5 spd MPG?

[oline897]

Can 40-45 mpg be achieved with a 5spd in a LXI Accord sedan with the FI 2.0. I'm thinking about swaping out the auto, just want to make sure it's worth it. Thanks for any help!

[Tdurr]

i have no idea, but if everything was running like it was new, and you coasted a lot and shift at/before 3k then it prob can get at least 40.

[oline897]

I like having a 4 door but with gas prices today I might build a D15Z1 VX CRX if the Accord can't get 40mpg.

[russiankid]

That depends, is that what you want in the city or the highway? If the highway,then possibly it can be achieved, city...no way.

[bobafett]

i think you will have a lot easier time getting those mileage figures with a vx or hx civic/crx. :)

[itzdave]

and do some weight reduction too. id start by removing all the stuff in the trunk, then maybe even go for the p/s system. hell, some even remove the back seat. plus it helps a little for quicker acceleration.

[cubert]

id be amazed if you could get that kinda mileage out of an accord...

[oline897]

Thanks for the replys. I'll probably build a crx once I find a good shell.

[2drSE-i]

that didnt take very long...youve only been on the site for less than a month. Oh well, as queen says.....

[2oodoor]

...another one bites the dust hey hey


I get around 40 with my DX 5speed carbed (with a crazy choke cycle and fast idle ) I am sure it is not operating at top efficiency. So yeah I would say yes, you would get better MPG....My LX automatic gets 29 all the time no matter how I drive it but it has modifications.

[oline897]

I have the spare removed, back seat and everything in the trunk. If I can achieve 40mpg on highway mileage only, I will keep it. What have some of you spent on the parts for a 5spd conversion if you don't mind me asking. Would it be easier to find a complete car that is junk for all the parts? I'm not going to give up that quick I've only had 3 tanks of gas through it. What is the best trans to use for a FE swap and should any of the internal gears be swapped. Again thanks for any help!

[oline897]

I may have found a complete 89 LX w/ 5spd thats being parted out. What parts do I need from this car?

Found in the how to section. If anyone has anything to add about the info on the different gear ratios it would be a lot of help!

[oline897]

Is there any engine/trans swaps that would yeild better mileage than the FI 2.0 w/5spd. I wouldn't consider it unless it get better than 5 to 10 mpg improvement. The D15Z1 looks like it would be a little under powered, torque would be down 60 to 70 lbs.

[2oodoor]

you're getting kinda kwazy now....

anyways you should try driving what you have for a while, make sure your overdrive kicks in and stays after 60 mph, it is just like 5th gear. tune up the car, get good 4 wheel alignment, keep the tire pressure right.. you may be surprized what kind of hwy mileage you will get then.

[oline897]

I'm going to relpace the ingnition stuff this week and drive it a month and see what happens. I will be doing th 5spd swap for sure just trying to get the best final drive ratio for FE.

[oline897]

Through all the searching i have done, about two hours, it looks like the carbed 3rd gen has the best gearing for FE with a final drive of 3.866 and 5th gear ratio of .069. If this is not correct or if there is a better option out there could someone let me know. Thanks.

[Hauntd ca3]

would think with a g/box running a .69:1 fifth gear the economy wouldnt be that great.
alot of the time a shorter e,g .8:1 ratio would achieve better economy
i dont know what the diff and gear ratios are in the honda boxs so cant suggest which ones to use.
but i know that when i did the auto/manual swp in mine, the revs went up about 500 at 60 mph and the economy went up bout 5mpg
its not always better to run tall gaer ratios

[Dr_Snooz]

The single best way to improve your mpg is to sloooow doooown. You want 40 mpg? Drive 55.

[AZmike]

Yes, it can be achieved, but not on a regular basis. I've gotten 40-42 miles/gallon on a few tanks with both my sedan and my hatchback (both FI 5-speeds). They were usually highway miles at higher altitudes hauling at least 400 lb of people and stuff.

[MessyHonda]

get bigger tires...i ran 195-60-15

[Doward]

No idea what I'm getting. I'm running rich on the Weber 32/36, but I've gone 200 miles before hitting the half way point. I don't know about 40mpg - I'll be happy with 30-35mpg.

[Civic Accord Honda]

i get 20 in town and about 35 hwy but i have reached 40hwy once