carpenter packages

[fastone]

well theres the prob its only running 120mph in the 1/8th our hood ratt back yard motor is running 129mph in the 1/8!!

small cam 1397 with a average exhaust will do well. Bob motors have 425 /415 cam and need a good exhaust to take advantage of the wide lobe separation on the cams. make hp at high rpm so you might need to adjust your launch style also. 

[DarkFalcon]

small cam 1397 with a average exhaust will do well. Bob motors have 425 /415 cam and need a good exhaust to take advantage of the wide lobe separation on the cams. make hp at high rpm so you might need to adjust your launch style also. 

Fastone, I am not necessarily disagreeing with you about wide lobe separation and the need for a good exhaust.....................but what relationship between overlap and exhaust system are you referring to?

[fastone]

small cam 1397 with a average exhaust will do well. Bob motors have 425 /415 cam and need a good exhaust to take advantage of the wide lobe separation on the cams. make hp at high rpm so you might need to adjust your launch style also. 

Fastone, I am not necessarily disagreeing with you about wide lobe separation and the need for a good exhaust.....................but what relationship between overlap and exhaust system are you referring to?

Sorry for the confusion Dark Falcon but I'm refering to lobe separation and camshaft centerline. Wider lkobe separation usually make hp peak hightr in the power band. Thus need a larger exhaust to take advantage. Tighter lobe separation make powerr lower in the power band with a little more midrange tq. so a smaller exhaust can be used with good results because the motor is not moving as much air  through the exhaust. But this increase in overall tq can make a bike faster in the 1/8 but not in the quarter mile. just my opinion. Like comparing big block chevy to sm blk

[JR Killiany]

Fastone,

Can you tell me more about the extended ecu.
I think that my Busa could benefit from a little more rpm.
My current limit is 10,800, I would love to be able to try 11,500.

Thanks.

JR Killiany

[gnd111]

Fastone,

Can you tell me more about the extended ecu.
I think that my Busa could benefit from a little more rpm.
My current limit is 10,800, I would love to be able to try 11,500.

Thanks.

JR Killiany

DaveO and Matt Wright have that info.  11,150 and 11,350 based on the year ECU...

[fastone]

EXACTLY WHAT HE SAID. yOU ONLY NEED ONE IF YOUR MOTOR MAKE POWER TO THE LIMITER AND STILL IS CLIMBING. i JUST BOUGHT ONE FOR GP

[flashracer]

MY BUSA MADE 209 HP WITH 112 TORQUE . 1397 13-1 CARPENTER 385'S  IT WOULD RUN 155+ EVERY PASS AND HAS RUN 163 MPH WITH NO NOS.

[j winkelman]

MY BUSA MADE 209 HP WITH 112 TORQUE . 1397 13-1 CARPENTER 385'S  IT WOULD RUN 155+ EVERY PASS AND HAS RUN 163 MPH WITH NO NOS.

What head do you have on youre bike?

[fastone]

sounds like the 200 hp street head but those are good number. probably pull on a 250i dyno

[flashracer]

MY BUSA MADE 209 HP WITH 112 TORQUE . 1397 13-1 CARPENTER 385'S  IT WOULD RUN 155+ EVERY PASS AND HAS RUN 163 MPH WITH NO NOS.

What head do you have on youre bike?

BOB DID THE HEAD AND SOLD AND SET THE HEAD UP FOR THE CAMS. HAD A LOCAL PUT THE MOTOR BACK TOGETHER. CAMS SET UP 112/112  HERE IS A LINK TO VEIW MY TIME SLIPS. BIKE IS SOLD THOUGH. http://psychobike.com/cgi-bin/ikonboard.cgi?s=5b34b10f4388dabfc7fec57c4c8e7bfe;act=ST;f=3;t=28512