Hey Smoggie,

How much time do you spend at TT anyways?

 

Bumpdates?

 

The bolt from Revolver arrived today, and the install is complete. I will be tuning for idle and on the dyno within minutes.

 

nice, cant wait to see the results!!!

 

its been hours!!! hehe

 

I'm sorry to keep you guys waiting so long...things haven't exactly gone as expected. In short, I've made less power with these cams than I had in my baseline using the stockers. I've been on the phone with ogwv, who has promised to get to the bottom of this. Something is certainly not right. Yes, we've checked base timing several times. The car idles as expected -- aggressively. However, we just don't have the power gains that were expected. As I said, we don't even have the power of the stock cams right now.

Ogwv and I will speak tomorrow concerning next steps. I'll keep you posted.

 

Very interesting...and confusing.

 

Let us know what you come up with. I don't want to pay to have these installed and tuned if I can't get them to work right. I'm sure there is a solution though.

 

oh pain

 

There was another thread a while back called "Revolver Cams are Crap" where someone had similar problems (less power than stock). You might look at that and see what happened there. I think the owner ultimately gave up on them without resolving the problem. It'd be good to know whether this is a mechanical or a tuning issue. I hope you can work through the problem.

 

PD1, what's your setting for the cams ??

 

yeah that's a good question... see how much overlap is being dialed in or out.

 

He told me that he is running what Ogwv said works best, I think it was -4,-2. Don't the symptoms he's seeing go along with the timing belt being off a tooth or two. I'm sure they've already checked that, but it sure sounds similar. There's only so much that can be wrong with cams.

 

If you are one tooth off on a cam it throws the timing off 7.5 degrees; just divide 360 the number teeth on a gear 48 = 7.5. One time I had both intake and exhaust cams one tooth off and a net advance of 5.5 degrees(7.5 degrees for being one tooth off minus 2 degrees retard dialed into the cam gears) becuse the old Vishnu cam gears were marked in a confusing manner. The car felt good in that it had great mid-range (V-390 with HKS 264/272) but when we put it on the dyno it had very poor top end. Now if the gears are off so that they are RETARDING 7.5 degrees plus anything you put into the cam gears, then I'd assume it would probably make very poor power with Revolvers.

Sure sounds like cam gears are off one tooth if everything else checks out as OK. Hang in there, the Revolver guys are great to work with and I'm sure you will get this issue resolved safisfactorily.

 

One tooth is 7.5 degrees. 360/48=7.5
Likely timed incorrectly. installer couldn't figure out the threads were different in the end of the cam, then had to wait for revolver to send him a 8x1.25 bolt. Kinda tells me whats going on here.