60 ft. Question

COPPERN · 11-02-2011, 11:21 PM

1988 mustang 2900 lbs w/driver c4 tranny,5400 8 inch conveter 28x10.5
mt slick stock style suspension 4.56 gear aftermarket control arm and tubular k member.
Car ran 10.29 @132.12 with 1.49 60 footbraking.
349ci smblk ford apox. 525 hp.
Just wondering if the 60 ft can be improved and maybe a number I should be working toward.
Thanks.

FED 387 · 11-02-2011, 11:50 PM

you can set up a car to many different things---60 foot---- 1/8th ---1/4---ET--MPH what ever --- just cuz ya have a tremendous 60 foot time doesnt mean that the 1/4 is going to be fantastic too---now if the exact same or similiarly classed car car had a 1.39 vs. your 1.49 and the same 1/4 ET/MPH then you need to pick up your 60 a bit cuz a rule of thumb is for every .01 of 60 double it at the other end and take that time off your 1/4 mile ET and that's what your corrected ET should be--- for example 1.49 =60 and the 1/4 ET is 10.20 so if you could pick it up to say a 1.45=60 your 1/4 et should be .03x2+.06 new ET should be 10.14--- not carved in stone too many variables to consider but I hope this will give ya an idea

greg fulk · 11-03-2011, 02:52 AM

What low gear you have in the C4?

Chris1529 · 11-03-2011, 07:37 AM

What RPM are you leaving at when foot braking?

west coast · 11-03-2011, 10:56 AM

Aa Greg says Low gear in the C4 2.92 or 2.75 is the common low gear sets for these. If you are at a stock ratio you can inprove a bunch. My Fox body mustang stoker is simular in wieght and rear gear mine is 4.88 and I run the 2.92 first gear in the c4 has had the best 60' of 1.52 et are 11.97. Do you use a 2 step also?

Mile High · 11-03-2011, 11:22 AM

Any nitrous? Mine is a stock c4, 4.10 gear, 3120 lbs. with me, no nitrous. Usually 1.50 - 1.52 with 2 step at Bandimere runs 11.20's. San Antonio Nitro Jam last spring consistant 1.42's no 2 step. Footbraking at about 2000 rpm and stab the throttle. Ran high 10.50's -60's. Best 60' Saurday morning 1.405. Lots of fun.

Jeff

COPPERN · 11-03-2011, 11:33 AM

stock gear set 2.48 low gear ?
2500 rpm launch
no nitrous no 2-step/ non electronic class
Thanks for your replies

Mile High · 11-03-2011, 11:43 AM

I forgot to add with mine I never saw 126 mph. Best was 125.77 mph. I think 132 mph is a lot for that et.

Jeff

Ed Wright · 11-03-2011, 12:47 PM

You know, I keep hearing about the 60" improvements multiply. I must be doing something very wrong. Mine picks up in the 1/4 mile the same as the 60' improves.
Never more. When I first started trying to play with mine, after being away over 30 years (no 60' or other incremental times back then) I noticed that when I first tried to bracket race a little. So, I asked my old friend Mike Edwards about that, He knows more about things like that than anybody I know. He asked me "How could ETs improve more than 60' times?". I told him "I don't know, I just keep seeing guys talk about that on the internet." His reply was I needed to stay off the internet. LOL!

A car with enough power to run 132 MPH should at least 60" in the low 1.30s even foot braking it. 10.29 ETs for a normally aspirated 132 MPH car is a bit off. Should be very low tens at least. Fixing the 60' times would take care of that.

Rich Biebel · 11-03-2011, 01:10 PM

I have a friends car to drive and it was mine a few years ago.

It's a '97 Firebird LT-1 Stocker. He made some improvements since I owned it and it's a little faster now....

When I owned it I think my best 60' was around 1.32 or 1.34 and I ran some 10.50s in real good air..

A few weeks ago I had a 1.29 60' and ran 10.53 carrying more weight than when I ran the car.....I also had some 1.31-1.32 60's a week earlier at my local track.....Car weight was about 3150lbs. All runs have always been off the footbrake....no 2 step...

Big wheelies are pretty std on any of these cars and this one gets up pretty good at times.......

11-02-2011, 11:21 PM	#1
COPPERN Junior Member Join Date: Apr 2009 Posts: 13 Likes: 0 Liked 0 Times in 0 Posts	60 ft. Question 1988 mustang 2900 lbs w/driver c4 tranny,5400 8 inch conveter 28x10.5 mt slick stock style suspension 4.56 gear aftermarket control arm and tubular k member. Car ran 10.29 @132.12 with 1.49 60 footbraking. 349ci smblk ford apox. 525 hp. Just wondering if the 60 ft can be improved and maybe a number I should be working toward. Thanks.

