200 Shot And Redline
200 Shot And Redline With My Ms3 Setup I Normally Spin My Motor To About 6800 Im Gonna Start Spraying A 150-200 Shot (rwhp) Soon And I Was Wondering If I Need To Lower The Rpms Any6 Due To The N20?
my buddy 1fastws602 hits his with a 200 shot and shifts it at 6850 no problems and this is on stock internals(has been doing this for two years allready 
) and still running strong.
) and still running strong. Trending Topics
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Verdad Gallardo I Would Think The Higher You Spin The Less Cylinder Pressure And So Long As You Dont Run Into Other Limitations Ie: Rods, Maincaps From Too Much Rpms Shuoldent You Ride Out Your Power Curve
Holding your nitrous on through your peak power is OK, it's OVER-REVVING or hitting the rev limiter while the N20 is still activated.
If you normally rev to 6800 I would recomend to continue to do so and just set the N20 to turn of at around 6500. That way IF something happens up top your nitrous will not still be spraying, and when ya shift the N20 will come right back on.
If you normally rev to 6800 I would recomend to continue to do so and just set the N20 to turn of at around 6500. That way IF something happens up top your nitrous will not still be spraying, and when ya shift the N20 will come right back on.
There are a few things to consider with spray and rpm.
#1 is the engines structural limits
#2 will shifting higher on juice make you faster
#3 taking into account the rev limiter and spraying near the rev limit.
number one really isnt all that different than NA. Cylinder pressure does diminish in upper rpms so with a 200 shot you may only be getting another 100-150 ft lbs of tq (cylinder pressure) at those high rpm. The actual rpm has more of an impact. And that has little to do with the power stroke.
Number 2 is really the issue. Will it make you faster. Well the same gear calculations apply on juice as they do NA. You have to calculate your shift points and what HP or TQ you are making at that rpm and what the HP or tq will be after the shift. Same way ypu might calculate NA. The thing is...with NA its usually better to rev to get the best ET and MPH. With nitrous its not always that way. Thats generally due to the massive TQ spike in the lower rpms and the tapering off of tq with rpm. That generally has the HP curve looking like a table top when graphed. This really means that nitrous is much more forgiving when you short shift. However... a dual stage based on RPM will need to be shifted higher.
And the last thingis the affect of hitting the rev limiter when spraying. Wet or dry its not a good thing. So leave a few hundred RPM between the window switch and the rev limiter.
#1 is the engines structural limits
#2 will shifting higher on juice make you faster
#3 taking into account the rev limiter and spraying near the rev limit.
number one really isnt all that different than NA. Cylinder pressure does diminish in upper rpms so with a 200 shot you may only be getting another 100-150 ft lbs of tq (cylinder pressure) at those high rpm. The actual rpm has more of an impact. And that has little to do with the power stroke.
Number 2 is really the issue. Will it make you faster. Well the same gear calculations apply on juice as they do NA. You have to calculate your shift points and what HP or TQ you are making at that rpm and what the HP or tq will be after the shift. Same way ypu might calculate NA. The thing is...with NA its usually better to rev to get the best ET and MPH. With nitrous its not always that way. Thats generally due to the massive TQ spike in the lower rpms and the tapering off of tq with rpm. That generally has the HP curve looking like a table top when graphed. This really means that nitrous is much more forgiving when you short shift. However... a dual stage based on RPM will need to be shifted higher.
And the last thingis the affect of hitting the rev limiter when spraying. Wet or dry its not a good thing. So leave a few hundred RPM between the window switch and the rev limiter.
Auto Car.. So If I Hit The Rev Limiter I Guess I Got Other Problems 
So Basically Just Spray The Car And Look At The Dyno Sheet And Recalc The Shift Points The Came Way I Would In A Na Car....
Thanks For The Help Guys..
So Basically Just Spray The Car And Look At The Dyno Sheet And Recalc The Shift Points The Came Way I Would In A Na Car....
Thanks For The Help Guys..
Originally Posted by Jpr5690
Auto Car.. So If I Hit The Rev Limiter I Guess I Got Other Problems
So Basically Just Spray The Car And Look At The Dyno Sheet And Recalc The Shift Points The Came Way I Would In A Na Car....
Thanks For The Help Guys..
So Basically Just Spray The Car And Look At The Dyno Sheet And Recalc The Shift Points The Came Way I Would In A Na Car....
Thanks For The Help Guys..