How to make my iron 883 faster - Harley Davidson Forums

Sportster Models 883, 883 Custom, 1200 Custom, 883L, 1200L, 1200S, 1200 Roadster, XR1200, and the Nightster.
Sponsored by:
Sponsored by:

How to make my iron 883 faster

Thread Tools Search this Thread
Old 05-03-2013, 12:20 PM
Rlindsey59 Rlindsey59 is offline
New Member
Thread Starter
Join Date: May 2013
Location: San Diego
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Default How to make my iron 883 faster

Is there other mods I can do to my bike to increase its performance besides 1200 conversion kit
Reply With Quote
Old 05-03-2013, 12:57 PM
Reaper_Crew's Avatar
Reaper_Crew Reaper_Crew is offline
One Of The Regulars
Join Date: Jan 2013
Location: West Chicago, Illinois
Posts: 225
Thanks: 0
Thanked 0 Times in 0 Posts

Welcome to the forum.
First place to start would be pipes and air cleaner. Then fuel management/computer.

Ive been hearing great things about this recently. Even on stock bikes
Reply With Quote
Old 05-03-2013, 01:03 PM
IRON1250 IRON1250 is offline
Road Master
Join Date: Apr 2012
Location: New Hampshire
Posts: 1,155
Thanked 9 Times in 8 Posts

Originally Posted by Rlindsey59 View Post
Is there other mods I can do to my bike to increase its performance besides 1200 conversion kit
1200 kit will not make your bike have any higher top end speed. so in reality it makes your bike quicker not faster. you can get to top speed faster with more horsepower, but the only way to raise top speed is to change your gearing or change the top rpm range so the motor will turn faster. you can change your front drive sprocket to one with more teeth for a slightly higher top end speed, but this would take away some of your quick take off that you have with the 883 sprocket. you could do pipes, air cleaner, drop in cams , then get a power vision or thundermax to allow for better air/fuel mixture and to raise your rev limiter rpm. if you were to do all this work it would be a shame not to go all out and do the 1200 kit and head work. so to answer your question there are many things you can do to improve your performance, it just depends on how much and what kind of improvement you want. also how much you can spend to get it.

Last edited by IRON1250; 05-03-2013 at 01:15 PM.
Reply With Quote
Old 05-14-2013, 09:00 PM
Stonetone Stonetone is offline
One Of The Regulars
Join Date: Jan 2013
Location: Brookshire, TX
Posts: 113
Thanks: 0
Thanked 0 Times in 0 Posts

I've been tinkering with this very thing for about 9 months on my 2013 iron. An air intake and a 2 into 1 exhaust would be your cheapest route to a fast increase in HP. A power commander or fuel Pak will squeeze a few more HP out of that set up. After that, I found that a 1250 kit was my biggest bang for the buck. I went from 38 HP to 70. Your top end speed won't go up much. Maybe only 5 MPH, but you'll get there a whole lot faster. If you change your cams, you can change all that HP to whatever you like. If you want a quick 0-60 speed then try the Andrews N4 cams. If you want that higher top end speed maybe go with something like the N6. An 883 clutch only lasts about 100 miles with all that HP though. I learned that the hard way.
Reply With Quote
Old 05-14-2013, 10:11 PM
bwana1's Avatar
bwana1 bwana1 is offline
Road Warrior
Join Date: Feb 2009
Location: TN
Posts: 1,727
Thanked 10 Times in 7 Posts

There is no replacement for displacement.

Pipes, air intake and brand X tuner will give you a 10% boost. BFD, 10% of 48 is a whopping 4.8 hp increase.

The only way an 883 will perform, as in quick, is with a 1200/1250 kit and a tuner such as a SEPST that will raise the rev limiter from 6200 to 7000. Now, depending on how much engine work $$, your hp will run from 80 to 100+.

Reply With Quote
Old 05-14-2013, 10:18 PM
Sensei Jim Sensei Jim is offline
Senior Rider
Join Date: Jan 2012
Location: florida
Posts: 448
Thanks: 0
Thanked 0 Times in 0 Posts

One could always lose weight :-))))) I'm going for the hammer 1250 when I get the cash.
Reply With Quote
Old 05-15-2013, 12:48 PM
grbrown's Avatar
grbrown grbrown is offline
Club Member
Join Date: Jun 2007
Location: Bedford UK
Posts: 37,702
Thanked 993 Times in 921 Posts

A genuine Harley 1200 conversion kit includes new cylinders, cylinder heads and a whole bunch of other stuff, to make your bike exactly like a stock 1200. It is expensive. A much cheaper alternative is an aftermarket 1250 conversion kit, which uses your stock heads and simply includes cylinders with pistons and gaskets, it will also need a tuner. It really is well worth considering! To get anywhere near the same performance increase by staying at 883 will cost much more.

Use Search for '1250' and read some of the recent threads on the subject.
Reply With Quote
Old 05-15-2013, 01:15 PM
Glenpocalypse Glenpocalypse is offline
New Member
Join Date: Jun 2011
Posts: 75
Thanks: 0
Thanked 0 Times in 0 Posts

This is an interesting question. And as others have already stated you could just do a 1250 kit and TBH that seems to be the best route to go.

But, if you aren't interested in more displacement you can always stay with the stock 883 and modify things like the heads, cam, pistons, exhaust, air cleaner, and a good tune. I am sure the stock motor from harley is not as powerful as it could be.

I would be really interested in what one could achieve sticking with stock displacement and modifying the aforementioned engine parts. It could possibly cost less. But, you are never going to get the HP you could get from more displacement.
Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
My FLD odie-in-az Dyna Glide Models 9 11-25-2013 11:19 AM
My Nightster drosgarage Sportster Models 17 10-14-2012 12:06 PM
my iron 883 custom saul Mexico Sportster Models 24 10-31-2011 06:16 PM
My 2000 1200 custom JJJ72 Sportster Models 3 08-21-2011 12:01 PM
My Fatbob fatbob206 Dyna Glide Models 16 06-09-2011 11:18 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Featured Sponsors
Vendor Directory

All times are GMT -5. The time now is 01:09 AM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: