370/F1A dyno results on pump gas
05-12-2012, 06:45 PM
#22
More and more, I see people staying in the 10.0+ compression ratio for centri blowers. I think with better tuning these days, as well as better tuning of meoh/water systems, the power potential is pretty good. Are there any turbo's making almost 1000hp on 16psi on a 370ci motor? I'm not sure.
05-12-2012, 08:11 PM
#23
Does 'Pump Gas' really count if your using Methanol with it?
And "66mm wastegate" on a centri? How is this setup working?
Some very strong numbers. Congratulations.
What is your Dynamic Compression?
Which crank diameter blower pulley do you have?
And "66mm wastegate" on a centri? How is this setup working?
Some very strong numbers. Congratulations.
What is your Dynamic Compression?
Which crank diameter blower pulley do you have?
05-12-2012, 08:17 PM
#24
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More and more, I see people staying in the 10.0+ compression ratio for centri blowers. I think with better tuning these days, as well as better tuning of meoh/water systems, the power potential is pretty good. Are there any turbo's making almost 1000hp on 16psi on a 370ci motor? I'm not sure.
05-12-2012, 08:24 PM
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05-12-2012, 08:35 PM
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Oh to answer your question the wastegate and AMS boost controller works great I can set it to run on any boost level that the blower will make or just set it to run on 4psi to run on the street. But the nice thing about this setup is that I can launch on lower boost and ramp the boost in when and where I want it for the track. the only thing I will change about it is Ill be using co2 to keep the gate closed rather than boost. thanks jeff
05-12-2012, 09:26 PM
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05-13-2012, 05:05 AM
#35
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Sticking with the slightly lower CR will only cost a small amount of power. But it will allow you a perfectly safe tune for pump fuel only. And lets face it, on the street you'll be able to make more than enough power on that given traction levels available.
Opting for high compression will mean water/meth must be used all the time. Yes it will make more power...but is it always needed or wanted ?
05-13-2012, 06:26 AM
#36
it depends really.
Sticking with the slightly lower CR will only cost a small amount of power. But it will allow you a perfectly safe tune for pump fuel only. And lets face it, on the street you'll be able to make more than enough power on that given traction levels available.
Opting for high compression will mean water/meth must be used all the time. Yes it will make more power...but is it always needed or wanted ?
Sticking with the slightly lower CR will only cost a small amount of power. But it will allow you a perfectly safe tune for pump fuel only. And lets face it, on the street you'll be able to make more than enough power on that given traction levels available.
Opting for high compression will mean water/meth must be used all the time. Yes it will make more power...but is it always needed or wanted ?
05-13-2012, 09:35 AM
#37
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it depends really.
Sticking with the slightly lower CR will only cost a small amount of power. But it will allow you a perfectly safe tune for pump fuel only. And lets face it, on the street you'll be able to make more than enough power on that given traction levels available.
Opting for high compression will mean water/meth must be used all the time. Yes it will make more power...but is it always needed or wanted ?
Sticking with the slightly lower CR will only cost a small amount of power. But it will allow you a perfectly safe tune for pump fuel only. And lets face it, on the street you'll be able to make more than enough power on that given traction levels available.
Opting for high compression will mean water/meth must be used all the time. Yes it will make more power...but is it always needed or wanted ?
05-13-2012, 09:36 AM
#38
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Slightly lower is one thing, but he's at 10.7:1 and a lot of people reccomend going 9.0:1, that's almost 2 points lower. In an n/a application, isn't it widely accepted that each full point is worth a certain percentage of power? I'm not sure what it's worth in a FI setup, but I see a lot of factory 4th gen motors making north of 650 rwhp with heavy drivetrains/big wheels with relatively low boost levels that are in the 8-12psi range. I know they are larger cubes from the factory, but they are also north of 10.5:1 compression as well.
If you intend to push hard on pump fuel only, there are few downsides to running a slightly lower CR. It will give you a much wider and safer tuning window to make the power, for only a very small trade off in performance.
It's just a balancing act as to how much safety you want built in
Obviously if you're happy running water/meth all the time, or race fuel etc, then you may as well opt for the higher CR.
05-13-2012, 09:45 AM
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Again, doing it with methanol or race fuel for short periods is not the same.
If you intend to push hard on pump fuel only, there are few downsides to running a slightly lower CR. It will give you a much wider and safer tuning window to make the power, for only a very small trade off in performance.
It's just a balancing act as to how much safety you want built in
Obviously if you're happy running water/meth all the time, or race fuel etc, then you may as well opt for the higher CR.
If you intend to push hard on pump fuel only, there are few downsides to running a slightly lower CR. It will give you a much wider and safer tuning window to make the power, for only a very small trade off in performance.
It's just a balancing act as to how much safety you want built in
Obviously if you're happy running water/meth all the time, or race fuel etc, then you may as well opt for the higher CR.