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cam specs.. 

 

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 Post subject: cam specs..
Posted: Wed Oct 25, 2006 3:04 pm 
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here is the specs for my re-grind..
it's pretty mild I believe, but could someone compare it to a standard one?

Rocker ratio 1.9
Cam lift .0258"
Valve lift net .049"
Duration at .050" camlift 204
Centerline at peak lift Inlet:108 exhaust:116 Lobe
Seperation : 112
Camtiming at .050" camlift intake opens :6 intake closes :30
exhaust opens: 38 Ex closes:14

 

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Posted: Wed Oct 25, 2006 3:09 pm 
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doesnt make much sense to me

edit: to be more specific

JT wrote:
could someone compare it to a standard one?


A standard cam from what engine?

JT wrote:
Rocker ratio 1.9


ea-el have 2:1 rockers, then they changed to 1.8

JT wrote:
Cam lift .0258"
Valve lift net .049"
Duration at .050" camlift 204


They are TINY numbers, not even enough for the engine to work and they dont make sense (how can you have max lift of 49 thou but have 204 degrees above 50 thou). I guess you mean .490" lift.

The specs are on the mild side. It has a little more lift and duration than the standard cams and the lobe centers are a little tighter. From memory it is similar to the saloon car control cam.

 

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Posted: Wed Oct 25, 2006 5:04 pm 
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saloon car control cam? whats that?

yeah sorry my car is a 1992 EBII.. so i guess I just wanted to know if this was any better than a standard one.
Perhaps similar to a mild fast road cam grind?

anyway, its for use with a standard computer. Other mods are AU gasket/bolts, ported head, EA intake, El fans, and I'll do the filter and exhaust later.

 

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Posted: Wed Oct 25, 2006 8:39 pm 
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JT wrote:
saloon car control cam? whats that?


The control cam used in the saloon race series.

JT wrote:
yeah sorry my car is a 1992 EBII.. so i guess I just wanted to know if this was any better than a standard one.
Perhaps similar to a mild fast road cam grind?

anyway, its for use with a standard computer. Other mods are AU gasket/bolts, ported head, EA intake, El fans, and I'll do the filter and exhaust later.


Should run fine on the standard ecu, but those specs say 1.9:1 rr and eb's are 2.0:1

 

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Posted: Thu Oct 26, 2006 2:00 am 
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not enough lift on that cam. definatly not the saloon control cam they have about 540 thou lift and a tighter lsa.

what is the rocker gear off? as previously queried the 2 that ford have used are 2.0:1 and 1.8:1 to my knowledge.. could be and prolly am wrong on that one though..

But I was sure that control cam had more lift on it.
what duration did it have as well?

 

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Posted: Thu Oct 26, 2006 2:04 am 
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dc_todd wrote:
not enough lift on that cam. definatly not the saloon control cam they have about 540 thou lift and a tighter lsa.

what is the rocker gear off? as previously queried the 2 that ford have used are 2.0:1 and 1.8:1 to my knowledge.. could be and prolly am wrong on that one though..

But I was sure that control cam had more lift on it.
what duration did it have as well?


The saloon cam fitted to ea/eb's were 490 lift and a touch over 200 @ 50 (I have the cam card around here somewhere).

 

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Posted: Thu Oct 26, 2006 2:14 am 
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ok thats why.. the later e series saloon control cam as in for EF/L was a bit bigger..

 

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Posted: Thu Oct 26, 2006 12:10 pm 
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stockstandard wrote:

Should run fine on the standard ecu, but those specs say 1.9:1 rr and eb's are 2.0:1


crap.. does that mean they f**k it up then? can i use it?

 

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Posted: Thu Oct 26, 2006 12:33 pm 
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Cam lift is advertised at .0258". If that cam is coupled with the 2.0:1 RR's, then the valve lift will be .0516".

Also.. .049 == .0490 the trailing 0's after the decimal point are redundant :)

 

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Posted: Thu Oct 26, 2006 2:33 pm 
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but if the EB rr is 2.0.. then the cam I gave to him must have been 2.0.

I'm guessing the 1.9 was just what was stored on the computer print out of something.. you can't change the rocker ratio of a cam.

 

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Posted: Thu Oct 26, 2006 5:07 pm 
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Waggin wrote:
Also.. .049 == .0490 the trailing 0's after the decimal point are redundant :)


And either way its still not enough lift to run an engine :lol:

 

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Posted: Fri Oct 27, 2006 11:18 am 
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Should be sufficient for a 0.4L engine :)

 

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Posted: Sat Oct 28, 2006 10:24 am 
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weird..

 

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Posted: Sun Oct 29, 2006 9:03 pm 
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found out today that Kelford Camtech here in NZ seem to record their specs differently for some reason... at 50" lift or something

 

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Posted: Sun Oct 29, 2006 11:27 pm 
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JT wrote:
at 50" lift or something


now your talking :D

 

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