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What pistons do you run?
Posted: Sun Jul 03, 2011 1:01 pm
by vr4gone
I'm thinking about putting a set of these in while my engine it's out. What is everyone else running? Any good or bad experiences? Any suggestions?
http://cgi.ebay.com.au/ws/eBayISAPI.dll ... K:MEWAX:IT
Posted: Sun Jul 03, 2011 1:16 pm
by OLD FART
I have Wiseco stroker pistons in my JB and so far no problems
Posted: Sun Jul 03, 2011 1:46 pm
by Lunacy
+1 on the wisecos
Posted: Mon Jul 04, 2011 9:08 am
by avandull
I have been using the 85.5 Wisco pistons (0.5mm oversize) no problems. The Great buy guy is the cheapest I found on Ebay.
Posted: Mon Jul 04, 2011 12:35 pm
by WANTSOM
Mahle motorsport 8.5
Posted: Mon Jul 04, 2011 4:17 pm
by Mick
Aries are also very good.
Posted: Mon Jul 04, 2011 4:31 pm
by redzone
Arias are noisy when cold. I have a set of 85.5 Venolia's here for sale for $600 if anyones keen..
Posted: Mon Jul 04, 2011 4:34 pm
by Mick
thanks for shooting me down dave :)
now can you reply to my PM?
Posted: Mon Jul 04, 2011 4:44 pm
by redzone
I'm actually interested to know if yours are noisy when cold also?
I'm still trying to find someone who can do a box cheap enough mate, quotes so far are scary!
Posted: Mon Jul 04, 2011 6:23 pm
by Lummy
85.5mm Wiseco Stroker pistons, but they're pretty new, so I can't comment just yet.
I was running 86.5mm Ross Racing pistons previously which were very good.
Posted: Mon Jul 04, 2011 6:36 pm
by Mick
cool dave! appreciate it mate i know the prices can be far out...
back on topic i know two serious engine builders who use arias religously, havent heard about the cold noisy prob yet but these cars are probably too noisy at idle to notice :D
pistons
Posted: Mon Jul 04, 2011 6:57 pm
by davidbek95
What are they to suit the sohc or t/cam
regards david
Posted: Mon Jul 04, 2011 7:58 pm
by vr4gone
I haven't checked my bore size yet so I'll know if I need 85.5's or standard soon. I'm still gonna run SOHC however, I'm thinking about traveling the "Old school" road.
Short story: In the 80's rally drivers with Datto 1600's and to a lesser extent TRX Bluebirds, used to get the L20 series heads off LPG forklifts. These heads ran huge inlet valves.
At work we have a Samsung SF20L forklift that runs factory LPG. The engine is a 4G64. I imagine these heads also have huge inlet valves.
http://www.forkliftaction.com/marketpla ... lid=154721#
I was thinking about running one of these heads on my engine.
Posted: Mon Jul 04, 2011 8:32 pm
by John196701
Good to see you are staying true, SOHC, if you want to put some good values in the standard head, Datsun L20 manley SS swirl polished values fit, if you want i can try to find the part number, these valves are back cut lower than the standard valves, better flow at lower valve lift, the L300 4g64 head does have bigger valves, i think you can get much more out of the engine by just tiding up the original ports, port matching, radius all of the machine in the combustion chamber, to remove the sharp corners, there is more power to be made from the inlet manifold and the exhaust manifold.
Posted: Tue Jul 05, 2011 6:33 am
by jwebb2876
My turbo-built 4G54 apparently has 92mm 8.0:1 Wiseco forgies. Not sure whether to believe that though as it comp tests higher than a fresh standard Scorpion engine (which ran around 8.3:1). So I'm thinking it's got 8.5's.