How to build boost of the line? Stalled automatic
How to build boost of the line? Stalled automatic I raced a gto the other day I think I should have beat a lot worse than I did. I kind of gave him the hit because we were lined up close and I did not want to chance it, but also feel like I could launch a lot harder if I could build boost off the line.... Looking for some ways to build boost of the line and somewhat quickly if possible?
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Install 2step then get in the driveway and figure out at what RPM does the car start to push through the brakes, then set the 2 step a couple hundred RPM before this. Example if you can foot brake the car to 3000 without it pushing but it starts to push at 3100-3200. Then set the 2 step for 28-2900, get on the footbrake and activate the 2step hold WOT to see if it holds. Like I said these are examples but some trial and error till you can get the car to a set RPM at WOT without rolling thru brakes is when you will really start to see some boost. However some of this will be dictated by your converter setup!
Install 2step then get in the driveway and figure out at what RPM does the car start to push through the brakes, then set the 2 step a couple hundred RPM before this. Example if you can foot brake the car to 3000 without it pushing but it starts to push at 3100-3200. Then set the 2 step for 28-2900, get on the footbrake and activate the 2step hold WOT to see if it holds. Like I said these are examples but some trial and error till you can get the car to a set RPM at WOT without rolling thru brakes is when you will really start to see some boost. However some of this will be dictated by your converter setup!
TECH Regular
Joined: Oct 2014
Posts: 431
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TECH Regular
Joined: Oct 2014
Posts: 431
Likes: 2
From: the border
On my car, I can see 3300 against the brakes. Any more throttle and the car will spin the rear tires. I could sit there for 5 minutes and never get past 100kpa. All I get is hot Trans fluid.
With the two step, after adjusting timing and fuel, I now get 5 psi at 2800 rpm. And the car isn't trying to "leave". Which allows the suspension to have a chance at working.
Still not enough though, so a PTC 9.5 is on the way. If I can get to closer to 4000 and 10 psi, the car should hit the 1.3x range in 60ft.
I'm with the OP. I got rid of the N2O bs on my car and wouldn't consider it again. When I see many turbo cars hitting bottom 1.3's on the foot brake, there is no need to spray too.
Ron
With the two step, after adjusting timing and fuel, I now get 5 psi at 2800 rpm. And the car isn't trying to "leave". Which allows the suspension to have a chance at working.
Still not enough though, so a PTC 9.5 is on the way. If I can get to closer to 4000 and 10 psi, the car should hit the 1.3x range in 60ft.
I'm with the OP. I got rid of the N2O bs on my car and wouldn't consider it again. When I see many turbo cars hitting bottom 1.3's on the foot brake, there is no need to spray too.
Ron
TECH Regular
Joined: Oct 2014
Posts: 431
Likes: 2
From: the border
On my car, I can see 3300 against the brakes. Any more throttle and the car will spin the rear tires. I could sit there for 5 minutes and never get past 100kpa. All I get is hot Trans fluid.
With the two step, after adjusting timing and fuel, I now get 5 psi at 2800 rpm. And the car isn't trying to "leave". Which allows the suspension to have a chance at working.
Still not enough though, so a PTC 9.5 is on the way. If I can get to closer to 4000 and 10 psi, the car should hit the 1.3x range in 60ft.
I'm with the OP. I got rid of the N2O bs on my car and wouldn't consider it again. When I see many turbo cars hitting bottom 1.3's on the foot brake, there is no need to spray too.
Ron
With the two step, after adjusting timing and fuel, I now get 5 psi at 2800 rpm. And the car isn't trying to "leave". Which allows the suspension to have a chance at working.
Still not enough though, so a PTC 9.5 is on the way. If I can get to closer to 4000 and 10 psi, the car should hit the 1.3x range in 60ft.
I'm with the OP. I got rid of the N2O bs on my car and wouldn't consider it again. When I see many turbo cars hitting bottom 1.3's on the foot brake, there is no need to spray too.
Ron
Ud think his car would leave hard as is,..