questions about low 1st gear

1320racer · 10-16-2013, 04:08 PM

4.86 gear, converter flashes to 5400, Comp solid lifter cam, 246/256 @ .050, .589/.615.

Best numbers to date are 10.38 @ 127, 1.37 60 foot

hardtimes · 10-16-2013, 04:42 PM

my cousin only runs a 4.33 gear shifts at 6500 and his converter is 5100. has roller spring perches in the front and also runs a maverick springs and the calvert shocks his wheel stand is only about 1/3 of that one. but he wants his to look like that one. the two combo seems pretty close to the same, except the gear do you think it would make that much of a difference.

joespanova · 10-16-2013, 07:07 PM

The more you race / the older you get, the less you'll care about wheelstands.
Besides , its all shocks springs and IC.

pintojoe II · 10-16-2013, 10:10 PM

c4 with 2.46 first gear / ptc 8'' conv flashed 6,600 off footbrake / 4.62 rear gear /289 A code short block with after market heads /intake and cam / 3000lbs on 275 drag radial with slapper bars..

hardtimes · 01-31-2016, 09:49 PM

1320racer you said your friends Mustang ran 6.60's in the 1/8th was just curious with those 4.86 and 30 radials what kind of RPM is it turning at the stripe in the 1/8th

Larry Hill · 02-01-2016, 07:59 AM

Is the car 50/50 or better?

Dan Fahey · 02-01-2016, 09:13 AM

The 4L60E gives heavy cars like my ImpalaSS a great 60ft time.
Car uses the heavier Locking Converter works good for 1-2 Shift.
First Gear is 3.09

D

10-18-2013, 10:15 AM

That Mustang is a good car, and runs real well. He has changed the rear gear since that pic and calmed it down some but it runs the same, if not faster.

A low gear helps some people and not others. Depends what kind of car engine, ect.
My brother has a Maverick with a .040 Boss 302. Bracket race car. He went from a 2.46 to a 2.91 in his C4. His car picked up around .08 and .04 in the 60'. Carries the front wheels almost to the 60' clock. When he leaves high on the converter. Made a big difference for him. Small engine, no tq what so ever. A lot of the NHRA class cars run a lower first gear. You will have to test and find out for your self to get your answer.
YMMV. Good luck

1320racer · 10-18-2013, 10:29 AM

Todd, just to clarify for the op, Leigh did not change the rear gear to calm the launch/kill the wheelie, he changed the rear gear ratio to reduce his trap RPM which increase by 200 when he made the switch to radial slicks 4 years ago, a gear ratio he had been running for nearly 30 years.

10-18-2013, 11:40 AM

Ed, I didn't / wasn't going to state the reason for the gear change. Just was relaying the results.

Quote:

Originally Posted by 1320racer

Todd, just to clarify for the op, Leigh did not change the rear gear to calm the launch/kill the wheelie, he changed the rear gear ratio to reduce his trap RPM which increase by 200 when he made the switch to radial slicks 4 years ago, a gear ratio he had been running for nearly 30 years.

10-16-2013, 04:08 PM	#1
1320racer VIP Member Join Date: Nov 2007 Location: New Jersey Posts: 2,628 Likes: 160 Liked 759 Times in 379 Posts	Re: questions about low 1st gear 4.86 gear, converter flashes to 5400, Comp solid lifter cam, 246/256 @ .050, .589/.615. Best numbers to date are 10.38 @ 127, 1.37 60 foot

10-16-2013, 04:42 PM	#2
hardtimes Junior Member Join Date: Sep 2012 Posts: 32 Likes: 0 Liked 0 Times in 0 Posts	Re: questions about low 1st gear my cousin only runs a 4.33 gear shifts at 6500 and his converter is 5100. has roller spring perches in the front and also runs a maverick springs and the calvert shocks his wheel stand is only about 1/3 of that one. but he wants his to look like that one. the two combo seems pretty close to the same, except the gear do you think it would make that much of a difference.

10-16-2013, 07:07 PM	#3
joespanova Senior Member Join Date: Jun 2011 Location: Ga. Posts: 521 Likes: 7 Liked 13 Times in 11 Posts	Re: questions about low 1st gear The more you race / the older you get, the less you'll care about wheelstands. Besides , its all shocks springs and IC.

10-16-2013, 10:10 PM	#4
pintojoe II Junior Member Join Date: Nov 2006 Location: n.j. Posts: 23 Likes: 2 Liked 1 Time in 1 Post	Re: questions about low 1st gear c4 with 2.46 first gear / ptc 8'' conv flashed 6,600 off footbrake / 4.62 rear gear /289 A code short block with after market heads /intake and cam / 3000lbs on 275 drag radial with slapper bars..

01-31-2016, 09:49 PM	#5
hardtimes Junior Member Join Date: Sep 2012 Posts: 32 Likes: 0 Liked 0 Times in 0 Posts	Re: questions about low 1st gear 1320racer you said your friends Mustang ran 6.60's in the 1/8th was just curious with those 4.86 and 30 radials what kind of RPM is it turning at the stripe in the 1/8th

02-01-2016, 07:59 AM	#6
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,640 Likes: 1,937 Liked 10,704 Times in 2,229 Posts	Re: questions about low 1st gear Is the car 50/50 or better? __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817

02-01-2016, 09:13 AM	#7
Dan Fahey VIP Member Join Date: Oct 2008 Posts: 2,128 Likes: 1,084 Liked 184 Times in 113 Posts	Re: questions about low 1st gear The 4L60E gives heavy cars like my ImpalaSS a great 60ft time. Car uses the heavier Locking Converter works good for 1-2 Shift. First Gear is 3.09 D

10-18-2013, 10:15 AM	#8
Todd Hoven Guest Posts: n/a	Re: questions about low 1st gear That Mustang is a good car, and runs real well. He has changed the rear gear since that pic and calmed it down some but it runs the same, if not faster. A low gear helps some people and not others. Depends what kind of car engine, ect. My brother has a Maverick with a .040 Boss 302. Bracket race car. He went from a 2.46 to a 2.91 in his C4. His car picked up around .08 and .04 in the 60'. Carries the front wheels almost to the 60' clock. When he leaves high on the converter. Made a big difference for him. Small engine, no tq what so ever. A lot of the NHRA class cars run a lower first gear. You will have to test and find out for your self to get your answer. YMMV. Good luck Last edited by Todd Hoven; 10-18-2013 at 10:19 AM.

10-18-2013, 10:29 AM	#9
1320racer VIP Member Join Date: Nov 2007 Location: New Jersey Posts: 2,628 Likes: 160 Liked 759 Times in 379 Posts	Re: questions about low 1st gear Todd, just to clarify for the op, Leigh did not change the rear gear to calm the launch/kill the wheelie, he changed the rear gear ratio to reduce his trap RPM which increase by 200 when he made the switch to radial slicks 4 years ago, a gear ratio he had been running for nearly 30 years.