Need help from the Honda Guys
03-03-2010, 07:17 PM
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Need help from the Honda Guys
OK guys... need a little help here as I am Honda stupid. (at least I admit it). Actually the help is for a friend. He has a 91 ef hatch with a SOHC 1.6 V-Tec and he has recently taken the head off and bought a stage 2 Crower cam and titanium springs and retainers. He was advised to degree in the cam using a degree wheel. Is this really necessary? I am just trying to help him out. He would ask himself but he is not a member on here.
03-04-2010, 03:28 AM
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Re: Need help from the Honda Guys
It's definitely not necesary,but it couldn't hurt.It seems like a lot of the aftermarket cams don't have the gear keyway machined exactly where it needs to be.If he had the head decked,it's going to be a little off also.Ultimately though,it needs to be tuned,and the tuner will adjust the cam timing anyway.As said above,it needs some kind of management to get any benefit.
I don't know the cam specs,but since the head is off anyway,I'd clay it to make sure there's no interference issues.
Chris
I don't know the cam specs,but since the head is off anyway,I'd clay it to make sure there's no interference issues.
Chris
03-04-2010, 02:39 PM
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Re: Need help from the Honda Guys
It's definitely not necesary,but it couldn't hurt.It seems like a lot of the aftermarket cams don't have the gear keyway machined exactly where it needs to be.If he had the head decked,it's going to be a little off also.Ultimately though,it needs to be tuned,and the tuner will adjust the cam timing anyway.As said above,it needs some kind of management to get any benefit.
I don't know the cam specs,but since the head is off anyway,I'd clay it to make sure there's no interference issues.
Chris
I don't know the cam specs,but since the head is off anyway,I'd clay it to make sure there's no interference issues.
Chris
03-06-2010, 02:54 PM
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Re: Need help from the Honda Guys
Heres the thing...You will have two cars that are identical to one another mod for mod. One of them will run faster because of attention to detail such as cam degree.
Another thing to consider is...Both cams were ground on different machines and two different people set the machine up. Although the keyway is there...chances are that those cams are off from one another even if it's .005*...Which makes a huge difference when going fo maximum output.
I would degree the cam...with the motor out of the car.
Another thing to consider is...Both cams were ground on different machines and two different people set the machine up. Although the keyway is there...chances are that those cams are off from one another even if it's .005*...Which makes a huge difference when going fo maximum output.
I would degree the cam...with the motor out of the car.
03-06-2010, 08:01 PM
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Re: Need help from the Honda Guys
Heres the thing...You will have two cars that are identical to one another mod for mod. One of them will run faster because of attention to detail such as cam degree.
Another thing to consider is...Both cams were ground on different machines and two different people set the machine up. Although the keyway is there...chances are that those cams are off from one another even if it's .005*...Which makes a huge difference when going fo maximum output.
I would degree the cam...with the motor out of the car.
Another thing to consider is...Both cams were ground on different machines and two different people set the machine up. Although the keyway is there...chances are that those cams are off from one another even if it's .005*...Which makes a huge difference when going fo maximum output.
I would degree the cam...with the motor out of the car.
Once the car's on the dyno,the tuner will play with the cam timing anyway to get the most power and/or move the curve around,so it's not absolutely necesary in this case.If this weren't an OHC engine with such easily adjustable cam timing,I'd say it definitely needs to be degreed.
Chris
03-09-2010, 05:22 AM
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Re: Need help from the Honda Guys
It's definitely not necesary,but it couldn't hurt.It seems like a lot of the aftermarket cams don't have the gear keyway machined exactly where it needs to be.If he had the head decked,it's going to be a little off also.Ultimately though,it needs to be tuned,and the tuner will adjust the cam timing anyway.As said above,it needs some kind of management to get any benefit.
I don't know the cam specs,but since the head is off anyway,I'd clay it to make sure there's no interference issues.
Chris
I don't know the cam specs,but since the head is off anyway,I'd clay it to make sure there's no interference issues.
Chris
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