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SuziBlu
Joined: Mon Sep 14, 2009 11:30 pm Posts: 4268 Location: Eyre Peninsula
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 Posted: Fri Jul 05, 2013 2:03 pm |
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Anyone use them, reports good or bad, brands.
I want to raise my compression to around 11-1, there are a few ways, but high comp pistons would be the easiest, trouble is, the only ones I have found so far are pretty Exxy.
Set of quality con-rods, pistons n rings, bit over AUD 2,000, then still bearings etc.
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31zook
Joined: Tue Mar 24, 2009 10:30 pm Posts: 9242 Location: maito
Vehicle: <3 Edna <3
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 Posted: Fri Jul 05, 2013 2:24 pm |
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The high comp pistons I used were from LROR.
Mart used YZ125 pistons I believe
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SuziBlu
Joined: Mon Sep 14, 2009 11:30 pm Posts: 4268 Location: Eyre Peninsula
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 Posted: Fri Jul 05, 2013 2:30 pm |
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Are they ok ?
Did you get what was expected from them ?
Im doing up my donk, the cam and springs are sitting at home, the head is in Adelaide being ported n polished with oversized valves and a 3 angle valve job. Have to get the cam to him to get it all matched is all.
Has been told to me, by head man, that if I want to get this running as good as it can, up compression to the 11 to 11.5-1 mark
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sideways

az supporter
Joined: Fri Oct 29, 2010 1:53 pm Posts: 5936 Location: Northcliffe, W.A.
Vehicle: LJs, Sierra, Jimny, Swift.
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 Posted: Fri Jul 05, 2013 2:34 pm |
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SuziBlu
Joined: Mon Sep 14, 2009 11:30 pm Posts: 4268 Location: Eyre Peninsula
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 Posted: Fri Jul 05, 2013 2:36 pm |
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yes, looking for high comp pistons on LROR site, only has 1.3 ones, or so I can find.
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sideways

az supporter
Joined: Fri Oct 29, 2010 1:53 pm Posts: 5936 Location: Northcliffe, W.A.
Vehicle: LJs, Sierra, Jimny, Swift.
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 Posted: Fri Jul 05, 2013 2:41 pm |
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Yeah, Josh had a 1.3. I can't see any G16a high comp stuff either.
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Matthew
Joined: Mon Jun 15, 2009 11:30 pm Posts: 472 Location: S.E. Melbourne
Vehicle: SWB Sierra
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 Posted: Fri Jul 05, 2013 2:45 pm |
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How much compression could be gained by skimming the head, if any at all?
Have a look on redline, they should have a few threads about high comp pistons.
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Davidmacca
Joined: Thu Apr 26, 2012 5:38 pm Posts: 163
Vehicle: Suzuki
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 Posted: Fri Jul 05, 2013 2:46 pm |
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Off topic but how much roughly did it cost to get the head work done as I'm thinking of doing some head work to mine
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SuziBlu
Joined: Mon Sep 14, 2009 11:30 pm Posts: 4268 Location: Eyre Peninsula
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 Posted: Fri Jul 05, 2013 2:51 pm |
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Hant been done yet, have to get the cam to them, but a basic port and polish, reseat valves is around 400, a told the G series heads are a bad performer, and a port and polish really livens them up.
Mine all up will be over the grand mark id say.
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SuziBlu
Joined: Mon Sep 14, 2009 11:30 pm Posts: 4268 Location: Eyre Peninsula
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 Posted: Fri Jul 05, 2013 2:52 pm |
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Matthew wrote: How much compression could be gained by skimming the head, if any at all?
Have a look on redline, they should have a few threads about high comp pistons. My understanding is, very little, have been known to be wrong now and then but. This is why Im going down the high com piston road, would love to think its just a shave, wonderfully cheap by comparison.
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atari4x4

az supporter
Joined: Mon Dec 11, 2006 10:30 pm Posts: 34842 Location: East Radelayed
Vehicle: SV420+SV620 Vitara's
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 Posted: Fri Jul 05, 2013 2:54 pm |
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Send the whole lot to Tony at Knight Engines, for a complete build rather than get the head done at one spot & the bottom end at another.
The dude is a genius!!!
_________________ You're just hating because you don't understand
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SuziBlu
Joined: Mon Sep 14, 2009 11:30 pm Posts: 4268 Location: Eyre Peninsula
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 Posted: Fri Jul 05, 2013 3:11 pm |
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atari4x4

