trans low gear, stall speed input.need help

TinSoldier 3215 · 12-16-2009, 09:49 PM

motor is 400 sm block running compression 12/5/1,trans haves a 211 low gear,8inch converter with a 5,000 stall,rear gear is 488 on a 29/9/15,weight of car is 3150,and shifting at 6500 and going thought the traps at 6800,cam is Q.50 int/236 and exh/242 best et is 10.51 at 125.12 off trans brake. need help or input on stall speed was told that I need a 4,000 stall would really not like to waste money on wrong stall speed. we are changing cams over the winter and going with a Q.50 int/249 and exh/262. thanks for help!!!

Dennis Paz · 12-16-2009, 09:59 PM

Converter stall is fine but 211 low is a bit steep. put a taller low gear in it and let it run on the torque further down the track. Also way less volatile on starting line.

Dennis Paz · 12-16-2009, 10:02 PM

I have an ati straight cut 1.90 that has like 5 passes I might trade for a 2.11.

TinSoldier 3215 · 12-16-2009, 10:14 PM

Hey Dennis, what do you mean go to a taller low gear? we have a 176 low gear.and less volatile on starting line what do you mean?

Dennis Paz · 12-16-2009, 10:27 PM

Your post says
TRANS HAVES A 211

TinSoldier 3215 · 12-16-2009, 10:31 PM

yes we have a 211 low gear in the car now. and a 176 spare.

Dennis Paz · 12-16-2009, 10:37 PM

Bracket car?
I have a 68 nova that had a mild 400 that ran 11.50 with a 1.76 and tried a 1.96 and all that did was made the car spin on marginal conditons. Car was maybe a tenth faster on a killer track but would not repeat when track whent away(9x30 tire).

TinSoldier 3215 · 12-16-2009, 10:41 PM

yes bracket car.

283SS · 12-17-2009, 02:41 AM

tell us more about the motor please and with a 400 ci smaill block u dont need that much first gear I could say u my need to go 5500 on your convertor but need more into on what in the motor before i say that

TinSoldier 3215 · 12-17-2009, 10:46 PM

Hey 283, what do you need to know about the motor?

12-16-2009, 09:49 PM	#1
TinSoldier 3215 Member Join Date: Jul 2009 Location: Bulington, Ky Posts: 359 Likes: 0 Liked 6 Times in 5 Posts	trans low gear, stall speed input.need help motor is 400 sm block running compression 12/5/1,trans haves a 211 low gear,8inch converter with a 5,000 stall,rear gear is 488 on a 29/9/15,weight of car is 3150,and shifting at 6500 and going thought the traps at 6800,cam is Q.50 int/236 and exh/242 best et is 10.51 at 125.12 off trans brake. need help or input on stall speed was told that I need a 4,000 stall would really not like to waste money on wrong stall speed. we are changing cams over the winter and going with a Q.50 int/249 and exh/262. thanks for help!!!

12-16-2009, 09:59 PM	#2
Dennis Paz Junior Member Join Date: Apr 2005 Location: stockton ca Posts: 97 Likes: 0 Liked 5 Times in 3 Posts	Re: trans low gear, stall speed input.need help Converter stall is fine but 211 low is a bit steep. put a taller low gear in it and let it run on the torque further down the track. Also way less volatile on starting line.

12-16-2009, 10:02 PM	#3
Dennis Paz Junior Member Join Date: Apr 2005 Location: stockton ca Posts: 97 Likes: 0 Liked 5 Times in 3 Posts	Re: trans low gear, stall speed input.need help I have an ati straight cut 1.90 that has like 5 passes I might trade for a 2.11.

12-16-2009, 10:14 PM	#4
TinSoldier 3215 Member Join Date: Jul 2009 Location: Bulington, Ky Posts: 359 Likes: 0 Liked 6 Times in 5 Posts	Re: trans low gear, stall speed input.need help Hey Dennis, what do you mean go to a taller low gear? we have a 176 low gear.and less volatile on starting line what do you mean?

12-16-2009, 10:27 PM	#5
Dennis Paz Junior Member Join Date: Apr 2005 Location: stockton ca Posts: 97 Likes: 0 Liked 5 Times in 3 Posts	Re: trans low gear, stall speed input.need help Your post says TRANS HAVES A 211

12-16-2009, 10:31 PM	#6
TinSoldier 3215 Member Join Date: Jul 2009 Location: Bulington, Ky Posts: 359 Likes: 0 Liked 6 Times in 5 Posts	Re: trans low gear, stall speed input.need help yes we have a 211 low gear in the car now. and a 176 spare.

12-16-2009, 10:37 PM	#7
Dennis Paz Junior Member Join Date: Apr 2005 Location: stockton ca Posts: 97 Likes: 0 Liked 5 Times in 3 Posts	Re: trans low gear, stall speed input.need help Bracket car? I have a 68 nova that had a mild 400 that ran 11.50 with a 1.76 and tried a 1.96 and all that did was made the car spin on marginal conditons. Car was maybe a tenth faster on a killer track but would not repeat when track whent away(9x30 tire).

12-16-2009, 10:41 PM	#8
TinSoldier 3215 Member Join Date: Jul 2009 Location: Bulington, Ky Posts: 359 Likes: 0 Liked 6 Times in 5 Posts	Re: trans low gear, stall speed input.need help yes bracket car.

12-17-2009, 02:41 AM	#9
283SS Junior Member Join Date: Dec 2007 Posts: 35 Likes: 0 Liked 0 Times in 0 Posts	Re: trans low gear, stall speed input.need help tell us more about the motor please and with a 400 ci smaill block u dont need that much first gear I could say u my need to go 5500 on your convertor but need more into on what in the motor before i say that

12-17-2009, 10:46 PM	#10
TinSoldier 3215 Member Join Date: Jul 2009 Location: Bulington, Ky Posts: 359 Likes: 0 Liked 6 Times in 5 Posts	Re: trans low gear, stall speed input.need help Hey 283, what do you need to know about the motor?