Opinion , How mush boost hp do you run on pump 91?
#1
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Opinion , How mush boost hp do you run on pump 91?
I used to get 93 around here but, all I can find is 91 now that I have her running again.
Would run 18-19 psi back in the day but , thinking about 15 psi and low 400s sounds like a good place on 91 pump that contains 10% ethanol.
Opinions?
Would run 18-19 psi back in the day but , thinking about 15 psi and low 400s sounds like a good place on 91 pump that contains 10% ethanol.
Opinions?
#2
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if you have it tuned right (ie engine sees proper AFR's all the time, not too much backpressure etc etc) 15psi shouldn't be a problem. depending on where you end up with the tuning metrics, more is possible
#4
Senior Member
I run I believe 15-17 psi on EU-95 which should be equal to your 91 rating.
boost doesn't say **** about hp though. Mine is at 400 with all the specs that I run, yet a more modern turbo at same boost should result in better numbers
boost doesn't say **** about hp though. Mine is at 400 with all the specs that I run, yet a more modern turbo at same boost should result in better numbers
#5
Senior Member
Thread Starter
Thanks for the feed back.
My wastegate just dumps straight down so that helps with back pressure. Keep my AFRs rich and knocked a few degrees off timing.
At 11 psi right now and feeling good about 4-6 more.
My wastegate just dumps straight down so that helps with back pressure. Keep my AFRs rich and knocked a few degrees off timing.
At 11 psi right now and feeling good about 4-6 more.
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mr g lord focker
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