quote:
Originally posted by EXBEN
Quote:
quote:And a quick note on what was done,
quote El hunga "Ye thats my baby & yes its a pain in the butt.
I get 300 BHP at the wheel at 25 psi boost.
Only problem it cant be ridden for long as the front wheel is in the air most of the time.
I would like to tell you that I have spent lots of money changing the internals but I would be lying to you if I did.
The truth is the engine internals are pretty standard from Factory.
The original crank & rods are designed to handle high RPM so I choose to take into consideration & use it into my advantage.
What I did was install a 4mm decompression plate to reduce the compression.The only thing was that when I did that the new chains were to short so I had to put spacers between the tensioner to allow the tensioner to work efficiently.
The cams have been changed from originals, the standard ones work from 9000 rpm to 12000 rpm where max power is.
Now my power output is between 6700 to 9000 rpm thus making the power almost instant when the revs come up thus making the bike slightly difficult to ride around corners unlike original.
Original you can be on 2 gear doing 7000 to 8000 rpm around the corners with no problem when you increase the revs, my beast is on boost so when you turn the corners at that rpm you will be in the air or the rear wheel spinning to trying to beat the front.
I wanted to prove that to turbo a ZXR 750 was possible but also get good power from it as well.
Most people talk about injection which is easier but I wanted to do the standard carbs to show you can do it also, injection would be easier but that to me is cheating.
Anyone can do injection but carbs are very difficult.
Currently on 25 psi boost it stands up on the rear wheel at 300 klms easy. Very scary when its a street fighter.
The only problem I have is when you are on boost you cannot just release the throttle as it would flood the engine from the amount of fuel that has rushed in.I do have ignition advancers also as well as very large ports in the cylinder head. They have been increase by a further 35% to allow for the extra power increase also the gearbox has been blue printed to handle the power.The engine can handle it no problem you just have to decrease the power band thats all."
This guy is full of shit.
So he's making 300 at the wheel on 25psi boost on what looks like a T25 turbo that would struggle to make 250hp, he's got no intercooler so his intake charge would be absurdly hot,he's running ignition ADVANCERS?? with that much boost you would want to retard the ignition not advance it, it stands up on the rear wheel at 300km/h call me cynical but I think not, & can someone explain to me how Blueprinting a gearbox increases it's strength??
