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4stroker
Joined: 15 Jan 2007
Posts: 1420
Location: North Queensland
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 Posted: Wed Apr 02, 2008 3:30 pm Post subject: re-sleeving... |
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hey guys
ive got some banshee barrels that have a killer port job, but they are on their last bore
the port job is SO killer that there isnt much meat left in the the transfer runners, ie, alot of the aluminium that is in contact with the iron sleeve is gone, the outside of the sleeve has even been made thinner and re-shaped where it drops down into the crank case.
has anyone ever re-sleeved a barrel like this b4? do you think it can be done with all that material missing?
thanks, mark
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2002 SE Banshee |
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Sponsor
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Quad
The Day Starts With OZATV !
Joined: 22 Oct 2006
Posts: 2773
Location: UP FRONT
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| Posted: Wed Apr 02, 2008 4:13 pm Post subject: |
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| yep they bore it all away then refit new bigbore sleve, worked well for me |
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Quad
The Day Starts With OZATV !
Joined: 22 Oct 2006
Posts: 2773
Location: UP FRONT
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| Posted: Wed Apr 02, 2008 4:14 pm Post subject: |
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| the bore looks good use it untill its stuffed , then work on the last bore is 2.5mm over bore |
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4stroker
Joined: 15 Jan 2007
Posts: 1420
Location: North Queensland
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| Posted: Wed Apr 02, 2008 6:06 pm Post subject: |
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yeah the bore is at 66.0mm at the moment, it had want to look good in that photo, coz thats right after they came back from the machine shop!
when using 795 series wiseco pistons the biggest size they make is 66.0mm, i think...
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2002 SE Banshee |
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TUFF AS
Big Bore, Stroked & Bling +
Joined: 09 Jan 2007
Posts: 497
Location: sydney
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| Posted: Wed Apr 02, 2008 6:35 pm Post subject: |
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holy sh!t did you do that port job urself mark?
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07 BANSHEE 91hp atw at the moment
04 WR450F still yet to know hp |
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4stroker
Joined: 15 Jan 2007
Posts: 1420
Location: North Queensland
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| Posted: Wed Apr 02, 2008 7:18 pm Post subject: |
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no mate, they were ported by a local machine shop in my home town.
these are my rz barrels
it looks rough but its supposed to be anyway for the intake. the right cylinder has to run a jet size or two bigger than the left but i think thats fairly normal for something that isnt cnc ported!
as you can see it has massive "boyesen ports" linking the intake direct to the transfers. they are so big extra material had to be added to the outside of the barrels.
they run real hard, and should run even harder after it goes back together with a 4mm crank in it and some proper pipes!
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2002 SE Banshee |
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Quad
The Day Starts With OZATV !
Joined: 22 Oct 2006
Posts: 2773
Location: UP FRONT
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| Posted: Wed Apr 02, 2008 8:02 pm Post subject: |
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| 66.5 is the biggest i can use them the next sleeve ,has tobe used with 68mm pistons |
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4stroker
Joined: 15 Jan 2007
Posts: 1420
Location: North Queensland
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| Posted: Thu Apr 03, 2008 7:41 am Post subject: |
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yeah with normal wiseco pistons the biggest you can go is 66.5mm, but with the 795 series that you use with the long rods, the biggest they make is 66.0mm
and are you saying if you resleeve it, it has to be a big bore sleeve? i didnt think that was the case, pretty sure i can just go and buy new stock size sleeves and have em fitted
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2002 SE Banshee |
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Quad
The Day Starts With OZATV !
Joined: 22 Oct 2006
Posts: 2773
Location: UP FRONT
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| Posted: Thu Apr 03, 2008 8:11 am Post subject: |
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| tip baster pistons |
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4stroker
Joined: 15 Jan 2007
Posts: 1420
Location: North Queensland
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| Posted: Thu Apr 03, 2008 8:23 am Post subject: |
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yeah i know, but the different shape of the blaster piston crown wont suit the domes im having made for the 795s... so once it needs bigger pistons than 66mm, itll need new domes too. which wouldnt be so bad i guess, just a pain in the ass!
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2002 SE Banshee |
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Quad
The Day Starts With OZATV !
Joined: 22 Oct 2006
Posts: 2773
Location: UP FRONT
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| Posted: Thu Apr 03, 2008 8:29 am Post subject: |
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| get the domes lathed to suit . i did worked well |
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4stroker
Joined: 15 Jan 2007
Posts: 1420
Location: North Queensland
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| Posted: Thu Apr 03, 2008 8:40 am Post subject: |
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yeah mate the domes are bein cnc machined to suit the stroker crank
then if i change to blaster pistons, the squish angle will need to change, which will throw everything else out of wack (such as combustion chamber volume) so your better off just starting from scratch with another hunk of 6061... otherwise it wont run to its full potential
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2002 SE Banshee |
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Quad
The Day Starts With OZATV !
Joined: 22 Oct 2006
Posts: 2773
Location: UP FRONT
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| Posted: Thu Apr 03, 2008 8:48 am Post subject: |
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| you win |
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4stroker
Joined: 15 Jan 2007
Posts: 1420
Location: North Queensland
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| Posted: Thu Apr 03, 2008 9:21 am Post subject: |
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lol didnt know we were racing, but thanks anyway!
all of this is probably a waste of time considering i could buy your 421 motor and be done with it... but oh well i love tinkering with "profanity removed", so this suits me!
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2002 SE Banshee |
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