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Discussion starter · #61 ·
awesome dyno run, how does the engine handle 7 psi? Did you end up using water injection?[/QUOTE

It takes the boost just fine, and it actually gets better fuel mileage!! no water injection. My AFR is set to 11.8-1 @ full throttle,so that extra fuel will help cool the charge. If I were to lean out the AFR the bike could put out another
10-15hp but would not be safe to run on pump gas.
 
Thanks man, I was hoping it would put out more but I guess ill play it safe until I have some pistons made.
I'll have a graph up ASAP , I'm waiting on my tuner to email one to me...
How much more were you hoping for? Most put out about 105-110 at the wheel stock. A %50 gain with no internal modification is pretty respectable if you ask me, and is in the ballpark of where i thought you'd be.

Looks awesome btw, would be absolutely perfect on a Speed or street triple.
 
Thanks man, I was hoping it would put out more but I guess ill play it safe until I have some pistons made.
I'll have a graph up ASAP , I'm waiting on my tuner to email one to me...
Yeah I took a look at your first post and saw your goal. Still not too shabby. I guess ride it like it is for now and then when you get used to it, as we all do, you can take the next step.

I'd love to do something like this on my street triple. Maybe I'll wait until the end of the year to see how your motor holds up under the pressure before I do anything to mine.

Thanks for keeping us posted with the progress on the project.
 
Unreal mate, 158rwhp sounds bloody awesome - it's what most litre bikes put out these days! How does it ride?

Yeah that's pretty unrealistic... I can see maybe 135hp
Not necessarily - dont forget there is more parasitic loss with a supercharger than a turbo, 4psi turbo would be pretty close to 7psi with a supercharger, that said, his claim of 180hp is very unrealistic!:whistle:
 
Thanks man, I was hoping it would put out more but I guess ill play it safe until I have some pistons made.
I'll have a graph up ASAP , I'm waiting on my tuner to email one to me...
Pistons would only be part of the solution. The World Supersport team were blowing motors when they got up to the 140-150rwhp area due to cylinder liner failure. The cylinder liners in these bike are of the floating usupported variety and according to Triumph even mildly built racebike the liners will swell at sustained full throttle allowing blow by. Increase the output a bit more then that and they start cracking.
 
Pistons would only be part of the solution. The World Supersport team were blowing motors when they got up to the 140-150rwhp area due to cylinder liner failure. The cylinder liners in these bike are of the floating usupported variety and according to Triumph even mildly built racebike the liners will swell at sustained full throttle allowing blow by. Increase the output a bit more then that and they start cracking.
So basically the cylinder walls would need to be wet sleeved?

Also, I saw the dyno graph, tuned with PCV. Did you use that auto tune function with the little O2 sensor?
 
Discussion starter · #78 ·
So basically the cylinder walls would need to be wet sleeved?

Also, I saw the dyno graph, tuned with PCV. Did you use that auto tune function with the little O2 sensor?
I was not using auto tune on the dyno. We put it on the dyno to tune the fuel map close enough for it to run ok... Now that its on the street I enabled auto tune so now the AFR should be neer perfect and its probably puting down a little more than what I ran on the dyno
 
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