12.0:1 piston

riot936 · 02-01-2012, 09:36 AM

I'm thinking about putting a 12.0:1 piston in my std bore ltz. My mods are in my sig. Along with that I'm considering getting a powebomb hedader to go with my fmf. Any worries or woes about a higher comp piston? I iknow I need to run 91 or better other than that idk. Thanks in advance.

biggiej42 · 02-01-2012, 10:17 AM

I'd run premium, but not race gas. You do know that you can just change the base gasket to a single layer, and it will change your compression to 12.2-1.

CFM-Z440 · 02-01-2012, 11:37 AM

More compression will be one of the few things that will make your engine run better everywhere. Like biggie said, I wouldn't buy a new piston if it's 12:1, when just going to the single layer base gasket with the stock piston (which you would do anyways with a new piston) will take you to 12.2:1. If you really want or need to change the piston, there are pistons out there that will be at 12.5:1 which is ok on premium pump gas.

riot936 · 02-01-2012, 03:21 PM

the single layer is a drz gasket correct? I didn't know that I think id rather go with that as my top end only has like 10 hours on it.

biggiej42 · 02-01-2012, 03:25 PM

The drz gasket is the single layer. You don't a piston to get there, unless you're really in need of a piston, use the stock, and drz gasket.

02-01-2012, 09:36 AM	#1 (permalink)
riot936 :::Mini LT80 Rider::: Join Date: Nov 2011 Location: shepherd/huntsvegas, tx Posts: 171	12.0:1 piston I'm thinking about putting a 12.0:1 piston in my std bore ltz. My mods are in my sig. Along with that I'm considering getting a powebomb hedader to go with my fmf. Any worries or woes about a higher comp piston? I iknow I need to run 91 or better other than that idk. Thanks in advance. __________________ 2008 z400 se Hardkore hubs, fmf, hotcams, dynojet, open box w/uni, tag bars,relocated dummies and key, renthal x ring, 13/40, razr rears, a/c wide, blingstar ultra light, alba plus 2 arms,blob delete, omf scoops,razr2. Coming soon,jm racing port-polish Wtb: header ex.capacity oil tank gforce hubs and beadlocks and 400ex ex.arms ex.swinger ex.hubs and anything else badass For sale: parts bike and hardkore hubs pm me for details

02-01-2012, 10:17 AM	#2 (permalink)
biggiej42 :::Official Spammer::: Join Date: Jun 2006 Posts: 3,356	I'd run premium, but not race gas. You do know that you can just change the base gasket to a single layer, and it will change your compression to 12.2-1. __________________ 05' Z434 12.5:1CP,Full Yosh TRC,FCR40,175/45,Rat Stack,Dyna Programmable,AMR Coil,KW Valvetrain,536/540 Web's,DID Tchain,PWR Radiator,Raptor petcock,Gunnar Kill,Elka S3 Front+Rear w/link,Roll+1 Stem,GPR Stabilizer,SL Hyd.Clutch,Tag T2,LSR+3 Arms,Burgard+1 Swinger,Quadtech Rad Shrouds,Supersprox 14/40t,UM Air Box,YFZ Calipers,SS Lines,PA Bumper,Asv's,Roll Nerfs/Heels/Pegs,LSR Axcalibar,Douglas G2 Beadlocks/Razr's,Hid,YFZTail,Pwrmadd's,TT Vapor+Dash,CV4's,RickyStator. July 2011 QOTM

02-01-2012, 11:37 AM	#3 (permalink)
CFM-Z440 Super Moderator Join Date: Sep 2006 Location: Southern Minnesota Posts: 6,432	More compression will be one of the few things that will make your engine run better everywhere. Like biggie said, I wouldn't buy a new piston if it's 12:1, when just going to the single layer base gasket with the stock piston (which you would do anyways with a new piston) will take you to 12.2:1. If you really want or need to change the piston, there are pistons out there that will be at 12.5:1 which is ok on premium pump gas. __________________ 03 LT-Z 470 Max Power 12.5:1 94mm Piston, Hot Rods +5 Stroker Crank, Web Cams 539 (+6) IN / 539 EX, with Hot Cams sprockets, Ferrea +1 Valves, LTZ/DRZ springs (IN)DRZ springs (EX), DRZ Manual Decomp. Ported head, FCR 41 with Noss adaptor, Home made intake, Modified HMF Full System, Home made header, Trailtech flywheel, Dyna Programable 54hp 36ft lbs

02-01-2012, 03:21 PM	#4 (permalink)
riot936 :::Mini LT80 Rider::: Join Date: Nov 2011 Location: shepherd/huntsvegas, tx Posts: 171	the single layer is a drz gasket correct? I didn't know that I think id rather go with that as my top end only has like 10 hours on it. __________________ 2008 z400 se Hardkore hubs, fmf, hotcams, dynojet, open box w/uni, tag bars,relocated dummies and key, renthal x ring, 13/40, razr rears, a/c wide, blingstar ultra light, alba plus 2 arms,blob delete, omf scoops,razr2. Coming soon,jm racing port-polish Wtb: header ex.capacity oil tank gforce hubs and beadlocks and 400ex ex.arms ex.swinger ex.hubs and anything else badass For sale: parts bike and hardkore hubs pm me for details

02-01-2012, 03:25 PM	#5 (permalink)
biggiej42 :::Official Spammer::: Join Date: Jun 2006 Posts: 3,356	The drz gasket is the single layer. You don't a piston to get there, unless you're really in need of a piston, use the stock, and drz gasket. __________________ 05' Z434 12.5:1CP,Full Yosh TRC,FCR40,175/45,Rat Stack,Dyna Programmable,AMR Coil,KW Valvetrain,536/540 Web's,DID Tchain,PWR Radiator,Raptor petcock,Gunnar Kill,Elka S3 Front+Rear w/link,Roll+1 Stem,GPR Stabilizer,SL Hyd.Clutch,Tag T2,LSR+3 Arms,Burgard+1 Swinger,Quadtech Rad Shrouds,Supersprox 14/40t,UM Air Box,YFZ Calipers,SS Lines,PA Bumper,Asv's,Roll Nerfs/Heels/Pegs,LSR Axcalibar,Douglas G2 Beadlocks/Razr's,Hid,YFZTail,Pwrmadd's,TT Vapor+Dash,CV4's,RickyStator. July 2011 QOTM

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