ascMcLaren Enthusiasts

[negusm]

[tfs2121]

i could exsplane but i have a very very hard time putting what i am trying to say into words. after you strugle reading through what i am trying to say you will still be clueless. maybe i can find a link online...
_________________
~Peter
1985 ASC McLaren Coupe

[tfs2121]

ahhhh sweet copy and paste... i love google.

"Mike the cam lobe from top of point to heel (up and down), then mike it 90 degrees from that (sideways). Subtract the small dimension from the large"

the numbers might be off a bit but should be close to the .277" or .300"



B-C=A easy!

hope this helps!!! looks like the hard part will be learing how to read a mike
_________________
~Peter
1985 ASC McLaren Coupe

[86capriasc]

I will try it with my dial caliper.

Okay, I get .310 difference.
_________________
1986 ASCMclaren #108
stock E7 short block, explorer intake, 65mm TB, home built Gt45 turbo kit, 3.08s, Borla cat-back, '05 slot maf, Gt-40p heads, TFS1 cam, 80lb injectors, E85, Qaurterhorse tuner.

[86capriasc]

Looks like I may be doing a cam swap soon. I just don't know if the valves will clear the pistons on the stock 89 block with 1.7 RR.
_________________
1986 ASCMclaren #108
stock E7 short block, explorer intake, 65mm TB, home built Gt45 turbo kit, 3.08s, Borla cat-back, '05 slot maf, Gt-40p heads, TFS1 cam, 80lb injectors, E85, Qaurterhorse tuner.

[tfs2121]

.310" humm... i would think that you would have gotten a reading alot closer to .300" like .302" or .299" what did you use a mike or a caliper?
_________________
~Peter
1985 ASC McLaren Coupe

[86capriasc]

I used a caliper.
_________________
1986 ASCMclaren #108
stock E7 short block, explorer intake, 65mm TB, home built Gt45 turbo kit, 3.08s, Borla cat-back, '05 slot maf, Gt-40p heads, TFS1 cam, 80lb injectors, E85, Qaurterhorse tuner.

[tfs2121]

an E303 cam has a lift of .311"

i dont know what you got... its for sure not a stock cam

_________________
~Peter
1985 ASC McLaren Coupe

[tfs2121]

[86capriasc]

The caliper I have is old so it may not right on either. I will try took take it down to my buddies house later tomorrow or over the weekend. He is a machinist so he has better tools than I. I will have him mic it. He can check both intake and exhaust for me. I'm not sure which one I checked.
_________________
1986 ASCMclaren #108
stock E7 short block, explorer intake, 65mm TB, home built Gt45 turbo kit, 3.08s, Borla cat-back, '05 slot maf, Gt-40p heads, TFS1 cam, 80lb injectors, E85, Qaurterhorse tuner.

[tfs2121]

I and E should be the same if its a B or E cam... sounds like you have a B cam and a crapy caliper. i would for sure have your buddy mic it out for you if you plan on installing it. he might even degree it for you!
_________________
~Peter
1985 ASC McLaren Coupe

[86capriasc]

Just checked the adv.
Ford Racing hydraulic roller camshaft M-6250-B303 that provides significant horsepower increases above 4000 RPM and good low-end torque. Valve lift is .480" on both intake and exhaust. Duration at .050" is 224 degrees on both intake and exhaust




Sorry i did my math wrong

1.42
-1.71 as written on my paper
.31 I had figured.

actual .290
_________________
1986 ASCMclaren #108
stock E7 short block, explorer intake, 65mm TB, home built Gt45 turbo kit, 3.08s, Borla cat-back, '05 slot maf, Gt-40p heads, TFS1 cam, 80lb injectors, E85, Qaurterhorse tuner.

[tfs2121]

yeah ford figuerd in the rocker ratio to get the valve lift of .480"
.300 x 1.6 (rocker arm) = .480" of lift at the valve.

you will have to use a degree wheel to find the duration if you dont know for sure what the cam is.
_________________
~Peter
1985 ASC McLaren Coupe