New Personal Best 12.1@113
- Thread starter Sean Krupa
- Start date
Gnocide
turbo game burt reynolds
Re: Shooting for 11's tomorrow! VIDEO
Re: Shooting for 11's tomorrow! VIDEO
im thinking leave the 2 step alone and go back to higher boost launches period
dont worry so much about rpm and 2 step
- you will run out of boost before the tach runs out of rpm.
Re: Shooting for 11's tomorrow! VIDEO
im thinking leave the 2 step alone and go back to higher boost launches period
dont worry so much about rpm and 2 step
- you will run out of boost before the tach runs out of rpm.
Sean Krupa
Moderator
Re: Shooting for 11's tomorrow! VIDEO
Re: Shooting for 11's tomorrow! VIDEO
I'm also thinking according to Matt (e95), try without the limiters. I know last year I was running mid-high 12's stock converter with the limiters. When I took them out last pass, I ran 12.3. So I might try that one pass. Also Matt said, as he was told, the way the T-case works, if the rear doesn't spin the front shouldn't. So in theory, if I don't have limiters and the weight transfers to the rear, the rear shouldnt spin and the front shouldnt either.....
So far I have-
-Leave 2-step same, leave with higher boost, hoping it doesn't leave with a cloud of smoke.
-Adjust my limiters lower to keep the front down for more traction
-Try without limiters
-Lower tire pressure a bit more
Re: Shooting for 11's tomorrow! VIDEO
I'm also thinking according to Matt (e95), try without the limiters. I know last year I was running mid-high 12's stock converter with the limiters. When I took them out last pass, I ran 12.3. So I might try that one pass. Also Matt said, as he was told, the way the T-case works, if the rear doesn't spin the front shouldn't. So in theory, if I don't have limiters and the weight transfers to the rear, the rear shouldnt spin and the front shouldnt either.....
So far I have-
-Leave 2-step same, leave with higher boost, hoping it doesn't leave with a cloud of smoke.
-Adjust my limiters lower to keep the front down for more traction
-Try without limiters
-Lower tire pressure a bit more
TYTILIDIE
METH HEAD
Re: Shooting for 11's tomorrow! VIDEO
Re: Shooting for 11's tomorrow! VIDEO
60' - 1.57 tire psi was at 35 on all four, I do have coil overs.
Launch RPM was 3925
Launch boost was 17psi and I had very little wheel spin but bout shit when it took off, definitely the best launch I have ever felt in my truck.
Re: Shooting for 11's tomorrow! VIDEO
60' - 1.57 tire psi was at 35 on all four, I do have coil overs.
Launch RPM was 3925
Launch boost was 17psi and I had very little wheel spin but bout shit when it took off, definitely the best launch I have ever felt in my truck.
Re: Shooting for 11's tomorrow!
Re: Shooting for 11's tomorrow!
I believe he said a 3200 stall converter.
Re: Shooting for 11's tomorrow!
I believe he said a 3200 stall converter.
Sean Krupa
Moderator
Re: Shooting for 11's tomorrow! VIDEO
Re: Shooting for 11's tomorrow! VIDEO
Mike, I dont know how you managed to hook with all that boost. You can see in the video I'm spinning at only 5-6. I dont get it.
Re: Shooting for 11's tomorrow! VIDEO
Mike, I dont know how you managed to hook with all that boost. You can see in the video I'm spinning at only 5-6. I dont get it.
Sean Krupa
Moderator
Re: Shooting for 11's tomorrow! VIDEO
Re: Shooting for 11's tomorrow! VIDEO
New. I actually have nice BFGs in the front, and Sumitomos in the rear.
Re: Shooting for 11's tomorrow! VIDEO
New. I actually have nice BFGs in the front, and Sumitomos in the rear.
It's just a six
Super Member
Re: Shooting for 11's tomorrow! VIDEO
Re: Shooting for 11's tomorrow! VIDEO
Was the track cold? What was the temperature for the day?
Re: Shooting for 11's tomorrow! VIDEO
Was the track cold? What was the temperature for the day?
Sean Krupa
Moderator
Re: Shooting for 11's tomorrow! VIDEO
Re: Shooting for 11's tomorrow! VIDEO
Track was cold, Was 55* outside.
Re: Shooting for 11's tomorrow! VIDEO
Track was cold, Was 55* outside.
Smkur50
SYTY Fleet owner
Re: Shooting for 11's tomorrow! VIDEO
Re: Shooting for 11's tomorrow! VIDEO
The difference I had with sumitomo traction and nitto drags on a RWD car was night and day. You seriously need to ditch the cheap hard sumitomos for something stickier. Your obviously traction limited if your spinning the tires at 6 psi.
