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Old Nov 14, 2008 | 07:03 AM
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Default Question about cams

Can you put an inlet cam on the exhaust side?
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Old Nov 14, 2008 | 06:16 PM
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Default Re: Question about cams (JDM97R)

Bseries? Yeah, you could. It will fit.

But it's not going to run.
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Old Nov 15, 2008 | 07:02 AM
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Default Re: Question about cams (sackdz)

Originally Posted by sackdz
Bseries? Yeah, you could. It will fit.

But it's not going to run.
Why do you think that?
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Old Nov 15, 2008 | 07:12 AM
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Default Re: Question about cams (JDM97R)

it.d run like **** til u tuned it. .intake cam specs r made to be on intake side obviously so u could tune around it. .but dont see the reasoning.
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Old Nov 15, 2008 | 07:17 AM
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Default Re: Question about cams (Egezzy)

I will tune it as it is with turbo.An inlet cam has more lift than an exhaust cam.I'm just asking if it can be done
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Old Nov 15, 2008 | 07:25 AM
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Default Re: Question about cams (JDM97R)

yea it has mo lift becuz it.s suckin air in which is harder than pushin the air out. .jus buy turbo specific cams if u r goin that route.
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Old Nov 15, 2008 | 07:35 AM
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Default Re: Question about cams (Egezzy)

Thanks for the info
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Old Nov 15, 2008 | 07:39 AM
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Default Re: Question about cams (JDM97R)

Originally Posted by JDM97R

Why do you think that?
It will probably start, it might even generate some torque, but as far as a permanent setup, it just doesnt make sense, both power-wise and mechanically.

First, because the lengths are different. it will bolt up I think but groove location on the non-driven end will cause the cam to be pulled toward cyl 4. You would probably end trashing the cam or the caps/journals or rockers.

Second, because for every designed pair of cams, the intake cam has a higher lift and longer duration than the exhaust. It depends on the cam really, but you would be pulling exhaust back into charge probably during the intake stroke, and it will hurt your power.

Which two cams are you trying to use?
What motor?
What is your c/r?

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Old Nov 15, 2008 | 07:41 AM
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Default Re: Question about cams (sackdz)

I have a b18c type r engine with turbo. 9.0:1 cp and I was thinking about 2 itr inlet cams
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Old Nov 15, 2008 | 07:46 PM
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Default Re: Question about cams (JDM97R)

It may be physically possible to swap the cams but it wouldn't necessarily be a good setup. In the old days the intake and exhaust cams were both the same pattern but that isn't true anymore. Also, the exhaust cam is designed to set the valve back onto the valve seat at a slower rate than the intake. Because both the valve and seat are really hot they can get really hammered if the exhaust closing velocity is too high. Before unleaded gas, the lead deposited on the seat would help cushion the blow but that is not the case anymore.
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Old Nov 15, 2008 | 08:45 PM
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Default Re: Question about cams (Scott_Tucker)

So I will stay with stock cams for now and later will buy a set of skunks.
Thanks for the info guys
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