My Tuned R15 - xBhp.com : The Global Indian Biking Community

Joel · 05-25-2009, 01:54 PM

****Update specs as of 14/04/2010****
Its my 7 months old R15 with 12000kms on the odo and not stock anymore. Completed a performance build about 2 days ago.
Here are a few specs of the bike as of now. The specs are always due for changes as and when I desire.

This is purely a street build and not a race build. key is reliability, economy and rideability.

Engine:
*Ported and polished cylinder head with altered port geometry
*Custom designed valve springs
*Stock Valve sizes
*Full Race camshaft with custom ground profile
*High compression set-up
*165cc
*Fine tuning and set-up corrections
*Max revs - 12500rpm
*Stock throttle body and intake tract

Fuel management:
*Stock Injector
*ECU (under development)
*Altered fuelling

Gearing:
*Stock sprockets
*Stock Gearbox
*Stock Clutch

External:
*Stock looks
*Hand crafted Tuned Free Flow exhaust
*Full stock weight, no lightening

Performance:
V-box test
My R15
0-60kph - 3.2secs
0-100kph - 8.5secs
0-400mtrs - 16secs
400mtrs - 132kph
max speed achieved in 1km - 155kph

Stock R15
0-60kph - 4.6secs
0-100kph - 13.65secs
0-400mtrs - 18.5secs
400mtrs - 114kph
Updated as per V-box tests on 21/06/2009

Top-speed – 140kmph (As tested on 24/15/2009 on GPS and Speedgun, with rev-limiter cutting off speeds @ 10000rpm)

The engine has higher low-end torque than a stock R15 untill 5000rpm and from then on, it gets into the powerband with a stronger pulse. The engine is very streetable and reliability is as much as stock. After being thrashed for over 200kms last afternoon and being pushing to top-speeds numerous times as part of my destructive tests, there was not a hitch in performance or engine NVH levels. The engine stills returns decent fuel efficiency for the power it generates. It’s approximately around 30-35kmpl.
Last afternoon, when we tested the bike, a stock R15 would clock 119 to a max of 125kmph on a hopelessly windy road (with multiple efforts) and at the same point my R15 clocked 131-138kmph. And recorded a max of 140kmph on a clear patch, with the rev-limiter kicking in @ 10000rpm.
I will also do a Dyno run and post results here.
Pictures and a video clip are with our boys. They should post up in a while now

A small video of the exhaust note and the rpm climbing.
Rediff iShare: Joels yamaha R15

Joel

rossiter · 05-25-2009, 02:08 PM

Thread approved

Great! Looking forward to the dyno charts man

outworldly maniac · 05-25-2009, 02:19 PM

awesome as ever

is there any change in the specs???
i mean are there changes in
displacement
torque
power output at the wheel?

MavericK46 · 05-25-2009, 02:26 PM

Was expecting something along these lines when you posted up about the free-flow being developed and tested

I'd love to witness the V-Box tests. Will call you this week to check up on the schedule for the same. The awesomeness never seems to die down as concerns you, Joel !

motormania · 05-25-2009, 02:36 PM

Fabulous work sirjee...i had been keenly waiting for the update on your R15...thats an appreciable increase in top speed in windy conditions...

PS:-no plans for further weight reduction of the already light bike??

Joel · 05-25-2009, 02:39 PM

Quote:

Originally Posted by outworldly maniac

is there any change in the specs???
i mean are there changes in
displacement
torque
power output at the wheel?

CC is 149.
Power and torque bump will be proven on a dyno. No comments till then. I have clearly mentioned all the specs, its says...modified stock piston

.

@rossiter - that was quick. Thanks

@maverick - Thanks man.

Aparajith · 05-25-2009, 03:00 PM

^^Was expecting something on these lines when u called me up. Since I have done all the praises yesterday, nothing more remains(

), except - KEEP UP THE GOOD WORK BUDDY!!!!!!!

ken cool · 05-25-2009, 03:14 PM

This guy will NOT fail to amaze all of us! And THIS is child's play for him, baby stuff!

