Restart the rebuild
So continuing on with porting, the intakes are "done" both port and bowl side. Tried to smooth out as much as possible at 80 grit. Hand scrubbed the ssr.
Then to the exhaust, I hadn't touched them since I started on them a couple years back.
As I mentioned in another thread, #2 exhaust is is pretty close. All I want to do is smooth/polish without changing shape.
After "finishing" 2 and 4 exhaust, I figured I would measure runner volume on #2 int/ex . With my DIY cc kit, I measured 166cc intake and 70cc ex. Those are approx lol. I used alcohol and food coloring. Already had kit from cc'ing comb chambers. Gradually filled to top, put "lid" on with vaseline smeared around port. And forced air bubble out.(2 holes and vaseline is a must!) :eek: :lol:
Based on valve sizes(I read a % thing somewhere),
2.02 int 166cc runner vol =83%??
1.60 ex 70cc runner vol =43.75%
Advice/suggestions? Glaring problems?
As I mentioned the int are done both sides. Ex are almost there. #2 done both sides. The goal in my opinion is to mimic #2 and 4 ex as best I can. Hopefully smoothing the finish and leaving the shape alone!
Thanks all.
Oh I noticed a "decent" sized lip around the intake seat, chamber side. I hadn't touched(wasnt gonna) combustion chambers, but thoughts on laying it back, getting rid of it? In the pic with red straw.
Thanks again.
So continuing on with porting, the intakes are "done" both port and bowl side. Tried to smooth out as much as possible at 80 grit. Hand scrubbed the ssr.
Then to the exhaust, I hadn't touched them since I started on them a couple years back.
As I mentioned in another thread, #2 exhaust is is pretty close. All I want to do is smooth/polish without changing shape.
After "finishing" 2 and 4 exhaust, I figured I would measure runner volume on #2 int/ex . With my DIY cc kit, I measured 166cc intake and 70cc ex. Those are approx lol. I used alcohol and food coloring. Already had kit from cc'ing comb chambers. Gradually filled to top, put "lid" on with vaseline smeared around port. And forced air bubble out.(2 holes and vaseline is a must!) :eek: :lol:
Based on valve sizes(I read a % thing somewhere),
2.02 int 166cc runner vol =83%??
1.60 ex 70cc runner vol =43.75%
Advice/suggestions? Glaring problems?
As I mentioned the int are done both sides. Ex are almost there. #2 done both sides. The goal in my opinion is to mimic #2 and 4 ex as best I can. Hopefully smoothing the finish and leaving the shape alone!
Thanks all.
Oh I noticed a "decent" sized lip around the intake seat, chamber side. I hadn't touched(wasnt gonna) combustion chambers, but thoughts on laying it back, getting rid of it? In the pic with red straw.
Thanks again.
