Stock Turbo, Max PSI/Boost?
....(Which is what the OP is using...)
Interesting thread...
However, I don't see any actual comparative testing data. Just because a particular stock turbo is boosting to 32 PSI, is it necessarily making any more power than it would be at 30 PSI, or 28, or whatever?
I would love to see some same-car same-day stock-turbo tuned dyno pulls at 2 psi increments from wastegate PSI to max PSI. Been looking for this kind of data since I've been an Evom member. Seems like a logical enough test, but I've never seen anyone actually do it.
Include IAT testing along with, and this could be some really useful information.
However, I don't see any actual comparative testing data. Just because a particular stock turbo is boosting to 32 PSI, is it necessarily making any more power than it would be at 30 PSI, or 28, or whatever?
I would love to see some same-car same-day stock-turbo tuned dyno pulls at 2 psi increments from wastegate PSI to max PSI. Been looking for this kind of data since I've been an Evom member. Seems like a logical enough test, but I've never seen anyone actually do it.
Include IAT testing along with, and this could be some really useful information.
Interesting thread...
However, I don't see any actual comparative testing data. Just because a particular stock turbo is boosting to 32 PSI, is it necessarily making any more power than it would be at 30 PSI, or 28, or whatever?
I would love to see some same-car same-day stock-turbo tuned dyno pulls at 2 psi increments from wastegate PSI to max PSI. Been looking for this kind of data since I've been an Evom member. Seems like a logical enough test, but I've never seen anyone actually do it.
Include IAT testing along with, and this could be some really useful information.
However, I don't see any actual comparative testing data. Just because a particular stock turbo is boosting to 32 PSI, is it necessarily making any more power than it would be at 30 PSI, or 28, or whatever?
I would love to see some same-car same-day stock-turbo tuned dyno pulls at 2 psi increments from wastegate PSI to max PSI. Been looking for this kind of data since I've been an Evom member. Seems like a logical enough test, but I've never seen anyone actually do it.
Include IAT testing along with, and this could be some really useful information.
I'll start at wastegate and work my way up 2lbs per pull till it just won't do anything else. It may create more tq but hp will prob not go up over 30lbs unless the high psi spikes enables the turbo to hold higher boost out the topend. I'll provide a good thorough thread next weekend with a dyno of each pull, so keep an eye out!
I'm interested to see how the car reacts with more meth, a bigger exhaust cam, the 25psi gate, and higher boost. If TTP can make 430/440 on pump meth so can I
Interesting thread...
However, I don't see any actual comparative testing data. Just because a particular stock turbo is boosting to 32 PSI, is it necessarily making any more power than it would be at 30 PSI, or 28, or whatever?
I would love to see some same-car same-day stock-turbo tuned dyno pulls at 2 psi increments from wastegate PSI to max PSI. Been looking for this kind of data since I've been an Evom member. Seems like a logical enough test, but I've never seen anyone actually do it.
Include IAT testing along with, and this could be some really useful information.
However, I don't see any actual comparative testing data. Just because a particular stock turbo is boosting to 32 PSI, is it necessarily making any more power than it would be at 30 PSI, or 28, or whatever?
I would love to see some same-car same-day stock-turbo tuned dyno pulls at 2 psi increments from wastegate PSI to max PSI. Been looking for this kind of data since I've been an Evom member. Seems like a logical enough test, but I've never seen anyone actually do it.
Include IAT testing along with, and this could be some really useful information.
...
I'm glad you like my protection! I said that you can't predict knock. I know you can monitor with evoscan and I believe that you are wrong. The ECU will pull "Timing" not boost at a certain knock count. Most people use 8 as a good rule of thumb. I agree with your last statement but you can't control what all the tuners are doing to your car. If people are that smart about timing and what not then they would tune their own car, but this is usually not the case! So back to the first thing i mentioned. Play it safe becasue you can't always rely on the tuner and failsafes!
I said that you can't predict knock. I know you can monitor with evoscan and I believe that you are wrong. The ECU will pull "Timing" not boost at a certain knock count. Most people use 8 as a good rule of thumb. I agree with your last statement but you can't control what all the tuners are doing to your car. If people are that smart about timing and what not then they would tune their own car, but this is usually not the case! So back to the first thing i mentioned. Play it safe becasue you can't always rely on the tuner and failsafes!You cannot however dictate when and at what knocksum the ecu removes ignition timing.
Jim -- There have been a few posts by GST, BR, and others...It always varies slightly based upon car, but it seems that for most 28 - 30 psi peak is about as good as they can get (from a power perspective). Generally the consensus is to run more like 26 - 28 psi (peak) if road racing. For my car, peak power for me seems to be more like 28psi, but each car is different (if I go higher I just start knocking)...91 is not that great ...
...
i ran 28psi...stock turbo, stock head, stock block.....93 octane.
car ran beautiul.....no problems at all.....its all in the tune....make sure you get a reputable tuner to do the job.
car ran beautiul.....no problems at all.....its all in the tune....make sure you get a reputable tuner to do the job.
28psi on 93 octane is not recommended on stock turbo. You can pretend all you want that you have the most awesome tuner around and throw peak boost numbers out there like it makes your **** look bigger, but in the end if you have to run zero to negative ignition timing in order to force that boost level, you are not benefitting at all.
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