Sporty Question
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Elite HDF Member
Joined: Sep 2007
Posts: 4,541
Likes: 1
From: Nuevo México, Los Estados Unidos de América
Sporty Question
Sorry for my ignorance, but why do the 883s wiegh more than the 1200s?
Also, I heard that the 883s have a longer/heavier piston, and that if you keep the same piston (because you don't change the bore, just the stroke) when you go to 1200 or 1300+, you will actually produce more torque... is this true?
Basically, if you really want a hot-rod sporty, take an 883 and built it...?
Thanks
Also, I heard that the 883s have a longer/heavier piston, and that if you keep the same piston (because you don't change the bore, just the stroke) when you go to 1200 or 1300+, you will actually produce more torque... is this true?
Basically, if you really want a hot-rod sporty, take an 883 and built it...?
Thanks
Road Captain
Joined: Jun 2007
Posts: 552
Likes: 0
From: South Orange County, California
RE: Sporty Question
ORIGINAL: Herr Monk
Sorry for my ignorance, but why do the 883s wiegh more than the 1200s?
Also, I heard that the 883s have a longer/heavier piston, and that if you keep the same piston (because you don't change the bore, just the stroke) when you go to 1200 or 1300+, you will actually produce more torque... is this true?
Basically, if you really want a hot-rod sporty, take an 883 and built it...?
Thanks
Sorry for my ignorance, but why do the 883s wiegh more than the 1200s?
Also, I heard that the 883s have a longer/heavier piston, and that if you keep the same piston (because you don't change the bore, just the stroke) when you go to 1200 or 1300+, you will actually produce more torque... is this true?
Basically, if you really want a hot-rod sporty, take an 883 and built it...?
Thanks
Road Master
Joined: Aug 2007
Posts: 1,183
Likes: 1
From: Graham, NC
RE: Sporty Question
I think most of the 883 to 1200 conversion include new jugs and new pistons because they are a larger diameter. Most kits you don't have to change the rods or anything on the botom end, so you keep the same stroke. The cubes come from the increased bore diameter.
Club Member
Joined: Feb 2007
Posts: 16,320
Likes: 306
From: Boynton Beach, FloriDuh
RE: Sporty Question
ORIGINAL: mrb302
I think most of the 883 to 1200 conversion include new jugs and new pistons because they are a larger diameter. Most kits you don't have to change the rods or anything on the botom end, so you keep the same stroke. The cubes come from the increased bore diameter.
I think most of the 883 to 1200 conversion include new jugs and new pistons because they are a larger diameter. Most kits you don't have to change the rods or anything on the botom end, so you keep the same stroke. The cubes come from the increased bore diameter.
Road Captain
Joined: Jul 2007
Posts: 674
Likes: 1
From: FLORIDA
RE: Sporty Question
The 883 cylinder has ALOT of meat to in. When i did my 883-1200 big bore conversion, i had the cylinders bored out to accept the larger diameter pistons. From what i recall it took about 28 cuts to get the cylinders bored out to the correct diameter. The rods, push rods,rockers, need not be changed. I also had my heads domed out etc.The 1200 pistons were about 1/2 inch larger in diameter from what i recall,which gives you a good idea how thick the sleeves are to allow you to shave 1/2 inch off and still have enough left for strength and future rebuilds if need be. The 883 motor and cylinders are built very well and you can do quite abit with one of them motors. I will tell you though that i did not realize an 883 weighs more. Thats interesting.
Road Master
Joined: Dec 2007
Posts: 1,125
Likes: 22
From: Phoenix, AZ
RE: Sporty Question
ORIGINAL: but why do the 883s wiegh more than the 1200s?
Also, I heard that the 883s have a longer/heavier piston, and that if you keep the same piston (because you don't change the bore, just the stroke) when you go to 1200 or 1300+, you will actually produce more torque... is this true?
Basically, if you really want a hot-rod sporty, take an 883 and built it...?
Also, I heard that the 883s have a longer/heavier piston, and that if you keep the same piston (because you don't change the bore, just the stroke) when you go to 1200 or 1300+, you will actually produce more torque... is this true?
Basically, if you really want a hot-rod sporty, take an 883 and built it...?
Due to same stroke, bigger bore yet still low rpm (under 7k) the 1200 does not get high hp values, when compared to something like the v-rod. Both the hp & torque go up due to the increased bore of the 1200 ... but don't forget larger valves allowing more air.
If you really want a hot-rod sporty you can get 79, 80, 88,90, 99 & 100ci bore & stroke kits. Including cast jugs for better heat retension on the 1/4 mile! Cost for the kits is often $3k and up.
http://www.axtellsales.com/
http://www.zippersperformance.com/ca...ts.asp?cat=865
http://www.sscycle.com/
The problem with many of the stroker kits is the piston to piston skirt clearance. The skirts often have to be machined to keep from coliding at BDC. This is why these engines have poor engine life compared to near stock displacements.
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Road Warrior
Joined: Jan 2007
Posts: 1,319
Likes: 2
From:
RE: Sporty Question
ORIGINAL: Herr Monk
Sorry for my ignorance, but why do the 883s wiegh more than the 1200s?
Also, I heard that the 883s have a longer/heavier piston, and that if you keep the same piston (because you don't change the bore, just the stroke) when you go to 1200 or 1300+, you will actually produce more torque... is this true?
Basically, if you really want a hot-rod sporty, take an 883 and built it...?
Thanks
Sorry for my ignorance, but why do the 883s wiegh more than the 1200s?
Also, I heard that the 883s have a longer/heavier piston, and that if you keep the same piston (because you don't change the bore, just the stroke) when you go to 1200 or 1300+, you will actually produce more torque... is this true?
Basically, if you really want a hot-rod sporty, take an 883 and built it...?
Thanks
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Road Master
Joined: Dec 2007
Posts: 1,125
Likes: 22
From: Phoenix, AZ
RE: Sporty Question
unless you do head work then you are cheating yourself and leaving alot on the table,
alot of people think they are generating more torque by simply re-jugging but in reality it is the transmission . an 883 is geared lower and gives the impression of the motor making more torque.
alot of people think they are generating more torque by simply re-jugging but in reality it is the transmission . an 883 is geared lower and gives the impression of the motor making more torque.
883 front sprocket 27 tooth.
1200 front sprocket 29 tooth.
Road Warrior
Joined: Jan 2007
Posts: 1,319
Likes: 2
From:
RE: Sporty Question
lol you can stick a potato in the exhaust and increase compression also but if the motor dont breath your not going anywhere very fast. 883 heads on a 1200 conversion area waste of time . for what it would cost to have them machined you could buy a set of 2004 or up 1200 headswhich are some of the best the moco has produced and still have money in your pocket. and yes asmaller sprocket gives greater gear reduction than a larger one.