88" upgrading
Seasoned HDF Member
Joined: Jun 2017
Posts: 5,315
Likes: 4,272
From: Granville New York
Yeah...140 hp out of a 100"??? Anyway...if your motor guy has been building motors for 40 years why are you here asking random people on the internet? Lol. There are alot of guys on here that know their ****. I'm just saying for every one good piece of advice I've seen 2 or 3 very bad ones. Your guy should have a combo that would work for your riding. Why's he doing it for free? Is he a friend? Well here's my crappy advice...skip the "kit" and get your cyliders bored and decked. With money you save by only buying what you really need ,you should buy a goid tuner...probably not an fp3...agsin just my crappy opinion
Seasoned HDF Member
Joined: Aug 2014
Posts: 10,562
Likes: 5,149
From: Robbm sucks
Whoops I misunderstood your goals . The commander doesn’t flash your ecm. It has to be connected to function. The dynojet power bison will flash and doesn’t need to be connected after unless you want to fine tune or monitor stuff.
I agree with with hatt, 140 sounds kind of optimistic.
edit : power bison haha.
I agree with with hatt, 140 sounds kind of optimistic.
edit : power bison haha.
Last edited by kngpn; Jul 18, 2019 at 07:24 PM.
Stellar HDF Member
Joined: Nov 2004
Posts: 3,156
Likes: 41
From: So Cal
Thank you all for your input... I found an s&s 4" big bore kit comes with everything needed has 585ge cams s&s tc3 oil pump and plate hydraulic tensioners or option for gear cam which wint work on my bike ezee pushrods s&s tappets and does not require a fuel pak or replacement of springs or heads... stock head will bolts right on the current exhaust will bolt on and the only requirement I cannot take care of myself is the dyno tuning.. it brings the 88" motor w67 hp to 100" around 140hp so i think that's going to be my winter time consumer right there... the 585ge cams are a mid range to high range cam setup and everything is included in the kit after tax looking at 2876.41
100/100 is probably the best you will ever get out of that kit with a lot of good tuning and with those cams probably more like low 90s. Check out the reviews on the S&S site in the above link users are very happy with the outcome but the true HP/Tq is closer to 90. My Fatboy is a 2005 that came with a factory 95 kit but stock heads and a very mild cam. I changed cams to SE 204, exhaust, A/C and pipes and with the Power Vision (originally I had a Power Commander) and a great MAP it made 91/95 last time on the dyno in 2011.
To get over 100/100 out of a upgraded 88 will take valve and head work. And as already said rods and welded or replacement crankshaft.
If you really want that kind of power buy a newer bike or do a complete engine replacement with something like a Ultima 107-113, S&S 124 or Jims but your starting at
$ 7000 plus labor, and then you get into transmission and do you want to keep belt drive or chain?
Last edited by XARAN; Jul 19, 2019 at 12:03 PM.
Supporter
Joined: Sep 2006
Posts: 3,714
Likes: 650
From: San Ramon, Ca
Whats the scoop with the Screamin' Eagle Race Tuner ?
When I got the 03, they had put pipes and an air cleaner on it.
It came with that Tuner.
This winter, I'd like to do cams & different pipes. Those VH straightshots are good
for setting car alarms off, but that's about it. This thing has NO mid-range power.
All this tuning & programming etc . . . I MISS MY CARBURETED BIKE !!!!
When I got the 03, they had put pipes and an air cleaner on it.
It came with that Tuner.
This winter, I'd like to do cams & different pipes. Those VH straightshots are good
for setting car alarms off, but that's about it. This thing has NO mid-range power.
All this tuning & programming etc . . . I MISS MY CARBURETED BIKE !!!!
Last edited by byersmtrco; Jul 19, 2019 at 01:53 PM. Reason: Cuz I kant spel
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