So, back from the dead!!!
Anyone got any real feedback on these? Will they work on the revup engines with intake and exhaust timing? Would the uprev be able to control it?

 

it's for the intake side only, they don't make them for the exhaust side, nor would there be any point in having them

 

Ok. So they would work on the revup engines too? Do you know if uprev would be able to control the extended cam angle?
How would you rate them in terms of mid range torque gains? (I assume you've got them on your NA beast)

 

they are for cars with very large duration cams

I do not have them on my car, but we will be using them on our stroker build

 

If you were to use them even on milder cam setups, surely you would still see an improvement in low/mid range torque though no? Theoretically even if you used them on stock cams they would improve low end torque wouldn't they? Or am i just way off here?

 

they are not designed for mild cams, and certainly not designed for stock cams. They are strictly for use on cams that have significantly increased duration vs stock

http://www.z1auto.com/prodmore.asp?m...ine&prodid=922

from our website:

"Designed for use with high duration cams such as Tomei 272, Tomei 280, Brian Crower 272, Kelford Stage 2 and Stage 3, JUN, NISMO S2, etc. Requires professional installation and tuning."

 

Yes i understand that they are designed for aggressive cams. All these things do is broaden the angle of cam timing, so theoretically you can use these on whatever cam setup you want.
So what im saying is that in theory, if you used these on stock cams you could get more torque from the lower RPM's, right?

 

I think I've answered that already. A low duration cam, by it's existance, has zero need for more cam angle

 

Ok. I just thought that even though stock cams run a lot less cam angle, by advancing it more in the lower RPM region with the VTC it would net you more torque. Isn't that the theory with Hondas and their VTEC? A lot of them advance the VTEC so that it kicks in earlier and gives the car that extra torque kick earlier on.

P.S. I'm not trying to argue with you, i'm just trying to learn a bit more about this system.

 

Vtec has absolutely nothing to do with the system the VQ35DE uses - they are unrelated

You can advance the intake cam timing on your factory pullies, via the ecu. Having more advance than the factory allows us only beneficial on high duration cams