1270 or 1287

[Donszx]

which big bore kit is best for an 01 zx12r mostly street ridden and an occasional drag strip blasts(2 or 3 times a year)?

[gilberjj]

1352

[1bondoman]

Keep it stock and throw a little dry kit on it.

[almost_les]

1bondoman makes a good point. unless you're racing all the time, or have a specific need to keep it NA. a bit of spray wil be the best bang for your buck.

[cabrazx12]

Had a 1287 on my last bike and it worked great. I'am using a 1270 on my current bike.

[1bondoman]

1bondoman makes a good point. unless you're racing all the time, or have a specific need to keep it NA. a bit of spray wil be the best bang for your buck.

Thanks,I done better on mine with spray before I got a piston kit.

[ninja12]

I've had almost ever zx12 combo under 1400 cc, and I like the 1270 best for a street bike.
Less heat and less starting problems.
Nitrous is great for racing but a bigger motor is always ready.
If the question is which of those give the most bang for the buck the answer is 1270, most HP=1287 with spray, most reliable = stock.
1270 with spray is hard to beat from a cost stand point.

[shaw]

I've had almost ever zx12 combo under 1400 cc, and I like the 1270 best for a street bike.
Less heat and less starting problems.
Nitrous is great for racing but a bigger motor is always ready.
If the question is which of those give the most bang for the buck the answer is 1270, most HP=1287 with spray, most reliable = stock.
1270 with spray is hard to beat from a cost stand point.

x 2

[Donszx]

It's currently running stock with a 40 dry shot. This bike was bought this way,tuned by KWS.The previous owner supplied a dyno sheet from KWS showing 175 hp motor and 205 on spray.Shortly after buying the bike the PC lost the map.

[woppi]

1270 for street !

have a wiseco 1272 piston kit 4sale !

woppi

[kawiturbo]

I have an 01 w/ a 1270 kit,full akro exhaust,PC3r,and it made 176 RWHP.I can drive it anywhere,and it can get out of it's own way too

[04madkaw]

I've had almost ever zx12 combo under 1400 cc, and I like the 1270 best for a street bike.
Less heat and less starting problems.
Nitrous is great for racing but a bigger motor is always ready.
If the question is which of those give the most bang for the buck the answer is 1270, most HP=1287 with spray, most reliable = stock.
1270 with spray is hard to beat from a cost stand point.

The best is 1270 w/ spray!