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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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 Posted: Mon Dec 20, 2004 12:00 am |
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Wiseco Forged, High Compression, 6cc dish! $400! 
Actual compression depends on which head & which gasket, used.
The FSM says to MARK, the cylinder number on each rod...FIRST!
We go one-step-further, MARK, the SET, and keep them TOGETHER!
(silver numbers)
they are WEIGHT-MATCHED
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Last edited by Professor Quest on Sat Feb 02, 2013 5:52 pm; edited 37 times in total |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Wed Dec 22, 2004 7:55 pm |
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In the piston catalogs it says:
"Hyper Us are NOT FOR Racing!"  (Keith Black Pistons)
Text changed from "not for turbo" to not for racing as the highlighted text in the picture states.- 84-87 EFI Turbo- "not for racing applications" (Admin)
Pick a brand-name and...READ IT!
Cast, OEM replacement pistons.
Stock piston (left) and "Top Line" PA C-23T (right)
Designated TURBO PISTON with thick wrist pins and rings.
About $185.
Stock piston on the left, and 3 FORGED WISECO pistons.
18cc & 6cc & flat tops.
Spec sheet refers to SECOND piston.
This spec refers to the THIRD piston.
Note different RING THICKNESS!
Thin rings are designed for RACE ENGINES.
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Last edited by Professor Quest on Sat Feb 02, 2013 2:34 pm; edited 19 times in total |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Wed Oct 25, 2006 12:50 am |
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JE PISTON$ 
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Last edited by Professor Quest on Sat Feb 02, 2013 2:35 pm; edited 10 times in total |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Mon Nov 27, 2006 8:53 pm |
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[size=18][b]"Top-Line" cast pistons...we can't seem to make them fail! 
RO$$ PISTONS BELOW.
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Last edited by Professor Quest on Sat Feb 02, 2013 2:36 pm; edited 4 times in total |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Sun Feb 18, 2007 2:21 pm |
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Buying USED pistons & "floated" rods from E-bay was a BAD IDEA!
These Ross pistons saw CRAP running past them and the wrist pins
are BEAT TO CRAP from DETONATION!
My customer could NOT get a refund.
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Last edited by Professor Quest on Sat Feb 02, 2013 2:37 pm; edited 6 times in total |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Mon Feb 19, 2007 9:58 am |
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How much money did you spend
to rebuild your engine?
Did you IGNORE the TPS & fuel injectors & fuel pump & filters?
Were you...DOING-DONUTS and starved the pistons
for engine oil?
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Last edited by Professor Quest on Sat Feb 02, 2013 2:39 pm; edited 4 times in total |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Tue Feb 20, 2007 10:35 am |
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Brand name unknown.....but are JUNK PISTONS!
Buying PRODUCTION REBUILT ENGINES....you're going to
get RIPPED OFF!
LOW-BIDDER PARTS IS HOW THEY MAKE MORE MONEY ON YOUUUUUUUUU!
Note the top rings are HAMMERD CLOSED! 
And the other two pistons.......
On the side of the block it said "PAP Albany Ga."
I gather that's who rebuilt this engine with NO BRAND NAMES ON THE PISTONS & BEARINGS
Anddddddd.....the MOST, SORRY-ASSED RE-BALANCE JOB
I HAVE EVER SEEN!! This crank was checked to see
how it balanced out. It was off by 7 GRAMS!
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Last edited by Professor Quest on Sat Jun 04, 2011 12:28 pm; edited 3 times in total |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Tue Feb 20, 2007 11:00 am |
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Piston & rod on the left, MASS PRODUCTION BY A ROOKIE!
On the right...PROPER FIT OF THE WRIST PIN...TIGHT but LOOSE!
Nice what you did to the rods!!
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Last edited by Professor Quest on Sat Jun 04, 2011 12:32 pm; edited 2 times in total |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Tue Feb 20, 2007 11:11 am |
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How do "I" know my rods will look like this? 
Removing the VARNISH from the pistons & wrist pins is a good practice.
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Last edited by Professor Quest on Sat Jun 04, 2011 12:34 pm; edited 1 time in total |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Tue Feb 20, 2007 11:19 am |
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I built my own wrist pin driving tools to salvage both the pistons & rods!
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Last edited by Professor Quest on Sat Jun 04, 2011 1:03 pm; edited 4 times in total |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Tue Feb 20, 2007 11:23 am |
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Why didn't I let the machine shop remove the pistons?
If you can't show me the RIGHT DRIVING TOOLS...
