1200 upgrade
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6th Gear
Joined: Apr 2014
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From: santa barbara
1200 upgrade
I've done the stage 1 upgrade & a 2 into 1 exhaust so i'm thinking of going to 1200cc, is there any downside to it? do you lose throttle response & get a ''lazy'' feel?
Tourer
Joined: May 2015
Posts: 359
Likes: 56
From: Dallas
I run stage one with simply drag pipes and I can say when I got the 1200 upgrade done I did lose some response but if definitely wasn't lazy. But this was with efi and I'm not sure if that is what you're talking g about or not since you didn't put a year or model. Regardless, it only felt that way because the shop tuned it like a piece of crap. Once I tuned it just right it runs better than it ever has.
there is no down side. i lost no response. my bike went from fun to F***! after tuning past the stage 1 download, the bike went to holy F***!
you will just re-tune if EFI and need to decide on keeping your 883 front sprocket or switching to 1200 front sprocket.
i'm not into digging in engines but, this would be a good time to consider cams since your rods will be out. not needed but, just throwing it out there. there are plenty of folks here that can help you.
i give it about an hour before people start telling you to get a hammer or NHRS kit because HD is evil.
you will just re-tune if EFI and need to decide on keeping your 883 front sprocket or switching to 1200 front sprocket.
- 883 sprocket gives you mean acceleration
, less smooth at higher speeds (i keep the 883 sprocket) - 1200 gives you smoother acceleration and better highway performance with lower rpms
i'm not into digging in engines but, this would be a good time to consider cams since your rods will be out. not needed but, just throwing it out there. there are plenty of folks here that can help you.
i give it about an hour before people start telling you to get a hammer or NHRS kit because HD is evil.
Last edited by cvaria; May 17, 2016 at 09:02 AM.
Club Member
Joined: Jun 2007
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From: Bedford UK
When considering a 1200 kit, be aware that there are several options. A very popular one is a 1250cc kit, which comes with new cylinders and pistons, plus gaskets, which with increased CR gives a serious boost in performance. Simply use Search for '1250' and you will plenty to read in here on those kits. There are a couple of excellent threads showing what is involved, which are well worth reading. One by Mich comes to mind. If you use a 1200 kit the work will be similar.
Last edited by grbrown; May 17, 2016 at 03:00 PM.
Banned
Joined: Jan 2015
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From: Wendover, UT
Cvaria covered it perfectly IMO.
The sponsor of this section of HD forums (DK Custom) sells an awesome 1250 kit:
http://dkcustomproducts.com/NRHS-Eng...-Parts_c93.htm
The sponsor of this section of HD forums (DK Custom) sells an awesome 1250 kit:
http://dkcustomproducts.com/NRHS-Eng...-Parts_c93.htm
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From: river
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Joined: Jun 2007
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From: Bedford UK
Take care which one you choose! They make a kit which converts your 883 bike to a bone stock 1200, which includes cylinder heads, etc, which is pretty expensive. There is also a SE performance kit which gives increased performance and is better value for money. You can get great performance at lower cost by using a 1250 conversion kit, as previously mentioned.
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