More boost, Less timing OR Less Boost, More Timing
10-17-2009, 08:24 PM
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More boost, Less timing OR Less Boost, More Timing Like the title says.... which one makes more power????
I can run 15* at 11psi OR 10* at 14psi...... what makes more power do you think?
Is there some "rule or thumb" for this?
Thanks guys....
I can run 15* at 11psi OR 10* at 14psi...... what makes more power do you think?
Is there some "rule or thumb" for this?
Thanks guys....
10-17-2009, 08:34 PM
#2
I am almost certain it goes boost first then timing then afr.
But maybe people more familiar with dynos and actual testing can chime in.
Too low timing though can make a car pretty doggy and think also you notice quite a bit less torque when you cut down on timing which might be a good thing to save drivetrain parts.
But maybe people more familiar with dynos and actual testing can chime in.
Too low timing though can make a car pretty doggy and think also you notice quite a bit less torque when you cut down on timing which might be a good thing to save drivetrain parts.
10-17-2009, 08:52 PM
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I am almost certain it goes boost first then timing then afr.
But maybe people more familiar with dynos and actual testing can chime in.
Too low timing though can make a car pretty doggy and think also you notice quite a bit less torque when you cut down on timing which might be a good thing to save drivetrain parts.
But maybe people more familiar with dynos and actual testing can chime in.
Too low timing though can make a car pretty doggy and think also you notice quite a bit less torque when you cut down on timing which might be a good thing to save drivetrain parts.
Thats what I though boost-timing-afr...... i am currently running 14psi 10* and 11.2afr
anyone have some dyno time testing this?
10-17-2009, 10:51 PM
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Well the more boost you run the less timing you can run without detonation..... from my experience tuning with hptuners anyway.
The SOTP power FEELS the same between: 14psi 10* 11.2afr and 11psi 15* 11.2afr
But if someone has figured this out and less boost and more timing will make MORE or the SAME power, im deffinetally gonna go less boost.
10-17-2009, 11:04 PM
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If you are on pump gas your going to have to time it low so you dont detonate, my boss's car with a ysi vortech runs 8 degrees of timing on pump gas and still puts down around 650rwhp corrected at 15psi. On 110 he turns it up to mid 20s to low 30s for degrees and car puts down about 800rwhp at 18psi. I hope this helps a bit.
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10-17-2009, 11:06 PM
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at only 10* timing at 14 psi youre leavig alot on the table especially with a little motor and lack of compression. with youre 8.4 scr you can get away with much more timing then you are currenty at. Im currently at 8.8scr and run 23*timing at my 16psi.
i went from 19* to 21* and picked up 66 rwhp
timing will also smooth out your powercurve as well
i went from 19* to 21* and picked up 66 rwhp
timing will also smooth out your powercurve as well
10-17-2009, 11:16 PM
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at only 10* timing at 14 psi youre leavig alot on the table especially with a little motor and lack of compression. with youre 8.4 scr you can get away with much more timing then you are currenty at. Im currently at 8.8scr and run 23*timing at my 16psi.
i went from 19* to 21* and picked up 66 rwhp
timing will also smooth out your powercurve as well
i went from 19* to 21* and picked up 66 rwhp
timing will also smooth out your powercurve as well
are you doing this on pump gas with meth, race gas, or just pump gas? I am just afraid to blow the motor.....
10-17-2009, 11:17 PM
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okay so if I have a 8.8 cr on a stock motor could I run more timing with less boost to save the motor or would the effects be the same because it all deals with how much power the block can hold? Because you hear people say don't go above xxpsi on a stock motor, so could this be a way around that?
10-17-2009, 11:22 PM
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10-18-2009, 12:15 AM
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thats what i though.... but I bet im only making 400-450hp right now.... 
According to the HPtuners logger it took 12 seconds to get to 100mph!!!!!! Ive spent way to much time and money to ony have a 400hp car, if even 400hp lol. Im about to sell it lmao...
According to the HPtuners logger it took 12 seconds to get to 100mph!!!!!! Ive spent way to much time and money to ony have a 400hp car, if even 400hp lol. Im about to sell it lmao...
10-18-2009, 12:18 AM
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9psi on my setup netted me 500 rwhp added 2* timing and made 566
10-18-2009, 10:30 AM
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more timing and less boost will give the feel of a much stronger setup than high boost low timing.
high boost/ low timing is a easier way to tune it on pump gas but i feel like its leaving alot on the table. add timing and you'll see that setup really take off.
high boost/ low timing is a easier way to tune it on pump gas but i feel like its leaving alot on the table. add timing and you'll see that setup really take off.
10-18-2009, 10:44 AM
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so are you showing any counts of knock on either of the settings? Or are you just tryin to be really conservative? There should be lots left on the table with those low timing settings. you should at least be able to run 18* on the 11psi setting which would net you a healthy increase in power. Post up your hptuners file so i can take a look and maybe a log of a wot pull.
Thanks
Thanks