Binoy · 05-25-2009, 03:15 PM

A ported R15...

can't imagine the performance... Even a stock R15 had satisfied my needs...

Is it full port or a semi-port engine???

Anyways u r "THE ONE"... NEO...

satyenpoojary · 05-25-2009, 03:21 PM

Quote:

Originally Posted by Joel

Its my 7 months old R15 with 12000kms on the odo and not stock anymore. Completed a performance build about 2 days ago.
Here are a few specs of the bike as of now. The specs are always due for changes as and when I desire.

This is purely a street build and not a race build. key is reliability, economy and rideability.

Engine:
*Ported and polished cylinder head with altered port geometry
*Custom valve springs
*Stock Valve sizes
*Stage 1 spec camshaft with custom ground profile
*High compression set-up
*Modified cylinder and stock piston
*Fine tuning and set-up corrections
*Stock airbox and filter
*Stock throttle body and intake tract

Fuel management:
*Stock Injector
*Stock ECU + coil
*Altered AFR values for fuelling inputs

Gearing:
*Stock sprockets
*Stock Gearbox
*Stock Clutch

External:
*Stock looks
*Hand crafted Tuned Free Flow exhaust
*Full stock weight, no lightening

Performance:
0-60 – (awaiting V-BOX tests)
0-100 - (awaiting V-BOX tests)
0-400mtrs – Anything between 16-17 secs depending on conditions, with full stock mass
Top-speed – 140kmph (As tested on 24/15/2009 on GPS and Speedgun, with rev-limiter cutting off speeds @ 10000rpm)

The engine has higher low-end torque than a stock R15 untill 5000rpm and from then on, it gets into the powerband with a stronger pulse. The engine is very streetable and reliability is as much as stock. After being thrashed for over 200kms last afternoon and being pushing to top-speeds numerous times as part of my destructive tests, there was not a hitch in performance or engine NVH levels. The engine stills returns decent fuel efficiency for the power it generates. It’s approximately around 30-35kmpl.
Last afternoon, when we tested the bike, a stock R15 would clock 119 to a max of 125kmph on a hopelessly windy road (with multiple efforts) and at the same point my R15 clocked 131-138kmph. And recorded a max of 140kmph on a clear patch, with the rev-limiter kicking in @ 10000rpm.
I will also do a Dyno run and post results here.
Pictures and a video clip are with our boys. They should post up in a while now

Joel

Ah! Super Nice!

One thing.... the things that most 'super-modders-from-the-neighborhood' mod are left stock in your bike..... !

You mentioned 140KMPH True! a High Compression setup.... and you say its a street setup! he he he which street do you live in ... jokus!

