hi everyone, I'm actually from the Dyna section however my friend wants to build his 13 72 sporty 1200. Yea, I may have been pushing him to do this. Anyway this would be my first time upgrading a 1200 (more experience on 103/110) so I'm interested to hear what others have done and what the results were.

Hes lookin at the screamin eagle stage 4 kit but I think he might be better off with s&s or a 1250 kit with heads. I like how the 1250 includes gear drive cams and runs 11.2:1 compression over she's 10.5, and it's much cheaper which saves money for upgraded heads and larger throttle body.

Thank you you for any advice/input.

 

The best game in town for big bore, headwork, cams, etc. and great people to work with.
Hammer Performance

 

Why do the 1250 when you can do the 1275 kit. Sounds like money is not an issue.

The S&S 100" kit seems WAY over priced for the power you get. I saw a dyno with "only" 100hp. I say "only" because a mild 1275 set up will hit 100 hp at a fraction of the price.

Hammer 1275 kit. All you have to do is call and tell them how much power you want to make. They send you a quote with parts list to meet that.

 

http://www.hammerperf.com/tthoppingup1200.shtml

 

ive never heard of the 1275 kit (more familiar with 103/110). Yes money is an issue, but since he wants to do it over the winter, he has started saving in advance. I will look into the 1275 but I agree with the 100 ci being way overpriced. Are there any other larger displacement kits available? Thank you for the help

 

Hammer Performance has replaced their very popular 1250 kit with the new 1275.

 

i have the 1275 kit and love it! impact cams and impact heads service.

Best upgrades are, intake, exhaust, fuel management (i like power vision), 1275kit, and an oil cooler.

 

If he wants much more than 1275, then he has to get into boring out the case which means big $$$. I forget the cubic inch max before you have to bore...low 80s? You get to a point of diminishing returns. If after the 1275 he has a few bucks then you work on the heads. With all this you're into the 125hp range which will eat almost any other worked HD out there and keep with some of the jap bikes.

 

I'm gonna guess that between the last 6 years (when he asked this question), and now..... he figured it out.
But I'm just guessin'.

 

Umm the thread was started 09-24-2017 2017 and the last post before yours was 09-25-2017. At lesst from what I see.