I'll make them myself.
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Last edited by Professor Quest on Sat Jun 04, 2011 1:18 pm; edited 3 times in total |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Tue Feb 20, 2007 11:32 am |
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88/89 pistons have better, lubed, wrist pins.
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Last edited by Professor Quest on Sat Jun 04, 2011 1:20 pm; edited 3 times in total |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Tue Feb 20, 2007 11:41 am |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Tue Feb 20, 2007 11:48 am |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Wed Feb 21, 2007 9:59 am |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Wed Feb 21, 2007 10:00 am |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Wed Feb 21, 2007 10:02 am |
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Last edited by Professor Quest on Wed Feb 21, 2007 10:32 am; edited 2 times in total |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Wed Feb 21, 2007 10:03 am |
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5.0 Ford HYPER PISTONS. One piston was BADLY OVER-HEATED!
It cracked the piston....and the CYLINDER!! No turbo & no N2O!
This happened from LACK OF OIL CHANGES & RUNNING TOO LOW ON OIL!
NEGLECT@ 217K miles! It also spun the rod bearing!
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Last edited by Professor Quest on Sat Jun 04, 2011 1:53 pm; edited 4 times in total |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Wed Feb 21, 2007 10:06 am |
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Yes, It was rebuilt with Hyper-U pistons...
but 40k miles later, those pistons FAILED! 
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Last edited by Professor Quest on Sat Jun 04, 2011 1:57 pm; edited 3 times in total |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Wed Feb 21, 2007 10:08 am |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Wed Feb 21, 2007 10:56 am |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Wed Feb 21, 2007 10:59 am |
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Hyper U pistons: "NOT INTENDED FOR RACING APPLICATIONS"
Read-up on SEVERAL brands! They *ALL* will say the same!
This is a set of HYPER PISTONS for a small block Chevy.
Why do they call them "CLAIMERS"?
It's a THROW-AWAY-GIVE AWAY ENGINE BUILD!!!
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Last edited by Professor Quest on Sat Jun 04, 2011 2:25 pm; edited 3 times in total |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Wed Feb 21, 2007 11:05 am |
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Factory piston specs are:
Outside diameter 91.1mm (3.587")
Ring groove width #1 & #2 rings 1.5mm (.059") oil ring 4.0mm (.157")
Side/Skirt Clearance (piston-to-cylinder) 0.03-0.05mm (.0012"-.002")
Measure the SKIRT CLEARANCE. If it exceeds .004 then the PISTON SKIRTS are worn down. The 2.6 BLOCK MATERIAL is tougher than most so often it DOES NOT NEED BORED OVER-SIZE!!
Over-bore guide:
0.25mm = (.010")
0.50mm = (.020")
0.75mm = (.030")
1.00mm = (.039")
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Last edited by Professor Quest on Sat Jun 04, 2011 1:58 pm; edited 4 times in total |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Wed Feb 21, 2007 12:00 pm |
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Last edited by Professor Quest on Sun May 29, 2011 2:11 pm; edited 1 time in total |
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Professor Quest
Joined: 09 Jul 2004
Posts: 5758
Location: Albuquerque, NM
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| Posted: Wed Feb 21, 2007 12:02 pm |
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STOP! And understand what happens to
a cylinder bore when *ANY* engine is NON-OPERATED, for extended-time
and lives-in a HIGH HUMIDITY area (like Fla.)
Was your engine NOT USED for
a extended time? Was it in a HUMID area?
SURFACE RUST ATTACKS (to the clinder wall) are
common enough!
If you failed to PRE-LUBE the walls...GOOD-BYE, PISTON LANDS!! 
The engine shall: SURFACE RUST THE BORES!
That is PURE-HELL to the PISTON LANDS & RINGS, once the engine
is RE-STARTED! (shatters lands & rings!)
Because the TURBO, 2.6L blocks are HIGH-NICKLE, the blocks
are SUPER-TUFF, so the cylinders don't often need bored or even HONED! 
We have NEVER-FOUND, a "EDGE" at the top of the bores...EVER!
(but RUST is pretty common )
What we know: Since we only work-on 2.6L, *TURBO* engines...you
should DO THE SAME! (replace ALL pistons & rings!)
You need REAL, TURBO, parts? WE GOT EM'!
All our cranks are, COMPUTER, ZERO-BALANCED
with CUTTING-EDGE equipment!
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Last edited by Professor Quest on Sun Jun 05, 2011 4:11 pm; edited 13 times in total |
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