View Full Version : 400ex piston kit choice je or wiseco
bradrychlik
10-16-2005, 01:16 PM
can someone please give me some advice on what to choose. 87mm, 88mm, or 89mm piston kit, je or wiseco
thanks
400ex28
10-16-2005, 01:21 PM
JE
jak1389
10-16-2005, 02:01 PM
get the je 87mm 10.8:1 comp piston. we good power. wiesco's compression ratios are not accurate when it comes to the 400ex.
bradrychlik
10-16-2005, 05:52 PM
what has more horsepower?
416 426 or 440 kit
what is the best compression to use?
03pissedoff426
10-16-2005, 06:13 PM
i like the 426 88mm im using the JE 13:1 piston and it was mean, before my last rebuild. now i need a new connecting rod.
stay with a lower comp. piston or you will be rebuilding your bottem end as i am
bradrychlik
10-16-2005, 06:33 PM
thanks for the advice
underpowered
10-17-2005, 06:20 AM
i think the 426 is the best bore for the 400ex. i have a JE 11:1 426. i would stick to about 11:1 comp., you can still run 93 pupm gas and run great.
IRONMIKE113
10-17-2005, 11:02 AM
so u would say the 426 is better out of the three that answers my question,do u anyone who sells a package deal with 426 kit .:D
426ex
10-17-2005, 11:10 AM
I'd definitely say the 426. Mine has a 10.5:1 comp and I haven't had a bit of trouble...my son though has a 12:1 in a 440 kit and the bottom end locked up this weekend. We'll be rebuilding this week looks like.
400exrider707
10-17-2005, 01:38 PM
I have a JE 416 10.8:1 piston for sale if anyone is interested.
ommkevin
10-17-2005, 02:43 PM
is it the quad or the motor
400exrider707
10-17-2005, 02:57 PM
Originally posted by ommkevin
is it the quad or the motor
???:confused: Im not sure what your asking here?
bradrychlik
10-17-2005, 11:48 PM
THANKS GUYS, I CHOOSE THE JE 416 KIT FROM C&D RACING, GREAT PRICE
03pissedoff426
10-18-2005, 03:13 AM
smart move, i hope you like it!!!
Powered by vBulletin® Version 4.2.1 Copyright © 2024 vBulletin Solutions, Inc. All rights reserved.