CRX HF 65 MPG: Bogus?

I met a man driving the new civic gas-electric hybrid. He told me he owned a 4G CRX HF. He told me the hybrid only gets 55 mpg, but his old CRX HF got 65 mpg.
Could a CRX HF really get 65 MPG? I've seen the car. No passenger's door mirror, 13-inch steelies...and he was skinny.
Any possible way he could have gotten what he claims? Please, someone who has had one, call bullshit on this!
Flunky

wtf that dude must of been high and been talking shit

Yes.. in his dreams he could.

It could get 65mpg, but thats with starting the car leaving it in neutral and having someone in a truck pull it.
lol

i've always gotten over 30mpg with every honda engine i've owned.. d16z6, b18a1, and these were modded and i dont drive like a grandma.. If he were to lug it around, i belive it could be possible

I guess youre prolly right on that, my mom drives my civic dohc zc like a women and can get like 38mpg. I drive like a bat out of hell and sometimes get up to 25mpg.
hehe oh well, i also need a new fuel filter.

a very easy going driver on nothing but long distance drives, could maybe get that kinda number, id say 55mph tops without stopping.

believe it or not driving to SC in my crx i got just about 50mpg, DX 1.5L

that makes me think about modding a car for better MPG than for speed or handling

It could get 65mpg, but thats with starting the car leaving it in neutral and having someone in a truck pull it.
lol
LOL thats gotta be the funnyest thing i have seen on a thread. i smell bullshit. this guy has lied to you, as to many others...

I don't think this is bullshit at all.

I personally have gotten 40.34 MPG out of my DX sedan, with three people in it, loaded full of luggage for a vacation to go skiing. Oh, yeah, WITH a ski rack on top. Now granted, the car had 75K miles on it, and was only 4 years old at the time. I also took the time to have it aligned, balanced, and I change the oil every 5,000 miles with synthetic., so the car was about as efficient as it could get. I have been driving the car a little more aggressively in the last few years, and it is starting to burn a little oil now, but I still get low 30's (31-33 depending on if the oil compaines are fucking with the gas and oxygenating it in the winter) even now with 219K miles, and daily short-distance commuting.

No, you can't stomp on it up the hills, at every traffic light, or drive like you're playing NASCAR on the PS/2, and on the back sides of hills you pop it out of gear and coast...but I would say it is definitely possible..Remember, the HF only weighs 1800 lbs, my car weighs about 2260, and with the people and gear, I'd guess I added 400 lbs. A skinny dude commuting in an 1800 lbs. HF, definitely possible. Other factors, some mentioned above that can affect MPG:
I think the HF also had 165/13 tires, & all you dudes with fatty 205 or 215 width tires are laying about 45% more contact patch = more rolling resistance = more drag.
I think the HF only has one mirror (stock), which is like you sticking your arm out the window all the time. It isn't much, but think about on a long stretch of highway if we could fold in those mirrors knowing there was no one behind us..it makes a difference.
The tall gearing of the HF allows the car to cruise at 65MPH at about 1900 RPM. Since the motor is only pulling 1950 lbs. down the road, it doesn't need to spin at 3000+ RPM, therefore the engine is running nice and slow and efficient.

So I think it was definitely a possibility. Dude probably didn't get 65mpg ALL the time, but I am sure sometimes he did. Some tanks, I only get 28-29, if I use the A/C a lot, or I am hauling stuff - more recently I towed 1100lbs. worth of boat and gear 365 miles with 3 people in the car, and STILL got 27 MPG. My buddy drove his Suburban with an identical boat, and didn't see his fuel efficiency change at all..he still gets 12-13 mpg regardless :lol: - But I remember him spending about $35 at every gas station, and I spent about $13. I had a lot more leftover for beer money. :thumbsup:
All you haters can't underestimate the mighty D-series!!! :nono: :p :bigthumb: :rofl: :rofl: :grinno:
:2cents:

that makes me think about modding a car for better MPG than for speed or handling


you just might start the next craze ... and i might just jump on that band wagon.

I get 45-50MPG out of my 88 HF. I commuted from LA to Central CA every weekend and the gas was killing me.
I bought my REX and had to go through the tranny in the first week. Engine had about 200K and warped a head. I completely went through the stock engine and got all tuned nicely. It passed CA Smog with less than 12 H/C(122 H/C's alloed) and measured 0.00% Carbonmonoxide on the dynosmog.

Keep the car light and stay under 65mph then 50-55MPG is totally possible. The engine is low on H/P but has just about the same torque as a SI. Torque takes you off the line and keeps you running from stoplight to stoplight. But when I put the tranny in 5th gear on the freeway and the RPM are below 2K, I am cruising.

I know with a little tuning and refining, it is completely possible to get around 60MPG.
I did notice a big drop in MPG when I put in my 8pt full cage. I added over 150lbs of tubing and reinforcement plates to the interior. Now I am getting 42-48 MPG.

