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crow cams 

 

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 Post subject: crow cams
Posted: Fri Dec 08, 2006 8:40 pm 
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does any one know what the biggest crow cam you can put in a i6 with out having to change the valve springs is???
thanks

 

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Posted: Fri Dec 08, 2006 8:58 pm 
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well for EA-ED...... im running a Stage 3 and it needs springs....... i think stage 2 you would be ok but no dought you will get ticking noises due to shim sizes....... just do the springs too, its easy
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Posted: Fri Dec 08, 2006 9:23 pm 
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Southy wrote:
well for EA-ED...... im running a Stage 3 and it needs springs....... i think stage 2 you would be ok but no dought you will get ticking noises due to shim sizes....... just do the springs too, its easy

What has the amount of shims got to do with springs Southy?

www.crowcams.com.au
They have a catalogue that not only gives you a rundown on cam specs, but also the projected power range, what models it suits, and whether or not it needs springs/tune.

 

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Posted: Fri Dec 08, 2006 9:28 pm 
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not so much springs........ when you put a new camshaft in it alters the lift on the Valves, so therefor it the lifter is lifting to a higher extent.... when i did my cam, i left the same shims in it.... then noticed that f**k loud as ticking noise.... found out i need thicker shims to accomidate for the change in lift... problem fixed
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Posted: Fri Dec 08, 2006 11:54 pm 
Oompa Loompa
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Do the springs as well.
I had the stage 2 cam put in a couple of years ago when it was still their best, and it needed springs, and it ran like a b**ch until I added a piggyback chip to the computer. The vernier gear is a good idea as well. If you call Crow, I believe they sell cam, springs and timing gear as a package.

 

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Posted: Sat Dec 09, 2006 2:18 pm 
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would there be any more peformance gain if i add the springs and vernier gear??? if not i wont bother because i dont think ill drive it hard enough to f#*k the springs.
thanks

 

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232rwkw@4psi

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Posted: Sat Dec 09, 2006 3:42 pm 
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i thoought crow cams were billets and didnt need shims?

 

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Posted: Sat Dec 09, 2006 3:49 pm 
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kezz wrote:
i thoought crow cams were billets and didnt need shims?


As far as I knew, shims were only required on reground cams :?

 

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Posted: Sat Dec 09, 2006 5:11 pm 
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mine was a billet cam yes.... BUT the lifters were ticking like crazy..... dad (mechanic) said its not doing any harm but to get the sound away just replace the 1.8 shims with some 2.4s and wallah! no more ticking..... just the sound of lumpy idle :cool:
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Posted: Sat Dec 09, 2006 5:26 pm 
Oompa Loompa
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The springs are precautionary. You really don't want to risk busting them.
The Vernier gear allows for better/easier tuning.

(If I'm wrong on anything, please all feel free to jump in)

8-)

 

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Posted: Sat Dec 09, 2006 5:31 pm 
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The springs are heavier to allow for extra lift. This limits possible valve float at high revs. If the lifters (actually hydraulic lash adjusters not lifters) are ticking, either oil pressure is a problem or they are fairly worn and need replacing. 8-)

 

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Posted: Sat Dec 23, 2006 12:39 am 
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does ne 1 know where u can get lahh adjusters, or seal kits for them for an el???

 

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Posted: Sat Dec 23, 2006 8:45 am 
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Repco has them in packs of 4 for about $20
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