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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.
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 107â engines around 10:1- 11:1 compression ratios. Requires our HQ-2007 valve spring kit.
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
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