68 Views and not one post?
If this request out of line, let me know and I'll delete it!
:sucks:
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If this request out of line, let me know and I'll delete it!
:sucks:
??
Hippo:HIPPO said:Too lazy to look the pistons up by part#
All I would say is that if it really has 10.5 CR and 203 cams and is still starting it is one amazing bike.
Not even clear what heads are on it.H-D and included the 95" Stage II Big Bore kit along with the standard (non htcc/ported) Screamin Eagle Heads.
Where in WV are you? Seems like there should be a Dyno within a couple hours of you.WVRDKING said:AFAIK, it's never been on a dyno as they are far and few between in our part of the country.
Sorry if I wasn't clear and had everyone confused..........:duh?:HIPPO said:Not even clear what heads are on it.
Do you mean HTCC (non CNC ported)?
If so they are not compatible with the part# piston you posted, I looked and it is a high compression forged piston for use with either stock or SE performance heads.
If it has SE performance heads (which is most likely) and those pistons, while the HD CR #'s don't match reality, they still would be too high for a 203 cam.
Personally I don't like the 257 cam in 95" builds.
If it were at 10.5 CR I wouldn't even use a S&S 570. Again if it had that CR ( which it may not) it would be a good candidate for one of the Mike Roland cams, either a 2G or a 26G. If S&S a 585, but it would be more of a top end bike.
Possibly the reason no one responded is that we don't know what you have there.
Jamie:fijfi said:Where in WV are you? Seems like there should be a Dyno within a couple hours of you.
gen:genoway said:For SE Performance heads and HD Forged 1550 pistons, making 10.5 static CR, and no compression releases, look at the following:
Andrews TW55G, high lift .550
Andrews TW67G, high lift .570
Those heads should go up to .575 lift and those cams will take the compression.
Or, he can change the pistons to flat tops and broaden his choices to cams that close before 46 degrees and provide more low down torque for a bagger.
HD: I didn't think about looking in the carbureted section....('02 Ultra) but I do see the reference.HDWRENCH said:SE list the 203 and h/c pistons as a torque package and they list it in the SE catalog. as t/c 1550 stage III torque carburated.
Looking at the STAGE IV TORQUE-CARBURETED shows the #22868-00 forged h/c pistons (10.5:1) and performance heads that this Ultra actually has; but lists the SE-257 Cam. (vs.the SE-203)10.25:1 cast pistons designed for use with the Twin Cam engine equipped with stock cylinder heads and Big Bore cylinders (1550)
My 95 inch build used the big barrels, SE heads, 204 cams, and the forged pistions, yielding 10.5:1 comprression ratio. Cylinder cranking pressure was huge, i would peg a 250 psi compression gauge.WVRDKING said:What has me also concerned, from my reading and research here, is his compression ratio. He has the documentation from the upgrade which was all H-D and included the 95" Stage II Big Bore kit along with the standard (non htcc/ported) Screamin Eagle Heads. Of course cams are the 203s. What's strange to me is instead of using the included flat cast pistons pistons (10:1) the previous owner had the techs install the #22868-00 forged high comp pistons that yield per the SE Catalog 10.5:1 Compression Ratio. His SE heads are the earlier versions that didn't have provision for comp releases.