rpm's with spray?
09-13-2008, 11:27 AM
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rpm's with spray? What rpm's are you turning when spraying? I was at the track last night talking with a local performance shop and they were convinced 7500 rpm was way to high for a built solid roller stroker motor. I just laughed and said well see. Then I started wondering what other LS1/LSX motors were doing. I've heard of people shifting at 10,000rpm's.
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09-15-2008, 08:20 PM
#8
Cliff,
You only need to spin it as high as it will go while in the power curve. If it starts falling off there is no reason to spin it that high.. But like stated above we have twisted some pretty high as well. 7500 does not sound to unreasonable.
Dave
You only need to spin it as high as it will go while in the power curve. If it starts falling off there is no reason to spin it that high.. But like stated above we have twisted some pretty high as well. 7500 does not sound to unreasonable.
Dave
09-16-2008, 08:30 AM
#9
Like dave said its the intake,head and cam choice. ATV has a sheetmetal and it needs rpm. i had a vic jr with a prety good size hydrolic cam in it
252 272 on a 116
So it loved BIG RPM car pulled hard up there. It also lets you run a little more gear to help down low and still have enugh MPH up top.
252 272 on a 116
So it loved BIG RPM car pulled hard up there. It also lets you run a little more gear to help down low and still have enugh MPH up top.
09-17-2008, 01:23 PM
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i have pretty light rods and pistions and i run mine to 8k shift her, and 148-149 on the 100 shot i was going threw the traps kissing 8300 or so.
im on a stock pcm
once i swap the gears i will be shifting back around 7600-8000 depending where the car runs its best.
ps, im solid roller
im on a stock pcm
once i swap the gears i will be shifting back around 7600-8000 depending where the car runs its best.
ps, im solid roller
10-13-2008, 02:48 AM
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for a standard M6, how does 3000-6000 sound? My thinking is on at 3000, and when shifting (somewhere between 5700-5900) it's still on ,but if you overrev it, it cuts the NO2 at least and allows the rev limiter to kick in with less flyby on the limiter. Also once the downshift takes place, you'll end up in the 4500-4800 range, so the NO2 will be right there waiting again.
Vets? Thoughts on this idea?
Vets? Thoughts on this idea?
10-13-2008, 06:00 PM
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i have pretty light rods and pistions and i run mine to 8k shift her, and 148-149 on the 100 shot i was going threw the traps kissing 8300 or so.
im on a stock pcm
once i swap the gears i will be shifting back around 7600-8000 depending where the car runs its best.
ps, im solid roller
im on a stock pcm
once i swap the gears i will be shifting back around 7600-8000 depending where the car runs its best.
ps, im solid roller
10-13-2008, 11:15 PM
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Yeah, i've had it to 7600 as well a little bit of a hairy launch and was a little late on the 1 - 2 shift, I felt the nitrous go off (window off @ 7600), but got it shifted before the 7800 limiter. And that was on a 300 as well.
10-14-2008, 03:05 AM
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My cam only six speed car is set to shut off at 7300 on the spray with the rev limiter at 7400. I don't run it that high except for through the traps and maybe in 1st gear. The rest of the time I shift it early.
