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ginger pubes
tinkerer
Joined: 28 Oct 2003
Posts: 50
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 Posted: Fri Nov 21, 2003 10:39 pm Post subject: VALVE TIMING |
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HOW MANY DEGREES SHOULD I RETARD MY CAM TO GET MAXIMUM POWER INCREASE AT HIGH REVS? PLEASE TELL ME IF ITS ON THE CAM OR CRANK.
TIM |
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Ben Wight
backyard mechanic
Joined: 04 Oct 2001
Posts: 946
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| Posted: Fri Nov 21, 2003 11:05 pm Post subject: Re: VALVE TIMING |
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| You will be wasting your time. Buy a bigger cam. |
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ginger pubes
tinkerer
Joined: 28 Oct 2003
Posts: 50
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| Posted: Fri Nov 21, 2003 11:12 pm Post subject: Re: VALVE TIMING |
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| A MAN NAMED WAYNE WHO USED TO WORK AT BARNES HIGH PEFORMANCE IN NAMBOUR DYNOED HIS RALLY SERIES GEMINI, DID WHAT I WANT TO DO AND GOT 5 HP INCREASE AT THE WHEELS. THATS ALOT WHEN YOU ONLY HAVE 80. I JUST CANT GET IN CONTACT WITH HIM TO FIND OUT HOW MANY DEGREES TO RETARD IT BY. |
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ONLYA4
petrol head
Joined: 12 May 2003
Posts: 1114
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GROOV3
petrol head
Joined: 04 Oct 2001
Posts: 3682
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| Posted: Fri Nov 21, 2003 11:53 pm Post subject: Re: VALVE TIMING |
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| IST THIS THE CAPS LOCKS FORUMS OR WHAT CAUSE MY CAPS ITS BROKEN AND I CANT RETARD IT BACK |
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Ben Wight
backyard mechanic
Joined: 04 Oct 2001
Posts: 946
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| Posted: Sat Nov 22, 2003 1:35 am Post subject: Re: VALVE TIMING |
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What i meant is that sure, you will gain high rpm torque, but you will loose low and mid rpm torque, and your car may become slower because you have suddenly made your power curve "peaky".
You will get a better result by simply installing a bigger cam, as it will improve torque in a broader range. I assume you already have a bigger cam than standard to achieve 80rwhp, but it may simply mean that you need a bigger one again.
Incidently, the amount of cam timing change will be engine dependant, what worked on Wayne's engine, might not be good for yours.
If you want to do it right, you need to get a power curve with standard timing, advance the cam, dyno it again, retard the cam, dyno it again. analyse the test results. |
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mystikal21
tinkerer
Joined: 23 Jul 2003
Posts: 160
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| Posted: Sat Nov 22, 2003 7:05 pm Post subject: Re: VALVE TIMING |
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| gene your real smart arnt you like taking the piss well guess what, why dont u bash your dick over an fj20det and then rub it good after when you finished |
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Loz
backyard mechanic
Joined: 05 Oct 2001
Posts: 943
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| Posted: Mon Nov 24, 2003 12:12 am Post subject: Re: VALVE TIMING |
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ouch...
If your going to play with the cam, find a good variable cam sprocket. It makes life alot easier. |
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