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RE: [oletrucks] Mileage/Smog and oletrucks (and the future)

To: "'MarkNoakes@aol.com'" <MarkNoakes@aol.com>, oletrucks@autox.team.net
Subject: RE: [oletrucks] Mileage/Smog and oletrucks (and the future)
From: "Schorn, Tim" <SchornT@ci.fort-worth.tx.us>
Date: Fri, 26 Jan 2001 08:28:48 -0600
Mark and all,
   You're right about the new GM I-6, but while we're waiting on
availability not to mention performance parts (ie TURBOS), what would really
make that old truck dance is a Toyota Supra Twin-Turbo I-6 tuned to
around...say 600rwhp!!!!! Now keep an open mind about the Oriental thing
while you learn this is a truck motor they stole from US back in the 60's
updated to millenium technology!! You can always swap the valve cover to
carbon fibre if you don't like the logo!!  YEEEEEEEEEEHAWWWWWWWW!!!!!!

           Tim in Ft Worth

> -----Original Message-----
> From: MarkNoakes@aol.com [SMTP:MarkNoakes@aol.com]
> Sent: Friday, January 26, 2001 5:37 AM
> To:   oletrucks@autox.team.net
> Subject:      Re: [oletrucks] Mileage/Smog and oletrucks (and the future)
> 
> 1--The Corvette/Camaro/Firebird TPI L98 is a good engine for a truck.
> It's 
> designed more for low end torque, and they're pretty clean. . .I know
> someone 
> in GA that runs a street-prepared class race prepped vette w/o the
> catalytic 
> converters and it still passes the sniffer inspections.  I run mine in the
> 
> same street-prepared class but have a free flow cat installed.  TN doesn't
> 
> have sniffer inspections but I assume mine's even cleaner than the guy w/o
> 
> the cats.  Later EFI vettes, etc went to high rpm engines (LT1, LT4) and 
> moved the torque way up on the curve; I would assume that these wouldn't
> make 
> good truck engines.  Gas mileage depends as much on transmission and final
> 
> gearing, but my 86 vette as modified gets 27 mpg on the highway and does
> 0-60 
> in around 6 seconds.  At first I was afraid of the complexity of these 
> engines, but it has proved to be easy to work on.  Now if there were only
> a 
> good/cheap way to make it look retro. . .
> 
> 2--My wife drives a 97 Jeep Wrangler Sahara with the 4.0 L EFI in-line
> six, 
> and it meets all of the more recent cleaner burn standards.  It would be a
> 
> relatively easy swap as the physical size is pretty close to the 235, but
> I 
> have not been happy with the power, gas mileage, or reliability of this
> setup 
> (but then again, my daily driver is the race prepped vette in #1). . .but
> my 
> wife loves it so I'm stuck with it.
> 
> 3--Didn't I hear that Chevy was reintroducing an inline six?  It would be 
> clean to the latest standards as well.
> 
> Mark Noakes
> Knoxville, TN
> 58/56 Chevy Suburban 2wd 350 V8 3speed w/OD in progress
> 59 GMC Suburban V8/Hydramatic looking for a 1/2 ton NAPCO kit  and a V8, 
> destined for straight stock resto
> 
> 
> 
> In a message dated 1/25/01 6:01:45 PM, jforbes@primenet.com writes:
> 
> << > Date: Thu, 25 Jan 2001 08:48:33 -0600
> > From: bob_keeland@usgs.gov
> > Subject: Re: [oletrucks] Mileage/Smog and oletrucks (and the future)
> > 
> > Actually I think that Jim Forbes has done a very good job of tying the
> > previous thread (that was straying) back to oletrucks.  The motor I am
> > planning to put into my 51 is a mid 60s 283, obviously not an
> > environmentally friendly motor as it was produced before smog control.
> If
> > I want to put a more modern, less polluting, environmentally friendly
> motor
> > in my truck, what years should I look at for the donor vehicle?
> > 
> > BobK
> > 51 3600 5-window (project)
> > 98 RAM (hers)
> > 99 HD Sportster
> > Arnaudville, LA
> 
> Bob--
> 
> You can use whatever you can get ahold of.  If you
> want a nice performing engine, with some challenges
> to install (specifially the fuel system and the air
> intake, among others), try a Chevy Tuned Port 305 or
> 350 from a Camaro, Vette, or Firebird from about
> 1985 to the early 90s.  The truck and passenger car
> throttle body injected V-8s from the same era are
> also decent engines, just not as performace
> oriented...and probably a bit easier to install,
> because they don't have the air intake right where
> your cooling fan is.  The V-6 is also ok, if you get
> the big one...4.3 liter.  They have been using these
> in trucks for a long time, and I think most were
> made with throttle body injection, although the
> early ones had Quadrajets, which were computer
> controlled.  I have a TBI 4.3 that I'm planning to
> rebuild, although I don't have a home for it yet. 
> The 4.3 is 3/4 of a 350 V-8, very compact, although
> it probably has the same steering/exhaust clearance
> problem as putting a V-8 in an AD truck.  At 262
> cubes, it compares favorably with the big truck 261
> straight 6, and should be much easier to find.
> 
> You may also find a fuel injected straight 6 engine
> to use, although I think (not sure...) that Chevy
> went to the V-6 in trucks when they went to fuel
> injection...so I don't think there's a Chevy fuel
> injected straight 6 available.  F*rd and J**p used
> FI straight 6 engines for a long time, they may
> still be making them!
> 
> On any fuel injected swap, you'll need the computer,
> harness, and all the necessary sensors (some you can
> do without, but most are needed).  The fuel system
> has to be pressurized, the best way is with a custom
> tank with an intank pump, but you can use other
> methods also...mounting a F*rd type external pump on
> the frame will work if you keep the gas tank in the
> cab, so it gets good gravity feed to the pump.  If
> the pump runs out of fuel, even for a short time,
> and sucks air, the engine can die.  Another method
> to feed the pressure pump is to use a small
> reservoir that is fed by a normal low pressure
> pump.  Beware that the fuel injected engines use a
> bypass pressure regulator, and require a return
> line, and if you use a reservoir it also needs this
> return line running thru it.  Port fuel injection
> usually requires about 50 psi (although the
> regulator knocks it down to 30 to 40 psi), and
> throttle body injection requires around 15 psi. 
> You'll also want to have some understanding of how
> the fuel injection system works...there are some
> good books out there on doing EFI swaps.  There are
> also many companies that sell computer harnesses for
> engine swaps into older vehicles, so you don't need
> to be an electrical wizard, you just need to
> understand the basics.
> 
> Or, you can just build the 283 to be clean...put in
> a small (short duration) cam, make sure you have PCV
> working properly, and if you get it tuned real well
> and want to do some experimenting, you might
> consider putting a catalytic converter on it...but
> beware there is a fire danger, they can get very hot
> when the engine misfires or runs rich or excessively
> lean.  Might blow someone's mind to see almost no
> hc/co coming out the tailpipe of your 51...
> 
> Jim F
> 59s in AZ
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959

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