11'' or 10'' converter

strokerman · 12-26-2002, 10:11 PM

what would be better a 11'' 2500stall or a 10'' 3000 stall converter on my 69mach1 408W, with full manual c-4, 380ft lb's@3100, srteet driven some track.

Shaggy · 12-26-2002, 10:26 PM

Being predominitly street i would say the 11" with a 408 it will also give more then the advertised 2500 stall speed.

gofastmercury · 12-26-2002, 10:27 PM

Your best ET will happen if you can get it to stall right at peak torque. But it might drive better with 2500. Might even launch better, a little easier on the tires.

one · 12-27-2002, 12:00 PM

" srteet driven some track."

Sounds like a lot of car to be driven on the street all of the time. Bet it is a monster!

But I would go with the 11'. It will make it easier to live with on the street. But realistically with the mods that you have listed, and the car that it is in. I don't think the 10' would hurt your streetablity anymore then you already have. Just make sure to get a HUGE tranny cooler with the horse power you are running and a 10' converter. The temp is really the biggest difference between them.

Rev · 12-30-2002, 12:57 PM

What rear axle ratio? Or did I just miss it? The main consideration for the street is that you want the cruise RPM to be above the actual stall speed. Otherwise you're slipping a lot at cruise with lots of inefficiency and heat generated in the tranny (not good).

Rev

strokerman · 12-30-2002, 03:28 PM

3.50 posi rear.

Rev · 12-30-2002, 05:08 PM

I'd run the 11" 2500 converter. With the amount of low end torque you've got and the 3.50 axle, you won't need too much stall anyway assuming your car is not really heavy.

Rev

strokerman · 12-30-2002, 05:34 PM

Thanks rev, think i'll leave it alone, i was going to bump up the cam a few, mine now is small for a stroker 218 228@.050, lot of torque down low for street.

12-26-2002, 10:11 PM	#1
strokerman Registered Member Join Date: Apr 2002 Posts: 14	11'' or 10'' converter what would be better a 11'' 2500stall or a 10'' 3000 stall converter on my 69mach1 408W, with full manual c-4, 380ft lb's@3100, srteet driven some track.

12-26-2002, 10:26 PM	#2
Shaggy Registered Member Join Date: Feb 1999 Location: Houston,TX Posts: 466	Being predominitly street i would say the 11" with a 408 it will also give more then the advertised 2500 stall speed. __________________ A good plan, violently executed now, is better than a perfect plan next week. George S. Patton, General (1885-1945)

12-26-2002, 10:27 PM	#3
gofastmercury Registered Member Join Date: May 2001 Location: calgary alberta canada Posts: 366	Your best ET will happen if you can get it to stall right at peak torque. But it might drive better with 2500. Might even launch better, a little easier on the tires. __________________ 93LXcopcarSOLD14.3@96 @ 4500ft 2.02 60ft on street tires. my 67 ranchero NOT A 390 ANY MORE! 460! 3.70's cast manifolds, comp cams 262H, performer, 750DP 100K out of 79 F250 NEW(oct20/02)14.58@95mph 2.3 60 ft corrects to:13.86@100 66 merc comet351w, isky roller 600 lift 268/260@.050, vic jr. 700DP, 5000stall, 4.56's c-4, 3400lbs with driver 12.3@110 @ 4000ft 1.69 60 ft corrects to:11.69@115

12-27-2002, 12:00 PM	#4
one Registered Member Join Date: Apr 2002 Location: somewhere outside of nowhere Posts: 82	" srteet driven some track." Sounds like a lot of car to be driven on the street all of the time. Bet it is a monster! But I would go with the 11'. It will make it easier to live with on the street. But realistically with the mods that you have listed, and the car that it is in. I don't think the 10' would hurt your streetablity anymore then you already have. Just make sure to get a HUGE tranny cooler with the horse power you are running and a 10' converter. The temp is really the biggest difference between them. __________________ Be very very quit, I'm hunt'n wabbit.

12-30-2002, 12:57 PM	#5
Rev Registered Member Join Date: Nov 1998 Location: Houston, Tx. Posts: 3,887	Rear axle ratio? What rear axle ratio? Or did I just miss it? The main consideration for the street is that you want the cruise RPM to be above the actual stall speed. Otherwise you're slipping a lot at cruise with lots of inefficiency and heat generated in the tranny (not good). Rev __________________ '66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi. O.B.C. #2 '66 coupe

12-30-2002, 03:28 PM	#6
strokerman Registered Member Join Date: Apr 2002 Posts: 14	10'' or 11'' 3.50 posi rear.

12-30-2002, 05:08 PM	#7
Rev Registered Member Join Date: Nov 1998 Location: Houston, Tx. Posts: 3,887	11" 2500 stall I'd run the 11" 2500 converter. With the amount of low end torque you've got and the 3.50 axle, you won't need too much stall anyway assuming your car is not really heavy. Rev __________________ '66 Coupe, 306, 350-375 HP, C-4, 13.07 e.t., 104.8 mph, 1/4 mi. O.B.C. #2 '66 coupe

12-30-2002, 05:34 PM	#8
strokerman Registered Member Join Date: Apr 2002 Posts: 14	10'' 11'' Thanks rev, think i'll leave it alone, i was going to bump up the cam a few, mine now is small for a stroker 218 228@.050, lot of torque down low for street.

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