1397 are 1507

[bigbill1300]

I have been doing alot of research and still cant make up my mind i was gonna just build a 1397 but after talking around i have to under cut the trans again bcuz i am having problems with first gear now so they tell me just go had put rods crank etc to build a 1507. trying to get some more feedback on both motors and what do yall think is a better setup for alot of street racing and some occasional track use should i got 1397 with nitrous are 1507.
what are some of the hp numbers did yall get ou o both motors .thumbsup:

 

[levihp]

do std bore 13:1 with a set of rods and yoshi cams and spray it down...

 

[bigbill1300]

I was thinking about that 2 what size spray u have and how is it setup wet are dry.

 

[busa crazy]

1397 W 2MILL 08 CRANK MAKES A 1441 AND SPRAY,THATS THE TICKET

 

[Johnnycheese]

all depends on the builder.
but a 1507 and a 1397 need better fuel systems

 

[bigbill1300]

1397 W 2MILL 08 CRANK MAKES A 1441 AND SPRAY,THATS THE TICKET

I looked at that also but it is gona cost me about the same to do the 1507 are the 1441.

 

[99'busa]

um I have to say it sorry.. it's OR not are.

1397 is gonna be your best street friendly way to go imho.

 

[frisbee]

I like the 1441 idea! ( and Spray )

 

[SLEEPERBUSA]

1397 + nitrous

 

[BusaWizard]

1397 more street friendly.

 

[suzuki4life]

but on a street bike...how long will the motor live on spray before a rebuild?

 

[Commuta_Busa]

it all really comes down to how it's all put together. 1397, 1441, 1507, etc can all live on the street if done right.

 

[bigbill1300]

1397 + nitrous

How big of a shot was that was it wet or dry.

 

[SLEEPERBUSA]

Bout a 60hp dry shot.

 

[Gixx1300R]

My motor is a 1525 with spray. I ride on the street alot.

 

[APE Dustin]

I would say either 1397 or 1441 if it is mainly going to be street ridden. With the 1507 you might run into other problems as far as heat issues and starting problems.

 

[Destin07]

I've heard alot of guys saying go with the 5mm crank but if it was me I would go with the 1441 "08 2mm crank" and Rick Ward head and cam package. Give Chuck Wilburn a call at Tupelo Performance. There is a reason the 1441's he builds make a REAL RW 220HP and I believe he's running 7.9's on spray with his 1441. Go to suzukihayabusa.org and search through the ALL MOTOR section he posted up some threads about this build. Go read it good info

 

[Mr.rottentreats]

What kinda fule system with that 1397 60 dry shot?

 

[busaonboost]

the idea of the 1441 and the 1397 just seem more reliable the the 1507cc. Is that true?

 

[APE Dustin]

That depends on who you ask and who builds the motor. I know some people are running 1507s on the street with no problems, but if it were my bike I wouldn't want to go that big for normal street riding, but that is just me.