103 stage IV?
Tourer
Joined: Mar 2007
Posts: 431
Likes: 0
haven't seen a dyno from one yet...wouldn't waste my money on those heads and cams...I'd have my stock heads reworked and use a short cam...I'm assuming this is for your ultra...I also have some other ideas, pm me if interested
Ultimate HDF Member
Joined: Jan 2008
Posts: 6,532
Likes: 132
From: SoCal
Might try one if I get a good deal on it for my 08 SG . It comes w/a 58 Tb that will work with cruise control and fuel injectors along with a bunch of other stuff, like super tuner, hd clutch spring and pushrods. Thinking that the 260 cam might be too top-end so I am thinking about getting a woods 408 to have around if that is the case. Have seen the heads in person and I know you can't tell by looking but they sure look good.
Road Master
Joined: May 2007
Posts: 851
Likes: 5
From: Mitchellville, Ia.
You can tell by looking at those heads and the two most important things as far as I'm concerned have been taken away from the engine with these heads and throttle body. The heads lack velocity and squish area and the throttle body lacks flow and plenum. Have your heads reworked and use the stock TB or get a HPI.
Ultimate HDF Member
Joined: Jan 2008
Posts: 6,532
Likes: 132
From: SoCal
Oh the heads I saw were the 110+ cnc ported mva heads and they were in a kit with the matching 10.5 comp pistons, for 2400 dollars with all of the stuff needed to finish except comp releases and harness. Everyone seems to hate these heads but might be worth a try in a engineered package like this, all the experts on this forum are always touting the merits of an engineered package so why not this one?
Thread Starter
|
Advanced
Joined: Nov 2004
Posts: 59
Likes: 0
From: Cleveland, Ohio
This is why it caught my attention. Everything appears to be in the kit and put together with a reason. I asked the head wrench at my dealer about it and he said that before this came out he would put together a similar package - only it would cost more $.
He showed me some dynos of bikes he set up this way and the numbers looked pretty good. Over 103 for both tq and hp. I was checking to see if anyone has tried this set up. For a SE package it doesn't look too bad.
He showed me some dynos of bikes he set up this way and the numbers looked pretty good. Over 103 for both tq and hp. I was checking to see if anyone has tried this set up. For a SE package it doesn't look too bad.
Trending Topics
Ultimate HDF Member
Joined: Feb 2007
Posts: 7,663
Likes: 7
From: Northeast Ohio
My 95" had 102/112. My 103 was 112/118. Neither was an engineered HD package. Both had the torque where it was useable, peak being 2200 to 2600. This is my theory, HD under engineers their packages with a huge margin for safety. That being said, the aftermarket has taken it to the next step, both greater performance and reliability. You just dont hear of engines grenading with aftermarket, well built and engineered packages. Do a little research, ask more questions and then make a decision. HD is there to sell you most anything they can make a buck on. Not saying their stuff is bad, just that there is better that is available.
Talk with Doug at HeadQuarters, Steve at GMR, Randy at Hyperformance, etc and you will get the right stuff.
Talk with Doug at HeadQuarters, Steve at GMR, Randy at Hyperformance, etc and you will get the right stuff.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Road Master
Joined: Jan 2007
Posts: 1,221
Likes: 2
From:
Alot of good info, ya really should consider steppin out of the SE box, and do some serious research, you'll learn alot before you know it. I believe one of the worst things you can do is go and buy all the best SE parts. You'll regret it later when you start comparing your results with other builds outside!
Sponsor
Joined: Dec 2007
Posts: 12,084
Likes: 829
103 square from a 110"?
Last 110" we did with a Wood 8, 55 HPI t/body, D&D Fatcat standard baffle, and those CVO heads modified, ran 122 hp and 127 ft lbs. Big torque very early as well.
With a set of pistons and a 9B, could show 130 square,(have seen those numbers on Harley 113", without pushing) but may move the peak over to the right a tick.
Last 110" we did with a Wood 8, 55 HPI t/body, D&D Fatcat standard baffle, and those CVO heads modified, ran 122 hp and 127 ft lbs. Big torque very early as well.
With a set of pistons and a 9B, could show 130 square,(have seen those numbers on Harley 113", without pushing) but may move the peak over to the right a tick.
Last edited by Hillsidecycle.com; Nov 19, 2008 at 11:04 AM.