merry xmas everyone.
been emailing T-Man Performance regarding there street performer upgrade.
he told me that because iv done 38000ks is would be better to go with the S&S 88" motor with 4 5/8 stroke on my stock bores.
what do you think guys?
B
gday jacko, im no sloach in the engine department, i have built some nice v8s and rebuilt the odd old dirtbike. i havent touched a harley though and to be honest the whole process frightens me a little, altough if done during winter i could take my time.
I did see he menchions 4 5/8 88" stroke? how des this suit my standard bore 80"??
Well up to you m8, but I would keep stroke stock as strikers have a high piston speed & the stock evo barrel liner don't have that much meat . Also strokers vibrate a lot more. Piston skirt shorter so rock n roll. I ' seen some very quick 80 inch evoz but your bike so your call. Good luck
@ 38,000 klms the bottom end sould be still good unless you were slack on the oli change's + flogging her arse off, i change the oil in the tank tank every 2.500 & the filter every 4-5000 , just don't let the oil go black, it depends what year EVO 80 you have 1988 to 1992/3 have the weaker cases & could be a bit of a gamble on the fast hi comp list they can crack behind the front lifter block + the main case race can come loose in the case's , 1994 & up you would be O.K., if worried about crank do a run-out check on the pinion shaft + feel the big end with the top end + the alt rotor off & see what she feels like
+1 there. I would do some mild hop-ups to the current engine before dumping a chitload of cash on a larger engine. Being an EVO there are some tried and true setups that will give you some great performance. Such as:
If your super keen you can shave 50thou from the heads (or use thinner head and base gaskets) to give the compression a nice bump upwards
Cheers
Cheers for all this advice as well fellas, looking at going down this path in the new year.
i do have an aftermarket set of pipes although im not sure what they are, other than that im looking at a carby at present and air intake. im going to run the mobil oil as well, my girl got fairly hot on the weekend plus im 130kgs so it works hard " border="0" src="/DesktopModules/NTForums/themes/_default/emoticons/smile.gif" /> have a look at my pics and you will see the bike.