11-02-2011, 11:50 PM	#2
FED 387 VIP Member Join Date: Jun 2006 Posts: 3,352 Likes: 331 Liked 280 Times in 150 Posts	Re: 60 ft. Question you can set up a car to many different things---60 foot---- 1/8th ---1/4---ET--MPH what ever --- just cuz ya have a tremendous 60 foot time doesnt mean that the 1/4 is going to be fantastic too---now if the exact same or similiarly classed car car had a 1.39 vs. your 1.49 and the same 1/4 ET/MPH then you need to pick up your 60 a bit cuz a rule of thumb is for every .01 of 60 double it at the other end and take that time off your 1/4 mile ET and that's what your corrected ET should be--- for example 1.49 =60 and the 1/4 ET is 10.20 so if you could pick it up to say a 1.45=60 your 1/4 et should be .03x2+.06 new ET should be 10.14--- not carved in stone too many variables to consider but I hope this will give ya an idea

11-03-2011, 02:52 AM	#3
greg fulk VIP Member Join Date: Jan 2003 Location: jackson Posts: 1,165 Likes: 0 Liked 5 Times in 3 Posts	Re: 60 ft. Question What low gear you have in the C4? __________________ Greg Fulk 308 308X P/SA "ALL AMERICAN"

11-03-2011, 07:37 AM	#4
Chris1529 VIP Member Join Date: Dec 2006 Location: West Virginia Posts: 1,367 Likes: 6 Liked 57 Times in 27 Posts	Re: 60 ft. Question What RPM are you leaving at when foot braking? __________________ Chris Bowman The Mountain State Mustang 1984 Mustang GT350

11-03-2011, 10:56 AM	#5
west coast Senior Member Join Date: Dec 2008 Location: Rainy Washington Posts: 577 Likes: 4 Liked 129 Times in 49 Posts	Re: 60 ft. Question Aa Greg says Low gear in the C4 2.92 or 2.75 is the common low gear sets for these. If you are at a stock ratio you can inprove a bunch. My Fox body mustang stoker is simular in wieght and rear gear mine is 4.88 and I run the 2.92 first gear in the c4 has had the best 60' of 1.52 et are 11.97. Do you use a 2 step also?

11-03-2011, 11:22 AM	#6
Mile High Member Join Date: Mar 2010 Location: My RV Posts: 218 Likes: 0 Liked 0 Times in 0 Posts	Re: 60 ft. Question Any nitrous? Mine is a stock c4, 4.10 gear, 3120 lbs. with me, no nitrous. Usually 1.50 - 1.52 with 2 step at Bandimere runs 11.20's. San Antonio Nitro Jam last spring consistant 1.42's no 2 step. Footbraking at about 2000 rpm and stab the throttle. Ran high 10.50's -60's. Best 60' Saurday morning 1.405. Lots of fun. Jeff __________________ Street legal 64 Falcon Sprint with 410W living in Texas. Stock - Super Stock fan

11-03-2011, 11:33 AM	#7
COPPERN Junior Member Join Date: Apr 2009 Posts: 13 Likes: 0 Liked 0 Times in 0 Posts	Re: 60 ft. Question stock gear set 2.48 low gear ? 2500 rpm launch no nitrous no 2-step/ non electronic class Thanks for your replies

11-03-2011, 11:43 AM	#8
Mile High Member Join Date: Mar 2010 Location: My RV Posts: 218 Likes: 0 Liked 0 Times in 0 Posts	Re: 60 ft. Question I forgot to add with mine I never saw 126 mph. Best was 125.77 mph. I think 132 mph is a lot for that et. Jeff __________________ Street legal 64 Falcon Sprint with 410W living in Texas. Stock - Super Stock fan

11-03-2011, 12:47 PM	#9
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 389 Times in 168 Posts	Re: 60 ft. Question You know, I keep hearing about the 60" improvements multiply. I must be doing something very wrong. Mine picks up in the 1/4 mile the same as the 60' improves. Never more. When I first started trying to play with mine, after being away over 30 years (no 60' or other incremental times back then) I noticed that when I first tried to bracket race a little. So, I asked my old friend Mike Edwards about that, He knows more about things like that than anybody I know. He asked me "How could ETs improve more than 60' times?". I told him "I don't know, I just keep seeing guys talk about that on the internet." His reply was I needed to stay off the internet. LOL! A car with enough power to run 132 MPH should at least 60" in the low 1.30s even foot braking it. 10.29 ETs for a normally aspirated 132 MPH car is a bit off. Should be very low tens at least. Fixing the 60' times would take care of that. __________________ Ed Wright 4156 SS/JA

11-03-2011, 01:10 PM	#10
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,275 Likes: 25 Liked 510 Times in 200 Posts	Re: 60 ft. Question I have a friends car to drive and it was mine a few years ago. It's a '97 Firebird LT-1 Stocker. He made some improvements since I owned it and it's a little faster now.... When I owned it I think my best 60' was around 1.32 or 1.34 and I ran some 10.50s in real good air.. A few weeks ago I had a 1.29 60' and ran 10.53 carrying more weight than when I ran the car.....I also had some 1.31-1.32 60's a week earlier at my local track.....Car weight was about 3150lbs. All runs have always been off the footbrake....no 2 step... Big wheelies are pretty std on any of these cars and this one gets up pretty good at times....... __________________ Rich Biebel S/C 1479