No, I want BIGGER rims, not smaller! But I could get some 13x10
positive offset gold wire wheels and some really small tires - cool!
But seriously, is that a YES to changing the rear end to give me a
better freeway speed driveability/mileage?
--- "Patrick P. Castronovo" <slick1@mohaveaz.com> wrote:
> before you go into the expense of changing your rear end, try
> dropping to a
> 13" tire, and you will see the difference using a higher geared
> rearend will
> feel like.(411) You will have a faster pickup, but your top end and
> your
> Gas Mileage will suffer. Pat
>
> -----Original Message-----
> From: Adam Bradley <ambradley@yahoo.com>
> To: datsun-roadsters@autox.team.net <datsun-roadsters@autox.team.net>
> Date: Wednesday, February 07, 2001 5:46 PM
> Subject: Rear End (was Re[2]: EFI / custom engine)
>
>
> >About the different rear end, I've got a '70 1600 with 195/60/14
> tires.
> > I plan to replace these with 195/50/15, which is actually a
> fraction
> >of an inch smaller in outer diameter than 195/60/14. It was
> suggested
> >to me that I might want to replace my 1600 rear end with a 2000 rear
> >end, as the lower tires turn my 3.90 into more like a 4.11, reducing
> my
> >top speed and increasing RPMs at a given speed. Any thoughts?
> >
> >Adam
> >1970 1600
> >1967 1600 (probably sold this Saturday)
> >
> >--- Fred_Katz@ci.sf.ca.us wrote:
> >> Pat,
> >>
> >> You just can't compare an Altima to the roadster. Apples vs.
> Oranges!
> >>
> >> My '66 2000 cruises between 4000 and 4500 rpm at highway speeds,
> and
> >> I'm
> >> getting about 26 mpg. I've got the 1600 rear end (3.90?). In city
> >> driving,
> >> stop and go, the mileage drops below 20 mpg, where the tach is
> often
> >> at
> >> 3000 (peppy!). Lower rpms do NOT guarantee consuming less
> gasoline.
> >> And I
> >> know quite a few of the other BADROC'rs are getting similar mpg,
> >> about 24
> >> to 28 mpg on the highway.
> >>
> >> Fred - So.SF
> >> BADROC
> >>
> >> ______________________________ Reply Separator
> >> _________________________________
> >> Subject: Re: EFI / custom engine
> >> Author: "Patrick P. Castronovo" <slick1@mohaveaz.com>
> >> Date: 2/7/2001 1:20 PM
> >>
> >>
> >> 3800 RPM on the Highway is consuming a lot of Gasoline. My '98
> >> Altima gets
> >> 27 on the highway and it is turning at 2200 RPM @ 60 mph. You
> must
> >> be at
> >> about 20 MPG. I know my roadster(67.5 2000 w/Solex) gives me 30
> MPG
> >> on the
> >> highway. I don't know the Ratio.
> >> Pat.
> >> -----Original Message-----
> >> From: Daniel Neuman <dneuman@quark.sfsu.edu>
> >> To: slick1@mohaveaz.com <slick1@mohaveaz.com>
> >> Cc: Erickson Philip <philip.erickson@Agouron.COM>; "ROADSTER
> >> (E-mail)"
> >> <datsun-roadsters@autox.team.net>
> >> Date: Wednesday, February 07, 2001 12:04 PM
> >> Subject: Re: EFI / custom engine
> >>
> >>
> >> >Hello,
> >> > I have the 4.11 LSD on my Solex U-20, I really don't think it
> makes
> >> >that much of a difference in around town gass mileage. On the
> >> freeway I am
> >> >turning maybe 3800rpm at the super fast CA freeway cruising
> speeds.
> >> > But I do think that it makes a difference in low rpm power. The
> >> >car really does feel more peppier.
> >> > Daniel 69 2000
> >> >
> >> >> I would think that using a 4.11, or 4.38 Rear End would be
> great
> >> for the
> >> >> track, but for the street application it would be revving high,
> >> and on
> >> the
> >> >> Highway it would reduce your top end and severely affect your
> Gas
> >> Mileage.
> >> >> But hey! I know all you roadster owners are Independently
> Wealthy,
> >> So
> >> what
> >> >> the hey! Go for it. Pat
> >> >> -----Original Message-----
> >> >> From: Erickson, Philip <philip.erickson@Agouron.COM>
> >> >> To: ROADSTER (E-mail) <datsun-roadsters@autox.team.net>
> >> >> Date: Wednesday, February 07, 2001 8:17 AM
> >> >> Subject: EFI / custom engine
> >> >>
> >> >>
> >> >> >Ronnie said "Looks to me like a blueprinted bottom end with a
> >> >> >mildly ported head with careful cam selection, around 9.5 or
> 10
> >> to 1 CR
> >> >> >and EFI, along with a 4.11 or 4.38 rear end would be a killer
> >> combination"
> >> >> >
> >> >> >my sentiments exactly , I guess I should have kept my fingers
> >> quit.
> >> <grin>
> >> >> >
> >> >> >Philip Erickson
> >> >> >San Diego Calif. 92121
> >Yahoo! Auctions - Buy the things you want at great prices.
> >http://auctions.yahoo.com/
Get personalized email addresses from Yahoo! Mail - only $35
a year! http://personal.mail.yahoo.com/
|