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Uma Superhead, Increase 28 Hp

NACZ

Super Veteran

Release of the long awaited UMA Superhead for Yamaha T135

Posted by manong on January 2, 2013
8th months ago, We’ve compared the UMA superhead with stock head of Yamaha Sniper.
Now Racingboy Malaysia just announced the released of the Superhead to the public.


It reveals more secret details of the superhead

The most noticeable in the picture above is the OVAL SHAPED exhaust, This shaped is very common in heads used in racebikes.
It gives a better flow of exhaust gas smoothly out of the engine.

The intake and exhaust valves size are still unknown…



Fully customized head made from scratch and not a rework from original t135 head


The super head intake ports are also in semi oval shape , Im just wondering if the intake manifold is also designed for the
superhead, Hopefully its part of the superhead package because the existing uma racing intake manifold has circle shaped
endport so it wont match the semi oval shape intake of the superhead.
But looking at the box, it shows the special intake manifold is included

Racingboy Malaysia, Im still waiting for your response


UPDATE :
Racingboy told me the valve size of super head are
- 23mm INTAKE
- 20mm EXHAUST
also from uma superhead thread discussed YamahaT135.com by botsok, it says it cost usd$500 all in!
that means it includes camshaft, valvespring, manifold.
Public sale is resched for some adjustments of the superhead specs…
expected release is on february 2012




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yalomed

Member
sa tingin nyo ano mas maganda, ito o ung cylinder at cylinder head ng cbr 150 na ikabit sa sniper? hindi lang 28hp un... tapos maging dohc pa ang sniper. ano balita sa motor na un na taga veitnam?
 

NACZ

Super Veteran
sa tingin nyo ano mas maganda, ito o ung cylinder at cylinder head ng cbr 150 na ikabit sa sniper? hindi lang 28hp un... tapos maging dohc pa ang sniper. ano balita sa motor na un na taga veitnam?
Yamaha is yamaha.. i choose yamaha T135 because of Engine Technology & performace..
Why not buy a cbr 150 insted? Just my cent.. ;)
 

yalomed

Member
Yamaha is yamaha.. i choose yamaha T135 because of Engine Technology & performace..
Why not buy a cbr 150 insted? Just my cent.. ;)
because i already have a yamaha sniper, buying a cbr 150 will cost more. im up for upgrading nalang... kung mailagay ung sa cbr na head at cylinder possible maging dohc pa sniper at 69mm bore, pwede pa up to 249cc displacement, good for everyday riding pa! wouldnt that be great. un nga bago kong project, i just need more feedbacks sa kung sakaling may nakagawa na. 30k na budget i think pwede na... instant monster 250cc na sniper natin, kung matune lang ng tama.
 

botsok

Super Veteran
sa tingin nyo ano mas maganda, ito o ung cylinder at cylinder head ng cbr 150 na ikabit sa sniper? hindi lang 28hp un... tapos maging dohc pa ang sniper. ano balita sa motor na un na taga veitnam?

ito.. :D

kawa ninja 250cc has a 26hp engine if im not mistaken
 

botsok

Super Veteran
"....Public sale is resched for some adjustments of the superhead specs…
expected release is on february 2012....."

i think it should be february 2013.. hehehe
 

NACZ

Super Veteran
because i already have a yamaha sniper, buying a cbr 150 will cost more. im up for upgrading nalang... kung mailagay ung sa cbr na head at cylinder possible maging dohc pa sniper at 69mm bore, pwede pa up to 249cc displacement, good for everyday riding pa! wouldnt that be great. un nga bago kong project, i just need more feedbacks sa kung sakaling may nakagawa na. 30k na budget i think pwede na... instant monster 250cc na sniper natin, kung matune lang ng tama.
Ah.. ganun ba paps?.. meron na dito paps, cbr head, nilagay sa mio..
Di ko lang alam kung magkano inabot... ;)
 

NACZ

Super Veteran
You cannot compute the power of the engine just by Cubic centimeter.
It's much more accurate if you base it in horse power.
Just my cents again.. :D
 

yalomed

Member
Ah.. ganun ba paps?.. meron na dito paps, cbr head, nilagay sa mio..
Di ko lang alam kung magkano inabot... ;)
kung head lang anjan lang yan sa mga 6k, pero kung kasama na dohc pati valves, etc siguro aabot pa yan mga 20k. ano naman performance nung inilagay sa mio?
 

yalomed

Member
ito.. :D

kawa ninja 250cc has a 26hp engine if im not mistaken
if with this added mod together with 62mm bore by 65.7mm stroke a generated 28hp can be acquired, how much more hp could a 69mm bore by 65.7mm stroke will account! of course it can be achieved through the cbr cylinder head and block... malaki kasi valves sa cbr, tapos plug n play narin un, may konteng machining din sigurong gawin.
 

botsok

Super Veteran
plug and play ba yung cbr head and block sa sniper?
i think you have to change the connecting rod, the stud bolts, and the hole for the stud bolts..
how about the water pockets? swak po ba sya?
 

NACZ

Super Veteran
kung head lang anjan lang yan sa mga 6k, pero kung kasama na dohc pati valves, etc siguro aabot pa yan mga 20k. ano naman performance nung inilagay sa mio?
Di ko pa nakitang nilaro, Nakia ko lang kasi yun sa isang shop dito..
 
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