Thread: 04 vs newer Sportster
03-20-2009, 03:22 PM #1
04 vs newer Sportster
im looking at an 04 sportster with the 155hp 4 tec. is this the same platform as the 215hp/ 255hp motor? Same platform I mean that is the motor the same size? pistons and all? Whats the differnce? S/C?
03-20-2009, 09:48 PM #2
same basic powerplant and technology.. yes
same exact components? no.... same bore, same stroke, same everything.... various camshafts, various compression ratios from pistons, and several other very minor differences...
the 155 is built for NA... higher compression cast pistons
the supercharged units are lower compression forged pistons
ur getting the same block, same crank, same rods, same bearings, technology, etc.... but all different variations in HP derived from cams, pistons, superchargers, ECUs, etc
03-21-2009, 08:21 PM #3
so basically i cant throw a S/C on it and call it good...thats what I was wanting to know if i could or not to get the HP. This boat was at a farm auction today and was thinking about bidding on it if i could.
03-21-2009, 08:27 PM #4
yea u def can't do that....
you would need pistons, overdrive gears, cam, exhaust valves, pto cover, ecu plus a supercharger just to list the major ones...
not cheap parts by any means, it would be a pretty involved conversion, would have to pull the entire motor apart and rebuild.
how cheap did it sell for at the auction? if the price was right you coulda cheaply pulled off the supercharger conversion with some fenagling of deals on the board
03-27-2009, 08:57 AM #5
$6,000 is what he got it for.
03-27-2009, 10:59 PM #6
im a noob in the 4 tec world....so what are some easy/cheap mods for the 155 4-tec?
03-28-2009, 09:56 AM #7
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