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Author
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Topic: What will it run?
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Warhorse
Journeyman Posts: 41
From: Greenwood,SC
Registered: Dec 2002
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posted 01-08-2003 08:55 PM
   
With a set of AFR 185's, different intake and the right convertor along with the mods in the sig what could the car run? I am tired of playing around with the car I want to get it running mid 7's in the 1/8 at least.------------------
65 mustang
drag car, 302, Elderbrok torker intake, Holley 650 double pumper, Comp cams .592 lift, 289 heads w/ 351 valves, longtube headers, narrowed 9 in. rearend w/ 5.86 gear, 31 spline axles, c-4 w/ Hurst shifter, ladder bar suspension, 31x13x15 slicks, 6 point cage
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steve'66
Gearhead Posts: 6522
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 01-08-2003 09:34 PM
You should run low 7's with the right Converter and heads. What does it weigh? What's the duration and c/l of that cam?Why afr heads? You're gonna have to spin that motor up a bit.  SteveW
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Warhorse
Journeyman Posts: 41
From: Greenwood,SC
Registered: Dec 2002
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posted 01-08-2003 09:48 PM
Why not AFR heads they are a quality head. The car weighs 2900 lbs. The cam is a hydrollic roller, the lift is .592. Right now the car wont do a burn out in the water box and want pull past 6k rpms. I just figured I would upgrade the heads and get the convrtor fixed at the same time.------------------
65 mustang
drag car, 302, Elderbrok torker intake, Holley 650 double pumper, Comp cams .592 lift, 289 heads w/ 351 valves, longtube headers, narrowed 9 in. rearend w/ 5.86 gear, 31 spline axles, c-4 w/ Hurst shifter, ladder bar suspension, 31x13x15 slicks, 6 point cage
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mustangboy
Gearhead Posts: 652
From: Ont, Canada
Registered: Mar 2002
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posted 01-08-2003 10:11 PM
What is the duration of the camshaft?Just from what I've read the motor should pull to 6000rpm even with the stock heads.What kind of times does the car run now?
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Warhorse
Journeyman Posts: 41
From: Greenwood,SC
Registered: Dec 2002
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posted 01-09-2003 08:12 PM
The car went a very slow 8.30 @ 82 in the 1/8. It would not do much of a burnout at all. On the line the car would pull through the lights if you stagged it higher than 1500rpms. Off the line the car is very sluggish and really dosent pick up until the rpms pick up. The duration of the cam at .050 is intake-250/exhaust-260.------------------
65 mustang
drag car, 302, Elderbrok torker intake, Holley 650 double pumper, Comp cams .592 lift, 289 heads w/ 351 valves, longtube headers, narrowed 9 in. rearend w/ 5.86 gear, 31 spline axles, c-4 w/ Hurst shifter, ladder bar suspension, 31x13x15 slicks, 6 point cage
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mustangboy
Gearhead Posts: 652
From: Ont, Canada
Registered: Mar 2002
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posted 01-09-2003 08:46 PM
That is a huge camshaft.I,m sure it doesn't even start to pull until around 3500-4000 and would like to be spun up to 7000.What kind of compression are you running?You would need about 11:1 to work with that cam and probably a victor Jr intake to make power that high.I would also think you would also need a stall convertor in the 35-4500 range.You either need a smaller cam or more motor to go with it in my opinion.
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Warhorse
Journeyman Posts: 41
From: Greenwood,SC
Registered: Dec 2002
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posted 01-10-2003 07:07 PM
The compression is 12.5:1.------------------
65 mustang
drag car, 302, Elderbrok torker intake, Holley 650 double pumper, Comp cams .592 lift, 289 heads w/ 351 valves, longtube headers, narrowed 9 in. rearend w/ 5.86 gear, 31 spline axles, c-4 w/ Hurst shifter, ladder bar suspension, 31x13x15 slicks, 6 point cage
IP: Logged |
Warhorse
Journeyman Posts: 41
From: Greenwood,SC
Registered: Dec 2002
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posted 01-11-2003 05:56 PM
Anyone else?------------------
65 mustang
drag car, 302, Elderbrok torker intake, Holley 650 double pumper, Comp cams .592 lift, 289 heads w/ 351 valves, longtube headers, narrowed 9 in. rearend w/ 5.86 gear, 31 spline axles, c-4 w/ Hurst shifter, ladder bar suspension, 31x13x15 slicks, 6 point cage
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kid vishus
Gearhead Posts: 4538
From: middle of NC
Registered: Oct 2000
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posted 01-11-2003 06:01 PM
I agree it needs a better convertor. Better heads will also help. But I also think that since it has a c4 trans, it has too much gear in it, even for 1/8 mile racing. The motor wont stay in it's powerband long enough to run down the track as fast as it should. The only time I would run a gear that deep is if you had a powerglide in it. I would think a 5.13 would work better. I would think with a good convertor and the AFR heads, it should easily in the low 7's.
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rfedd
Gearhead Posts: 76
From: Vancouver, WA, USA
Registered: Aug 99
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posted 01-12-2003 02:27 AM
One other observation is tire size. A good friend went from a 10.5 MT, got the car tubbed, moved up to a 14 inch MT and he LOST a full second. The car was simply over tire'd. Too much rotating mass..so it slowed him down.Ron ------------------
65 FB, 347 CI, C4, 4.56
60: 1.360
1/8: 6.17 @ 112
1/4: 9.74 @ 137
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jsracingbbf
Gearhead Posts: 1677
From: Batesville,MS. , U.S.A.
