Stock pistons with hotrod cams and headwork question
#11
#12
Originally Posted by pegskraper
Also my buddy said to the best of his knowledge his bike currently is sitting at 10:1 compression, but that's with s&s pistons on a 95" kit and those heads. I'm guessing the s&s pistons are higher compression than the stock ones..I assumed that decking the heads would increase the compression on my stock 88 but I'm not sure what the actual ratio would be.
Originally Posted by pegskraper
Getting the combustion chamber cc'd would require me taking the piston to tdc then filling it with alcohol am I right? Not sure what goes on in this process. I'm willing to have a "pretty good" cam based on expert guesswork based on my situation. I guess I'm more worried about cratering the engine with an insane cam that causes valve to piston contact.
You will need to re-jet the carb.e-jetting carb. IMHO, worth taking the heads $250 and giving it a shot; the 88" OEM heads are a real bottleneck.
Not discounting or disagreeing with any of the previously posted info; you asked for options so I gave you one...............
#13
Join Date: Apr 2016
Location: Grande Prairie Alberta
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As I said before the heads are currently on my friend's bike, he is going to be pulling them once the snow flies. I'm just strategizing or trying to plan what I'm going to do when it comes time for me to fix my cam tensioners and cam the bike at the same time. I live in grande prairie alberta, its a 5 hour drive to edmonton where the headwork was done so not the easiest thing to do in order to check combustion chamber specs, etc. I'm planning on doing the work myself in my garage when it's -20c with 3 feet of snow
#14
...............or bore to 98" then you can set it up to have great power from bottom to top, and many cams can accomodate then.
Your going to be spending money on a top end gasket set(approx $110.00).....so at that point your only $540.00 away from pistons/cylinder boring/ring end gaps set, and installed, here.
Scott
Your going to be spending money on a top end gasket set(approx $110.00).....so at that point your only $540.00 away from pistons/cylinder boring/ring end gaps set, and installed, here.
Scott
#15
As I said before the heads are currently on my friend's bike, he is going to be pulling them once the snow flies. I'm just strategizing or trying to plan what I'm going to do when it comes time for me to fix my cam tensioners and cam the bike at the same time. I live in grande prairie alberta, its a 5 hour drive to edmonton where the headwork was done so not the easiest thing to do in order to check combustion chamber specs, etc. I'm planning on doing the work myself in my garage when it's -20c with 3 feet of snow
http://www.diyporting.com/cc.html
#16
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