Drivetrain Are these normal boost values or do I Have a leak?
#51
definitly is a 535 that's probably your problem that size slips bad on my car with 17%. That's not even a gates belt it's a "bando", you can look it up with the gates parts cross reference tool
https://ww2.gates.com/if/automotive/...ange/index.cfm
https://ww2.gates.com/if/automotive/...ange/index.cfm
#54
Did this today but i was using a new logging program, still didn´t get the hang of it, but tomorrow ill do one with my old one.
Anyway here it is, 3rd, 3rd and 4th gear.
@MrBlah
https://datazap.me/u/ijuve/try?log=0&data=8-16-19
Seems Im getting max 13.9 PSI at 7k rpm in 4th gear.
P.S. Idk what happend on the 4th gear log but ignore the rev drop, when the boost hits 13.87PSI it was on the redline. I suggest enabling the speed chart to guide you
Anyway here it is, 3rd, 3rd and 4th gear.
@MrBlah
https://datazap.me/u/ijuve/try?log=0&data=8-16-19
Seems Im getting max 13.9 PSI at 7k rpm in 4th gear.
P.S. Idk what happend on the 4th gear log but ignore the rev drop, when the boost hits 13.87PSI it was on the redline. I suggest enabling the speed chart to guide you
#55
I'll come back to your cam as the reason for lower than expected boost. You are 2psi less than I am on a much more aggressive pulley setup. I am hitting max boost at around 4500rpm of 15.5psi, ever so slightly reduces back to around 15psi up until 5500rpm then gradually climbs to 15.8psi at 7000rpm. So i really don't think you have an issue. If you are just 17 pulley and cam surely others can say what boost they seeing.
Im yet to find someone with a similar build that has done some logs so i can compare them more accurately!
I agree that the cam should reduce the boost a bit. What kind of pulley setup are you running with those Boost Values?
#56
I have close to the same
this log is with dominator, 17%, jcw intake, 4:1 header, highflow cat, peaks at 15.5 psi at 7200 when the throttle plate closes 3rd gear
https://datazap.me/u/mrblah/silver-c...=3-7&zoom=0-44
same car with a PH3 Saturday peaks at 14.4 at 7200 but this was only a 2nd gear pull. Once my new wideband sensor gets here I'll test in 3rd, I always pick up boost in 3rd, 2nd is too quick a pull to get to full boost
this log is with dominator, 17%, jcw intake, 4:1 header, highflow cat, peaks at 15.5 psi at 7200 when the throttle plate closes 3rd gear
https://datazap.me/u/mrblah/silver-c...=3-7&zoom=0-44
same car with a PH3 Saturday peaks at 14.4 at 7200 but this was only a 2nd gear pull. Once my new wideband sensor gets here I'll test in 3rd, I always pick up boost in 3rd, 2nd is too quick a pull to get to full boost
#57
I have close to the same
this log is with dominator, 17%, jcw intake, 4:1 header, highflow cat, peaks at 15.5 psi at 7200 when the throttle plate closes 3rd gear
https://datazap.me/u/mrblah/silver-c...=3-7&zoom=0-44
same car with a PH3 Saturday peaks at 14.4 at 7200 but this was only a 2nd gear pull. Once my new wideband sensor gets here I'll test in 3rd, I always pick up boost in 3rd, 2nd is too quick a pull to get to full boost
this log is with dominator, 17%, jcw intake, 4:1 header, highflow cat, peaks at 15.5 psi at 7200 when the throttle plate closes 3rd gear
https://datazap.me/u/mrblah/silver-c...=3-7&zoom=0-44
same car with a PH3 Saturday peaks at 14.4 at 7200 but this was only a 2nd gear pull. Once my new wideband sensor gets here I'll test in 3rd, I always pick up boost in 3rd, 2nd is too quick a pull to get to full boost
Then I am for sure loosing boost, if you get 15.5 with highflow headers and cat I should be seeing even more boost with stock header/cat.
I´ve ordered the gates belt that you advised me, waiting for it to arrive
#59
Have you had your car on the dyno? To check power levels if it's round about where it should be at with your mods? Sometimes less boost is good, as your setup might be free-er flowing, with lower iats and make more power than some one without a cam and making more boost.
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