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Donjuan400ex
11-11-2009, 08:51 PM
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=300365435622&ssPageName=STRK:MEWAX:IT

What do you all think of this combo?? the only other costs would be engine machin work!! or am i wrong?

rocky_mtn_honda
11-11-2009, 08:53 PM
says listing has been removed or is invalid...

Donjuan400ex
11-11-2009, 08:55 PM
fixed sorry!!

rocky_mtn_honda
11-11-2009, 09:00 PM
i would think you could get better pricing shopping around individually...heck i bet you could get the piston for under $100 if you looked around, the cam chain is only $35 from servicehonda.com...the head and base gaskets for like $30 for both...im not too sure on that cam though, i dont know anything about em'

Donjuan400ex
11-12-2009, 08:30 AM
yea i figured its gettin close to christmas time and ive done pretty much everything to the ex except break into the engine!! and i have been runnin at the dunes alot lately and just need more power!! so i figure start with a 416 and it gives me more power for now and room to go bigger!!

would i be okay on my build if i went with 416 wiesco piston 11.1 comp on pump gas with a +6 key??
I have a spal fan installed already and i want to keep my reliability!!

400exfirebrethr
11-12-2009, 06:46 PM
you would have to run high 90's octane for the 11 to 1 and 6+ key , but i run 93 on just the 11 to 1 with no problems

honda400ex2003
11-12-2009, 06:49 PM
I would check on the magnum cam also, it may require the use of hard faced rockers. I am not sure on it though. steve

Donjuan400ex
11-12-2009, 07:53 PM
thanks for the info!! would i be okay if i used 50/50 E85 and 91 pump gas?? and just jetted it a little bigger??

honda400ex2003
11-12-2009, 08:14 PM
you should be fine with a mix of it. you could run it straight too if you jet it right. Check out some of the threads on it from wheelie or trxracer1.
This is what trx had to give you an idea of what he was running with 85 compared to regular.
10:1 Wiseco 416cc, Stage 1 Hotcams, Stock headpipe with header mod, PC T4 slip-on,
Moose uni-style filter, air box lid on, Keihin jets in a STOCK carb. Riding elevation varies from 600-1000ft.

On gasoline:

Winter 0-40 degrees

155 main

Dynojet needle 4th clip from top

40 pilot

3.5 turns out on the mix screw

On gasoline:

Summer 50-90 degrees

152 main

Dynojet needle 3rd clip from top

38 pilot

3.5 turns out on the mix screw

On E85:

Winter 0-40 degrees

185 main

Dynojet needle 5th clip from the top

52 pilot

1-3/4 turns out on the mix screw


__________________

steve

honda400ex2003
11-12-2009, 08:25 PM
ok, found some info on the magnum. It does not need hard faced rockers but does recommend hd valve springs and shortened valve guides. here is a link to the one i found. steve

http://www.dirt-deals.com/Magnum-Performance-Cam-TRX400EX-_p_326.html