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i to have 2.73 with a 14in rim and a 700r4. just starting to dive it
and getting about 13mpg around town. so thanks Brad for giving me a figure to
look for on the hiway.
----- Original Message ----- Randy 71
malibu
Sent: Tuesday, April 12, 2005 2:54
PM
Subject: RE: [Chevelle-list] 1966
CHEVELLE
Not that I'm
saying a 2.73 is optimal, but I have a 2.73 with a 700R4. The engine is
a 350 built relatively conservatively(Hydraulic lifters, cam has .45 lift with
216/216 duration, Performer Intake, World S/R heads) and does OK. I get
some bogging in the 1-2 shift, but even if the transmission shifts into lockup
OD at 30 mph (about 1500 rom) the car still runs fine. First gear is
pretty deep, so acceleration will be better with a 700R4 than a 350 in first
gear. Around town the car basically is a three speed, rarely seeing OD
and I get anywhere from 10-13 mpg doing 2 mile round-trips. Get out on
the open road and 20 mpg is not a problem. The best I did was a 150 mile
stretch of 24 mpg when I was just cruising at 65.
All that said, I
would recommend a 2004R because you don't have massive horsepower and you can
do the swap more easily. You can always do the rear gears in the
future. That was my plan 10 years ago and I still have not gone down
that road. One of these days I'll go for some low to mid 3's, but until
then I am fine.
Brad Waller ([EMAIL PROTECTED])
'66 Corvette | 327/dead | 4-speed | Wilwood Brakes | 245/45/16
BFG R1
'67 Chevelle | ex-SS396 | 355/700R4 | F-Body Brakes |
275/40/17 Kumho MX
In a message dated 4/11/2005 6:26:07 PM Eastern Daylight Time,
[EMAIL PROTECTED] writes:
i have a 66 chevelle that i had done from the ground
up now IM to the trans and i keep getting conflicting stories about what
the best trans to put in i have a 283 engine IM a girl so i don't
need the power it just a little something to get back and forth to the
store any way i have the power glide but i wanter to put a 700r4 in it but
then some one said a 400 then a 350 what would give me the best gas milage
it is an every day driver thanks
candy
The TH350 with a lockup converter is the best one to go with in this
situation. I would rule out a 700R4 and a 2004R only because it can
actually give you worse gas mileage depending on what gears are in the
rear. A 2.73 gear ratio and a 700R4/2004R don't mix very well.
You would not be in the optimum RPM range for the overdrive to function
properly unless you were doing 75 MPH.
Tom
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