hi i got an 08 wide glidenow i put in a 103 kit 255 cam with s.e heads, i got v&h side shots, s.e air filter, and a s.e 50mm thottlebody. the question is would you guys gone any thing different eg like use a another cam to make the bike faster. guess i been thinking if the heads can take a high lifing cam should i use one and will using a diffenrent cam make me lost low down power. also is a 58mm thottle a over kill. would like your guys option on this.

 

103 with 255 cams and 500mm can make 120 ft lbs of torque.
If you have the right head set-up.
HD use valves that are too large for street(in my view).
If you are looking to only make good power above 4500, then those heads are good.
A 58 mm is too large for 103. You can get a high lift cam, and depending on what it is, make more horsepower. But low end torque will almost certainly drop further.

What are you aiming for?
A decision has to made in respect of where the maximum power range is to be positioned.
If you want the best usable torque for street use, then, to my mind, you have the wrong heads already.
But you have the best cams, that's for sure.
Define faster.
What does that mean to you?
Is faster the best acceleration, or the highest top speed?

 

i was aiming for the best accertion. what heads would you recommed to use. what wrong with the s.e ones i got the d shape ones. thanks for your repile

 

Can you post a dyno sheet of a 120TQ SE255? That seems kinda high.

 

I have a carburetor on my bike, but way to go is the 58 MM body fuel injection set up. Acceleration will be great, top hp and torque also will also improve, it may run a bit uneven when cruising. I wish i could run this set up on my bike.

 

A 58mm is too big.

 

Just make sure all your parts work well toghether. ie. cams heads.
Those SE-255 are trash had them before they stopped pulling at 4k rpm.
Recommend you get rid of them.

 

so what cams would you use se 260

 

Se 255 do not stop at 4 k.
They are a great cam, for the right application.
58 mm is too big for 103.

120 Tq comes from
Cast flat top
ported 2006 heads(by me, so obviously they are unbelievably awesome)
1.9 inlet
1.65 ex
valve protrusion set to minimum
30 thou cometic head gaskets
200 psi ccp
SE 50 mm
Heavy Breather
SE 255
S+S reed breather
Slip on HD slash cut
TTS

100 Tq is reached by 2000 rpm

Very rideable, unlike the likely results of other suggestions, which would leave you broke and sad.

I do not know the top speed of that particular bike on the road, but it ran out to 160 mph on a dyno. So should be good for something reasonable.

I cannot stress enough that the power has to be where you will actually use it.
To have a combination the makes peak tq at over 5000 rpm sounds good, and looks great on paper, but is no where near as much fun to ride as a bike that makes good power in the rev range that it is actually ridden in the vast majority of the time.

The rubbishing of parts is common when other factors, usually inexperience, and lack of engine building and tuning knowledge, are the true reasons that performance was lacking.

120 tq is high for a 103. I agree. Thank you.
Do not confuse me with all the others out there who think 100 is a big number.
I actually know what I am doing.

 

Your advice is appreciated and it does sound like you know what your doing, so would you mind suggesting the proper build for my 96" 2010 WG?
I've already got Samson shorties (which I would like to keep as I like the look), SE Ventilator, and PCV. The local tuner is willing to build the 96 to my specs so what would you suggest for a good road build? Thanks.