Elementary question for stick cars

joespanova · 10-30-2017, 09:23 PM

I wanna see how your "launch" technique differs from mine.
When you get on the 2 step are you "full throttle" or part throttle , then nail it when you dump the clutch?
Either way you can still get on the 2 step , however one way the engine's drunk with fuel ( as in 2--4's ) and the other isn't...........but the minute you come of the 2 step ( FULL THROTTLE OPTION ) you're already WFO.
The cars gotta launch harder?

older racer · 10-30-2017, 09:32 PM

after stage bulbs are lit, full throttle on two step., this lets engine clean out extra fuel and launches cleaner.

Ed Carpenter · 10-30-2017, 11:56 PM

WO at the hit. We leave at 7600 shift at 8600.

Rory McNeil · 10-31-2017, 12:18 AM

On my cars, I normally launch at WOT on the 2 step, after my 2nd stage light is on, I`ll bring the RPM up to about 2500-3000 RPM, and then foot to the floor when my 1rst amber lights up. Depending on conditions my 2 step is usually at 6600 on the low side, and it always hits the limiter before the last amber.
To me, waiting for the clutch drop, and then going WOT just introduces the chance for too much variability, not really sure why you say it`s "gotta launch harder".

older racer · 10-31-2017, 03:14 AM

ok, I use to wait till top bulb came on then matted throttle, the car seemed to bog some through first gear. I was told to matt it before tree came down, this would clean out the extra fuel in manifold make for a cleaner launch, I tried it, picked up .02 in sixty foot, worth .04 at end of track. no more bogging ! just something to consider.

joespanova · 10-31-2017, 07:08 AM

ok ,
Thanks guys. I just felt 2 750's WFO on the 2 step will be dumping a lot of fuel in the manifold.........
As I said.......... I am part throttle on the 2 step then mat the throttle WHEN I LET THE CLUTCH OUT. I don't think this is the best way.
What I was saying is , I believe the car will leave HARDER WFO on the 2 step............as opposed to what I was doing.

Dave Casey · 10-31-2017, 12:55 PM

I have 2 stick shift stockers, one I leave on the chip but at part throttle , the other on the chip full throttle , it depends on alot of variables. You gotta just try it at the track

10-30-2017, 09:23 PM	#1
joespanova Senior Member Join Date: Jun 2011 Location: Ga. Posts: 521 Likes: 7 Liked 13 Times in 11 Posts	Elementary question for stick cars I wanna see how your "launch" technique differs from mine. When you get on the 2 step are you "full throttle" or part throttle , then nail it when you dump the clutch? Either way you can still get on the 2 step , however one way the engine's drunk with fuel ( as in 2--4's ) and the other isn't...........but the minute you come of the 2 step ( FULL THROTTLE OPTION ) you're already WFO. The cars gotta launch harder?

10-30-2017, 09:32 PM	#2
older racer Member Join Date: Aug 2010 Posts: 204 Likes: 2 Liked 57 Times in 23 Posts	Re: Elementary question for stick cars after stage bulbs are lit, full throttle on two step., this lets engine clean out extra fuel and launches cleaner.

10-30-2017, 11:56 PM	#3
Ed Carpenter Live Reporter Join Date: May 2006 Location: Dripping Springs, Tx Posts: 2,698 Likes: 185 Liked 503 Times in 126 Posts	Re: Elementary question for stick cars WO at the hit. We leave at 7600 shift at 8600. __________________ Ed Carpenter 2005 Chevy Cobalt A/SM Race Engine Development

10-31-2017, 12:18 AM	#4
Rory McNeil VIP Member Join Date: Jun 2007 Location: from Vancouver BC Canada, now in Nova Scotia Posts: 1,257 Likes: 245 Liked 939 Times in 259 Posts	Re: Elementary question for stick cars On my cars, I normally launch at WOT on the 2 step, after my 2nd stage light is on, I`ll bring the RPM up to about 2500-3000 RPM, and then foot to the floor when my 1rst amber lights up. Depending on conditions my 2 step is usually at 6600 on the low side, and it always hits the limiter before the last amber. To me, waiting for the clutch drop, and then going WOT just introduces the chance for too much variability, not really sure why you say it`s "gotta launch harder". __________________ NHRA 6390 STK M/S 85 Mustang

10-31-2017, 03:14 AM	#5
older racer Member Join Date: Aug 2010 Posts: 204 Likes: 2 Liked 57 Times in 23 Posts	Re: Elementary question for stick cars ok, I use to wait till top bulb came on then matted throttle, the car seemed to bog some through first gear. I was told to matt it before tree came down, this would clean out the extra fuel in manifold make for a cleaner launch, I tried it, picked up .02 in sixty foot, worth .04 at end of track. no more bogging ! just something to consider.

10-31-2017, 07:08 AM	#6
joespanova Senior Member Join Date: Jun 2011 Location: Ga. Posts: 521 Likes: 7 Liked 13 Times in 11 Posts	Re: Elementary question for stick cars ok , Thanks guys. I just felt 2 750's WFO on the 2 step will be dumping a lot of fuel in the manifold......... As I said.......... I am part throttle on the 2 step then mat the throttle WHEN I LET THE CLUTCH OUT. I don't think this is the best way. What I was saying is , I believe the car will leave HARDER WFO on the 2 step............as opposed to what I was doing.

10-31-2017, 12:55 PM	#7
Dave Casey VIP Member Join Date: Dec 2002 Location: Hampden, MA Posts: 1,151 Likes: 198 Liked 581 Times in 127 Posts	Re: Elementary question for stick cars I have 2 stick shift stockers, one I leave on the chip but at part throttle , the other on the chip full throttle , it depends on alot of variables. You gotta just try it at the track __________________ Dave Casey 1330 STK