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Iron 883 - 1250 conversion build pics

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Old Mar 23, 2012 | 08:28 AM
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Default Iron 883 - 1250 conversion build pics

so i decided to bite the bullet and get the 1250 conversion from NRHS. first of all a big shout out to NRHS, their work is top notch! those cylinders/ pistons look high quality and their headwork is awesome.
also a big thanks to fuelmoto for providing me with a map to start it up and ride while i broke in the engine.
here is the list of mods that were done to it:
-NRHS 1250CC jugs and cylinders
-NRHS stage 1 headwork on stock 883 heads
-Screamin Eagle .551 cams
-D&D bobcat exhaust
-Screamin Eagle stage 2 intake
-stock spark plugs
-screamin Eagle sparkplug wires
-power commander 5

the last picture of her in all her 883 glory. ready to be taken apart.

tank and pipes off

rocker covers off

heads off ready to be sent to NHRS

and my sister helping me take out the jugs

look at those pistons! mother of carbon!!

how she sat for 3 weeks waiting for her new heart


stock cams off

new cams in *as a note i later found out that i was one tooth off between cam 1 and 2 so i had to go back and fix that. i forgot to take a pic of how the cams are now. *

look at those brand spanking new pistons installed!!

heads back in

new pipes back in

aand loading map ready to start up

and after heat cycles complete ready for my first ride on it.


i just put the first 500 miles in a week ( i drove up and down lol ) ! i rode everywhere! and when it hit 600 miles i took it straight to the dyno.
the results?
89.9 @ 5900 hp and 86.1 @ 4600 tq (pics will be up later)
while the hp number seemed kinda low, i wasnt expecting big hp out of this cams but i must say im happy with the torque number!

on the street the bike is awesome!! it pulls hard! night and day difference from the 883! it doesnt have the wheelly poppin' sportbike acceleration but it surely is faster than any other harley i've ever been on!

for those of you on the fence of doing a 1200 conversion to your 883 do it! and if you are a bit mechanically inclined and have some tools laying around its definately doable by yourself. no need to get ripped off by a mechanic or the stealership on labor.
all the work was done by me with the help of my sister and my dad.
 

Last edited by wrussi; Mar 23, 2012 at 04:10 PM.
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Old Mar 23, 2012 | 08:46 AM
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Excellent report and good looking numbers. Well done!
 
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Old Mar 23, 2012 | 08:59 AM
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Nice work. Very good tuned exhaust system.

Question, how many miles did you have on the motor before the work ?

J.
 
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Old Mar 23, 2012 | 10:34 AM
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Originally Posted by John Hyatt
Nice work. Very good tuned exhaust system.

Question, how many miles did you have on the motor before the work ?

J.
the bike had 11k i ride it a lot
 
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Old Mar 23, 2012 | 10:48 AM
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Nice job! Thanks for the write-up, and I'll bet with these mods you'll surprise more than a few sport bike riders!
 
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Old Mar 23, 2012 | 10:52 AM
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Great work. Nice of you to let your sister handle the jugs.

John
 
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Old Mar 23, 2012 | 11:07 AM
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Awesome. How much $$$?
 
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Old Mar 23, 2012 | 12:02 PM
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Thanks.

That just seems like way too much build up on the piston tops for that year bike. 11,000 miles also dosent equal that kind of exposure. Intersting.


J.
 
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Old Mar 23, 2012 | 12:30 PM
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Thanks for the write up and pictures. I was about to ask the same question. How much did all the parts cost since you did the install yourself?

I see you were doing the work in a storage unit. I was limited to a storage unit and an apartment carport for a long time..winters were no fun. Can't wait to get a garage soon!
 
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Old Mar 23, 2012 | 02:19 PM
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Originally Posted by NRHS
90 hp and 86 ft lbs of torque are excellent numbers with the 551 cams. 86 ft lbs of torque must feel frickin awesome off the line!!! How many rpms did you take it to to get 90 hp?

BTW, it is NRHS not NHRS.
uppss sry about the typo, it makes all the power like at 5800-5900 then it kinda dies until 6400rpm redline
i'll post up the dyno sheet later on tonight.
 
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