Rev limiter
12-18-2003, 04:15 PM
#41
3.0 BAR
Join Date: Apr 2003
Posts: 2,260
Re:Rev limiter
Originally Posted by AbaZ
Cam timing is NOT, going to lower your rev limit, especially to 5000 rpms. "tooth and a half" wtf is that? your either 1 tooth off, or 2, not a half? 
I'm speaking from personal experience on that. I don't care what you say, you're not going to convince me otherwise. :P ...as for a "half", your crank gear turns twice for everyone rotation of the cam gear, hence, 1 and a "half".
I'm speaking from personal experience on that. I don't care what you say, you're not going to convince me otherwise. :P ...as for a "half", your crank gear turns twice for everyone rotation of the cam gear, hence, 1 and a "half".
12-18-2003, 04:19 PM
#42
1.5 BAR
Join Date: Jun 2003
Posts: 714
Re:Rev limiter
CAM TIMING DOES IN FACT DEAL DIRECTLY WITH REV LIMIT.
I have a D15B8/D16Y7 combo engine, i timed it up with the incorrect mark.. for some reason, the cam is always inbetween marks. Anyways, i had the same problem, no codes, would only rev to 6500 (on a chipped ECU with a 7800 rev limit).
I checked timing again and again (distributor), and finally i decided to try the cam. I retarded the cam gear 1 whole tooth.
GUESS WHAT? it fixed the problem with no other adjustments.
I have a D15B8/D16Y7 combo engine, i timed it up with the incorrect mark.. for some reason, the cam is always inbetween marks. Anyways, i had the same problem, no codes, would only rev to 6500 (on a chipped ECU with a 7800 rev limit).
I checked timing again and again (distributor), and finally i decided to try the cam. I retarded the cam gear 1 whole tooth.
GUESS WHAT? it fixed the problem with no other adjustments.
12-18-2003, 08:43 PM
#43
Administrator
Join Date: Dec 2002
Posts: 13,991
Re:Rev limiter
Originally Posted by TurboEF9
I'm speaking from personal experience on that. I don't care what you say, you're not going to convince me otherwise. :P ...as for a "half", your crank gear turns twice for everyone rotation of the cam gear, hence, 1 and a "half".
I'm not trying to convince you, I'm just telling you how it is and as far as being 1 1/2 tooth off its impossible, your either 1 or 2, there is no inbetween. If you put the crank gear on the TDC mark and look at your cam gear there is no way it will be off a "half" tooth.
If the belt slipped say 2 teeth, retarded, it would be "hard" to rev, but there is nothing stopping the engine from reving higher.
12-19-2003, 10:06 AM
#44
3.0 BAR
Join Date: Apr 2003
Posts: 2,260
Re:Rev limiter
As far as the PM6 and PR4 being different revs, yes.. It's based on the ignition maps.
BHG brought up a good pint while we were talking about this, cam timing being off, makes ignition timing off! D'uh! :P
So Jeff and I are probably both right... check your damn cam timing boi-o!
BHG brought up a good pint while we were talking about this, cam timing being off, makes ignition timing off! D'uh! :P
So Jeff and I are probably both right... check your damn cam timing boi-o!
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