Registered: Mar 2002
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posted 01-12-2003 03:12 AM
quote:
Originally posted by rfedd:
One other observation is tire size. A good friend went from a 10.5 MT, got the car tubbed, moved up to a 14 inch MT and he LOST a full second. The car was simply over tire'd. Too much rotating mass..so it slowed him down.Ron
No such thing as over-tired I think maybe the motor was under powered. Agreed more tire = more weight but if what you say were true TOP fuel dragsters and classes all the way down would try to run smaller tires not bigger. There is no Rule limit on how small a tire you can run only how big. Just like cubic inches. If smaller were better there would be a rule on how small you could go. Only half the wheel and tire weight are assigned to the car. Right?  perfect example is the 10 inch tire class, those guys try every trick in the book to make a bigger tire "legal". Your buddies car probably slowed down due to the different tire's roll out or height. This changes the overall gear or MPH of the car. Taller tire = more MPH or more top end. A shorter tire acts like bigger gears, more bottom end. ------------------
Jerry
69 Mustang Pro ET Drag
70 Mustang retired former footbrake car
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jsracingbbf
Gearhead Posts: 1677
From: Batesville,MS. , U.S.A.
Registered: Mar 2002
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posted 01-12-2003 03:19 AM
Warhorse, I have no clue what it would run, my knoweldge on small block set-ups is VERY challenged. I did get the pics you sent though and the car looks good, has lots of potential. But then again I like to see a mustang race car of any type.------------------
Jerry
69 Mustang Pro ET Drag
70 Mustang retired former footbrake car
"Even a Blind Hog can find an acorn every now and then"
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kid vishus
Gearhead Posts: 4538
From: middle of NC
Registered: Oct 2000
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posted 01-12-2003 08:23 AM
Scotty and Edmund Richardson say the key to bracket racing is, "over tire, under gear and a loose convertor."
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jsracingbbf
Gearhead Posts: 1677
From: Batesville,MS. , U.S.A.
Registered: Mar 2002
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posted 01-12-2003 10:50 AM
quote:
Originally posted by kid vishus:
Scotty and Edmund Richardson say the key to bracket racing is, "over tire, under gear and a loose convertor."
They ought to know.
Jerry
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Warhorse
Journeyman Posts: 41
From: Greenwood,SC
Registered: Dec 2002
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posted 01-12-2003 11:13 AM
Jsracingbbf - Could you post the pictures of my car that I sent you in this thread?------------------
65 mustang
drag car, 302, Elderbrok torker intake, Holley 650 double pumper, Comp cams .592 lift, 289 heads w/ 351 valves, longtube headers, narrowed 9 in. rearend w/ 5.86 gear, 31 spline axles, c-4 w/ Hurst shifter, ladder bar suspension, 31x13x15 slicks, 6 point cage
IP: Logged |
rfedd
Gearhead Posts: 76
From: Vancouver, WA, USA
Registered: Aug 99
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posted 01-12-2003 11:40 AM
Excellent point and great qoute. I may use that in the future. Warhorse, what do you mean when you say that the car won't do a burn out in the water box? And do you have any idea what kind of power the car is making now?Ron ------------------
65 FB, 347 CI, C4, 4.56
60: 1.360
1/8: 6.17 @ 112
1/4: 9.74 @ 137
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Warhorse
Journeyman Posts: 41
From: Greenwood,SC
Registered: Dec 2002
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posted 01-12-2003 03:05 PM
When I am in the water box I press the line lock and the car is in 1st gear. When I try to start to do the burnout the tires just don't spin fast enough to get any kind of smoke. I haved tried to do a burnout in 2nd gear and the same thing happened. I guess something isent right in the convertor. First I am going to get the AFR heads and victor jr intake on their and see what the car does. I pretty sure I will still have to get the convetor changed.------------------
65 mustang
drag car, 302, Elderbrok torker intake, Holley 650 double pumper, Comp cams .592 lift, 289 heads w/ 351 valves, longtube headers, narrowed 9 in. rearend w/ 5.86 gear, 31 spline axles, c-4 w/ Hurst shifter, ladder bar suspension, 31x13x15 slicks, 6 point cage
IP: Logged |
jsracingbbf
Gearhead Posts: 1677
From: Batesville,MS. , U.S.A.
Registered: Mar 2002
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posted 01-12-2003 03:17 PM
Warhorse, I can't post them but maybe Steve can. Or if you have them on a host web site somewhere you can link to them. Click on the HTML button just to the left of a reply window. Jerry
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rfedd
Gearhead Posts: 76
From: Vancouver, WA, USA
Registered: Aug 99
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posted 01-12-2003 03:43 PM
If you do get a new converter, take a look at http://www.tcsperformance.com/ppdnew/s5s4.html
I went with the S5 series, but you probably want the S4. I looked at a lot of companies Coan, Hughes, B&M) and prices ranged from $800.00-$1200.00, but I paid $625.00 delivered with 1 free re-stall. It is really a trick piece, excellent quality.Ron ------------------
65 FB, 347 CI, C4, 4.56
60: 1.360
1/8: 6.17 @ 112
1/4: 9.74 @ 137
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kid vishus
Gearhead Posts: 4538
From: middle of NC
Registered: Oct 2000
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posted 01-12-2003 06:39 PM
I start my burnouts in second gear, and end them in high gear. No reason to start in first. With a gear as shirt as you have, you will never get enough tire speed to get them hot in low, maybe not even enough tire speed to get them hot in second.My method of madness:
Set the line lock, pull it into second gear, when the guy says to start, I whap the throttle pretty good to get the tires spinning, pull it into high gear almost right away and get into the throttle pretty aggressively and release the line lock. I come out of the water in high gear around 7500 rpm, takes me a total of about 8 seconds to do my entire burnout. And my car will 60' 1.32-1.33 all day doing my burnout that way.
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