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Re: Pro Porting Xmas Tree For SX150 3/4th Gear Fix
Posted: Wed May 23, 2012 9:58 pm
by turbovan
As mentioned the new billet tree is made from EN36b high grade steel used very commomly for gears, the original Italian and Spanish trees were tested (thanks! you know who you are)and found to be made of this material, almost the same composition of materials used for many years! EN36b can be case hardened and then tempered back to retain a hard wearing outer skin, typically 20 thou thick, but tough inside to absorb shock loading. So the new tree is made from the same material as before. The gear trees are then cryogenically treated to enhance the hardening process and make the material tougher by some 25%. The all important percentage drops are 1-2 28.86%, 2-3 25.54% 3-4 18.7% these percentage drops are closer than the pacemaker gears which are 30.8%, 27.3%, 19.65%, the nicest thing about this tree is that you can use your sx,gp 150 box 1,2,3 50, 42, 39, and a gp200 4th 36T. Harry has also made a replica MSC close ratio tree 11, 14, 16, 18 from spanish 150 trees and new 3rd and 4th made in one piece and heat shrunk and tig welded on with very special rods, this was complex to do and time consuming!! but the finished result is cryoed and very well made. The billet trees are on the road and performing like they should!! pics of the msc cr tree to follow.
Re: Pro Porting Xmas Tree For SX150 3/4th Gear Fix
Posted: Wed May 30, 2012 3:54 pm
by turbovan
Re: Pro Porting Xmas Tree For SX150 3/4th Gear Fix
Posted: Thu Jun 28, 2012 2:25 pm
by fishi
anybody knows where to order this ??
Re: Pro Porting Xmas Tree For SX150 3/4th Gear Fix
Posted: Thu Jun 28, 2012 2:54 pm
by joespeed
fishi wrote:anybody knows where to order this ??
and a price?
Re: Pro Porting Xmas Tree For SX150 3/4th Gear Fix
Posted: Thu Jun 28, 2012 3:04 pm
by soulsurfer
Harry Barlow, Pro-Porting, £175.
Re: Pro Porting Xmas Tree For SX150 3/4th Gear Fix
Posted: Thu Jun 28, 2012 3:30 pm
by fishi
how can I order ?
no homepage at all !!!
Re: Pro Porting Xmas Tree For SX150 3/4th Gear Fix
Posted: Thu Jun 28, 2012 3:42 pm
by soulsurfer
Re: Pro Porting Xmas Tree For SX150 3/4th Gear Fix
Posted: Thu Jun 28, 2012 3:42 pm
by fishi
The replica MSC close ratio tree 11, 14, 16, 18 from spanish 150 trees and new 3rd and 4th is the mentioned "" new Pro Race gear tree "" ?
which loose gaers would be needed for the 11/14/16/18 Xmas tree ?
Thankx
Re: Pro Porting Xmas Tree For SX150 3/4th Gear Fix
Posted: Fri Jun 29, 2012 8:34 am
by Special X
fishi wrote:The replica MSC close ratio tree 11, 14, 16, 18 from spanish 150 trees and new 3rd and 4th is the mentioned "" new Pro Race gear tree "" ?
which loose gaers would be needed for the 11/14/16/18 Xmas tree ?
Thankx
Loose Gayers!?
This isn't a dating site Fishi.
Re: Pro Porting Xmas Tree For SX150 3/4th Gear Fix
Posted: Fri Jun 29, 2012 10:01 am
by Supereibar
what a turn for the books! It would be nice to get some use of the Spanish Special gearbox as well...