Just my $0.02

Brian

Could you put a HF final drive in a Si tranny. That would be a awsome race/highway setup.

you just might start the next craze ... and i might just jump on that band wagon.


hhaha, i'm serious, take a crx, tune it to be incredibly fuel efficent

Here are some >60mpg testimonials :) there are others... but you get the idea...

http://groups.google.com/groups?q=CRX+HF+MPG&hl=en&lr=&ie=UTF-8&oe=UTF-8&selm=1991Aug15.004257.29568%40risky.ecs.umass.edu&rnum=3

http://groups.google.com/groups?q=CRX+HF+MPG&start=20&hl=en&lr=&ie=UTF-8&oe=UTF-8&selm=4640001%40pollux.svale.hp.com&rnum=25

i also read some post by this lunatic on usenet awhile back...who had a CRX HF...however, he had performed some tweaks..and was making even more ridiculous claims about mileage...perhaps it was 80mpg or so...but he had changed the tires to something taller and perhaps even narrower(if possible?) to make the gearing even taller and reduce rolling resistance .. and he had a special driving technique ... from what he was saying, his modified HF and methods for driving definately made for a miser's dream come true... however, i dont remember the specific mods he did....

during the gas crisis there were lots of modders doing high fuel efficiency project cars based on air cooled vw's... there was even a kit to convert it to 2 cylinder....

so...some people like tweaking for mpg:)...
including honda crx (hf) engineers :)

hhaha, i'm serious, take a crx, tune it to be incredibly fuel efficent


so am i ... only i have a hatch but id be willing to try some stuff ...

well... u should be able to get a mileage increase just going to a taller tire... as it will make your gearing taller... slower acceleration but lower RPM for a given speed...

however... i dont know how much extra MPG you can expect squeeze out of a honda like ours... depending on what type of engine you have....

the reason why i say this is that there is a page that probably many of you have seen..describing the ZC/Si hybrid trans...and the guy in question ended up trying something like 3 different 5th gears...and he put some miser gear in for 5th... said the gap between 4th and 5th sucked...it dropped his RPMs way too much... and (here is the kicker)... his MPG didnt change worth shit....

u can always swap in a HF drive train :) he he ... it seems that honda had to make some pretty drastic changes in order to squeeze out that insane mpg figure... gearing... mpfi with a really crappy ass cam to match the gearing.. and a 8V head... and its probably tuned to run pretty lean...

if you drive in a conservative manner... somewhere in the neighborhood of ~35 mpg should be very easy on almost any of our cars...

does anyone really need much more so bad that its worth killing the performance of the car ?

oh well..anyways..enough speculation...the HF does prove however that if you do some somewhat drastic tweaks that insane MPG is very possible.....

by the way... if im not mistaken, the name sake of the Civic is the old no longer used CVCC engine design... aka "Compound Vortex Controlled Combustion"... aka charge stratification....
where the main intake valve would let in the regular fuel mixture...which was set up to be extremely lean... so lean that the car wouldnt run properly on it...but there was a significantly smaller valve located as such that a small portion of rich mixture could be placed near the spark plug.... giving an uneven distribution of atomized fuel ... allowing it to ignite the rich mixture around the spark plug and burn off the rest of the surrounding lean mixture... causing the car to run normally despite the otherwise too lean mixture... producing lower emissions and much higher gas mileage....

and by the way the late 70s early 80s CVCC engines managed to run very low emissions WITHOUT a catalytic converter... :) due to this clever design by Honda...

Some of the Honda engineers sure are geniuses...

I just got the honda crx hf and tracked a trip of 191 miles from wilmington nc to graham nc and put in 2.754 gallons which meant that i got about 68 mpg. granted i was driving 60-65. but on average if i go 70 then i only get the claimed 50 mpg

it's possible with a conservative driver


btw...last post was over 5 years ago

not bogus at all. neutral as often as possible, keep it at 2000 rpm, don't idle.

Dead thread

Aww man, I was all ready to blow this out of the water with epa mpg figures and ecomodder shtuff...


Oh btw, HAI from never never land! Been a long ass time.

Aww man, I was all ready to blow this out of the water with epa mpg figures and ecomodder shtuff...


Oh btw, HAI from never never land! Been a long ass time.
Have you actually registered on EM? I haven't seen your nick on there...

I'm the asshole trying to break 30 MPG in a Caravan lol. (Same SN there and here.)

All of my five CRX-HF's got 50 miles per gallon with good tires and a good tune free running breaks. One summer my 1989 HF got in the upper fifties average I think the oxygen sensor was reading wrong and giving me great gas mileage. If the car is in perfect condition the right good tires not new no drag or problems I believe with the right computer chip modes the Hf will get 65 Miles per gallon under perfect conditions. The car is the best gas mileage car ever made don't laugh at it love it we need Honda to build them again for us I would buy a new one in a heart beat I've driven my five close to 800,000 miles total combined miles. They are for real!! I have enough parts to keep mine going for a long time!!