inches forward. I'd say work on your launches. What rpm are you launching your car at? Do you heat your slicks up enough? What tire pressure are you running on your slicks?

05-31-2005, 09:50 PM	#1
88workcar Registered Member Join Date: Oct 1999 Location: Pierre Part, La. U.S.A. Posts: 1,850	Re: New track times...still not happy...need help for 12's 60ft is killing you, what do you cross at (RPM)? __________________ 88workcar 1988 Mustang LX 342. 417rwhp @ 6800. 28 X 10 ET Drag, 4.30s, 10.69 @ 126.43 1.42 60ft. 11.13 @ 127.7 on BFGs 1.72 60ft Rice Hater # 42 To be old and wise, You must first be young and stupid I'm somewhere in tthe middle.

05-31-2005, 09:59 PM	#2
82 GT Import Slayer Join Date: May 1999 Posts: 2,241	Re: New track times...still not happy...need help for 12's I'm crossing the traps at around 5500.....about 500rpms less than my 6000 redline. That's what I want...right? __________________ '82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator.

06-01-2005, 05:55 AM	#3
88workcar Registered Member Join Date: Oct 1999 Location: Pierre Part, La. U.S.A. Posts: 1,850	Re: New track times...still not happy...need help for 12's If you cross at 5500 the gear-tire is close, go with more converter __________________ 88workcar 1988 Mustang LX 342. 417rwhp @ 6800. 28 X 10 ET Drag, 4.30s, 10.69 @ 126.43 1.42 60ft. 11.13 @ 127.7 on BFGs 1.72 60ft Rice Hater # 42 To be old and wise, You must first be young and stupid I'm somewhere in tthe middle.

06-01-2005, 06:51 AM	#4
82 GT Import Slayer Join Date: May 1999 Posts: 2,241	Re: New track times...still not happy...need help for 12's I'm not sure what you mean by gear-tire. __________________ '82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator.

06-01-2005, 04:02 PM	#6
82 GT Import Slayer Join Date: May 1999 Posts: 2,241	Re: New track times...still not happy...need help for 12's I run slicks and no other traction device. __________________ '82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator.

06-01-2005, 04:52 PM	#7
Simi Stang Guest Posts: n/a	Re: New track times...still not happy...need help for 12's Wow. Your 60' should be WAY better than 1.9s with drag slicks. I take it you don't have a trans brake? Even without one though...you should be able to put your foot on the brake and bring the rpms up to 2000-2500rpms before the converter begins grabbing and the car inches forward. I'd say work on your launches. What rpm are you launching your car at? Do you heat your slicks up enough? What tire pressure are you running on your slicks? Last edited by Simi Stang; 06-01-2005 at 05:12 PM..

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