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Forum nameTurbo/Nitrous Tech
Topic subjectis this boost spike
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i8&topic_id=83351
83351, is this boost spike
Posted by baxsom, Mar-04-05 09:33 AM
ok this is what my car is doing

only in 5th gear at psi of 8ish or more
if i am cruising not in boost and step on it
the rpm's shoot up to around 7k
then down the 4k then slowly raise back up
if i ease the pedal down the boost goes up
the rpms go up normally
and no surging

i am using a profec B spec II with the highest psi memory on
i have my warning limit set to 12 psi
but to make sure that it wasnt hitting the warning and decreasing the boost i have the decrease % set to 0
the memory says that i never hit the warning psi limit though

will the profec remember spikes or only boost that it has seen
for a couple of secs

thanks
83352, RE: is this boost spike
Posted by tim97rs, Mar-04-05 09:38 AM
it only remembers the max psi reached. if you hit 10 a week ago and hit only 5 since, it will still say 10 untill you clear it.
83353, RE: is this boost spike
Posted by DarkOne, Mar-04-05 09:43 AM
Originally posted by baxsom
step on it the rpm's shoot up to around 7k then down the 4k then slowly raise back up


That's your clutch slipping.
83355, RE: is this boost spike
Posted by baxsom, Mar-04-05 10:09 AM
Originally posted by DarkOne
That's your clutch slipping.


DAMN DAMN DAMN

i thought it might be possible but that would explain why i cant find a vacuum leak anywhere when i use an air tank to pressurize the lines

oh well
it is the stock clutch with 70K miles on it
i have already been shopping around for a new one anyway
looks like i am going to have to speed up the buying process
83356, RE: is this boost spike
Posted by DJ420a, Mar-04-05 10:43 AM
Originally posted by DarkOne
Originally posted by baxsom step on it the rpm's shoot up to around 7k then down the 4k then slowly raise back up
That's your clutch slipping.


DAMN, you beat me too it, lol. Nice call

83424, RE: is this boost spike
Posted by ForceFed420a, Mar-07-05 06:37 AM
Yuppers, that's a clutch.

It explains why it only happens with an onset of a lot of power, and not when you get on it slowly.

Sorry man :(

Brian