real advantages of a 1397

[99'busa]

The JE 13:1 pistons are actually 12.8:1.  After the head gasket I believe you are looking at about 12.65:1 or so.  That is just a ball park guess.

I am getting ready to have a 1397 built with the Web Cams (.395/.378) and some minor head work.  We are expecting to get ~200whp on 91 octane.  Should be able to run a single high amp battery with no heat issues.

Right now the bike makes ~ 168whp.


Don

thats the samething im doing but 385/385cams im going with 12 to 1 my bike is also 168rhp

 

[bazz]

I dont think you will waste your money, its money well spent, you can feel the power over a stock busa straight off.

if your just going to use it on the road ( as you would ride your stock busa now ) i would not bother, if you plan to do some blasting about and perhaps some top speed runs then go for it.

you will also need to do other mods aswell.

1. starter mod
2. clutch mod
3. billet cam chain tensioner
4. hi volume oil gear
5. more amps battery

Bazz

 

[99'busa]

I dont think you will waste your money, its money well spent, you can feel the power over a stock busa straight off.

if your just going to use it on the road ( as you would ride your stock busa now ) i would not bother, if you plan to do some blasting about and perhaps some top speed runs then go for it.

you will also need to do other mods aswell.

1. starter mod
2. clutch mod
3. billet cam chain tensioner
4. hi volume oil gear
5. more amps battery

Bazz

yes what he just said

 

[suzuki4life]

I dont think you will waste your money, its money well spent, you can feel the power over a stock busa straight off.

if your just going to use it on the road ( as you would ride your stock busa now ) i would not bother, if you plan to do some blasting about and perhaps some top speed runs then go for it.

you will also need to do other mods aswell.

1. starter mod
2. clutch mod
3. billet cam chain tensioner
4. hi volume oil gear
5. more amps battery

Bazz

what starter mod? What clutch mod? Many turbo bikes run the stock tensioners...why does he need aftermarket? oil gear for big bore IMHO is overkill...for a stroker or race bike...maybe. Bigger battery can even help a stock busa.

 

[99'busa]

IM GETTING NEW OIL GEAR IVE HEARD FROM FACTORY NOT SO GOOD., CLUTCH MOD FOR MINE IS HEAVY DUTY SPRINGS,

 

[bazz]

the starter mod is for early bikes 99/00 models as this was upgrated by Suzuki on later models, if the bike fails to start ( the battery is not stong enough to spin the motor over ) it might kick back, in turn bust the crankcase where the starter motor is, you need to fit a HD starter wheel and mod the casing.

if the engine is putting out more power, its a safer bet to feed it more lube oil ? is it not ?

the stock clutch springs are not up to the power the 1400 motor is putting out, hence the clutch mod, later bikes 2001 > already have this done by Suzuki

Billet cam tensioner, better then the OEM one as the cam chain cannot back off when the revs drop from high speed.

Bigger amp battery gives more cranking amps ... but if the motor is running OK you will see no difference starts as nornmal.

 

[99'busa]

mines getting a "case saver" for the kickbck

 

[Mr Bogus]

<div class="iF-Passage"><div class="QUOTEHEAD">Quote:[/Quote]<div class="QUOTE clearfix"><span class="quoteBegin"> </span>
if the engine is putting out more power, its a safer bet to feed it more lube oil ? is it not ?[/quote]not necessarily.. you are concerned with "pressure" if you have a motor with higher oil demands (say a turbo or clearanced bearings or anything else that might adversely affect oil pressure) THEN you might need more pump..

too much oil pump can be just as bad as not enough..
It requires hp to turn and can literally "wash" the babbit off the bearings. Again, this is a good reason to use an engine builder that knows his stuff, he can make that decision for you and save a lot of heartache either way..

 

[suzuki4life]

the starter mod is for early bikes 99/00 models as this was upgrated by Suzuki on later models, if the bike fails to start ( the battery is not stong enough to spin the motor over ) it might kick back, in turn bust the crankcase where the starter motor is, you need to fit a HD starter wheel and mod the casing.

if the engine is putting out more power, its a safer bet to feed it more lube oil ? is it not ?

the stock clutch springs are not up to the power the 1400 motor is putting out, hence the clutch mod, later bikes 2001 > already have this done by Suzuki

Billet cam tensioner, better then the OEM one as the cam chain cannot back off when the revs drop from high speed.

Bigger amp battery gives more cranking amps ... but if the motor is running OK you will see no difference starts as nornmal.

why not swap in a 2003+ starter assembly and be done with it? I have yet to see what year his bike is anyway.


yes 02 they added another plate to the clutch, yes you can update to an 02+ setup

too much pressure is a bad thing, it blows seals, increases blow by etc etc etc.

many turbo bikes running stock tensioners....don'tsee a reason to change it.

forgot to mention swapping electrical systems since the newer bikes run higher BIT systems thus are smoother etc and some think that gives them a couple horse advantage over the older models.