I had my gsxr1000 dyno tuned yesterday and gained about 6 hp, peak to peak. Above 10k RPM, I gained more, and gained around 10 HP near 12.5k RPM.

It put down 153 HP and 76-ish ft-lbs of torque. It's mostly stock. The only mods are a K&N air filter (as if that's a mod), and custom slip-on exhaust (slip-on is only the last half, still uses stock header).

AFR was pretty close to begin with, but fattened up above 8-9k RPM. It gained a good amount of torque around 2k RPM, but that really doesn't help much on a bike that spins 13.5k RPM.

Makes you wonder why they can't readily produce a 2.0 liter 4 cyl engine for an automobile thats puts down 300 NA whp.

(I'm sure someone will give me a link and prove me wrong about how some german already has but I mean on everyday cars like suzuki's.)

Originally posted by ScreaminE
(I'm sure someone will give me a link and prove me wrong about how some german already has but I mean on everyday cars like suzuki's.)

Because peaky engines with extremely narrow power bands would be a chore to drive everyday. So, no, I don't really wonder about it.

Originally posted by ScreaminE
Makes you wonder why they can't readily produce a 2.0 liter 4 cyl engine for an automobile thats puts down 300 NA whp. (I'm sure someone will give me a link and prove me wrong about how some german already has but I mean on everyday cars like suzuki's.)

it could be done on a 2gnt but you'd have to spend a lot of time R&Ding a setup that would net you a 12,000 rpm capable engine that would still idle worth anything and not blow up after being looked at funny

Give Mark some time and see what he does.

Originally posted by freelancefool
Give Mark some time and see what he does.

tu shay