az supporter
Joined: Mon Dec 11, 2006 10:30 pm Posts: 34842 Location: East Radelayed
Vehicle: SV420+SV620 Vitara's
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 Posted: Fri Jul 05, 2013 3:13 pm |
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Will be money well spent, I can guarantee you that.
_________________ You're just hating because you don't understand
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SuziBlu
Joined: Mon Sep 14, 2009 11:30 pm Posts: 4268 Location: Eyre Peninsula
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 Posted: Fri Jul 05, 2013 3:21 pm |
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costing a bucket load now, in for a penny in for a pound.
May take the car over and have someone fit the big carbs as well.
Thatd be reeeeel nice, should make lots of brooom then.
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royce

omnipotent being
Joined: Sun Jun 11, 2006 11:30 pm Posts: 17216 Location: Pluto
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 Posted: Fri Jul 05, 2013 3:35 pm |
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Honda guys use G16 pistons to lower compression in their Turbo Vtec Yo! things, perhaps some kind of Honda piston will work?
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tassie jeeper
Joined: Fri Jun 14, 2013 9:39 pm Posts: 246
Vehicle: 1995 2.0V6 Vitara LWB
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 Posted: Fri Jul 05, 2013 3:36 pm |
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wonder if 4x's FCR40's would make a big difference?
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sideways

az supporter
Joined: Fri Oct 29, 2010 1:53 pm Posts: 5936 Location: Northcliffe, W.A.
Vehicle: LJs, Sierra, Jimny, Swift.
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 Posted: Fri Jul 05, 2013 3:39 pm |
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Tony will sort you out!
If you're going to invest that much in it it'd be worth getting Tony a G16b or G13b (as well as your G16a) head to compare which has the most potential. I'm sure you could pick up a cracked G16b head for next to nothing. Just to compare G16a and G16b would be very interesting and could pick you up a number of ponies. But who knows, you could find the G16a head has more power potential.
Last edited by sideways on Fri Jul 05, 2013 4:00 pm, edited 1 time in total.
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atari4x4

az supporter
Joined: Mon Dec 11, 2006 10:30 pm Posts: 34842 Location: East Radelayed
Vehicle: SV420+SV620 Vitara's
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 Posted: Fri Jul 05, 2013 3:55 pm |
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tassie jeeper wrote: wonder if 4x's FCR40's would make a big difference? I'd just use the twin 40mm DCOE's he's got for it!! Tony won't be cheap but will be money well spent. Will be interesting to see what he does to the top end. I'm assuming you're having the bottom end fully build seeing you're looking at pistons?
_________________ You're just hating because you don't understand
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shep
Joined: Thu Mar 29, 2007 11:30 pm Posts: 14498 Location: Here there everywhere
Vehicle: A manly awesome man jimny
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 Posted: Fri Jul 05, 2013 4:17 pm |
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_________________ JEEPJEEPJEEPJEEPJEEPJEEPJEEPJEEPJEEP
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31zook
Joined: Tue Mar 24, 2009 10:30 pm Posts: 9242 Location: maito
Vehicle: <3 Edna <3
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 Posted: Fri Jul 05, 2013 4:41 pm |
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Ahh, sorry I'm a noob.
I had my entire head rebuilt (down to replacing the rocker rods) and it cost $380
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SuziBlu
Joined: Mon Sep 14, 2009 11:30 pm Posts: 4268 Location: Eyre Peninsula
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 Posted: Fri Jul 05, 2013 4:46 pm |
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atari4x4 wrote: I'm assuming you're having the bottom end fully build seeing you're looking at pistons? Be a waste of money if I didnt hey, all it would be is a hand grenade. I want to not only get there, but most importantly, get back.
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atari4x4

az supporter
Joined: Mon Dec 11, 2006 10:30 pm Posts: 34842 Location: East Radelayed
Vehicle: SV420+SV620 Vitara's
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 Posted: Fri Jul 05, 2013 4:53 pm |
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sideways

az supporter
Joined: Fri Oct 29, 2010 1:53 pm Posts: 5936 Location: Northcliffe, W.A.
Vehicle: LJs, Sierra, Jimny, Swift.
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 Posted: Fri Jul 05, 2013 5:31 pm |
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atari4x4

az supporter
Joined: Mon Dec 11, 2006 10:30 pm Posts: 34842 Location: East Radelayed
Vehicle: SV420+SV620 Vitara's
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 Posted: Sat Jul 06, 2013 2:13 am |
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shep wrote: just had a read of that thread, some great info in there. 
_________________ You're just hating because you don't understand
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atari4x4

az supporter
Joined: Mon Dec 11, 2006 10:30 pm Posts: 34842 Location: East Radelayed
Vehicle: SV420+SV620 Vitara's
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 Posted: Thu Jul 11, 2013 12:19 am |
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sideways wrote: hahaha that's crazy, hows the dedication to the cause! this is very similar to the one he screwed together for my mate years ago, L24 monster in a datto 1600 with twin webers, though this one is fuel infected. http://performanceforums.com/forums/sho ... 56k-LOL%29
_________________ You're just hating because you don't understand
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