1298 Rear Wheel HP, ??.

[FlaminRoo]

i am  interested to know what rear wheel horsepower a naturally aspirated 1298cc (Gen 1) is capable of making, with headwork,  cams, pipe, etc,??, .  dyno numbers, real not fanticy, 

[RansomT]

I'll start off with mine:  On pump gas, mine shows 207/107.  My cams are pushed really high, so I do give up a couple pounds of TQ at the expensive of HP curve pushed up.  Plus, when I built the motor, I did have in mind spraying.  So I do have several HP laying on the table due to the set up.

[sportbikeryder]

I'll start off with mine:  On pump gas, mine shows 207/107.  My cams are pushed really high, so I do give up a couple pounds of TQ at the expensive of HP curve pushed up.  Plus, when I built the motor, I did have in mind spraying.  So I do have several HP laying on the table due to the set up.

207 with stock bore and stroke?

Who are you, Fred Vance's brother? 

[fvance]

Mine is a 1340, 230hp. I would think with a Carpenter head and cams 210 to 215  should be easily attainable.

[yvesgsxr1300]

202HP/111TQ with drop in pistons  ......Totally streetable = pump gas........... I ran 9.27 at 155 with me at 215lbs suited. Stock wheelbase

[speedduck]

Mine is a 1340, 230hp. I would think with a Carpenter head and cams 210 to 215  should be easily attainable.

So, with Carpenter parts you could have 210-215, but now you have 230, there must be some serious parts you got there

[fvance]

I was talking about 210-215 with the same parts I have, on a 1298 cc motor, Carpenter head and cams. Of course you need Johnny Cheese to tune it.

[speedduck]

Just let me know when JC is touring northern Europe, i could arrange a day on a Dynojet or Dynostar 

[clearblue]

My 1397 carpenter with head work onlys makes 212hp

[Johnnnycheese]

Just let me know when JC is touring northern Europe, i could arrange a day on a Dynojet or Dynostar 

I would like to go back to Holland with my wife again her homeland

[RansomT]

My 1397 carpenter with head work onlys makes 212hp

But how much TQ?  and which cams at what degree?

[clearblue]

My 1397 carpenter with head work onlys makes 212hp

But how much TQ?  and which cams at what degree?

115.87 TQ cams 425/425 at 110int/112exh

[whtrthanu]

they make good power if you do em right.....ive done a bunch of 1340s....stock pistons and stock rods, they run real good..REALLY GOOD

[clearblue]

they make good power if you do em right.....ive done a bunch of 1340s....stock pistons and stock rods, they run real good..REALLY GOOD

What's up Mike Hope you had a Good New Year

Mark

[nykon]

I came in here to see a 1300 rwhp bike 

[Cycle Concepts]

i am  interested to know what rear wheel horsepower a naturally aspirated 1298cc (Gen 1) is capable of making, with headwork,  cams, pipe, etc,??, .  dyno numbers, real not fanticy, 

180'ish depending on what fuel you put it on..this is based around a stock bore using stock pistons, ported head,cams and a good pipe..this is real world no bs numbers that i have seen out of many gen1's done by many of the biggest names in this part of the sport..

[sportbikeryder]

i am  interested to know what rear wheel horsepower a naturally aspirated 1298cc (Gen 1) is capable of making, with headwork,  cams, pipe, etc,??, .  dyno numbers, real not fanticy, 

180'ish depending on what fuel you put it on..this is based around a stock bore using stock pistons, ported head,cams and a good pipe..this is real world no bs numbers that i have seen out of many gen1's done by many of the biggest names in this part of the sport..

that's normally what I woudl have said Dwayne, but now there are these young new guys like Fred Vance that get motors built that seem to make a new level of power and its not just like the old dyno manipulation....can't fake 235mph in a 1350cc N/A class.

I've never seen it, but I really do think they could make 205 on a stock bore and stroke, even on the dyno I use or on your tightwad dyno. 

[gsx-rboy750]

I came in here to see a 1300 rwhp bike 

+1

[FlaminRoo]

"that's normally what I woudl have said Dwayne, but now there are these young new guys like Fred Vance that get motors built that seem to make a new level of power and its not just like the old dyno manipulation....can't fake 235mph in a 1350cc N/A class. "

there always seems to be conjecture, those folks that claim around  180's, and another bunch saying 200+ ,, at least Freds bike has the runs to back the 230hp up with, then again its a dedicated LSR bike, ,, 
there seems to be no real noticable differance between the 1298's and 1340's, when you think about it, what great advantage is there in having the extra 10.5cc per hole, ,,

[RansomT]

It takes darn near 200 wHP to run 200 MPH.  I've got a whole stack of time slips in the 210-211 mph range.  Heck fellars, my BMW S1000 makes 182 wHP and it's stock down to the exhaust but I did tune it with a PCV.

[STREETDRAG]

"that's normally what I woudl have said Dwayne, but now there are these young new guys like Fred Vance that get motors built that seem to make a new level of power and its not just like the old dyno manipulation....can't fake 235mph in a 1350cc N/A class. "

there always seems to be conjecture, those folks that claim around  180's, and another bunch saying 200+ ,, at least Freds bike has the runs to back the 230hp up with, then again its a dedicated LSR bike, ,, 
there seems to be no real noticable differance between the 1298's and 1340's, when you think about it, what great advantage is there in having the extra 10.5cc per hole, ,,

Torque Is the Answer, It's what propels the bike, Hp just keeps it going...

[STREETDRAG]

205hp out of a 1298 is achievable but your gonna need higher compression pistons, a crank lightened and worked for good oiling, good fuel needed cause it's not gonna happen on pump gas, a great pipe and a head/cam combination that really works well together coupled with the right gearing and it's attainable. I didn't say it was gonna be a easy cranking street bike motor though...


Anybody know the ACTUAL most hp out of a stock stroke 1298 made to date?


 

i am  interested to know what rear wheel horsepower a naturally aspirated 1298cc (Gen 1) is capable of making, with headwork,  cams, pipe, etc,??, .  dyno numbers, real not fanticy, 

180'ish depending on what fuel you put it on..this is based around a stock bore using stock pistons, ported head,cams and a good pipe..this is real world no bs numbers that i have seen out of many gen1's done by many of the biggest names in this part of the sport..

that's normally what I woudl have said Dwayne, but now there are these young new guys like Fred Vance that get motors built that seem to make a new level of power and its not just like the old dyno manipulation....can't fake 235mph in a 1350cc N/A class.

I've never seen it, but I really do think they could make 205 on a stock bore and stroke, even on the dyno I use or on your tightwad dyno. 

[sportbikeryder]

If anyone is in the western PA area and has a 200+ HP stock pistoned busa, I will arrange for getting it on the dyno I use. No charge, I'd just like to see it. You can do some tuning or whatever you want while its on there.

[RansomT]

Here you go ..... My LSR 1300 cc Busa right before the September event at Wilmington.  Wiseco 13:1 drop ins, Carpenter head/cam package, Ti Exhaust.  Run was done N/A with C16 in the tank.  I was trying to tune out the lean spike at 4K RPM.  I just happen to have this dyno run on my pin drive at work while reading these post.  BTW, I get on occasion a bike to tune that Brock had on his dyno and I normally show 2-3 HP less on my dyno.

[fvance]

I think compression  and head and cams is the key. I run about 13-1 compression and the Carpenter head and 443/425 cams. Also the gas. I made 228 on ERC 102octane unleaded, 234 on VP MR12. I think Ransom was probably running c16 with the thought of spraying it. C16 is too high octane for a, relatively, low octane motor.