Cams are installed wrong???

[MarcSpaz]

Well, I am really not sure what to make of this. I am wondering if I made a mistake during the cam install. I have my VCT locked out at full advance.

I was talking to S.D. on the S197Foum the other day. He was telling me that as I retard the cams, I move the power band up. I also know that I need to be in high revs for these cams and heads to make max output.

Well, today I was talking to one of my sponsors who is a builder. I told him my VCT lockouts were locked full advanced and asked if for a racing app, if I should move it to full retard.

Needless to say, he looked at me like I was a total retard as he shook his head and said "you have them full advanced?!". I took that as, I might want to revisit the mechanical timing... LOL It would be very cool if there was some untapped power.

Too bad it's gonna be awhile before I can afford to get a new handheld so I can adjust cams and tune the car... :(

[boss281]

Run it by JJ, Marc...

[MarcSpaz]

I was hoping he would read this. I will drop him a line next week if he doesn't weigh in before then.

[2k05gt]

I followed the paperwork for the lockouts it said fill advanced
Ask BBR they made the Lockouts

[MarcSpaz]

I know. I trust you or I wouldn't have asked you for help. I wanted them full advance then too. I am just wondering if my thought proccess was wrong.

[ArtQ]

<TABLE border=0 cellSpacing=0 cellPadding=0><TBODY><TR><TD style="PADDING-BOTTOM: 10px; PADDING-LEFT: 10px; PADDING-RIGHT: 10px; PADDING-TOP: 5px">ADVANCE/RETARD
Advancing or retarding the camshaft moves the engine’s torque band up or down the RPM scale by moving the valve timing events further ahead or behind the movement of the piston.
In general, advancing the camshafts improves low-end power and response. Likewise, retarding the camshafts generally improves top-end power and response. Not all engines are the same however. You should experiment with advancing or retarding to see what works best for your particular setup.
<TABLE border=1 cellSpacing=0 cellPadding=0 width="90%"><TBODY><TR><TD width="31%">http://www.quickbrickmotorsports.com/images/advanceretard.gif
</TD><TD width="69%">
Advance

Begins intake event sooner
Opens intake valve sooner
Builds more low-end torque
Decreases piston-to-intake-valve clearance
Increases piston-to-exhaust-valve clearance
Retard

Delays intake event
Opens intake valve later
Builds more high-end power
Increases piston-to-intake-valve clearance
Decreases piston-to-exhaust-valve clearance
</TD></TR></TBODY></TABLE>

</TD></TR><TR><TD style="PADDING-BOTTOM: 10px; PADDING-LEFT: 10px; PADDING-RIGHT: 10px; PADDING-TOP: 10px" bgColor=#999999>What you can expect</TD></TR><TR><TD style="PADDING-BOTTOM: 10px; PADDING-LEFT: 10px; PADDING-RIGHT: 10px; PADDING-TOP: 5px">
It is important to understand that changes in camshaft timing basically shift the engine's powerband. Changing the camshaft timing does not just move the whole power curve up or down X HP. You will however see noticeable areas of gains in portions of the powerband (low end, midrange, and/or top end).
How much gains are possible? On our 100% stock turbo model we were able to realize dyno proven gains of up to 30 whp and 40 ft-lbs of torque (http://www.quickbrickmotorsports.com/images/prod_camtoolhp.gif)! This should give you an idea as to the potential camshaft timing will provide. While our bone stock turbo model gained 20-30 whp, it does not mean every engine will. Some setups may make less, some may make more.
Non-turbo models can benefit from camshaft timing adjustments too. While the normal aspirated engines do not have the potential to make the huge gains the turbo engines do, gains of up to 6 whp have been experienced.
Engines are very sensitive to camshaft timing changes. When adjusting camshaft timing it is common to see large gains in one area of the power curve, but loses in others. The goal is to adjust timing such that the total gains exceed any losses, and you end up with overall net power gains.
Dynos:
http://www.quickbrickmotorsports.com/images/graph_hp_thumb.gif (http://www.quickbrickmotorsports.com/images/prod_camtoolhp.gif)http://www.quickbrickmotorsports.com/images/listblank.gifhttp://www.quickbrickmotorsports.com/images/graph_torque_thumb.gif

</TD></TR></TBODY></TABLE>

[MarcSpaz]

Wow, that is great info! Thanks Art.

Now I am wondering if I should buy a set of on-car adjustable cam phasers. I would assume it would make it possible to get ideal timing.

[boss281]

Art, where did you find this great info?

Marc, who makes on-car adjustable cam phasers????

[ArtQ]

Well, when I'm out ramming around on the web I usually just cut and paste info or save a file, if I don't do that I have a long list of web sights that I have no friggin' idea why I saved. So the answer is, I don't remember where I found that one.
Here's another good read:

[MarcSpaz]

Art, where did you find this great info?

Marc, who makes on-car adjustable cam phasers????

I know Comp make these...

http://www.compperformancegroupstores.com/store/merchant.mvc?Screen=CTGY&Store_Code=CC&Category_Code=MODTiming

BBR and Boss 330 make some as well

[2k05gt]

I know Comp make these...

http://www.compperformancegroupstores.com/store/merchant.mvc?Screen=CTGY&Store_Code=CC&Category_Code=MODTiming

BBR and Boss 330 make some as well

Those are sweet.. Yea Get them
http://www.compperformancegroupstores.com/store/graphics/00000001/MODGears.jpg