BOV routing back into intake?
BOV routing back into intake? Went to the 1/8th last night and trying to figure something out.
My highest ET was an 8.7 @ 85mph (hose let loose bleeding boost)
My lowest ET was 8.2 at 95mph and my highest mph was a 97mph but only an 8.5
Corvettes with lower whp where running the same mph 96s and 97s but running 7.6 and 7.7 ETs. I realize they have a weight advantage.
My rwhp is 578rwhp/607rwtq
Wondering how I'm matching there mph but off .5?
Curious if my tires just suc (nitto 555rs at 20psi) or I'm loosing too much boost between my 1 to 2 shift and making up some ground in 3rd?
My highest ET was an 8.7 @ 85mph (hose let loose bleeding boost)
My lowest ET was 8.2 at 95mph and my highest mph was a 97mph but only an 8.5
Corvettes with lower whp where running the same mph 96s and 97s but running 7.6 and 7.7 ETs. I realize they have a weight advantage.
My rwhp is 578rwhp/607rwtq
Wondering how I'm matching there mph but off .5?
Curious if my tires just suc (nitto 555rs at 20psi) or I'm loosing too much boost between my 1 to 2 shift and making up some ground in 3rd?
Last edited by maxgee; May 31, 2010 at 07:23 AM.
what were your 60ft times?? i ran 8.6s when i was stock. i have alot less whp than you and am between 6.9-7.2 in the 1/8th mile. it sounds like there is something waaaay off with your ride
Too sum it up gotta get the power on the ground.
At another track I go to on Hoosiers I ran a 7 flat at 100mph
...what where your 60 foots, mph and tires where you running?
Sounds like your are running at Homestead raceway..... 
No track prep what so ever is what I heard....
I'll be seeing you down there soon, I am moving to Homestead FL in 2 weeks LOL
We can be tire spinning turbo V8 buds LOL
No track prep what so ever is what I heard....
I'll be seeing you down there soon, I am moving to Homestead FL in 2 weeks LOL
We can be tire spinning turbo V8 buds LOL
Yeah, my 60s sucked, so did theirs 2.0s. That 1/8 isn't prepped well, it's more for fun than any real competition. I ended up speaking to a local drag racer and he looked at the times and deducted the Vettes are in the neighborhood of 400lbs lighter which equates to about a 1/10 per 100lbs and that I would need to get a better 60 foots to match or beat the times on the vettes.
Too sum it up gotta get the power on the ground.
Too sum it up gotta get the power on the ground.
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If they are making the same power, running the same 60', you should be about 2 tenths slower at the 1/8 with. But you are making more power or rather, think that you are. Just becuase your car makes 500 rwhp peak on a dyno in 4th doesnt really mean much in the drag racing game. It's power under the curve. If your combo is real peaky and falls out of boost between gears, it wont work well in real life.
thanks for all your input.
PM when you get into town.
Which V8 are you coming down with and are you opening up shop down here?
The other problem is that if you lift completely between gears, you are going to instant vacuum. That vacuum could be sucking open your BOV and causing you to bleed all your boost out thru there. Just a thought.
We have a couple of local guys with turbos and stick shifts that insist on trying to do it the hard way. They have had great success running a 2 step on the clutch. This way they dont lift when shifting and the one or 2 pops between gears keeps them in boost better.
The other problem is that if you lift completely between gears, you are going to instant vacuum. That vacuum could be sucking open your BOV and causing you to bleed all your boost out thru there. Just a thought.
The other problem is that if you lift completely between gears, you are going to instant vacuum. That vacuum could be sucking open your BOV and causing you to bleed all your boost out thru there. Just a thought.
https://ls1tech.com/forums/pcm-diagn...l#post13365249
I am going to initially bring my EVO, Turbo Mustang, and maybe the eclipse. I am going to ship my camaro down after I finish our Bolt on Twin kit project.
