113" final tune : V-Twin Forum: Harley Davidson Forums

PanHDSam · 11-03-2009, 11:22 AM

Its time, this Friday, for final tune after break in. We will be replacing SE ignition with something?? Leaning towards S&S IST ? Would appreciate hearing others experience w/ignitions on big bore builds.

build is:

113" 4.060 bore 4 3/8 crank and wheels Wiesco 10.5 to 1 pistons

S&S .625 gear drive cams Roller rockers Mikuni 42mm carb

Rinehart true duals

Thanks for any suggestions on the ignition system.

tidesign · 11-03-2009, 01:51 PM

se is not a bad system? you may want to look at crane dual ignition (part #8-1100) and dual coil (part #8-3006).

my pr113 is 10.25:1, pr3 .608 cam, 4.5" stroke, 4" bore and typical 42 mikuni

HDMD88 · 11-03-2009, 02:18 PM

Daytona Twin Tec makes a good ignition system also.
Doc

hdryder · 11-03-2009, 03:29 PM

Am I wrong in thinking that 42 mik wont do your build justice?

TXCHOP · 11-03-2009, 03:38 PM

I will 2nd the DTT ignition.....Custom map capable by the right tuner.

Hdryder, i think the same thing. High flow pipes and midrange cam and a small carb..

claydbal · 11-03-2009, 03:53 PM

Quote:

Originally Posted by TXCHOP

I will 2nd the DTT ignition.....Custom map capable by the right tuner.

Hdryder, i think the same thing. High flow pipes and midrange cam and a small carb..

happens alot.

PanHDSam · 11-03-2009, 06:13 PM

Quote:

Originally Posted by claydbal

happens alot.

I have heard this more than once. Also been told to go back to the CV. After this tune and Dyno ill see whats what and then consider options on the carb. Clay do you tune and if yes, would you be interested in tuning this one? We cant be to far apart.

Still undecided between S&S and DTT ignition. One tuner said he needed to put bungs in the head pipes to tune correctly / the other never mentioned it.

Getting mixed signals. However both have put nicely tuned motors out of there shops.

ejk_dyna · 11-03-2009, 06:19 PM

<<Am I wrong in thinking that 42 mik wont do your build justice?>>

PanHDSam · 11-03-2009, 06:26 PM

Quote:

Originally Posted by ejk_dyna

<<Am I wrong in thinking that 42 mik wont do your build justice?>>

Ill pull the Super B of the DuoGlide and take it with me, Justin Case.

aharp · 11-03-2009, 08:43 PM

Run the DTT. The S&S IST picks up too many other rattles through the knock sensor

tolobill · 11-03-2009, 09:44 PM

hello, not trying to hijack the thread, i have been to several tuners in georgia, and cant find one that can tune a carb. if you dont want to mention names, email me who can tune thanks.

Fixuntilbroke · 11-03-2009, 09:52 PM

i own both ignitions and the 1/3 price dtt is much better, ist sucks

strokerjlk · 11-03-2009, 11:25 PM

Quote:

Originally Posted by Fixuntilbroke

i own both ignitions and the 1/3 price dtt is much better, ist sucks

good advice

CV 44 would be my choice for carb
just saying

claydbal · 11-04-2009, 07:59 AM

Quote:

Originally Posted by PanHDSam

I have heard this more than once. Also been told to go back to the CV. After this tune and Dyno ill see whats what and then consider options on the carb. Clay do you tune and if yes, would you be interested in tuning this one? We cant be to far apart.

Still undecided between S&S and DTT ignition. One tuner said he needed to put bungs in the head pipes to tune correctly / the other never mentioned it.

Getting mixed signals. However both have put nicely tuned motors out of there shops.

would be happy to help, but i would refer ya to t-man. hes probably closer. PM sent.

Bruce Woltz · 11-04-2009, 09:30 AM

Quote:

Originally Posted by strokerjlk

good advice

CV 44 would be my choice for carb
just saying

Why would you use the 44? I flows less than a HSR42.. I'd go for a CV51, HSR45 or G. CV51 on Tman manifold would probably be my first choice. Would tweak the 51 slightly tho, Bruce