Herr Jugs Racing

wow, i cant believe noone has bought this yet. it is a nice machine and has been for sale for a while.
 
notice he says once that sleeve is shot....it'll just end up a regular blaster
 
What was the biggest bore kit for the Blaster? Wasn't it a Trinity 290cc Kit or something rediculous like that?
 
285, and if i remember correctly required a +6 crank to achieve those numbers
and there's a reason they were short lived and not produced anymore, extreme heat issues
 
What was the biggest bore kit for the Blaster? Wasn't it a Trinity 290cc Kit or something rediculous like that?

Displacement of a cylinder =

V = πR²H

V = 3.14 x (73/2)² x 63

V = 3.14 x 36.5² x 63

V = 3.14 x 1332.25 x 63

V = 263545.695

Move the decimal point three places to the left and you're left with 263.5cc's with a 73mm bore and a +6 stroke.

In order to get a 285cc engine with a +6 stroker crank, you need a 76mm bore. You can imagine jumping 10mm in bore size from stock with ever decreasing amounts of aluminum to take away that heat. Sure, it can be done but to what end? Plus, the cases have to be bored out to accept that sleeve. Once you've done that to a set of cases, you've got to stick with it because then there's no aluminum behind a regular sleeve to support it...

285cc's:

V = 3.14 x 38² x 63

V= 285.652

Add that to the fact that +6 stroker cranks are exceedingly rare and only exist (thanks Chutzell for this nugget of info) because the crank manufacturing facility Vito's was first using screwed up and didn't take into consideration that a 3mm stroker crank only need the pin offset 1.5mm, not 3mm.
 
Displacement of a cylinder =

V = πR²H

V = 3.14 x (73/2)² x 63

V = 3.14 x 36.5² x 63

V = 3.14 x 1332.25 x 63

V = 263545.695

Move the decimal point three places to the left and you're left with 263.5cc's with a 73mm bore and a +6 stroke.

In order to get a 285cc engine with a +6 stroker crank, you need a 76mm bore. You can imagine jumping 10mm in bore size from stock with ever decreasing amounts of aluminum to take away that heat. Sure, it can be done but to what end? Plus, the cases have to be bored out to accept that sleeve. Once you've done that to a set of cases, you've got to stick with it because then there's no aluminum behind a regular sleeve to support it...

285cc's:

V = 3.14 x 38² x 63

V= 285.652

Add that to the fact that +6 stroker cranks are exceedingly rare and only exist (thanks Chutzell for this nugget of info) because the crank manufacturing facility Vito's was first using screwed up and didn't take into consideration that a 3mm stroker crank only need the pin offset 1.5mm, not 3mm.

i looked at all that very technical info...posted by "the mrs."
and almost replied......."thanx james"
sumthin told me that was you
 
i looked at all that very technical info...posted by "the mrs."
and almost replied......."thanx james"
sumthin told me that was you

LOL she left herself signed in on the laptop and my desktop went to acting stupid this morning so I popped in on here and didn't realize...

Oh well, I got it right now!
 
Yea I didn't do any math, but I never believe claims much anyway ... on further review it's a re-sleeve anyway so I don't know if it's the best price ...
 
Some old Trinity advertisements from the past... I see a 240, 265, 285, 295, and 300cc kits, but i also remember seeing advertisements and people claiming to have 280, 305, and 310cc kits....

SCAN0142.jpg

SCAN0143.jpg

SCAN0144.jpg

bbinfo2.jpg
 
bronco, you're like the resident librarian here posting all these old mag articles,
most of which i remember from the late 90's
 
Too bad nobody made a liquid-cooled BB kit for the Blaster. Kinda like a DT 200 swap, which would just bolt right on and run rather than having to be pieced together.