Also Turbo cars love WOT shifting their trannys however DONOT
My turbo mustang runs 6.80's at 103mph WOT shifting, and if I shift normally it only runs 7.10's at 99. 3 tenths and 4 mph from WOT shifting LOL
I will for sure.
I am going to initially bring my EVO, Turbo Mustang, and maybe the eclipse. I am going to ship my camaro down after I finish our Bolt on Twin kit project.
Also Turbo cars love WOT shifting their trannys however DONOT
My turbo mustang runs 6.80's at 103mph WOT shifting, and if I shift normally it only runs 7.10's at 99. 3 tenths and 4 mph from WOT shifting LOL
I am going to initially bring my EVO, Turbo Mustang, and maybe the eclipse. I am going to ship my camaro down after I finish our Bolt on Twin kit project.
Also Turbo cars love WOT shifting their trannys however DONOT
My turbo mustang runs 6.80's at 103mph WOT shifting, and if I shift normally it only runs 7.10's at 99. 3 tenths and 4 mph from WOT shifting LOL
maybe..... I have not decided to move anything major yet.
I will be doing performance work and tuning on a very small scale at home for whoever needs help though. You would be surprised how many tuning sessions you can get out of me if you bring over some Crown Royal or any other premium beverages LOL.
I will be doing performance work and tuning on a very small scale at home for whoever needs help though. You would be surprised how many tuning sessions you can get out of me if you bring over some Crown Royal or any other premium beverages LOL.
Are you referring to this?
https://ls1tech.com/forums/pcm-diagn...l#post13365249
https://ls1tech.com/forums/pcm-diagn...l#post13365249
What it does is create a controlled backfire situation by alternating spark between cylinders. Auto guys use it mostly to spool the turbo and control WOT launch RPMs. The backfires get the boost up much higher than you can get it on a transbrake or footbrake for launch.
Stick shift cars will use it to build boost, stay in boost between shifts and launch control. I haven't played with the timing portion of mine but I hear that it's very usefull for the stick cars to retard timing which helps build load IIRC.
So you wire a microswitch or some other sort of trigger to the clutch. When you push the clutch pedal, it activates the 2 step which will pop like a rev limiter between shifts. Unlike a factory rev limiter, it cuts spark instead of fuel. Cutting fuel will not give the same effect of keeping the pressure in the charge pipe.
Stick shift cars will use it to build boost, stay in boost between shifts and launch control. I haven't played with the timing portion of mine but I hear that it's very usefull for the stick cars to retard timing which helps build load IIRC.
So you wire a microswitch or some other sort of trigger to the clutch. When you push the clutch pedal, it activates the 2 step which will pop like a rev limiter between shifts. Unlike a factory rev limiter, it cuts spark instead of fuel. Cutting fuel will not give the same effect of keeping the pressure in the charge pipe.
What it does is create a controlled backfire situation by alternating spark between cylinders. Auto guys use it mostly to spool the turbo and control WOT launch RPMs. The backfires get the boost up much higher than you can get it on a transbrake or footbrake for launch.
Stick shift cars will use it to build boost, stay in boost between shifts and launch control. I haven't played with the timing portion of mine but I hear that it's very usefull for the stick cars to retard timing which helps build load IIRC.
So you wire a microswitch or some other sort of trigger to the clutch. When you push the clutch pedal, it activates the 2 step which will pop like a rev limiter between shifts. Unlike a factory rev limiter, it cuts spark instead of fuel. Cutting fuel will not give the same effect of keeping the pressure in the charge pipe.
Stick shift cars will use it to build boost, stay in boost between shifts and launch control. I haven't played with the timing portion of mine but I hear that it's very usefull for the stick cars to retard timing which helps build load IIRC.
So you wire a microswitch or some other sort of trigger to the clutch. When you push the clutch pedal, it activates the 2 step which will pop like a rev limiter between shifts. Unlike a factory rev limiter, it cuts spark instead of fuel. Cutting fuel will not give the same effect of keeping the pressure in the charge pipe.
Putting in an order soon for one.
