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3 minute(s) of a 99 minute read
9-3-2008
It sounds a lot deeper and throaty. It honestly was easy. I actually approached it thinking it was going to be a freaking PITA, and turned out not bad at all.
How long to do the swap... LOL... it was our first time, I was getting feedback and asking questions to Nick, Mike, and Jaymes that I know have already done cam swaps (multiple times) and that ate up some time, but I learned a LOT in the process.
Total time doing the swap was 2 days, 9am till 9pm with breaks. I could do it again in one day, from 8-9pm or finish earlier probably.
Speaking of the swap, to fill in some gaps here:
Again, as I said , you can go to lowes/home depot (I went to lowes) and get METAL rods instead of these wooden rods people are talking about and slap them in to hold the lifters up....
Also, we put the crank into the oven for about 2hours at 250F and then went to 300F for about 30min, pulled it out with some mits ...mmmmm... smell of baking grease & rust & metal , and the durn thing went right on like it was lubed up and ready to go.
Calculating valvetrain stuff, LOL. This was the on the phone for 1-2 hour part. You want a certain pre-load to maintain valvetrain stability/control and such, I will fill in later on this as I have a word document ready, BUT basically you want between 80 thousandTHS and 100 thousandTHS pre-load, will post up word document this afternoon.
NOW, calculating your new throttle body hole, LOL. this is where having a DAD that knows mechanical engineering comes in handy
and all the secrets come out. Lets just say we calculated the area of the stock hole, compared some things on the cam, and came up with a new properly sized hole, and it worked first time. Will also post that up.
dredoggy, if you want to do a cam swap, I will be glad to talk you through it. I also recommend going to Patrick G to get a cam recommendation so he can spec you out something that you will love.
Oh and the new cam, at 800RPM, you can tell is a little lope... just ever so slightly and you can see the motor rock a tad. BUT, at 850RPM you wouldn't even know it. Now, taking the motor down to 700RPM and only 12 degrees of timing, yeh, it lopes but not near as bad as I thought, just barely starts to shake the car.