Stock Camshaft degrees on hayabusa turbo

[denden]

I was wondering what the best cam timing would be for a hayabusa turbo with a GT35 turbo, woesner pistons, 80"spacer.

I already tried:
 105/105. ( bike ran good but power range and torque range where on the low rpm range.)
110/110 ( power band is good but bike is quite lazy leaving at the tree ) also after changing to this numbers, engine is like loosing current when trying to rev to approx 4000 rpm and more. when this happens the FI lights up giving all the injector codes.)


Need some advice urgent on best degree and probably problem on loosing current.

things already checked:
1- injectors
2- wire harness
3- ecu
4- bike stand
5- ignition switch
6- sparkplugs
7- coils

appreciate any input

chears




 

[sportbikeryder]

Your best bet if to stay more retarded than 110 on the intake to prevent cam sensor issues. If you are street riding, I'd go with the retarded cam timing you had before 105/105

[denden]

thanks for the input. but the bike is only used for dragracing.
any other info?

[Moparict]

I used 106/108 and loved it.  Although, I did research on this very issue and it seems to be a preference thing.  I have not seen any hard data or dyno charts to show the changes the timing makes in relationship to RPM.  It would be great if one had the money to do just that so that they could pick where they wanted their peaks.

[Chris Horoho]

id say a 105/107 or 106/108 would be my call

[sportbikeryder]

If it is drag only and you are revving it high, you can either try 109/110 or something in that area, or get an offset cam pin for the intake and bump it even higher. The thing is that you really need to spin it high to get anything out of the really high cam timing. Makes the bike a slug down low so you need to have a chassis and clutch that will allow high rpm launches and likely pre-spool the turbo to leave.

[buzard]

105/105 fo street. 110/110 if racing ony. kep stock if you dont mind a few hp loss. it will start easier.

[1BADASSBUSA]

id say a 105/107 or 106/108 would be my call

I agree +1 

[buzard]

simplify and keep it stock timing and gears.

[Nem]

105/108
 

[denden]

thks for all the info. I went for the 106/108
bike runs great. made a solid 8.35 with a bad 60 feet. need to adjust the multistage.

ths

[BATTMAN]

Pretty god et.  whats your setup?  how much boost

[buzard]

Hhmmm something is off

[kawaking]

Hi denden ! how you doing ??sorry to jump in your thread !!!

Buzard : what is the stock cam timing on a busa no .080 baseplat ! just bone stock
and what gains do you see if you degree them properly ?

let us know

thx !

[denden]

1- turbo size: GT35
2- Injtors indeed are screeming and will upgrade them to the 1000cc.

Kawaking no problem at all that you jump into this topic asking what you want.
for the stock degree no: 106in and 99.5exh.

hope this help.

[buzard]

I am not sure what they are stock. I have had stock cam gears and set them up just like a stock bike. It is a turbo, if you need more power just add boost. Black bike with Rcc ultra and microtechnology made 565 hp 311 ft lb tq. Why complicate things.