I can highly recommend APEP I had a set of custom forgies made for my CA18det
still going strong two years later :) running upto 25psi :) cost around $1100
with total seal rings I just sent a stock piston to them they machined the same
+ 40 thou. Top quality and resonable price was quoted upto $1500
Good luck Andrew
Brad HALLETT wrote:
> Contact APEP and have a yarn to them. They will do custom jobs if they know
> the application
>
> Regards
> Brad HALLETT
> http://www.powerup.com.au/~bhallett
>
> http://www.datrats.com.au for all Datsun performance equipment!
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Daniel Kroehn
> Sent: Saturday, 17 March 2001 11:06
> To: [EMAIL PROTECTED]
> Subject: Re: Z18/Z20, Forged pistons
>
> Well, I think I'm going for a reasonably serious turbo engine setup with the
> ability to rev to at least 7 grand, so I'd rather be on the safe side than
> have to rebuild an engine. What brands of cast pistons do you recommend?
>
> Daniel Kroehn
> Recommending Datrats, supplying quality Datsun performance parts
> www.Datrats.com.au
>
> ----- Original Message -----
> From: Brad HALLETT <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Saturday, March 17, 2001 4:07 AM
> Subject: RE: Z18/Z20, Forged pistons
>
> > Don't get me wrong, some street and light motorsport applications will be
> > best suited by hypereutectic due to their lower friction, just don't
> expect
> > too much in revs/compression
> >
> > Regards
> > Brad HALLETT
> > http://www.powerup.com.au/~bhallett
> >
> > http://www.datrats.com.au for all Datsun performance equipment!
> >
> >
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED]]On Behalf Of Daniel Kroehn
> > Sent: Friday, 16 March 2001 3:00
> > To: [EMAIL PROTECTED]
> > Subject: Re: Z18/Z20, Forged pistons
> >
> >
> > Thanks for setting me straight Brad, me thinks I have to rethink what
> > pistons to buy!
> >
> > Daniel Kroehn
> > Recommending Datrats, supplying quality Datsun performance parts
> > www.Datrats.com.au
> >
> > ----- Original Message -----
> > From: Brad HALLETT <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Friday, March 16, 2001 2:06 AM
> > Subject: RE: Z18/Z20, Forged pistons
> >
> >
> > > Daniel
> > > Th hypereutectic pistons gets its name from the higher levels of silicon
> > in
> > > the alloy. This level of silicon actually makes the piston weaker than
> > cast
> > > in high po applications. The only benefit of them is having less wear
> > > characteristics i.e. less friction.
> > >
> > >
> > > Regards
> > > Brad HALLETT
> > > http://www.powerup.com.au/~bhallett
> > >
> > > http://www.datrats.com.au for all Datsun performance equipment!
> > >
> > >
> > > -----Original Message-----
> > > From: [EMAIL PROTECTED]
> > > [mailto:[EMAIL PROTECTED]]On Behalf Of Daniel Kroehn
> > > Sent: Thursday, 15 March 2001 2:32
> > > To: [EMAIL PROTECTED]
> > > Subject: Re: Z18/Z20, Forged pistons
> > >
> > >
> > > Tom,
> > >
> > > since you are turboing your engine just putting a little more boost
> > through
> > > the sucker will probably have the same effect as the extra little bit of
> > > displacement. Check with some performance shops about the pistons. I
> > know
> > > for about 350 - 400 bucks you can get yourself a nice set of high
> silicon
> > > content pressure cast pistons that will be a lot stronger than normal
> cast
> > > pistons. From memory they are called Hypueretectic (something like
> that)
> > > pistons. Could you put some shorter rods in it instead of the Z20E
> ones?I
> > > know my old rally engine has toyota 18R rods and some breed of flat
> tops,
> > a
> > > standard l20 crank (I think) and a little boring to give just over 2.2.
> > > Might pay to look for a rod catalogue and find something to meet your
> > needs.
> > > Just some food for thought anyway.
