cam gears on ls without new cams
Honda-Tech Member
Joined: Oct 2002
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From: Phoenix, AZ., USA
Re: cam gears on ls without new cams (tilt)
I have the same question only it's for a friend. He want's to know what some of you guys have them adjusted at? He's running a b18 non vtec with intake headers and exhaust his best time is a 15.3 with this mods.
Honda-Tech Member
Joined: Dec 2001
Posts: 3,643
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From: assville, MI, USA
Re: cam gears on ls without new cams (tilt)
You can get more power out of tuning with only bolt ons, its not going to be as great as with large cams but you still can.
I have seen a dyno of a boltons only b18c5 gaining 10whp from tuning.
With the cam gears you can alter the overlap to alter your powerband.
If you are more concerned about midrange gains (for low speed handling situations like autoX), then you want to widen the lobe serpartion angle and therefor reduce the overlap.
Which is done by retarding the intake cam and advancing the exhaust cam.
For highend gains you want to increase the overlap and shrink the lobe serparation angle. This time by advancing the intake cam and retarding the exhaust cam.
Just be careful and make sure the work is done by a professional, if either gear is retarded too much it can cause a piston to hit a valve.
and with out a doubt only make the adjustments on a dyno where you can see the results, every engine performs differently and responds to modifications differently. Copying someone elses settings or relying on the butt dyno is asking for problems and poor performance.
I have seen a dyno of a boltons only b18c5 gaining 10whp from tuning.
With the cam gears you can alter the overlap to alter your powerband.
If you are more concerned about midrange gains (for low speed handling situations like autoX), then you want to widen the lobe serpartion angle and therefor reduce the overlap.
Which is done by retarding the intake cam and advancing the exhaust cam.
For highend gains you want to increase the overlap and shrink the lobe serparation angle. This time by advancing the intake cam and retarding the exhaust cam.
Just be careful and make sure the work is done by a professional, if either gear is retarded too much it can cause a piston to hit a valve.
and with out a doubt only make the adjustments on a dyno where you can see the results, every engine performs differently and responds to modifications differently. Copying someone elses settings or relying on the butt dyno is asking for problems and poor performance.
New User
Joined: Jul 2001
Posts: 1,336
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From: Cincinasty, OH
Re: cam gears on ls without new cams (StyleTEG)
If you are going to tune them on a dyno, you can see gains.
If you aren't going to tune them on a dyno, don't even bother.
IMO, I wouldn't get them unless you have some sort of AFC, and a FPR as well as the normal bolt-ons.
If you aren't going to tune them on a dyno, don't even bother.
IMO, I wouldn't get them unless you have some sort of AFC, and a FPR as well as the normal bolt-ons.
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Joined: Dec 2001
Posts: 3,643
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From: assville, MI, USA
Re: cam gears on ls without new cams (WiggiE)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by WiggiE »</TD></TR><TR><TD CLASS="quote">IMO, I wouldn't get them unless you have some sort of AFC, and a FPR as well as the normal bolt-ons.</TD></TR></TABLE>
I agree, if you are going to spend the money to have it dyno tuned you should be prepaired to tune the A/F also.
I agree, if you are going to spend the money to have it dyno tuned you should be prepaired to tune the A/F also.
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