I need to know what you guys are running in a se 103 kit bike as far as cams go and what do you think.

Thank you
George

 

SE 258 cams
103+SE heads
10.5.1 pistons

 

What do the 258 cams do for ya? I have the ones that came with the kit, the 255(I think). That small of a difference can't change that much, can it?

 

Cant help ya with that one Marvincbr.
My setup was not the kit. It was pieced together with the high compression pistons and the 103+ HO heads whichhad some work done on them. They require compression releases on the heads also. Not sure if that has anything to do with it or not but someone will chime in and answer your questionI'm sure. I had 251 cams which give you some good low end TQ with a few HP loss. The 258's gave me more HP.

OTB

 

Here's another option that should yeild better results than the S/E cams...

From: http://www.head-quarters.com/html/tc_cams.html

HQ-0033-G “Tornado”

These cams are for use with Twin Cam ported heads used on the 1450 & 1550cc motors. Pulls progressively harder from idle all the way up. Works best with 10.5 thru 11:1 motors. Very strong upper range making it ideal for lighter bikes like the Dyna. Also works extremely well in 103, 106 and 107” engines around 10:1- 11:1 compression ratios. Requires our HQ-2007 valve spring kit.

Timing specs measured at .053” tappet lift.
Intake 19/47 246 .600” lift
Exhaust 52/24 256 .530” lift

It's also available for 2007's (and 06 Dynas). This version is called: HQ-TC-600-HC“Josey Wales”

 

I tryed an email to www.nightrider.com and this is what he told me to do.

I like the SE-251 cam. Greatly under-rated by most HD Dealers, this is a very solid performing cam that does have the potential for a broad flat torque curve and somestrong HP in the upper range. This is also a cam that is ideally suited for the mild 9.5:1 compression ratios that should be run on FLH based bikes to prevent detonation and serious overheating above/beyond the normal high temps HD engines experience. Do not confuse mild compression with low power. Good aftermarket shops can get 110-115HP from 95/96/103 engines with this lower compression.[/align][/align][align=left]Stephen Mullen[/align][align=left]www.Nightrider.com[/align]

 

Will the extra power of the 251 cam or similar cams cause a problem with the crankshaft bearings on '07 touring models?
thanks
Dave

 

Dear Dave
look at www.nightrider.com he spells it all out. Keep in mind I ordered a 08 SG and do not plan on beating the living you know what out of it. I have a FXR for that. This will be my road bike that I will run hard but not kill.
I am not saying anything as far as what I know. All I am saying ask questions and mod the bike for what you need.
Remeber everything breaks if you try to kill it. That is the problem being an engineer for a living.
FIX IT UNTIL YOU BREAK IT.
You have to know when to stop.
This will help better http://www.nightrider.com/biketech/h...e_upgrades.htm

 

George,
I'm with Marvin; went with the ones that came in the Stage II kit. Works well for me. JMHO