> > >
> > > Daniel Kroehn
> > > Recommending Datrats, supplying quality datsun performance parts
> > > www.Datrats.com.au
> > >
> > > ----- Original Message -----
> > > From: Tom Richardson <[EMAIL PROTECTED]>
> > > To: <[EMAIL PROTECTED]>
> > > Sent: Thursday, March 15, 2001 11:23 AM
> > > Subject: RE: Z18/Z20, Forged pistons
> > >
> > >
> > > > Thanks for the replies Brad, Daniel, Mark
> > > >
> > > > The reason I'm asking about forged pistons is not because I am keen to
> > > blow
> > > > $1400+ or think I'm going to be running 25psi of boost on the street,
> > it's
> > > > because if I were to pursue a Z22 stroker with the long Z20E rods (to
> > > > reclaim some revs) there is no piston available which produces the
> right
> > > > compression ratio with the NAPS/Z cylinder head (or even one which
> > > produces
> > > > a realistic N/A compression ratio). I need something with a 28mm
> height
> > > and
> > > > 15cc dish. What other options are there besides custom forged
> pistons?
> > > Does
> > > > anybody know of an OEM cast piston with a 28mm height and 15cc dish?
> > > 2187cc
> > > > turbo would have been sweet but I'll stick with a set of 31.6mm ACL
> cast
> > > > pistons with chromoly rings for $215 and 1998cc if the only other
> choice
> > > is
> > > > exy custom pistons.
> > > >
> > > > Thanks again guys
> > > >
> > > > - Tom
> > > >
> > > >
> > > >
> > > > -----Original Message-----
> > > > From: [EMAIL PROTECTED]
> > > > [mailto:[EMAIL PROTECTED]]On Behalf Of Brad HALLETT
> > > > Sent: Thursday, 15 March 2001 2:35 AM
> > > > To: [EMAIL PROTECTED]
> > > > Subject: RE: Z18/Z20, Forged pistons
> > > >
> > > >
> > > > Precision do 'em (http://apep.alphalink.com.au/), excellent piston at
> > the
> > > > right price. I would order them through Datrats though to ensure you
> > get
> > > > the best $$$.
> > > >
> > > > Many people disagree with forged pistons, and it basically falls back
> > onto
> > > > what you expect from your motor. If you want twin turbos but only
> > around
> > > > the street at low to mid psi then maybe you will survive with cast
> > slugs.
> > > > If you want a reliable 6500rpm-9500rpm high comp performer then go to
> > the
> > > > expense of forgies. Don't spend a mint on an engine and have a piston
> > > self
> > > > destruct at the worst moment.
> > > >
> > > >
> > > >
> > > > Regards
> > > > Brad HALLETT
> > > > http://www.powerup.com.au/~bhallett
> > > >
> > > > http://www.datrats.com.au for all Datsun performance equipment!
> > > >
> > > >
> > > > -----Original Message-----
> > > > From: [EMAIL PROTECTED]
> > > > [mailto:[EMAIL PROTECTED]]On Behalf Of mark
> krawczuk
> > > > Sent: Wednesday, 14 March 2001 11:40
> > > > To: [EMAIL PROTECTED]
> > > > Subject: Re: Z18/Z20, Forged pistons
> > > >
> > > >
> > > > Hello Tom
> > > >
> > > > >
> > > > > What I wanted to know was, has anybody had custom forged pistons
> made
> > to
> > > > > order? Where from, and how expensive were they? Alternatively, does
> > > > > anybody know of an OEM piston of this size (87mm bore) with 21mm
> > > > > wristpins?
> > > >
> > > >
> > > >
> > > > hi, i got a price on +1mm forged pistons for a l20b motor , and th e
> > guy
> > > > quoted me $1400, yeah right, the guy seemed a wanker,saying that
> forged
> > > > pistons are the only way to go, ESPECIALLY for a turbo.
> > > > i spoke to a guy in queensland who ONLY DOES TURBO STUFF and when i
> > > asked
> > > > him about using forged pistons, he said f**K that, he has never used
> > > forged
> > > > pistons, and at the moment he said he was doing a v8 ford with twin
> > turbos
> > > > using CAST pistons.....
> > > >
> > > >
> > > > my setup is : z2.4 crank, l20b block,z24 head,microtech digi 1,to3
> > > turbo,
> > > > and programmable ignition and CAST pistons ,which i am definately
> using.
> > > >
> > > > he said the that u have to be very carefull about leaning out the
> fuel
> > > mix,
> > > > (as with any car) if its too lean it will damage the pisons , and a
> > > > forged set will last about 7 seconds longer than cast if the motor is
> > > > leaned out.
> > > > >
> > > >
> > > >
> > > > mark
> > > >
> > > >
> > > >
> > >
> > >
> >
> >
>
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