Someone shed some light on spraying past 4th gear..
Thread Starter
Joined: Nov 2001
Posts: 8,259
Likes: 4
From: Valrico, Florida
Originally Posted by bickelfirebird
Well, again, I have sprayed to the top of 5th gear, which with my setup and 4.10, is around 140 mph(?).
Ok Vince are we talking about rolling with someone and spraying it in 4 and 5 or are we making a top speed blast ? I have had to spray in overdrive at over 140 racing before the problem is nitrous is like a torch on a timer .I would let off the nitrous to cool the motor and when the temp dropped i sprayed again but the temp rises very fast octane helps . The bottom line is nitrous makes heat and you must dissapate the heat if not you will burn plugs,pistons,valves you get the picture . I think you will be fine just don't stay on the juice unless you absouletly need it i only use it when i need it short burst should not hurt anything. Octane helps cool the cylinder just remember once you put heat in the cylinder it never drops unless you give it time to dissapate .
TECH Junkie
Joined: Jan 2002
Posts: 3,015
Likes: 0
From: At the office
Originally Posted by bickelfirebird
With 4.10, if you make the 4th to 5th shift in a T56 at say 6200 or 6500 rpm at 100 to 110 mph, the motor will only drop down to around 4000 rpm in 5th, which should be no problem on the juice. Anything above 3200 rpm in 5th should be Ok to spray.
