slow 501 need - 460 Ford Forum
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post #1 of 19 (permalink) Old 03-10-2013, 08:21 PM Thread Starter
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slow 501 need

Finally got a chance to run my car today, disappoint with the outcome. here's the built: 89 mustang 10 point cage all suspension bolt on 8.8 full spool with 4.88 gear. engine 501 stroker home ported C8 with 2.25/1.76 valves. comp solid flat @.050 270/276 .651/641 lift C4 trans 4000 stall. 4.14 crank 6.800 rods ross dome pistons guesting 13.5 compression 1050 dom carb

performance 1/8 mile only

1.49 60ft
7.16
92 mph
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post #2 of 19 (permalink) Old 03-10-2013, 08:22 PM Thread Starter
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car weight 3250 with me in it
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post #3 of 19 (permalink) Old 03-11-2013, 09:58 AM
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thats a big gear what size tires? whats your timing at?
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post #4 of 19 (permalink) Old 03-11-2013, 01:50 PM
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et

Does not sound to bad, play with tune and I would think you will get a little more out of it. Should be able to get it into the 6s, which should be about right Joe.
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post #5 of 19 (permalink) Old 03-11-2013, 01:54 PM
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et

May also wan't to look at your converter, what is your power curve? I'm thinking a 4500 to 5000 stahl converter?
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post #6 of 19 (permalink) Old 03-11-2013, 04:54 PM
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These things are not simple to determine online. You need to rule out the basics first. Fuel system, ignition timing, and cam timing. Where is the cam degreed at? Are you footbraking it? Is the converter tight? What concerns me is 1/8 mile speed of 92 mph..........it is low for 3250 lbs. The gear is awful steep to me as well........D

'71 Mustang Mach1 370 Truck Motor
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post #7 of 19 (permalink) Old 03-11-2013, 07:42 PM Thread Starter
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92 mph was my most concern

28 X10 slicks

foot braking leaving @ 1500-1800 so I'm gonna say it's tight

cam install straight up power band of cam 4000-6800 comp cam book recommended stall 4500 for 460 / 5000 for 429

ignition timing was @ 38 turn down 36 car slowed 7.30 still @ 92mph I'm using an procomp distributor

aeromotive 2000 fuel pump my plan are to spray NOS after tune car just wanted some seat time with 4.88 that what was in it

Thanks for your output guys
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post #8 of 19 (permalink) Old 10-31-2013, 11:32 PM
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bo545

shifting late?
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post #9 of 19 (permalink) Old 11-01-2013, 07:20 AM
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get those 4.88 out of there! that is to much gear with a c4 trans! more like a 3.73 if nos is going to be used! and tune from there! put a glide in it for real!
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post #10 of 19 (permalink) Old 11-01-2013, 03:03 PM
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Quote:
Originally Posted by bo545 View Post
Finally got a chance to run my car today, disappoint with the outcome. here's the built: 89 mustang 10 point cage all suspension bolt on 8.8 full spool with 4.88 gear. engine 501 stroker home ported C8 with 2.25/1.76 valves. comp solid flat @.050 270/276 .651/641 lift C4 trans 4000 stall. 4.14 crank 6.800 rods ross dome pistons guesting 13.5 compression 1050 dom carb

performance 1/8 mile only

1.49 60ft
7.16
92 mph
Can you give tire size and 1/8 rpms... gearing is hi unless your 33" tires than still big

Drag week quickest street rod
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post #11 of 19 (permalink) Old 11-01-2013, 04:34 PM
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Quote:
Originally Posted by bo545 View Post
Finally got a chance to run my car today, disappoint with the outcome. here's the built: 89 mustang 10 point cage all suspension bolt on 8.8 full spool with 4.88 gear. engine 501 stroker home ported C8 with 2.25/1.76 valves. comp solid flat @.050 270/276 .651/641 lift C4 trans 4000 stall. 4.14 crank 6.800 rods ross dome pistons guesting 13.5 compression 1050 dom carb

performance 1/8 mile only

1.49 60ft
7.16
92 mph
Looks like just some mismatched parts in the combo, 4.88 is way too steep for one. I don't care for the cam specs much either, why would you crutch the exhaust with more duration just to handicap it with less lift (doesn't make much sense does it???) and the split on duration is not enough IMO.

What fuel are you running? I would use either VP C12 or C14 with your compression.

Iron heads LOVE timing 36-38 is more than likely not enough, 42-44 all in is probably gonna be close to what those heads will want.

If you plan on spraying a small shot a 3.73 to 3.90 is where I would start for gearing 4.10-4.30 N/A. (assuming quarter mile here)

Get the gearing changed and put some more timing to it then see where the converter is flashing and have it changed as needed.

Eric Millard
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528ci of N/A power

Circle R Racing Engines

Trick Chassis
Beloit,WI 53511
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"LOL, WE DONT RACE DYNOS" Quoted for the truth!
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post #12 of 19 (permalink) Old 11-02-2013, 10:59 PM
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For reference, when I had the small block with a vortech, aode trans, 26" tall drag radials, 4/10's, over 3300 lbs, mine went a 1.63 and a 7.28 at 97 mph.
If I remember right, Precision said it was a 3300 stall converter.

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post #13 of 19 (permalink) Old 11-10-2013, 12:52 PM
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2 cents

here's mine (2 cents) I would start at the fuel system, 92 MPH is way too slow with the car having a 1.49 60', if you have a 550 to 600 HP motor the holley blue pump is too small to keep up with that HP and a Dominator, so chech pump flow and pressures, then I would check the fuel lines, filters and regulator to make sure all flows well, check jetting on Dommy, with your combo I would jet it at 94 square without P/V's and set timing at 38 to 40* total timing, make a pass and read plugs, the 488 gear is a little steep but not to much for 1/8th mile tracks on the motor! let us know how it goes and good luck friend.
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post #14 of 19 (permalink) Old 11-10-2013, 01:43 PM
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Quote:
Originally Posted by butterbean View Post
here's mine (2 cents) I would start at the fuel system, 92 MPH is way too slow with the car having a 1.49 60', if you have a 550 to 600 HP motor the holley blue pump is too small to keep up with that HP and a Dominator, so chech pump flow and pressures, then I would check the fuel lines, filters and regulator to make sure all flows well, check jetting on Dommy, with your combo I would jet it at 94 square without P/V's and set timing at 38 to 40* total timing, make a pass and read plugs, the 488 gear is a little steep but not to much for 1/8th mile tracks on the motor! let us know how it goes and good luck friend.
Not sure I agree with this totally, I made 695hp running a Holley Blue and never had fuel starvation issues. However I did not run a Dominator. 1000cfm Q-series 4150 flange, 523ci, shifted at 7400, went through the traps at 6300rpm.

Eric Millard
[email protected]

528ci of N/A power

Circle R Racing Engines

Trick Chassis
Beloit,WI 53511
608-313-9197

http://www.trickchassis.com/

"LOL, WE DONT RACE DYNOS" Quoted for the truth!
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post #15 of 19 (permalink) Old 11-10-2013, 01:44 PM
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Updates? Have you changed anything or made any progress?
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