How Much Hp/TQ is required too...
Compresion releases are pretty much manditory for any decent build, they help save your starter and are wonders on these hot summer days, and battery life!
I have a carbed bike and with any increase in compresion and cam timming the proper ignition is paramount! so I had a custom Head Quarter timming map made for my Dayton twin tech ignition.
no worries!
I have an 07 FXD. 96"Pipes, air cleaner and Race Tuner.
No won will give a straight answer as to the original HP and approx what the torque and HP are now after the work.
I know it woke the bike up, like night and day. No I did not dyno the bike. I am not racing, it is for my information.
At some point in the not to distant future I will add cams.
I know its expensive but he best thing is to dyno yer bike before and after.
I've been told the 96 is like 65ph anbd 72 tq or something like that stock. When you do a good set of pipes you got like72hp and say 78 tq.
If you do cams you need to have yer heads PP to let the motor run better and make more HP, and match yer cams to yer compression.
if you do it right you dont have to have any comp release. i have 11.1 and dont have any and it starts just like it did stock it is all in the cam lope
if you do it right you dont have to have any comp release. i have 11.1 and dont have any and it starts just like it did stock it is all in the cam lope
You need a certian amount of cylinder pressure to suport different sizes of cams, so latter intake valve timming will require more staticcompresion to operate properly.
The whole reason to add compression it to build some torque, I dont want to throw it away putting too large cams it just to dodge the releases
duh, I have not acually built a HD engine this way, (because I know better), but ive done it before and way very dissatisfied with the results,Now if the engine is only going to be operated at WOT then all I have said is nonsence!
but for a every day rider this should be carfully taken into consideration
And this aproach makes tunning more difficult in the low and midrange, on carbed engines it gets weirder.
Ignition timming is very important too! this is where you want to make your fine tuning!
The Best of Harley-Davidson for Lifelong Riders
i agree to disagree. i ride my 06 wideglide yr around. it dont matter if it is over 100 or at freezing my bike runs fine. i will say that i do have alot of tuning in my bike. i have good power all through the rpm range and it peaks at over 100/100. i have been able to do this with out comp releases and with out losing ride ability. look at the dyno sheet to see the power band
A lighter bike like a Dyna would be better suited to this type of build, but as your dyno sheet clearly shows its not too strong on torque from 2k to almost 4 k, where most riding is done.
I have 100 lbs at 2400 rpm to almost 5k. Its more of a bagger setup, but thats what I like.
Viva la difference!


