My first EVER C6 T-brake Launches! - 460 Ford Forum
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Old 02-18-2014, 01:53 AM
xoliex xoliex is offline
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xoliex First On Race Day
Default My first EVER C6 T-brake Launches!

well as soon as i got my 73 stang with a 521 into the 10's it really got hard to shift a tko600 and i actually got embarrassed on New Year's Day racing missing 2nd gear on time trails so i went ahead and installed a Dynamic Racing c6 warhorse with t-brake.

the best run with a stick shift was 10.78 and i was expecting an improvement to 10.48 but my converter is too loose. my max tq is at 4600 and my converter is blowing past that. its flashing to 5200rpms and between shifts the rpms only go down to 5500rpms and not to mention i shift at 6400rpms so its only max coupling for 900rpms. plus, with slippage accounted for now, the 4.11s were too much gear, on a chassis dyno it maxed out at 122mph at 6600rpms so i knew i had to go back to my 3.70 gears and that'll just make it flash even more. at the track i was trapping at 124.xx mph and with no slippage i should be at 5530rpms but i was at 6300rpms which is already 400rpms past my max hp. i'd like to tighten up the converter up to where it'll flash to 4000-4500rpms and i can pull at least 2000rpms with max coupling.

here is a clip of how loose my converter is: (center of tach is 5000rpms)


and here is a clip on how the fastest pass went:


i now gotta take out the converter and have it retweaked and finally install my double adjustable shocks in the front. i was using calvert 90/10's for the longest time and coil-over single adjustable shocks in the back. i got suspension work to do.

Last edited by xoliex; 02-18-2014 at 02:01 AM.
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Old 02-18-2014, 06:10 AM
bob460 bob460 is offline
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You want to be shifting 500rpm past peak power and crossing the line 500rpm past peak power.

Best converter for your torque peak is 200rpm above it, so a 4800rpm converter is what you really want IMO.

What size rear tire you running?

Sounds nice from start to finish, good work man.

Cheers, Bob
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Old 02-18-2014, 08:27 AM
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BOSS 429 BOSS 429 is offline
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GOOD LOOKING CAR, ALWAYS LOVE THE 71 THRU 73 MUSTANGS















WISH I HAD TIME FOR MY 71
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Old 02-18-2014, 03:39 PM
xoliex xoliex is offline
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Quote:
Originally Posted by BOSS 429 View Post
GOOD LOOKING CAR, ALWAYS LOVE THE 71 THRU 73 MUSTANGS















WISH I HAD TIME FOR MY 71
thanks rich, i still like to drive this thing to work too.
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Old 02-27-2014, 01:56 PM
xoliex xoliex is offline
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Quote:
Originally Posted by bob460 View Post
You want to be shifting 500rpm past peak power and crossing the line 500rpm past peak power.

Best converter for your torque peak is 200rpm above it, so a 4800rpm converter is what you really want IMO.

What size rear tire you running?

Sounds nice from start to finish, good work man.

Cheers, Bob
well the converter is at the builder and he says he will lower stall to 4200-4400 and it'll flash to about 4600-4800 which sounds right about perfect.

i have been running a 28 inch tall tire since i started racing but i'm ready for a taller tire so i can tuck the tire into the fender well and not have to worry about rpms but as long as i cross the line at least at 6000rpms.
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Old 03-31-2014, 01:41 PM
xoliex xoliex is offline
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well the converter is back and ready to go and the 29.5's are on the car but now i gotta wait for a non raining saturday to go test..
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