Super Jet Questions about 701 porting and bore size

Y

yotaman1229

Location
Spokane WA
So i bought a 61x/62t from a member here who didn't have much info on it. The cylinder is a 61X bored to 85mm. Using 760 1mm oversize Wiseco pistons. Looks to be ported as well. And the cases look ported. So my question, is this OK to run? The sleeve out of the bottom of the block is only about 2mm thick. And would this setup produce any power? I am new to porting and don't know what to look for!
Here are some pictures. Any help would be greatly appreciated. I can take more pictures as well. Just want to figure out if i should put this together for my ski 2010 SJ

IMG_1078_zpsnlosixr9.jpg

IMG_1080_zpsidtmycad.jpg

IMG_1079_zpsuq3ncywj.jpg

IMG_1081_zpssqa1q5dq.jpg

IMG_1082_zpsrdplpens.jpg

IMG_1083_zpsbomh8e7t.jpg

IMG_1085_zpsgxlz6lvb.jpg

IMG_1084_zpsrd6mtln9.jpg
 
pigpen

pigpen

Location
kalispell
Got the exact same engine setup in my ski. Only mine has BB sleeves. Running 38's and a b pipe, hits hard on the bottom end.


Sent from my iPhone using Tapatalk
 
Y

yotaman1229

Location
Spokane WA
The only thing I'm worried about is the sleeve thickness. But the ski has ran this way for a while. I dont do any WOT. I dont want to get it together and BOOM lol
 
ajmps1

ajmps1

Location
Pa
I was always told if your finger nail can hang up on a score mark in a sleeve it's time to hone or move up a piston size. At that bore your only hope is to run a hone through it and see what you get or resleeve and re port. Can't say how it ran though without measuring the port timing and then you'd need to show that timing to someone other than me.
 
Blue

Blue

Judging your cheapness
Location
St Cloud Florida
If you like contact @JetManiac we can install a fresh set of used take out sleeves and port them to match your cylinder then bore them from 82mm to 84mm with new pistons. Your cases dont need bored unless ur installing a big bore sleeve.

Sent from my SAMSUNG-SM-N920A using Tapatalk
 
ajmps1

ajmps1

Location
Pa
Blue said:
If you like contact @JetManiac we can install a fresh set of used take out sleeves and port them to match your cylinder then bore them from 82mm to 84mm with new pistons. Your cases dont need bored unless ur installing a big bore sleeve.

Sent from my SAMSUNG-SM-N920A using Tapatalk
Click to expand...

Who ya gonna call, jetmaniac and blue dananana nana banana Nana
 
newbee

newbee

Nuklear6 said:
Wow 85mm on stock 61x sleeves!!! Don't invest too much into parts you put inside this, your very likely to have sleeve issues. I go 84 all the time and one time went 84.25 to save a friends cylinder but that is MAXX IMHO

Chuck Palmucci
CPT Enterprise LLC
609 510 3062
Click to expand...

I have had good work come from Chuck. Just get on his list fast
 
Y

yotaman1229

Location
Spokane WA
So im 99.99% sure these are 760 sleeves based off the measurements. Now i have been measuring the exhaust port to see where it is. Seems pretty high to me. Here are some measurements:
Total cylinder height 4.685"
Top of exhaust port to top of cylinder 35.50MM
Exhaust port height 35.50MM
Exhaust port width 59.50MM

What do you guys think of this?
 
Blue

Blue

Judging your cheapness
Location
St Cloud Florida
Exhaust is way to high. Stoch 760 is usually around 38mm. I would just replace the cylinder. 62t are cheap enough.

Sent from my SAMSUNG-SM-N920A using Tapatalk
 
You must log in or register to reply here.
Top Bottom