Brad,
I always use stock rods as they give best bang for your buck.
The preparation process in order is :- check centre to centre lengths and
get a matched set down to + - 0.001". You will be surprised at the
variation in standard production lengths. The rods are then X- rayed to
check for cracks or casting bubbles.
Select the best set of rods then de-dag them, lighten the big end area and
reshape the beams. Increase the side clearances by linishing. This allows
better oil flow through the shell carrying away heat.
I always fit Chev rod bolts if the engine is to run near 8000 rpm or over.
The rods are then aligned to ensure the gudgeon pin and big end are
parallel. The big end cap surfaces are then ground and the rod shell
surfaces are resized. Balancing to 0.5 grams of the big end and gudgeon end
is next. The rods are then shot peened.
On building the engine I always do the crush on the bearing shells to
0.0035" to ensure good contact between the shell and the rod to carry away
heat efficiently.If using forged pistons, I fit bronze bushes in the
gudgeon rod end to allow the gudgeon pin to be fully floating. Teflon
buttons prevent pin side movement.
I know this is a lot of preparation work and it costs, (typically $800/set
of rods) but you can be confident the rods will hack anything you throw at
them up to 8500 rpm. If anything lets go it will usually be the crank
breaking on no 5 journal or a piston eating a lazy valve.
Cheers
Feral Errol
----------
> From: Brad HALLETT <[EMAIL PROTECTED]>
> To: [EMAIL PROTECTED]
> Subject: Re: Radiators
> Date: Thursday, April 20, 2000 1:57
>
> True Errol but it sounds flash when you say "I have titanium rods"
>
> I have always used stock 1600 rods in circuit cars and never had a
problem,
> the only prep being polishing and shot peening. What have you used?
>
> Brad HALLETT
> Ipswich, Qld
> ----- Original Message -----
> From: "Errol Smith" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Thursday, April 20, 2000 7:16 AM
> Subject: Re: Radiators
>
>
> > The only problem is that titanium has a very limited life in a circuit
> type
> > engine. It is good in compression (ie when being used in a drag car
with
> > continuous load applied), but not good in a situation where its loading
is
> > compressive then tensile back to compressive etc as in a circuit car.
> > Alternating load types cause it to work harden and after a limited time
> > cracks develop. This is also true for titanium in valves etc which is
why
> > the group A teams change valves every race meeting or two depending on
> > budget
> > Cheers
> > Feral Errol
> >
> >
> > ----------
> > From: Brad HALLETT <[EMAIL PROTECTED]>
> > To: [EMAIL PROTECTED]
> > Subject: Re: Radiators
> > Date: Thursday, April 20, 2000 12:40
> >
> > RE: ClutchI would love to get my hands on the rods and crank
> >
> > yeehaa!
> > Brad HALLETT
> > Ipswich, Qld
> > ----- Original Message -----
> > From: Jim Jones
> > To: [EMAIL PROTECTED]
> > Sent: Wednesday, April 19, 2000 12:15 PM
> > Subject: RE: Radiators
> >
> >
> > The reason for my asking is that I managed to get a hold of the Nismo
> > built version ( Bathurst Bluebirds) complete with titanium rods and
crank,
> > sand bent extractors( which I have since tossed as the placement of the
> > turbo with the external wastegate was a shocker) etc about 5 years ago
and
> > the car has never really been on the road since. However the ball and
> > chain has since changed her mind and would rather it go than gather
dust.
> > So she should be ready in the next few months
> >
> > Has anyone wound one of these up. I would be interested in knowing
what
> > kind of power figures have been achieved to date with various
> combinations.
> > The figures that they were quoting at while at Bathurst were a little
far
> > fetched however I believe at times they did run 36PSI .
> >
> > Jim
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED]]On Behalf Of Chris (CP)
> > Sent: Wednesday, 19 April 2000 23:04
> > To: [EMAIL PROTECTED]
> > Subject: RE: Radiators
> >
> >
> > yes i've seen a few
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED]]On Behalf Of Jim Jones
> > Sent: Wednesday, April 19, 2000 9:12 AM
> > To: [EMAIL PROTECTED]
> > Subject: RE: Radiators
> >
> >
> > Chris
> >
> > Do you know of many Z18T's that have had extensive mods
undertaken.
> >
> > Jim
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED]]On Behalf Of Chris (CP)
> > Sent: Wednesday, 19 April 2000 10:58
> > To: [EMAIL PROTECTED]
> > Subject: Radiators
> >
> >
> > Bought an N14 pulsar radiator for my z18t. The bottom pipe is
on
> > the wrong side but it fits (JUST). It had twin
> > thermos so i couldn't resist. anyone else tried these. Tanks
are
> > on top and bottom not like n13 left and right
> >
> >
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