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 Cam timing.
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Joined: Apr 2007
Posts: 467
Adjunct
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OP
Adjunct
Joined: Apr 2007
Posts: 467 |
I know it probably has been mentioned before,but has anybody tried changing the cam timing on the 270crank engines in the Speedy & America.If so was it worth the effort? Also which way or ways did you try moving the cam or cams.I know they do this on the 360 Bonnie engines and seems to make a difference. 
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 Re: Cam timing.
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Joined: Sep 2006
Posts: 348
Adjunct
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Adjunct
Joined: Sep 2006
Posts: 348 |
one guy over on ratnet just did this , on a 360 motor, dynoed before and after and found no advantage, and in fact went back to stock. This is the latest, afaik
G
I never wanted to lead, and I never wanted to follow.
I just wanted to ride.
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Re: Cam timing.
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Joined: Feb 2007
Posts: 23,194 Likes: 56
Fe Butt
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Fe Butt
Joined: Feb 2007
Posts: 23,194 Likes: 56 |
I saw something but can't remember where that adv. the ex, 1 tooth held a small improvement. I seem to remember it being on an 865 engine but not sure. As far as worth the effort I couldn't tell you, I don't remember any specifics. I didn't find anything on this site with search but I had so many results I didn't check them all and not sure it was even here or not it was long enough ago I can't remember the specifics.
I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!
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Re: Cam timing.
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Joined: Jan 2005
Posts: 8,639 Likes: 3
Old Hand
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Old Hand
Joined: Jan 2005
Posts: 8,639 Likes: 3 |
You might get some advantage on an 865 engine. On those, the exhaust valve closes way too early for the good of anyone other than politicians. If they could close the exhaust of politicians early, that could put an end to global warming. 
Let's hope there's intelligent life somewhere in space 'cause it's buggar all down here. -- Monte Python
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Re: Cam timing.
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Joined: Sep 2006
Posts: 1,457
Learned Hand
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Learned Hand
Joined: Sep 2006
Posts: 1,457 |
There was a lot of discussion about advancing the exhaust cam a tooth on Delphi so I tried it. Didn't improve anything. Found out later that it only works on 360 degree engines, not 270.
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 Re: Cam timing.
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Joined: Apr 2007
Posts: 467
Adjunct
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OP
Adjunct
Joined: Apr 2007
Posts: 467 |
Thanks for the replys.I was hoping that if it would make some improvement I was going to try it next time I set the valves.I may try it anyway.Would be cool to see some dyno results.Thanks.IF I do it I will try to let you know.
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Re: Cam timing.
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Joined: Feb 2007
Posts: 23,194 Likes: 56
Fe Butt
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Fe Butt
Joined: Feb 2007
Posts: 23,194 Likes: 56 |
do a before and after dyno if you can for comparison.
I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!
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