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Author Topic:   camshaft ??
mikes82GT
Journeyman

Posts: 52
From: Vancouver, Wa
Registered: Dec 2004

posted 01-10-2005 12:36 AM     Click Here to See the Profile for mikes82GT     Edit/Delete Message   Reply w/Quote
How can I measure the lift and duration of a cam that I bought at a swap meet a year ago?
It's supposed to be a b303 cam and the lift at the valve I got when I measured it with dial calipers and multiplied by 1.6 and 1.7(rocker arms ratio) came out to be .3792"/.3968 @ 1.6 and .4029"/.4216" @ 1.7.
Does this make sense?
I think I was screwed out of $15.00
It came in a box that said M-6250-B303 SVO camshaft.
ALSO, the guy said he wasn't sure what it was as he was selling it for a friend.
WHAT cam do I have? I know it's a roller as it has the wide flat ramps as compared to the other cams I looked at.
Just behind the dizzy gear on it is an A and three dots.
If anyone knows what I have, any info would be greatly appreciated.

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Moneymaker
Administrator

Posts: 26813
From: Lyons, IL, USA
Registered: May 99

posted 01-10-2005 11:07 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
You can't accurately measure a cam with dial calipers.
You need to use a dial indicator and roll the cam.

------------------
Alex Denysenko
Co-Administrator and Moderator

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mikes82GT
Journeyman

Posts: 52
From: Vancouver, Wa
Registered: Dec 2004

posted 01-12-2005 03:43 PM     Click Here to See the Profile for mikes82GT     Edit/Delete Message   Reply w/Quote
How can the cam be held accurately in one spot while being rolled? Is there a fixture or something for this?

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Moneymaker
Administrator

Posts: 26813
From: Lyons, IL, USA
Registered: May 99

posted 01-12-2005 04:06 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
You can get pretty close on a flat bench.

------------------
Alex Denysenko
Co-Administrator and Moderator

NHRA/IHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28

The Barry of BarrysGrrl

Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com

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mikes82GT
Journeyman

Posts: 52
From: Vancouver, Wa
Registered: Dec 2004

posted 01-14-2005 12:47 AM     Click Here to See the Profile for mikes82GT     Edit/Delete Message   Reply w/Quote
I guess I can put the cam and a couple of lifters in my block and measure it that way.

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Moneymaker
Administrator

Posts: 26813
From: Lyons, IL, USA
Registered: May 99

posted 01-14-2005 11:55 AM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Use the edge of the lifter.

------------------
Alex Denysenko
Co-Administrator and Moderator

NHRA/IHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28

The Barry of BarrysGrrl

Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com

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mikes82GT
Journeyman

Posts: 52
From: Vancouver, Wa
Registered: Dec 2004

posted 01-14-2005 10:20 PM     Click Here to See the Profile for mikes82GT     Edit/Delete Message   Reply w/Quote
Use the edge of the lifter?? I'm not sure I understand what you mean.

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Moneymaker
Administrator

Posts: 26813
From: Lyons, IL, USA
Registered: May 99

posted 01-14-2005 10:43 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
When checking cam lift with a hyraulic lifter, place the tip ont he dial indicator on the edge of the lifter, not the center of the plunger.
This will give you an accurate reading.

------------------
Alex Denysenko
Co-Administrator and Moderator

NHRA/IHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28

The Barry of BarrysGrrl

Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com

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mikes82GT
Journeyman

Posts: 52
From: Vancouver, Wa
Registered: Dec 2004

posted 01-15-2005 02:47 AM     Click Here to See the Profile for mikes82GT     Edit/Delete Message   Reply w/Quote
Ok.
I understand now what you mean. Thanks,I will do that and let you know what I come up with on monday or tuesday after I get my dial indicator from work.

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mikes82GT
Journeyman

Posts: 52
From: Vancouver, Wa
Registered: Dec 2004

posted 01-19-2005 12:02 AM     Click Here to See the Profile for mikes82GT     Edit/Delete Message   Reply w/Quote
The specs I got when I did the above were: .2370" intake and .2450" exhaust.
I also checked the cam that was in the block when I pulled it out of the Lincoln Town Car and it came out to be: .2375" intake and .2475" exhaust.

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Moneymaker
Administrator

Posts: 26813
From: Lyons, IL, USA
Registered: May 99

posted 01-19-2005 12:26 AM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Sounds like a bone stock non HO cam to me.

------------------
Alex Denysenko
Co-Administrator and Moderator

NHRA/IHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28

The Barry of BarrysGrrl

Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com

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mikes82GT
Journeyman

Posts: 52
From: Vancouver, Wa
Registered: Dec 2004

posted 01-19-2005 05:17 PM     Click Here to See the Profile for mikes82GT     Edit/Delete Message   Reply w/Quote
Thanks Alex. I knew it was too good to be true when I saw it but figured what the heck, I had some $$ to play around with and saw a lot of stuff at the swap meet but nothing that caught my attention, save for this cam.
The swapmeet is every year in april? at the portland expo in portland oregon.
Maybe I'll go as a seller this year and sell some of my chevy stuff for the $$ to finish my 302,hehehe.

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Kyle
Gearhead

Posts: 426
From: Sumner, WA
Registered: Dec 2001

posted 01-19-2005 10:01 PM     Click Here to See the Profile for Kyle   Click Here to Email Kyle     Edit/Delete Message   Reply w/Quote
There's a place called Delta Cams in Tacoma that will grind you a hyd. roller camshaft for about $80, as I recall. You can get whatever ramp profile you want (that they have available) for the same price, and you can get it in whatever LSA you want. Only thing is, the cam is a regrind. I have bought 3 from them- one hyd. flat, one solid flat, and one hyd. roller- all are great quality and I have had zero problems. Search the yellow pages or the internet for their phone#.

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mikes82GT
Journeyman

Posts: 52
From: Vancouver, Wa
Registered: Dec 2004

posted 01-20-2005 12:50 AM     Click Here to See the Profile for mikes82GT     Edit/Delete Message   Reply w/Quote
Thanks for the suggestion, Kyle.
Its Delta Camshaft Inc. and I will call them in a few days using their 1-800 #
What is the life expectancy of any reground cam vs a new cam?
My combination is as follows:

'87 302 overbored .030"

# L2482F speed pro pistons, 9.2:1 cr. with the E7TE heads listed below

stock rods with arp wave loc rod bolts

crank reground to .010 undersize on rods and mains

'87 stock heads slightly ported (e.g. smog ports ground flush on exhaust, cleanup of the bowls, minimizing of the valve stem protrusions,and intake port matching)

'88 factory exhaust headers and 4 cat H-pipe

This will be going into my 1982 mustang with a T5 trans and 7.5" 3.27 geared rear

I'm open to camshaft suggestions that will maximize my fuel mileage and give me decent (13/14 sec) times in the 1/4

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Moneymaker
Administrator

Posts: 26813
From: Lyons, IL, USA
Registered: May 99

posted 01-20-2005 11:23 AM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
I have some stock FoMoCo HO roller cams if you are interested. .445 lift with 1.6 rocker ratio.
$75

------------------
Alex Denysenko
Co-Administrator and Moderator

NHRA/IHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28

The Barry of BarrysGrrl

Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com

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