built408

iTrader: (10)

untill you miss a gear

dannyz

I am om my 23'rd bottle right now, and spraying thru the shift's on a stock tranny.
No problems as of yet, but I'm only hitting it with a 75 shot.

99mongooSS

iTrader: (4)

sprayin through on a glide

1969mach1

I do, 1yr long and still going strong.... 150 wet stock 4l60e, stock car at that...

382ssz28

iTrader: (24)

I've built trannies for over 30 years and run N20 since the early 80's. I've never had a problem using the N20 all the way down the track and through the shifts. I use a 4L75E with 200HP and planning on more this year. It is no difference than having a motor at the horsepower that the nitrous increases the power to. If you cut the system, it would be like Torque Management with the ignition cut out between shifts. And yes you would be losing ET! There would be more trans problems if you pulse on and off the N20 between the shifts as the pressures would fluxuate and probably smoke the trans. I would not use over 100HP of N20 on a stock trans and stock motor, (400-450HP). It would be time to get the right tool for the job, (getting a BUILT trans). Good luck.

NastyC6

iTrader: (77)

never had a problem

kc533

iTrader: (1)

Kinda what I was getting at w/ the whole thing. I would never try to spray through the shift on the T56. With nitrous and/or fuel still spraying the split second between shifts through the rpm drop, I can't see how you wouldn't at least blow apart your intake the second you get back on the throttle. Unless of course you're power shifting w/o even lifting off the gas....that's a whole different argument right there.
Anyway like I said before, w/ a good nitrous controller (window switch, wot switch, etc) spraying through the shift on the T56 is completely unnecessary.
For the automatic guys though I can definitely see how it would benefit you, especially if you want your best ET.

Cam72aro

iTrader: (28)

I do all the time. My car doesnt know anything different. I spray it through all shifts. Of course I kick the nitrous off at 6600, rev limiter at 6700, and I shift at 6400 or so. The nitrous never turns off as long as I dont miss a gear. If I do, then no sweat, the nitrous is off then the car goes on the limiter, just like its on motor. If you dont spray through the shift then you are loosing time and speed. It is totally necessary to get the most et out of a car. Its just like turning the nitrous off during a shift on an automatic. Also, its can be way dangerous on a higher powered car. Every time you shift, and disengage, then rengage the nitrous, the possibility of breaking the tires loose is greater, along with loading and unloading the suspension more and less.

nightmare23

iTrader: (5)

i used to spray thru shifts...150 shot till about 6400 rpms ... stock 4l60e still going strong stock rear at that

nahasapeemapetalon

iTrader: (9)

All summer...100 shifts+...
4l80e with shift kit..180rwhp shot

blockheadnic

I did until my trans took a ****.

I sprayed 125 and bang the rev limiter on its last pass, engine still in good condition.

But mine did 135k on it and 5 bottles through it.

Robin L

I do in the Nova

When I ran a supercharged stick car we never lifted the foot off the throttle.

That was a TKO 600 that was Face Plate or Pro Shifted. The RPM would spike to the limiter for a moment but you could barely hear it.

I would suggest a window switch set up about 500 RPM below your rev limiter.

If you miss a shift the only problem you will have is one of the mechnical mass spinning to the moon from being unloaded


Robin

86MonteSS

iTrader: (3)

Setting it 500 rpm under the limiter, is that just for a dry shot?

GT Griller

iTrader: (8)

I do it aswell...on my built 4l60e.

kc533

iTrader: (1)

Cam72aro and Robin L(even though yours is better suited for the abuse), you guys are just braver than me I guess
A very good point. However I think you're missing mine. This is why I keep stressing the importance of a good nitrous controller...I'll use my setup for example...I'm running HSW's MicroEdge which has a 'Pedal Delay' feature for the exact reason you stated above. If I let off the gas due to wheel spin and then get back on it, it allows my car to gain momentum/load the suspension before the nitrous is activated. A progressive controller could also be used in that situation to help keep your *** off the wall

ramairracer

iTrader: (13)

whats a 4l75e never heard of that one???

5_02ls1

iTrader: (20)

maybe he meant a 65e

Cam72aro

iTrader: (28)

Does the progressive controller turn the nitrous off during the shift? I understand your point somewhat, but still think that if you take a car and make a pass spraying it both ways that it will be faster spraying through the shifts. Not like a second faster, but probably a .1 or so.

382ssz28

iTrader: (24)

Basically, it's an upgraded 4L65E from GM.

JL ws-6

iTrader: (50)

I spay thru shifts now @ 150 hp worth of nitrous, and sooner or later when I'm trying to put 450 worth of nitrous thru it guess what.. I'm still spraying thru the shifts.

Nitrous is on @ WOT as soon as the tbrake disengages, and it stays that way until I take my foot off the floor, something else that doesn't happen until the end of a pass LOL.