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-   -   1988 Mustang GT "Max" Project freebox (http://www.motorgen.com/forum/showthread.php?t=28546)

Shaolin Crane 09-18-2013 11:43 PM

So I had to pay the piper, luckily I found someone local with them in stock. Gave me a discount and used our resale card to a price of $1488, anywho, here they are







enkeivette 09-19-2013 06:22 AM

Shiny... whats your address? :p

94cobra69ss396 09-20-2013 08:11 AM

How much did you get done last night?

Shaolin Crane 09-20-2013 08:43 AM

Quote:

Originally Posted by 94cobra69ss396 (Post 121830)
How much did you get done last night?

Not a lot, I couldn't find the keyway for the crank. So I spent a couple hours putting together the canopy for the gray car.

Shaolin Crane 09-21-2013 03:54 AM

Degreed the camshaft tonight. it was a complete cluster fuck, but for other reasons. anywho, Ron was having an issue with this one coming into spec. I started off by installing it at the 6* advanced like he did. here's what I got
112.5 LC
215/220
-5 & 40
-1.5 & 41

These are no where near the specs on the card, so I installed it at the 4* like in my motor and here's what I got
114 LC
217/217
-5 & 42.5
-5 & 42.5

So like I thought the cam was too advanced and makes sense why it came in at 112. Now it's right on the money and came in perfectly.

94cobra69ss396 09-21-2013 06:18 PM

That doesn't make sense. If you retard the cam 2 degrees the the IO would occur 2 degrees later and would be -3 instead. The duration at 0.050 will be the same no matter whether the ICL is 112 or 114.

Shaolin Crane 09-21-2013 08:30 PM

Then the only answer is the cam is asymmetrical. I checked it, over and over, did it probably 20 times tconfirrm, it was right on.

94cobra69ss396 09-22-2013 10:45 AM

That doesn't explain it. An asymmetrical lobe just has a different closing profile than opening profile. The IO would still occur at -3 if you retarded it 2 degrees and the duration at .050 would still be 215/220 no matter what the ICL is.

Shaolin Crane 09-22-2013 11:02 AM

Quote:

Originally Posted by 94cobra69ss396 (Post 121900)
That doesn't explain it. An asymmetrical lobe just has a different closing profile than opening profile. The IO would still occur at -3 if you retarded it 2 degrees and the duration at .050 would still be 215/220 no matter what the ICL is.

I have no clue then, I only degreed it once at 6* then a few dozen times at 4*
I even installed it at 8* to see the change at it was at 110.5 but didnt do the rest, It was about 3 am and I was low on sleep to begin with. Put it back at 4* and it came in the same every time, -5 and 217. I'm not going to pull it back out to try and track it down.

Vettezuki 09-22-2013 02:21 PM

Don't know much about cams other than what they do generally. What's IO and ICL?


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