Adjustable cam sprockets
01-18-2010, 10:02 AM
#1
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Adjustable cam sprockets
Hi
does anyone have an adjustable cam sprocket on their hyundai? How were the gains and is there anything I should think about before buying or installing one?
Thanks.
does anyone have an adjustable cam sprocket on their hyundai? How were the gains and is there anything I should think about before buying or installing one?
Thanks.
01-18-2010, 10:04 AM
#2
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#1. I do NOT advise this purchase unless you plan on spending about $200 to $300 to tune them.
#2. You cannot "adjust" the intake/exhaust cams on the Beta motor seperately. You are forced to advance or retard the timing of both cams at the same time. This is less than ideal.
To adjust the cam timing, you have to.....
- Cut a large hole in the timing belt cover to access the adjustable sprocket or
- Take it off every time you want to make an adjustment or
- Just leave it off
Again....less than ideal. You could take it off to do the install, then leave it off untill you find the best adjustment, then install the cover once all adjustments are made.
But...because the exhaust cam and intake cam are linked...HP gains from adjusting the timing are about 5 HP max. Not worth it really, unless you want to go through all the hassle for minimal gains.
#2. You cannot "adjust" the intake/exhaust cams on the Beta motor seperately. You are forced to advance or retard the timing of both cams at the same time. This is less than ideal.
To adjust the cam timing, you have to.....
- Cut a large hole in the timing belt cover to access the adjustable sprocket or
- Take it off every time you want to make an adjustment or
- Just leave it off
Again....less than ideal. You could take it off to do the install, then leave it off untill you find the best adjustment, then install the cover once all adjustments are made.
But...because the exhaust cam and intake cam are linked...HP gains from adjusting the timing are about 5 HP max. Not worth it really, unless you want to go through all the hassle for minimal gains.
01-18-2010, 01:13 PM
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The biggest thing that you will get from this is that you can shift your power band up or down. If you shift it into the higher RPM's you might make a few more hp but you probably won't be any faster because all you're doing is hitting peak torque a bit later and your bottom end will suffer.