been trying to tweek the car some. although it is fast, its still not putting out the power that it aught to. the idle has been rough since i started it last week, and it has never had more than 6" vaccum on idle. it still shows 10psi on WOT, and 20-25" vacuum on decel...
swapped my volvo bypass valve with a saab one (it has a tighter spring, and stays closed durring normal running) I have an HKS comming in tomorrow. Just put in a new O2 sensor yesterday, and reset the base timing to 10* earlier this week.
been playing with valve timing today. went to 10*advanced, with wonderful success. smooth and powerful. tried other settings, but when i went back to 10*adv. it was not as good as before. bogged some, and ran better on 90% throttle rather than 100%..... (cam is a Racer Walsh - fairly aggressive - probably too much for a turbo, but i had it running nice for a lap or two, so i know it has the potential)
thats the update. any idea's why it would be idleing rough, and with such low vacuum?
cam timing=0*, vacuum=3-4"@idle
cam timing=10*adv., vacuum=6-7"@idle
Thanks,
-Ryan
(Going to get a new PCV valve tomorrow to replace the one in there - carried over from the old N/A engine - just in case)
swapped my volvo bypass valve with a saab one (it has a tighter spring, and stays closed durring normal running) I have an HKS comming in tomorrow. Just put in a new O2 sensor yesterday, and reset the base timing to 10* earlier this week.
been playing with valve timing today. went to 10*advanced, with wonderful success. smooth and powerful. tried other settings, but when i went back to 10*adv. it was not as good as before. bogged some, and ran better on 90% throttle rather than 100%..... (cam is a Racer Walsh - fairly aggressive - probably too much for a turbo, but i had it running nice for a lap or two, so i know it has the potential)
thats the update. any idea's why it would be idleing rough, and with such low vacuum?
cam timing=0*, vacuum=3-4"@idle
cam timing=10*adv., vacuum=6-7"@idle
Thanks,
-Ryan
(Going to get a new PCV valve tomorrow to replace the one in there - carried over from the old N/A engine - just in case)