v6 vs v8 slightly off topic was Re: [Diy_efi] engine convresion

[Jason M.]

Oddly enough my friend has since sold my old 87 and now has a 98 z28, "5" 
speed 3.73:1 posi.  It gets similiar mileage.  Think he usually sees 
33-34mpg highway.  2nd gear doesn't exsist in his transmission anymore, 
don't know if a shift fork broke or the gears just broke.

He has a LS6 engine with a new set of lingenfelter heads and an intake that 
still need to be put on.  He's planning to buy a new T-56 and put the LS6 in 
there.

The 4th gen f-body is heavier then the 3rd gen.  Couple of websites list the 
98 z28 as 3460lbs (correct, who knows?)  my '87 weighed 3010lbs with me in 
it, so 2830 lbs.  Was weighed when I went to buy metal for a body stand for 
one of my caprices.

Little bit of on topic, that caprice is a 1985, still working on it.  Hoping 
to finish the body work next summer, and the rear suspension.  It is now set 
up for a 425/472/500 cadillac and 700r4.  I have a '76 500 for it.  Will be 
carbureted at first but I plan to go with port injection.  Not sure about 
what ECU system I want to use yet.  megasquirt would be cheap.  Performance 
electronics is supposed to have a new ecu coming out next year that could 
run port injection and 4 dual terminal coil packs.  (they are 18 months 
behind the original release date).  Possibly use a GM unit.


----- Original Message ----- 
From: "Steven P. Donegan" <steve at donegan.org>
To: <diy_efi at diy-efi.org>
Sent: Sunday, November 19, 2006 9:47 PM
Subject: Re: [Diy_efi] engine convresion


> Almost sad when you think about it - my 1998 LS1 V8 gets 22 MPG around
> town and has seen 35 or so MPG on trips - likely about twice the HP of
> that 6 :-) Of course that car has a 6 speed manual tranny with 2
> overdrives (.85 and .5) and likely weighs a bit less than your 87.