Re: Degreeing a cam in..
[Re: VernMotor]
#437222
08/13/09 09:44 PM
08/13/09 09:44 PM
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Joined: Mar 2008
Posts: 5,746 Ontario, Canada
Dodgem
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Posts: 5,746
Ontario, Canada
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I like duration at .050 /2 -32 268.5 /2 = 134.25 - 32 = 102.25 or your way. I have a milidon gear drive and you set the cam @ .050 then turn crank to desired BTDC number then line the top gear up to inner hub there are seven bolt holes. then go through various methods of checking @ .050 .0200 .050 before and after max lift and so on! I like where you are going to degree it help the big girl get moving!!!
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Re: Degreeing a cam in..
[Re: BobsProFab]
#437224
08/13/09 09:50 PM
08/13/09 09:50 PM
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Joined: Jan 2005
Posts: 1,163 Newark, OH
Hunted Duck
super stock
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super stock
Joined: Jan 2005
Posts: 1,163
Newark, OH
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Quote:
i do it @ .050 before and after max lift add then divid by 2
Bob
This is how I do mine also.
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Re: Degreeing a cam in..
[Re: BobsProFab]
#437225
08/13/09 09:52 PM
08/13/09 09:52 PM
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Joined: Feb 2009
Posts: 1,532 off the grid
340B5
pro stock
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pro stock
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off the grid
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I do it the same, after setting 0 the same way on the crank degree wheel.
Yeah, it's got a smallblock.
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Re: Degreeing a cam in..
[Re: BobsProFab]
#437226
08/13/09 09:52 PM
08/13/09 09:52 PM
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Joined: Nov 2003
Posts: 7,348 Mt.Vernon ,Ohio
VernMotor
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Posts: 7,348
Mt.Vernon ,Ohio
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Quote:
i do it @ .050 before and after max lift add then divid by 2
Bob
I did that also..it come out the same way..
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Re: Degreeing a cam in..
[Re: Dodgem]
#437227
08/13/09 09:54 PM
08/13/09 09:54 PM
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Joined: Nov 2003
Posts: 7,348 Mt.Vernon ,Ohio
VernMotor
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Quote:
I like where you are going to degree it help the big girl get moving!!!
Yea I had it at 104.5 ..thought this might help
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Re: Degreeing a cam in..
[Re: VernMotor]
#437228
08/13/09 10:01 PM
08/13/09 10:01 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
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Posts: 52,972
Romeo MI
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Quote:
Ok let talk about this some..I wanted my cam in at 102. numbers are intake open at 32 deg and close at 56.5 . that is @ .050 after opening and .050 before closing. Now there are two-three ways to do this.. Not saying any one way is wrong. This is how I do it.. might be wrong ??
add 32+56.5 + 180 = 268.5 div by 2 =134.25 - 32 =102.25 show me your numbers and how you do it.
Jamie thats the same way I check the numbers but when I install it I sorta cheat. I have a gear drive so I would (in your case) set the crank to 102 and have the #1 intake at the top with my indicator on it and slide the idler gear on... then make the before and after(.050) checks to see if its correct and adjust if needed
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Re: Degreeing a cam in..
[Re: Hunted Duck]
#437229
08/13/09 10:05 PM
08/13/09 10:05 PM
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Joined: Dec 2007
Posts: 10,542 BROOK PARK, OH
WILD BILL
Senior Member of the Junior Dragster Club
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Senior Member of the Junior Dragster Club
Joined: Dec 2007
Posts: 10,542
BROOK PARK, OH
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Quote:
Quote:
i do it @ .050 before and after max lift add then divid by 2
Bob
This is how I do mine also.
Make that three
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Re: Degreeing a cam in..
[Re: WILD BILL]
#437233
08/13/09 10:32 PM
08/13/09 10:32 PM
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Joined: Nov 2003
Posts: 7,348 Mt.Vernon ,Ohio
VernMotor
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Quote:
Quote:
Quote:
i do it @ .050 before and after max lift add then divid by 2
Bob
This is how I do mine also.
Make that three
One thing comes in to play here is how your degree wheel reads ..my is broke in to 90 deg segments...not all degree wheels are this way.
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Re: Degreeing a cam in..
[Re: VernMotor]
#437234
08/13/09 10:48 PM
08/13/09 10:48 PM
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Joined: Aug 2003
Posts: 43,292 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,292
Bend,OR USA
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Your doing it the way the cam companys want you to I don't like doing the lobe centers that way so I do it at the valve retainers, I also always check the exhaust after getting the intake lobe center where I want it. This makes sure the cam lobe centers are ground correctly on both lobes, the exhaust lobe center should be retarded the exact same amount the intake lobe is advanced. IE Lobe seperation angles are 108, you install the cam with four degrees advance on the intake lobe, which means the intake lobe is installed at 104 max lift after top dead center, the exahust lobe max lift should be exactly at 112 BTDC
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Degreeing a cam in..
[Re: VernMotor]
#437235
08/13/09 10:50 PM
08/13/09 10:50 PM
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Joined: Dec 2007
Posts: 10,542 BROOK PARK, OH
WILD BILL
Senior Member of the Junior Dragster Club
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Senior Member of the Junior Dragster Club
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BROOK PARK, OH
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Ari440
First you need to find true TDC. Use a stop and bring the piston up to it and record the reading (i.e. 10* to the right of 0). Now go backwards till the piston hits the stop. If the reading is the same (10* to the left of 0) you have TDC. If not adjust the pointer (or move the wheel) till the #'s are the same on either side of 0 TDC.
Now place your dial indicator on the intake liffter. Bring the lifter to max lift and zero the indicator. Now rotate untill you read .050 and record the #. Rotate back to 0 (max lift) and continue till you read .050 the other way. Record this #.
Add the 2 #'s togheter and divide by 2 and that is your intake CL.
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Re: Degreeing a cam in..
[Re: WILD BILL]
#437236
08/13/09 11:09 PM
08/13/09 11:09 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
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Romeo MI
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Quote:
Quote:
Quote:
i do it @ .050 before and after max lift add then divid by 2
Bob
This is how I do mine also.
Make that three
I do the install like you guys are saying with the .050 before and after, add then /2 For what Cab is saying about checking at the valve, I dont usually check it there.... I just advance the cam basically to give more torque and compensate for the valve train loss
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Re: Degreeing a cam in..
[Re: Ari440]
#437240
08/14/09 07:16 AM
08/14/09 07:16 AM
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Joined: Dec 2007
Posts: 10,542 BROOK PARK, OH
WILD BILL
Senior Member of the Junior Dragster Club
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Senior Member of the Junior Dragster Club
Joined: Dec 2007
Posts: 10,542
BROOK PARK, OH
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Quote:
THANK YOU VERY MUCH BILL
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