Blowsion bb850 sleeve questions

[kevheslop]

Hi all

I'm looking at the bb850 set blowsion sell and have a few questions. They say they come prepared ported etc. And that you fit them to 62t/760 blaster barrels but as we know these cylinders are ported higher on the exhaust side and don't give as much bottom end hit as say the 61x. So by fitting for these sleeves do they lower the head height of the exhaust ports similar to those on the 61x? I am going to build a motor and I don't want to purchase these if they will be of no use. Thanks guys and gals

 

[Jet_jase]

Mate for the money you'll spend building this you'll be better off getting a Loki baby stroker. Dan obrien's is an animal.

 

[Jet_jase]

@phillboy What's flip flop up to now

 

[phillboy]

Who knows what flip flop up to mate he don't no him self lol ???? He best when he's my tote boy in comps


Sent from my iPad using Tapatalk

 

[kevheslop]

As for my business of what I wanna do and enjoy tinkering with ..pipe down and Phillip I am always happy to be tote boy at the comps x

 

[yamabro]

These sleeves are not a re sleeve and go ride, you'll need...
Cylinder and cases (top case) bored to accept the bigger sleeve.
Cylinder port matched to the bigger exhaust and transfer/boost ports.
Modified CR500 pistons
(2) base gaskets and a cylinder spacer.
Cases ported to effectively get the performance and significant power gain out of the big bore.

 

[phillboy]

Flip flop a very good tote boy you are to xxxxxx


Sent from my iPad using Tapatalk

 

[kevheslop]

These sleeves are not a re sleeve and go ride, you'll need...
Cylinder and cases (top case) bored to accept the bigger sleeve.
Cylinder port matched to the bigger exhaust and transfer/boost ports.
Modified CR500 pistons
(2) base gaskets and a cylinder spacer.
Cases ported to effectively get the performance and significant power gain out of the big bore.

Hey bud. i have cylinders, cases, i understand completely its not a plug and play type setup. I can get the cases machined easily enough at work. My question is why would i run a cylinder spacer on this setup? i thought the cylinder spacer was mainly used on stroker motors? thanks for the input.

 

[yamabro]

The difference in piston height

 

[kevheslop]

yes just found this info dude, thank you for the heads up though. appreciate it

 

[Wizards Powersports]

The Blowsion 850 sleeve exhaust port height is lower than stock 760, it hangs down probably 2mm or so. Lots of porting and work to get it set up, but if you have the resources could potentially be a good setup.

 

[Roseand]

@mrfixitman760

Sent from my SM-G920V using Tapatalk

 

[cookn]

There is very little info on these setups. I looked into building one and anyone that has built them doesn't seem to want to give up the specs. I as well had the ability to machine everything required and I found out Quebec jet crew had built a few but wouldn't give up the the exact specs to optimize port timing and what cylinder spacer and domes were required. When I emailed blowsion I got alot of one word replys and just gave up on the idea of it being a budget big bore.