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| 4dlvr |
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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
_________________ 96 EF FAIRMONT |
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| Southy |
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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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| Steady ED |
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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.
_________________ ED XR8 Sprint - S-Trim, V500, 249rwkw |
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| Southy |
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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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| Kayden |
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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.
_________________ Speed. Is there anything that compares? |
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| 4dlvr |
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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
_________________ 96 EF FAIRMONT |
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| kezz |
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i thoought crow cams were billets and didnt need shims?
_________________ Kezz's 5sp Box Car ---> RPD enhanced with a bunch of other stuff |
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| The Dog |
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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 
_________________ You'll ride a black tornado across the western sky
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| Southy |
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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
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| Kayden |
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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)
_________________ Speed. Is there anything that compares? |
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| The Dog |
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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.
_________________ You'll ride a black tornado across the western sky
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| JCaSs |
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does ne 1 know where u can get lahh adjusters, or seal kits for them for an el???
_________________ EL GLi, DEV5 head, JMM race series extractors and exhaust.
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| benno's ed |
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Repco has them in packs of 4 for about $20
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