Baseline T-Stop set up

hotrod · 01-24-2009, 05:19 PM

Need a little help here guys...Car i bought runs 5.85 very consistent all out....i wanna run S/R 6.40 with this car. I have the throtle stop rpm set @ 4100 and gonna be shifting on time...........How much amount of time do yall think it needs and where should i hit the t-stop in the run??? Thanks guys

Lou SG2340 · 01-24-2009, 07:33 PM

Quote:

Originally Posted by hotrod

Need a little help here guys...Car i bought runs 5.85 very consistent all out....i wanna run S/R 6.40 with this car. I have the throtle stop rpm set @ 4100 and gonna be shifting on time...........How much amount of time do yall think it needs and where should i hit the t-stop in the run??? Thanks guys

Mine is stop on at .20 @ shift at .40 but I am 2200lb 565. Every car is different.

The sooner you can turn the stop on & get in high gear the less time you will be on the stop.

Duane Dagostino · 01-24-2009, 08:07 PM

Lou...your on at .200 or .020...just asking..thanx

63corvette · 01-24-2009, 11:30 PM

Another part of the equation is where your starting line chip is.
I run .07 stop on shift to high at 1.0 with a 565 BBC with std Brodix BBC heads.
Starting line chip of 5000 to 5600 depending on what the adjusted altitude is.
Good Luck with the setup. It takes a few passes to decide just what the car likes and they are ALL different.
My 2 Cents

Jeff Beckman · 01-25-2009, 01:21 AM

With the limited amount of time you are trying to loose, dont wad the tire up and put the car flat on its nose. It will not recover the same as a car with a little more zoom. I might try leaving soft, say 5000 RPM and shift to high gear at .01, that might scrub most of your half second of stop time. Then raise your stop RPM and see what it runs. As LITTLE stop as early as possible, be gentle on the load and unload of the suspension for repeatability. That be maybe my 2 non cents worth. Or you could ask the HITTER! Sorry Dude, wherever you are, but you brought this fun on yourself.

CBS · 01-25-2009, 09:14 AM

ouch!

VanPelt · 01-25-2009, 10:00 AM

Quote:

Originally Posted by Jeff Beckman

With the limited amount of time you are trying to loose, dont wad the tire up and put the car flat on its nose. It will not recover the same as a car with a little more zoom. I might try leaving soft, say 5000 RPM and shift to high gear at .01, that might scrub most of your half second of stop time. Then raise your stop RPM and see what it runs. As LITTLE stop as early as possible, be gentle on the load and unload of the suspension for repeatability. That be maybe my 2 non cents worth. Or you could ask the HITTER! Sorry Dude, wherever you are, but you brought this fun on yourself.

~~~~~~~~~~~~~~~~~~~~~~~~~~

Another well said statement for the day Jeff! This is more fun that a comedy club. Keep it up.
Cheers

Lou SG2340 · 01-25-2009, 05:56 PM

Quote:

Originally Posted by duane 1821

Lou...your on at .200 or .020...just asking..thanx

Sorry I was thinking. .020 & .040

hotrod · 01-26-2009, 06:41 AM

Alright this is what i've come up with so far.I have a gas carb set up, I leave @ 4000 chip,T-stop RPM about 4200,T-stop comes on @ .30 ,shifts @ .40,T-stop goes off @ .80 .......So do yall think that sounds about right ?? Is all that to soon in the run??

63corvette · 01-26-2009, 11:10 AM

My opinion would be to chip it higher.
Unless you have a 1000 HP plus to launch the car I do not think 4000 chip is nearly enough to cut the light and get the momentum started.
I usually chip mine 5000 to 5600 depending on the adjusted altitude but I do bring the TS on at .07.
My car only weighs 2165 with me in it and it takes that to get it off and going.
I also am of the opinion that about 1 sec total in the TS timer is a minimum.
Most cars need that amount of time to settle down and then let it come back off the stop to full power.
Just a suggestion.
Track Time is the only way to see what the car really likes.
Good Luck

01-24-2009, 05:19 PM	#1
hotrod Junior Member Join Date: Oct 2008 Location: Walterboro S.C. Posts: 11 Likes: 0 Liked 0 Times in 0 Posts	Baseline T-Stop set up Need a little help here guys...Car i bought runs 5.85 very consistent all out....i wanna run S/R 6.40 with this car. I have the throtle stop rpm set @ 4100 and gonna be shifting on time...........How much amount of time do yall think it needs and where should i hit the t-stop in the run??? Thanks guys

01-24-2009, 08:07 PM	#3
Duane Dagostino Junior Member Join Date: Aug 2005 Location: Fl. Posts: 74 Likes: 0 Liked 0 Times in 0 Posts	Re: Baseline T-Stop set up Lou...your on at .200 or .020...just asking..thanx

01-24-2009, 11:30 PM	#4
63corvette Senior Member Join Date: Mar 2007 Location: Canyon, Tx Posts: 551 Likes: 127 Liked 353 Times in 102 Posts	Re: Baseline T-Stop set up Another part of the equation is where your starting line chip is. I run .07 stop on shift to high at 1.0 with a 565 BBC with std Brodix BBC heads. Starting line chip of 5000 to 5600 depending on what the adjusted altitude is. Good Luck with the setup. It takes a few passes to decide just what the car likes and they are ALL different. My 2 Cents

01-25-2009, 01:21 AM	#5
Jeff Beckman Member Join Date: Nov 2007 Location: Columbus Ohio Posts: 308 Likes: 0 Liked 0 Times in 0 Posts	Re: Baseline T-Stop set up With the limited amount of time you are trying to loose, dont wad the tire up and put the car flat on its nose. It will not recover the same as a car with a little more zoom. I might try leaving soft, say 5000 RPM and shift to high gear at .01, that might scrub most of your half second of stop time. Then raise your stop RPM and see what it runs. As LITTLE stop as early as possible, be gentle on the load and unload of the suspension for repeatability. That be maybe my 2 non cents worth. Or you could ask the HITTER! Sorry Dude, wherever you are, but you brought this fun on yourself. __________________ Jeff Beckman 318J ET, SG 318T SC

01-25-2009, 09:14 AM	#6
CBS VIP Member Join Date: Oct 2002 Location: Commerce, Mi Posts: 1,387 Likes: 1 Liked 4 Times in 2 Posts	Re: Baseline T-Stop set up ouch!

01-26-2009, 06:41 AM	#9
hotrod Junior Member Join Date: Oct 2008 Location: Walterboro S.C. Posts: 11 Likes: 0 Liked 0 Times in 0 Posts	Re: Baseline T-Stop set up Alright this is what i've come up with so far.I have a gas carb set up, I leave @ 4000 chip,T-stop RPM about 4200,T-stop comes on @ .30 ,shifts @ .40,T-stop goes off @ .80 .......So do yall think that sounds about right ?? Is all that to soon in the run??

01-26-2009, 11:10 AM	#10
63corvette Senior Member Join Date: Mar 2007 Location: Canyon, Tx Posts: 551 Likes: 127 Liked 353 Times in 102 Posts	Re: Baseline T-Stop set up My opinion would be to chip it higher. Unless you have a 1000 HP plus to launch the car I do not think 4000 chip is nearly enough to cut the light and get the momentum started. I usually chip mine 5000 to 5600 depending on the adjusted altitude but I do bring the TS on at .07. My car only weighs 2165 with me in it and it takes that to get it off and going. I also am of the opinion that about 1 sec total in the TS timer is a minimum. Most cars need that amount of time to settle down and then let it come back off the stop to full power. Just a suggestion. Track Time is the only way to see what the car really likes. Good Luck