thoughts on shifting into neutral after a pass
thoughts on shifting into neutral after a pass This came up on another forum on the topic of reverse vs forward shift pattern. What are your thoughts of putting the car into neutral after a pass?
TECH Regular
Joined: Aug 2003
Posts: 453
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It is supposed to be easier on the motor, but what if you stall the car when the revs fall from 6000+ to 800? Then you'll see how much those leg presses you have been doing helped! Bench presses too, for the steering!
Leaving it in gear gives you engine braking too.
Al
Leaving it in gear gives you engine braking too.
Al
Bad idea, that will cause an overspeed condition with the drum, good way to turn yout transmission into a grenade.
Unless you have a specific tranny that has 2 neutrals, don't do it. Nothing to be gained by doiing so anyway.
Unless you have a specific tranny that has 2 neutrals, don't do it. Nothing to be gained by doiing so anyway.
I learned that the hard way. First time we found a straight piece of round wire in the pan. Took a couple of minutes to figure out it used to be a snap ring. 
Now I have one with "clean neutral". The second neutral.
Now I have one with "clean neutral". The second neutral.
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Verdad Gallardo I'm gonna be at about 8500, but I am putting an accusump in the next build, moroso deep pan, and I'll run it a 1/2 qt high just to be safe. With oil squirters and whatnot in the bottom end, I see no reason not to run it a touch high. Crank's gonna be a little short on this one too so the windage won't be as much a concern.
Teching In
Joined: Mar 2010
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From: here
I didn't realize all that other stuff though...I guess I'll start leaving it in gear from now on.
6 & 8 Second Club
Joined: Aug 2006
Posts: 2,284
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From: Illinois, RT 66 dragway area
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I just wrote up a big explanation and my net crashed.
So I will just mention, the trans pump is turned by the engine.
You do not want to cut fluid from a trans after you're crossing the line.
I spin 7600-9300, and I would never dream of blocking oil flow to the engine, so why do it to the trans.
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is there a specific way that yall drive them? i've searched and keep getting different answers on the correct way to drive rmvb trannys. a good amount of the threads i read said the same thing about grenading the tranny by putting itin nuetral
I never downshift mine until I'm down to about 15 mph, then I'll throw it in 2nd or 1st. At the track, I do the burnout in 2nd, stop the car, rev it to clean the plugs, put back in 1st, then stage run thru the gears, once I'm done I just take my foot off the gas (unless I'm clicking the key to read plugs) then just coast/slow down to about 5 to 15 mph depending on what track I'm at and pull off onto the return road, and then pop it into second or first, unless I'm reading plugs then I'll toss it in neutral when I'm down to about 10 mph, just enough to coast onto the return road and out of the way.
Never downshift under power, that's how I've always done it and have never had a problem. Only down shift when you're down to 15 mph or so, at that speed everything's slow enough so nothing will get hurt.
I can put mine in reverse by having it in neutral and just hitting the transbrake button, which I will do since it's easier then reaching over to pull the level with your other hand at times, but that's the only time I do that.
I am swapping to a glide though, not sure what the routine is with one of those, but I'll figure it out.
Never downshift under power, that's how I've always done it and have never had a problem. Only down shift when you're down to 15 mph or so, at that speed everything's slow enough so nothing will get hurt.
I can put mine in reverse by having it in neutral and just hitting the transbrake button, which I will do since it's easier then reaching over to pull the level with your other hand at times, but that's the only time I do that.
I am swapping to a glide though, not sure what the routine is with one of those, but I'll figure it out.
I always let off the gas, and let the motor/trans slow me down to a reasonable speed, then get on the brakes a little, then when I get to the turn, I need to downshift, so I'll put it into 2nd or 3rd, after that it's just normal driving. I have put it in neutral after I've slowed down enough before the turn, but I try not to do that.
Then again, I have a 1/2 mile shut down, where as some tracks only have 1/4 mile shut down
Then again, I have a 1/2 mile shut down, where as some tracks only have 1/4 mile shut down
Tee boy you're correct. Pretty much what I have been doing, and have been problem free. A low power car can start the burnout in 1st that's o.k., just pull 2nd as soon as you have the tires turning... don't let the rpm get up more then about 3000 if you can.
Straight off Rossler Transmissions website:
Special safety note: Never throw any 3-speed transmission into neutral when you cross the finish line, leave the transmission in high gear as you slow down. The internal parts will spin 2 to 2 ½ times faster then the trap RPM and can cause internal parts to explode and exit the transmission, this may cause injury and or death, the exit of the transmission fluid may cause fire or loss of control of the car. Always run a shield and all safety equipment mandated by IHRA ADRL and the NHRA. Safety is no place to cheap out!
Special safety note: Never throw any 3-speed transmission into neutral when you cross the finish line, leave the transmission in high gear as you slow down. The internal parts will spin 2 to 2 ½ times faster then the trap RPM and can cause internal parts to explode and exit the transmission, this may cause injury and or death, the exit of the transmission fluid may cause fire or loss of control of the car. Always run a shield and all safety equipment mandated by IHRA ADRL and the NHRA. Safety is no place to cheap out!