SuzukiHayabusa.org

TECHNICAL => ALL MOTOR TALK => Topic started by: Allblackbusa on June 11, 2010, 09:36:16 AM

Title: *HELP* how can you tell if you have a 1397 or if the busa is stock.
Post by: Allblackbusa on June 11, 2010, 09:36:16 AM

i bought the bike 6 months ago. and the other day. a guy said he knew the guy i bought it from and saild it has a 1397. just want to know how to tell. it has one battery. i need help cause i already bought a stage 1 turbo kit for it going to run only 7psi. and if it is i got to lower compression some how? what is the compression on a 1397? 

Title: Re: *HELP* how can you tell if you have a 1397 or if the busa is stock.
Post by: jblankenship on June 11, 2010, 11:43:41 AM

either pull the head, or if you can get the bike up high enough, pull the oil pan off and look for a part number on the bottom of a piston

Title: Re: *HELP* how can you tell if you have a 1397 or if the busa is stock.
Post by: Yngve on June 11, 2010, 12:50:34 PM

All re-plated blocks I have seen has another color than the original. Often more "golden" and they also have some kind of markings from the original plater.

Title: Re: *HELP* how can you tell if you have a 1397 or if the busa is stock.
Post by: dave3.4 on June 11, 2010, 03:18:43 PM

Put it on Dyno :thumb: or pull the head and check  it that way and slap a spacer in it while your there

Title: Re: *HELP* how can you tell if you have a 1397 or if the busa is stock.
Post by: GSXRTURBO1 on June 12, 2010, 12:41:24 PM

measure the bore size while the head is off

Title: Re: *HELP* how can you tell if you have a 1397 or if the busa is stock.
Post by: sportbikeryder on June 12, 2010, 01:00:27 PM

Pull the motor apart and check. Either way, order an .080" base spacer and put it in. You can run an 84mm turbo, I just would not recommend anything at high boost. Low boost will be fine.

Title: Re: *HELP* how can you tell if you have a 1397 or if the busa is stock.
Post by: Allblackbusa on June 12, 2010, 01:10:48 PM

only planing to run 7psi only. should that be good? and i dont drag race alot maybe take it to the track twice a year. and im not a 180+mph kind of guy.

Title: Re: *HELP* how can you tell if you have a 1397 or if the busa is stock.
Post by: sportbikeryder on June 12, 2010, 04:31:42 PM

Quote from: Allblackbusa on June 12, 2010, 01:10:48 PM

only planing to run 7psi only. should that be good? and i dont drag race alot maybe take it to the track twice a year. and im not a 180+mph kind of guy.

7psi should be ok with a spacerr on 84mm pistons.

Title: Re: *HELP* how can you tell if you have a 1397 or if the busa is stock.
Post by: tampated on June 19, 2010, 03:34:09 AM

If the bike makes 192 to 205 RWHP its probably a 1397..if its a stock CC stock compression GEN1 it should make between 148 and 160, if it has some compression increase and bigger cams, then 160 - 180 or so...thats a ballpark, but the best way to tell is to take it a part....You should also run a compression check to see the cyclinder preassures...13:1 will give you in the ballpark of 255 per cyclinder.....a stock busa would be between 180-200 pressure readings....