rev limit and max mph
#1
04-11-2008 | 10:19 PM
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Joined: Jun 2007
Posts: 64
rev limit and max mph
my car only hits 6.8 rpm and reaches only 112 mph....only thing i can think of is cam moved.i was ptting on skunk2 cam and gear but the adjustable cam gear wasnt tight enough and slipd....i then put on stock cam just to be safe but now i this problem....could it be that its advance too much.....picture belt around cam gear..cam rotated but belt stayed in place
#2
04-11-2008 | 11:14 PM
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Joined: May 2005
Posts: 1,240
From: Bay Area
RE: rev limit and max mph
ORIGINAL: o320
my car only hits 6.8 rpm and reaches only 112 mph....only thing i can think of is cam moved.i was ptting on skunk2 cam and gear but the adjustable cam gear wasnt tight enough and slipd....i then put on stock cam just to be safe but now i this problem....could it be that its advance too much.....picture belt around cam gear..cam rotated but belt stayed in place
my car only hits 6.8 rpm and reaches only 112 mph....only thing i can think of is cam moved.i was ptting on skunk2 cam and gear but the adjustable cam gear wasnt tight enough and slipd....i then put on stock cam just to be safe but now i this problem....could it be that its advance too much.....picture belt around cam gear..cam rotated but belt stayed in place
#4
04-12-2008 | 06:32 AM
Super Cereal Admin
Joined: Feb 2007
Posts: 7,081
From: Lexington, KY
RE: rev limit and max mph
I thought the y8 only revved to 6800rpm... the z6 revs to 7200.
And why on earth do you need to go faster than 112?
*edit: also, are you tryin to rev this high when the engine's cold? I know the z6 only revs to 6800 when the engine is cold, but once it gets up to normal temps it runs to 7200.
And why on earth do you need to go faster than 112?
*edit: also, are you tryin to rev this high when the engine's cold? I know the z6 only revs to 6800 when the engine is cold, but once it gets up to normal temps it runs to 7200.
#7
04-12-2008 | 12:33 PM
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Joined: Jun 2007
Posts: 10,023
RE: rev limit and max mph
Follow up on what Reaper noted, is your engine warming up fully to normal temperature? You could have a defective thermostat or the wrong thermostat.
Is the CEL on? Basically any condition that turns the CEL on, and a few that don't, will put the ECU into "limp home" mode where the car still drives but performance is reduced. Use a scanner to check for any codes.
Is the CEL on? Basically any condition that turns the CEL on, and a few that don't, will put the ECU into "limp home" mode where the car still drives but performance is reduced. Use a scanner to check for any codes.
#8
04-12-2008 | 03:59 PM
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Joined: Jun 2007
Posts: 64
RE: rev limit and max mph
yea it warms up, as for trouble codes all i get is p0122 witch has to do with my tps...low input. i dont beleive its the tps itself because its not even 2 weeks old, its an aftermarket i got from obx to put on my skunk2 throttlebody
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