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View Full Version : jdm d15b rev limit?

matt_22
05-04-2007, 11:19 PM
what is safe for a jdm d15b to rev? i have heard 8k is fine but still not sure. any info would help.
noVtecHERE
05-05-2007, 10:39 AM
the stock P08 ecu that comes with that car has a limiter of 7800 or 8000 i believe...
honduh_head
05-11-2007, 03:49 PM
wow! really? thats pretty high for a SOHC!
onefst91hatch
05-11-2007, 05:20 PM
wow! really? thats pretty high for a SOHC!

X2 thats awesome
INTEGRA DC2
05-16-2007, 01:19 PM
WOW my gsr redlines at 8k thats high for a SOHC
efcivicboy
05-17-2007, 04:15 PM
did u upgrade the valves,valve springs,and retainers?
matt_22
05-19-2007, 11:12 AM
did u upgrade the valves,valve springs,and retainers?

oh my friend was wanting to know what it was cuz he is geting that motor. we just wanted to know what the factory red line was?:tits:
noVtecHERE
05-19-2007, 11:38 AM
with the right transmission it feels fine at 7.6k but drops quick after that, i think they over limited it at 8k, i would put it at 7.8k when i have a choice, and factory vtec is 5.5k
noVtecHERE
05-19-2007, 11:40 AM
theres a lot of modified Bins that show the limiters and such, but the one i have got pulled from the PGMFI rom library and i checked another tuning program that uses the P08 maps and they were the same, also i had a p08 in a D15z6 and it was kinda wierd, to get the power out of the d15b u need the p08, a p28 works ok, but since it peaks later u know the way it goes... GLman.
ILIKETODRIVE
05-20-2007, 02:19 AM
No stock D ECU has a fuel-cut higher than 7200rpm's. :hi:

No stock D valvesprings can handle higher than 7500rpm's over and over without valve float happening.
noVtecHERE
05-29-2007, 10:20 PM
the factory P08 program had the rev limiter set at 7.8k but i guess im wrong, and its not no stock d series valve springs can yadayadayada handle 8k revs repeatedly and not float a valve cause i do it sometimes depending and dont have a problem... so it is unlikely they will hold but in rare cases people dont have problems...


the p08 program i have i use on D15b`s and fuel cut at 7700... never had a problem with that but if it is lower than that i should look into it more...
SOHCsoldier
05-30-2007, 12:14 AM
Last time i checked pgmfi.org didnt have a stock bin pulled from a actual p08. Your just probably using a bin that is "what i think a p08 is"
2fst4door
06-16-2007, 02:48 AM
my stock jdm single cam d16a revs to 8000 on a p28