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Old 07-25-2004, 00:13   #1 (permalink)
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agree or disagree ?

Whilst looking around doing some homework about roller cams I found the statement below...what do you think?

One thing to remember, though, if your application is using fuel injection, you will want
to use the hydraulic roller cam. The reason for this is the noise generated by the solid
lifters as they slap the cam on open and close is strong enough to fool the computers knock
sensor into thinking the engine is in detonation. The computer then retards the timing
and you never realize the true power potential of the cam. This is why all new cars with
roller cams use hydraulic, along with the minimal maintenance.

When I change my engine to efi will be running a knock densor?
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Old 07-25-2004, 00:19   #2 (permalink)
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Re: agree or disagree ?

Quote:
Originally Posted by 347
Whilst looking around doing some homework about roller cams I found the statement below...what do you think?

One thing to remember, though, if your application is using fuel injection, you will want
to use the hydraulic roller cam. The reason for this is the noise generated by the solid
lifters as they slap the cam on open and close is strong enough to fool the computers knock
sensor into thinking the engine is in detonation. The computer then retards the timing
and you never realize the true power potential of the cam. This is why all new cars with
roller cams use hydraulic, along with the minimal maintenance.

When I change my engine to efi will be running a knock densor?

no, you dont have to run a knock sensor with efi
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Old 07-25-2004, 00:23   #3 (permalink)
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Re: agree or disagree ?

In my 97 EL XR8 with EEC-V there is no knock sensor, I dont know if later (AU) 5.0l have them or not.
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Old 07-25-2004, 00:47   #4 (permalink)
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Re: agree or disagree ?

Quote:
Originally Posted by B-1B
In my 97 EL XR8 with EEC-V there is no knock sensor, I dont know if later (AU) 5.0l have them or not.
nope, they dont have them either
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Old 07-25-2004, 01:09   #5 (permalink)
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Re: agree or disagree ?

Knock sensors are only used because of the variety of fuels around.
Use good fuel all the time and there is no need for a knock sensor.

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Old 07-25-2004, 01:45   #6 (permalink)
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Re: agree or disagree ?

Holdens used to pride themselves on having a knock sensor on it's computer setup - HSV had to write the programming out for it.....
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Old 07-25-2004, 02:56   #7 (permalink)
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Re: agree or disagree ?

i dont think that there was any knock sensors fitted to the falcons, although there 1 major benefit of running a knock sensor, and that is the motor can/will run the maximum amount of advance that it can, but if you get the right person to tune the car, knock will never be a problem anyway.
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Old 07-25-2004, 03:09   #8 (permalink)
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Re: agree or disagree ?

Cool.......does anybody know of there is much cost difference in setting up hyd roller to solid roller?
Would there be much difference in perfromance between the two?
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Old 07-25-2004, 03:30   #9 (permalink)
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Re: agree or disagree ?

Quote:
Originally Posted by 347
Cool.......does anybody know of there is much cost difference in setting up hyd roller to solid roller?
Would there be much difference in perfromance between the two?
solid roller cam set up i quite a bit more expensive than a hyd roller, and usually the cam grinds are a hell of a lot wilder than the hydraulic..all depends on what you want to do with it...also much more maintenence..
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Old 07-25-2004, 03:37   #10 (permalink)
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Re: agree or disagree ?

I am running a solid cam at the moment, how much more maintenence could there be?
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