Author Topic: 20r/22r, a few issues need some help/advice  (Read 21527 times)

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live4soccer7

  • Offline Rock Crawl'n
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Re: 20r/22r, a few issues need some help/advice
« Reply #30 on: Jun 16, 2011, 02:52:21 PM »
~2300 ft.

Doesn't it appear that the plugs show signs of running lean? The whitish color on the probe and the extremely white part (not sure on the names). I would think larger air jets would allow for a leaner environment.

I sucked up and got the pro torque cam from LC with a 13 degree overlap, 102 intake centerline and a 118 exhaust centerline. This should allow me to fill the cylinder much better than my current cam. The pro torque cam has a lift of .455 and will work with stock valve train and with the stock 20r/22r setup. I will also be able to degree the cam 100% correct and adjust from there if I need to move the power band.

I figured that since I have some smaller jets with my old carb then I wouldn't need the economy jet set from lc, so I went with the performance jet kit. That should allow me a great combination of jets between the kit and the two carbs I have now.

This should allow me to get this thing running pretty dang well for what it is and I can hopefully finally put it all to rest once tuned.

So, what kind of issues could the slight piston slap (mentioned on the first post) cause and should it be attended to or just leave it. I really only want this engine in the truck for maybe 5yrs and probably won't see a ton of miles. I was reading around and it seems to address the piston slap it requires a rebuild. Is this true?

 
 
 
 
 

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