Nat,
Take the rod length and divide by stroke, eg 133/86 = 1.54 It's not the
only thing which makes a revvy motor but it helps.
You could use Z20E pistons, which are the same height as the VG30 pistons
but with a 13cc dish to lower compression and 86mm bore to drop you back
under 2 litres: 1998cc and 9.3:1 with a 39cc head, could shave the deck
0.4mm to bring the pistons up to +0.15, that'd give you 9.6:1 which would
definately run on PULP. Could always weld the chambers up a bit too.
Maybe this is a bit better? These pistons are $215 rrp with chromoly rings
too, it'd be a pretty cost effective engine
- Tom
----- Original Message -----
From: "nat P." <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, May 31, 2001 12:36 AM
Subject: Re: 180hp L18 rally motor! Is it possible? Cheap!-TOM
> Morning Tom!
> I get it now, cheers for that, How do you work the
> rod/stroke ratio?
> Your combo sounds great, but I cant go over 2 litres
> cos it raises me a class which inturn puts me out of
> the running cos I cant afford the money the big boys
> play with,
> Do you reckon normal PLUP fuel will run 11.5comp. I've
> been told don't go above 10.5comp?
>
> Well being a rally motor I think it would produce good
> torque using those rods.
> Cheers MATE
> Nat
>
>
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