je piston and hotcams

Started by grap660, July 24, 2008, 03:49:09 PM

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grap660

okay im gonna buy a hot cams stage 1 and a je piston  660 CC's, 100 MM (standard bore), 12.:1 compression ratio and weight of 372 grams  but i have a couple of ?
1. well i be able to run on pump gas

2. well i need to do anything esle to the engine to install these items

3. well i need to rejet my 660 for these mods
2004 raptor 660 blue, alba racing pipe,pro flow kit,pro design foam filter,jetted,gytr skid plate,razr 2 on rear,monster stickers,

dads 2005 yfz 450 alba edtion,alba racing pipe,alba racing graphics,trinty intake,itp holeshots on rear,tag handle barz,jetted,cam mod

Krandall

You will need to rejet for sure.

And chances are.. You will have to run on at lesst 93 octane. possibly more.

the limit on these raptors is right around 11:1 unless you're in the mountains.


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kyledvor61

more than likely a 50/50  mix

ThisGuyAlex

i would not run a je piston if i were you......the small bore 12:1 pistons are prone to breaking at the wrist pin trashing the whole motor go on rf and search it you'll see.....go with an 11:1 wisecon instead pump gas will be ok and no common failures to worry about
sold the raptor....full on 05 yfz in progress...

stock parts: fuel tank, swingarm and rear shock

grap660

yea im not gonna get the je piston anymore im gonna go with wiesco but im thining of buying the 686 bore kit
2004 raptor 660 blue, alba racing pipe,pro flow kit,pro design foam filter,jetted,gytr skid plate,razr 2 on rear,monster stickers,

dads 2005 yfz 450 alba edtion,alba racing pipe,alba racing graphics,trinty intake,itp holeshots on rear,tag handle barz,jetted,cam mod

Krandall

Quote from: grap660 on July 26, 2008, 01:51:10 PM
yea im not gonna get the je piston anymore im gonna go with wiesco but im thining of buying the 686 bore kit


:rofl:

I'm just lauging in my head. nothing against you, but I think you'd win my "most indecisive" award   :clap:


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Yamaha Raptor Forum

PCIII Maps Here:
http://www.krandall.com

Cowards die many times before their deaths The valiant never taste of death but once

ThisGuyAlex

i would go 101 bore not 102....102 makes the sleeve really thin
sold the raptor....full on 05 yfz in progress...

stock parts: fuel tank, swingarm and rear shock

jwraptor


ThisGuyAlex

those kenz pistons are PIMP, but 2x the price of anything else.....but i would definately listen to jwraptor....he knows quite a bit about nasty engine builds
sold the raptor....full on 05 yfz in progress...

stock parts: fuel tank, swingarm and rear shock

StrkrMn

Quote from: grap660 on July 26, 2008, 01:51:10 PM
yea im not gonna get the je piston anymore im gonna go with wiesco but im thining of buying the 686 bore kit

Why not go w/ a 720 kit...?

:clap:

grap660

Quote from: StrkrMn on July 28, 2008, 02:44:01 PM
Quote from: grap660 on July 26, 2008, 01:51:10 PM
yea im not gonna get the je piston anymore im gonna go with wiesco but im thining of buying the 686 bore kit

Why not go w/ a 720 kit...?

:clap:

nop im getting the 686 at the end of augest i would buy it now but i need to buy new clothes and stuff for school cuz it starts in 2 week
2004 raptor 660 blue, alba racing pipe,pro flow kit,pro design foam filter,jetted,gytr skid plate,razr 2 on rear,monster stickers,

dads 2005 yfz 450 alba edtion,alba racing pipe,alba racing graphics,trinty intake,itp holeshots on rear,tag handle barz,jetted,cam mod

Kenneth

You may be able to get by with running 12:1 with 93 octane but I'd at least 50/50 it with higher octane.  The stage II works really well.. Considering they are the same price i'd get that one.

HC1or2 + JE piston = 300.00 Shipped


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kyledvor61

Quote from: Krandall on July 26, 2008, 11:55:19 PM
Quote from: grap660 on July 26, 2008, 01:51:10 PM
yea im not gonna get the je piston anymore im gonna go with wiesco but im thining of buying the 686 bore kit


:rofl:

I'm just lauging in my head. nothing against you, but I think you'd win my "most indecisive" award   :clap:

+1 make up your f*ckin mind about everything :lol:

grap660

Quote from: kyledvor61 on July 28, 2008, 10:20:33 PM
Quote from: Krandall on July 26, 2008, 11:55:19 PM
Quote from: grap660 on July 26, 2008, 01:51:10 PM
yea im not gonna get the je piston anymore im gonna go with wiesco but im thining of buying the 686 bore kit


:rofl:

I'm just lauging in my head. nothing against you, but I think you'd win my "most indecisive" award   :clap:

+1 make up your f*ckin mind about everything :lol:

i did made up my mind im getting the 686cc kit but not till late augest cuz need stuff for school and i have to fix my freaken handlebar probelm
2004 raptor 660 blue, alba racing pipe,pro flow kit,pro design foam filter,jetted,gytr skid plate,razr 2 on rear,monster stickers,

dads 2005 yfz 450 alba edtion,alba racing pipe,alba racing graphics,trinty intake,itp holeshots on rear,tag handle barz,jetted,cam mod