Cam timing

[scotgary]

Hi Guys,

I'm ready to adjust cam timing on my GSX1100.

APE (Greg Cope) recommends 110 degrees both intake and exhaust.

Anyone else have a different recommendation?

The motor has oem pistons, Fresh valve seats, Mikuni RS36's and a Motogpwerks exhaust.

 

Thanks

[no class]

Greg Cope is a very respected engine builder..... what more do you need to know ?

[Blubber]

My 1135 efe had stock cams at 110 / 110  and rs36. Perfect combo in my memory. 

 

Made it a bit thirsty but that was because of the idiot at the throttle ( me) 

 

[scotgary]

Yeah, I'm not easy on the throttle either.  Gas is relatively cheap here in Canada. lol

I was thinking of closing up the centers a bit ( somewhere around 106/108) to create some overlap and take advantage of the carbs ability to breathe better.

[no class]

Gas is SHIT in Canada....majority if tge stations sell (91ron)......unless you can find a Sunoco (94 ron) and those are few and far between.......or settle for petrocan...... unlike the good stuff the guys in Europe get to use (98ron)

[scotgary]

I can get 94 at most places, It's all I run in any of my bikes.

[Gixer1460]

On 11/15/2018 at 4:32 PM, scotgary said:

Hi Guys,

I'm ready to adjust cam timing on my GSX1100.

APE (Greg Cope) recommends 110 degrees both intake and exhaust.

Anyone else have a different recommendation?

The motor has oem pistons, Fresh valve seats, Mikuni RS36's and a Motogpwerks exhaust.

Thanks

Thats a good number and works well from mild through warm to wild - Greg does know his onions!. Some increased compression won't hurt!