Trev,
If your engine is in good nick, don't be too worried about that cranking
compression particularly with a reasonable cam. You have plenty of valve
overlap so you compression will be lower than standard at cranking speed.
Cam
----- Original Message -----
From: "Pooley, Trevor" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, March 15, 2001 3:29 PM
Subject: RE: compression
> Pele, Terry, Bruce.
>
> Just to illustrate what Terry said I have a series 2 bluebird with a wade
76
> cam (quite a big cam). The engine is in OK STD condition but with the cam
my
> cranking compression ratio is only 110-115psi. My cam is advanced 8 deg.
> Terry does this sound reasonable for cranking psi given my setup.
>
> I really need to deck my head for some compression or get a peanut head on
> the car!
>
> Bruce you mentioned to me that Brad's car had to much compression and ran
on
> a bit. Do you know the cranking psi.
>
> Regards
> Trev
>
> -----Original Message-----
> From: Terry Rudd [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, 7 March 2001 21:30
> To: [EMAIL PROTECTED]
> Subject: RE: compression
>
>
> Pele,
>
> Most L series NA engines have 170-180 psi @ 350 rpm (crank with wot), the
> lower figure is for 8.5:1 engines, upper figure for 9.5:1 with factory CAM
> and factory specs for min CP is ~160 psi. Change to a wilder a camshaft
and
> all this goes out the window as the CP will decrease markedly at crank
rpm,
> usually somewhere between 10-15%.
>
> regards
> Terry
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of
> [EMAIL PROTECTED]
> Sent: Wednesday, 7 March 2001 7:19
> To: [EMAIL PROTECTED]
> Subject: Re: compression
>
>
> Gday
>
> Yeah im preety dumb but i new that, but im talking about figures, when
they
> do that guage thing and the bloke says 120 etc.. Whats the point(number)
> where
> the engine is rooted. Also has the list been working for everyone else, i
> got
> no meassages yesterday or today until about 1 hour ago then they all strt
> flooding through from the past 2 days.
>
> Pele.
>
> Andy Nielsen wrote:
>
> > Barbara,
> >
> > If the engine has just been reconditioned I would expect very good
> > compression in all cylinders. If the engine is in fair/good condition I
> > would expect good/fair compression in each cylinder. If the rings in a
> > cylinder are shot, I would expect crap compression in that cylinder. If
a
> > piston has a hole in it, you will have no compression in that cylinder.
> >
> > Hope this helps,
> > Andy.
> >
> > P.S. Sorry. I couldn't help myself.
> >
> > >From: [EMAIL PROTECTED]
> > >Reply-To: [EMAIL PROTECTED]
> > >To: [EMAIL PROTECTED]
> > >Subject: compression
> > >Date: Tue, 06 Mar 2001 14:46:34 +1100
> > >
> > >Gday
> > >
> > >What sort of compression should you get on each cylinder with an L
series
> > >engine?
> > >
> > >Pele.
> > >
> >
> >
_________________________________________________________________________
> > Get Your Private, Free E-mail from MSN Hotmail at
http://www.hotmail.com.
> >
>
>
>
>
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