Re: Shooting for 11's tomorrow! VIDEO
The difference I had with sumitomo traction and nitto drags on a RWD car was night and day. You seriously need to ditch the cheap hard sumitomos for something stickier. Your obviously traction limited if your spinning the tires at 6 psi.
Sean Krupa
Moderator
Re: Shooting for 11's tomorrow! VIDEO
Re: Shooting for 11's tomorrow! VIDEO
Going back to the Track tomorrow. I'm not giving up just yet with my goal. So far I've adjusted the 2step to 3200rpm for some more boost on the line and lowered the tire pressure in the rear a bit. I will also adjust my front limiters to keep the front down. Other than that I think it'll do what I want.
Re: Shooting for 11's tomorrow! VIDEO
Going back to the Track tomorrow. I'm not giving up just yet with my goal. So far I've adjusted the 2step to 3200rpm for some more boost on the line and lowered the tire pressure in the rear a bit. I will also adjust my front limiters to keep the front down. Other than that I think it'll do what I want.
wildphil
I Love My Ty's
Re: Shooting for 11's tomorrow! VIDEO
Re: Shooting for 11's tomorrow! VIDEO
Be careful. If you are already spinning at lower boost. A higher boost launch could really smoke the tires.
But lowering the tire pressure to about 24 or 26 may help with the spinning issue. So your plan could work out OK. With the lower tire pressure you can adjust your boost launch psi if you do spin.
You could also try a little more timing. But watch for KR. Good luck. You will get there.
Re: Shooting for 11's tomorrow! VIDEO
Be careful. If you are already spinning at lower boost. A higher boost launch could really smoke the tires.
But lowering the tire pressure to about 24 or 26 may help with the spinning issue. So your plan could work out OK. With the lower tire pressure you can adjust your boost launch psi if you do spin.
You could also try a little more timing. But watch for KR. Good luck. You will get there.
TYTILIDIE
METH HEAD
Re: Shooting for 11's tomorrow! VIDEO
Re: Shooting for 11's tomorrow! VIDEO
Maybe it's the difference between HTRZ and HTRZIII's?
Honestly the only problems launching my truck has ever had have been when I had Michelin PS2's. I had 285's on the front and 335's on the rear and it was like launching on butter. My current tires are 285 rear and 245 up front and they are on Z06 wheels.
Re: Shooting for 11's tomorrow! VIDEO
Maybe it's the difference between HTRZ and HTRZIII's?
Honestly the only problems launching my truck has ever had have been when I had Michelin PS2's. I had 285's on the front and 335's on the rear and it was like launching on butter. My current tires are 285 rear and 245 up front and they are on Z06 wheels.
It's just a six
Super Member
Re: Shooting for 11's tomorrow! VIDEO
Re: Shooting for 11's tomorrow! VIDEO
An old trick to do while @ the track, crank down the torsion bar tension. Don't go too crazy though.
This will keep the front end down more.
Just remember how many turns you loosened the bolts, then when you are done racing, crank it back up to the original height you had by counting the same amount of turns you had loosened the bolts.
Re: Shooting for 11's tomorrow! VIDEO
An old trick to do while @ the track, crank down the torsion bar tension. Don't go too crazy though.
This will keep the front end down more.
Just remember how many turns you loosened the bolts, then when you are done racing, crank it back up to the original height you had by counting the same amount of turns you had loosened the bolts.
It's just a six
Super Member
Re: Shooting for 11's tomorrow! VIDEO
Re: Shooting for 11's tomorrow! VIDEO
Oooppps
Re: Shooting for 11's tomorrow! VIDEO
Oooppps
It's just a six
Super Member
Re: Shooting for 11's tomorrow! VIDEO
Re: Shooting for 11's tomorrow! VIDEO
55* is pretty cold & harder to hook on.:2cents:
Re: Shooting for 11's tomorrow! VIDEO
55* is pretty cold & harder to hook on.:2cents:
Sean Krupa
Moderator
Re: Shooting for 11's tomorrow! VIDEO
Re: Shooting for 11's tomorrow! VIDEO
I adjusted the limiters a bit more. Took a test launch with the 2step now at 3200rpms and can reach 9-10psi and took off. Spun a little, so I lowered the front psi to 25psi (all 4 at 25psi) and will try again in a bit.
Tomorrow will be around 75* and I'm sure the track will be hotter. So the higher temp combined with track compound should be good enough.
Re: Shooting for 11's tomorrow! VIDEO
I adjusted the limiters a bit more. Took a test launch with the 2step now at 3200rpms and can reach 9-10psi and took off. Spun a little, so I lowered the front psi to 25psi (all 4 at 25psi) and will try again in a bit.
Tomorrow will be around 75* and I'm sure the track will be hotter. So the higher temp combined with track compound should be good enough.
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