05-25-2009, 01:54 PM	#1 (permalink)
Joel Race Concepts Join Date: Jun 2004 Location: Bangalore Posts: 1,844	My Tuned R15 **Update specs as of 14/04/2010** Its my 7 months old R15 with 12000kms on the odo and not stock anymore. Completed a performance build about 2 days ago. Here are a few specs of the bike as of now. The specs are always due for changes as and when I desire. This is purely a street build and not a race build. key is reliability, economy and rideability. Engine: Ported and polished cylinder head with altered port geometry Custom designed valve springs Stock Valve sizes Full Race camshaft with custom ground profile High compression set-up 165cc Fine tuning and set-up corrections Max revs - 12500rpm Stock throttle body and intake tract Fuel management: Stock Injector ECU (under development) Altered fuelling Gearing: Stock sprockets Stock Gearbox Stock Clutch External: Stock looks Hand crafted Tuned Free Flow exhaust Full stock weight, no lightening Performance: V-box test My R15 0-60kph - 3.2secs 0-100kph - 8.5secs 0-400mtrs - 16secs 400mtrs - 132kph max speed achieved in 1km - 155kph Stock R15 0-60kph - 4.6secs 0-100kph - 13.65secs 0-400mtrs - 18.5secs 400mtrs - 114kph Updated as per V-box tests on 21/06/2009 Top-speed – 140kmph (As tested on 24/15/2009 on GPS and Speedgun, with rev-limiter cutting off speeds @ 10000rpm) The engine has higher low-end torque than a stock R15 untill 5000rpm and from then on, it gets into the powerband with a stronger pulse. The engine is very streetable and reliability is as much as stock. After being thrashed for over 200kms last afternoon and being pushing to top-speeds numerous times as part of my destructive tests, there was not a hitch in performance or engine NVH levels. The engine stills returns decent fuel efficiency for the power it generates. It’s approximately around 30-35kmpl. Last afternoon, when we tested the bike, a stock R15 would clock 119 to a max of 125kmph on a hopelessly windy road (with multiple efforts) and at the same point my R15 clocked 131-138kmph. And recorded a max of 140kmph on a clear patch, with the rev-limiter kicking in @ 10000rpm. I will also do a Dyno run and post results here. Pictures and a video clip are with our boys. They should post up in a while now A small video of the exhaust note and the rpm climbing. Rediff iShare: Joels yamaha R15 Joel Attached Thumbnails __________________ joel@raceconcepts.in Last edited by Joel; 04-15-2010 at 01:52 AM.

05-25-2009, 02:26 PM	#4 (permalink)
MavericK46 Senior Member Join Date: Apr 2007 Location: Bangalore Posts: 1,191	Was expecting something along these lines when you posted up about the free-flow being developed and tested I'd love to witness the V-Box tests. Will call you this week to check up on the schedule for the same. The awesomeness never seems to die down as concerns you, Joel ! __________________ I'm normally not a praying man, but if you're up there, please save me Superman. -Homer J Simpson

05-25-2009, 02:36 PM	#5 (permalink)
motormania Senior Member Join Date: Nov 2008 Location: Kolkata Posts: 422	Fabulous work sirjee...i had been keenly waiting for the update on your R15...thats an appreciable increase in top speed in windy conditions... PS:-no plans for further weight reduction of the already light bike?? __________________ You can take the ride away from me but you cannot take the rider out of my soul.........

05-25-2009, 03:00 PM	#7 (permalink)
Aparajith RIP Kriss :( Join Date: Jan 2007 Location: Chennai Posts: 1,866	^^Was expecting something on these lines when u called me up. Since I have done all the praises yesterday, nothing more remains(), except - KEEP UP THE GOOD WORK BUDDY!!!!!!! __________________ Democracy is when 2 wolves and a sheep meet to decide who is for dinner. Liberty is when the sheep has a gun.

05-25-2009, 03:14 PM	#8 (permalink)
ken cool Super Moderator Join Date: Sep 2005 Location: New Delhi Posts: 4,677	This guy will NOT fail to amaze all of us! And THIS is child's play for him, baby stuff! __________________ The Wheel was a great invention; Two Wheels with a Motor in between was even better! BMW Motorrad Days 2011 Xbhp's Indo-French Kashmir-Ladakh Tour

05-25-2009, 02:08 PM	#2 (permalink)
rossiter Moderator Join Date: Jan 2006 Location: Bangalore Posts: 1,270	Thread approved Great! Looking forward to the dyno charts man

05-25-2009, 02:19 PM	#3 (permalink)
outworldly maniac Senior Member Join Date: Apr 2009 Posts: 964	awesome as ever is there any change in the specs??? i mean are there changes in displacement torque power output at the wheel?

05-25-2009, 03:15 PM	#9 (permalink)
Binoy Ride Long... Ride Safe... Join Date: Jan 2009 Location: Thrissur,Trivandrum, Bangalore Posts: 1,982	A ported R15... can't imagine the performance... Even a stock R15 had satisfied my needs... Is it full port or a semi-port engine??? Anyways u r "THE ONE"... NEO... __________________ ...Ride Long...Ride Safe... When you dance with the devil, you wait for the song to stop...

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