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difference between XE-R cams and "regular" cams?

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Old Sep 11, 2003 | 08:05 PM
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Default difference between XE-R cams and "regular" cams?

I say regular because I am not sure what the different kinds are. I have seen this XE-R modifier and I was wondering what is the difference?
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Old Sep 11, 2003 | 08:13 PM
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Default Re: difference between XE-R cams and

The XE lobe is more aggresive (opens the valve at a faster rate because the lobe is steeper) than a standard lobe. And the XE-R is even more aggressive than the XE.
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Old Sep 11, 2003 | 09:16 PM
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Default Re: difference between XE-R cams and

oh okay, thanks.

then what types of lobes do MTI's X1 and the TR230 cam have?
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Old Sep 11, 2003 | 10:22 PM
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Default Re: difference between XE-R cams and

X1 = XE-R
Not sure what the TR lobes are called but they're mighty aggressive too.
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Old Sep 11, 2003 | 10:57 PM
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Default Re: difference between XE-R cams and

cool.

thanks for the info Colonel
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Old Sep 12, 2003 | 12:16 AM
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Default Re: difference between XE-R cams and

I think TSP uses XE-R lobes. LS1 Speed will order you a Comp custom using XE-R lobes for $379. If you need help coming up with a cam. PM Shawn at NCP. He goes by 93PONY.
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Old Sep 12, 2003 | 08:00 AM
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Default Re: difference between XE-R cams and

The nice thing about the XE-R lobes, even being as agressive as they are, they are VERY streetable and allow for a steady idle.

I have ridden in a Z06 with a XE-R 232/236 112LSA that was SO much smoother idling that my old 226/232 112LSA from a few years back.

I guess it is all in the shape of the lobe.

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Old Sep 12, 2003 | 08:18 AM
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Default Re: difference between XE-R cams and

The pictures at the bottom of this page helped me out a bit.

http://www.compcams.com/Technical/Products/Camshafts/

You may have already seen them or are already familiar with the information, but hopefully it will be of some use.

Josh
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Old Sep 12, 2003 | 10:00 AM
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Default Re: difference between XE-R cams and

Those are some very helful illustrations. Kinda makes me want a solid roller cam in my streetcar.
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Old Sep 12, 2003 | 10:50 AM
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Default Re: difference between XE-R cams and

LS1 Speed will order you a Comp custom using XE-R lobes for $379.
Yep, just ordered a custom grind on Wednesday...they said I should have it in less than a week! $381 shipped!
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