Boring to...1075 or higher?

Its the same price, so could I bore bigger than 1075 without resleeving? I know this must be asked a billion times. I know that the sleeve can crack. Also if I go 1075 do I have to change the valve clearances or new valves/porting? I have the 29 Pumpers.

Do you plan to use the bike on the street or strictly drag racing at the track? I ask because if you plan to use it on the street and if you go with really large displacement (greater than 1075) you will need to consider heat management. Ed

There are two schools of thought boring stock 1015 cylinder to 1105 or 1197. 1105 has been done many times

Hell, I heard people say you can go to 1197 on stock cylinder......... :ohmy:

Some say its ok to go to 1105, others claim cylinder sleeve will become to thin.

I wouldn't go 1105 on my stock 1015 cylinder.

I think 1197 would be a BOMB waiting to go off.

There is no problem going to 1075 on a stock 1015 cylinder

My two cents. Good Luck

1197 means resleeving the block and boring the top case. More money. No problem with heat using 1015 block with new sleeves. The only thing "bomb" about it is how an 1197 "Bombs" at 1075 in all areas of power

1075 is a straight bore job. Less money out of pocket.

If all you're intending to do is just make it bigger, no head work, no larger carbs, no real performance cams, then the 1075 kit is your ticket.

1075 is the (Practical ) limit.
MTC or Wiesco 1075 @ 10.5 to 1 with the 29s is a proven winner

I believe 4TheKZ1000 is right on target. An 1197 would be a BOMB waiting to go off if you try to use the stock sleeves. And you may not need to wait very long for it to go off. Ed

650ed wrote: I believe 4TheKZ1000 is right on target. An 1197 would be a BOMB waiting to go off if you try to use the stock sleeves. And you may not need to wait very long for it to go off. Ed

Ya, I guess if you don't say stock sleeve, Larry gets lost in space........ :whistle:

Ed got it ok?

All of my street turbo bike were 1075.
7-10lbs on the street, 30lbs of boost at the track, no problem.

4TheKZ1000 wrote:

650ed wrote: I believe 4TheKZ1000 is right on target. An 1197 would be a BOMB waiting to go off if you try to use the stock sleeves. And you may not need to wait very long for it to go off. Ed

Ya, I guess if you don't say stock sleeve, Larry gets lost in space........ :whistle:

Ed got it ok?

Yea.....right...I'm lost in space Here's a little tid bit for you two geniuses. YOU CAN'T BUILD AN 1197 WITH STOCK SLEEVES. $100 says you guys give out more shitty advice by the end of the day :kiss:

Clearly you two experts have built lots of big Kawasaki's......NOT :woohoo:

LarryC wrote:

4TheKZ1000 wrote:

650ed wrote: I believe 4TheKZ1000 is right on target. An 1197 would be a BOMB waiting to go off if you try to use the stock sleeves. And you may not need to wait very long for it to go off. Ed

Ya, I guess if you don't say stock sleeve, Larry gets lost in space........ :whistle:

Ed got it ok?

Yea.....right...I'm lost in space Here's a little tid bit for you two geniuses. YOU CAN'T BUILD AN 1197 WITH STOCK SLEEVES. $100 says you guys give out more shitty advice by the end of the day :kiss:

That's what irritates me most about forums anymore.... Someone buys a Kawasaki, puts air in the tires and they're transformed into engine experts overnight..........Les was right on the money in that machinist question thread.....

Larry,

Thanks for elevating me to the status of genius. :laugh: I wasn't trying to piss you off. You obviously missed my point about "not having to wait long for the bomb to go off". The point was that going to 1197 wouldn't work with stock sleeves. I don't think that was bad advice, and I even think you would agree that trying to bore stock sleeves to 1197 would be an exercise in futility. I cannot speak for 4TheKZ1000, but I was under the impression he was making the same point. If you take a look at the comments I believe you will see that neither of us thought trying to go to 1197 with stock sleeves would work. For sure I was NOT giving any advice to try to do so, and I don't understand how you could misinterpret my comments to think I was giving such lame advice.

Now about that $100.

Ed

650ed wrote:

LarryC wrote:

4TheKZ1000 wrote:

650ed wrote: I believe 4TheKZ1000 is right on target. An 1197 would be a BOMB waiting to go off if you try to use the stock sleeves. And you may not need to wait very long for it to go off. Ed

Ya, I guess if you don't say stock sleeve, Larry gets lost in space........ :whistle:

Ed got it ok?

Yea.....right...I'm lost in space Here's a little tid bit for you two geniuses. YOU CAN'T BUILD AN 1197 WITH STOCK SLEEVES. $100 says you guys give out more shitty advice by the end of the day :kiss:

That's what irritates me most about forums anymore.... Someone buys a Kawasaki, puts air in the tires and they're transformed into engine experts overnight..........Les was right on the money in that machinist question thread.....

Larry,

Thanks for elevating me to the status of genius. :laugh: I wasn't trying to piss you off. You may have missed my point about "not having to wait long for the bomb to go off". The point was that going to 1197 wouldn't work with stock sleeves. I don't think that was bad advice, and I even think you would agree that trying to bore stock sleeves to 1197 would be an exercise in futility. I cannot speak for 4TheKZ1000, but I was under the impression he was making the same point. If you take a look at the comments I believe you will see that neither of us thought trying to go to 1197 with stock sleeves would work and for sure I was NOT giving any advice to try to do so.

Now about that $100.

Ed

A guy get's heartburn. He buys some TUMS. He's cured. Next thing you know he's on a medial forum diagnosing heart diseases........ All seems fine until a doctor happens by and speaks up....That's as close of an analogy as I can attribute to what I see here around here.

LarryC wrote:

650ed wrote:

LarryC wrote:

4TheKZ1000 wrote:

650ed wrote: I believe 4TheKZ1000 is right on target. An 1197 would be a BOMB waiting to go off if you try to use the stock sleeves. And you may not need to wait very long for it to go off. Ed

Ya, I guess if you don't say stock sleeve, Larry gets lost in space........ :whistle:

Ed got it ok?

Yea.....right...I'm lost in space Here's a little tid bit for you two geniuses. YOU CAN'T BUILD AN 1197 WITH STOCK SLEEVES. $100 says you guys give out more shitty advice by the end of the day :kiss:

That's what irritates me most about forums anymore.... Someone buys a Kawasaki, puts air in the tires and they're transformed into engine experts overnight..........Les was right on the money in that machinist question thread.....

Larry,

Thanks for elevating me to the status of genius. :laugh: I wasn't trying to piss you off. You may have missed my point about "not having to wait long for the bomb to go off". The point was that going to 1197 wouldn't work with stock sleeves. I don't think that was bad advice, and I even think you would agree that trying to bore stock sleeves to 1197 would be an exercise in futility. I cannot speak for 4TheKZ1000, but I was under the impression he was making the same point. If you take a look at the comments I believe you will see that neither of us thought trying to go to 1197 with stock sleeves would work and for sure I was NOT giving any advice to try to do so.

Now about that $100.

Ed

A guy get's heartburn. He buys some TUMS. He's cured. Next thing you know he's on a medial forum diagnosing heart diseases........ All seems fine until a doctor happens by and speaks up....That's as close of an analogy as I can attribute to what I see here around here.

I've seen that too and may have even been guilty of it from time to time, but not this time. Ed