What's the fastest I can modify my civic eg to go without hurting gas mileage?

Question

I love my 95 Honda civic eg because it's good on gas and I want to make it faster. I want to make it go as fast as it can without sacrificing my current gas mileage on my stock engine. Will upgrading to an integra type r engine, a B18, or K20 make it a gas guzzler? I once had a friend install a long cold air intake pipe and it sounded good but I didn't really notice any more HP and instead it was wasting gas almost like a V8! I was putting like 35 dollars in it every 3 days! So I had him remove it and luckily he still had my old parts and reinstalled them. Please my fellow experts with eg's, give me all the advice you got. I love this car and don't plan to ever part with it because it can be modified so many ways and it still looks different than most new cars I see on the road. My si eg is slammed with coil overs, JDM foglights, black vinyl interior, and mud flaps. I want to add a white face gauge and smaller thicker steering wheel. I still need wide profile wheels and tires as I still have stock tires too so it looks ok. But I want to go for aggressive. I want more speed because I'm always getting owned by other civics, Toyota corollas, tercels, minivans full of kids, the school bus, the city bus, everyone seems to be beating me and it's embarrassing. Help!

Answer 1

I have a 91 civic, when I first swapped it out with a GSR swap, I seen some times where I was still getting decent gas mileage and the times I was beating on it, the engine just swallowed gas and I used super. Now I have a fully built type R swap and I still get OK gas mileage even with a Walbro 255fp and 440cc injectors, it really depends on how you drive it. If you baby it then you will be OK but who the hell babies a civic with a swap. If your looking for just a little fun, I would just pipe out your single cam with an intake, headers, exhaust etc. and just chip out your ecu for better performance.

Answer 2

Park it on a hill and put a boat sail on it ;-) No such thing as making it faster without losing some gas mileage. Although on a Honda Civic how much gas can you use even if you did make if faster? You will still be better off than most people. Seriously though for an engine to produce more power you will always need more air such as a turbo charger to push more air into the engine but if you do that then you will also need more fuel otherwise the engine will run lean. If you put a chip in it will give it more fuel by changing the programming of the ECM to... among other things... increase fuel delivery by keeping the injectors open longer, so either way you are using more fuel.

Answer 3

well a true cold air intake will not hurt gas and it will gain gas mileage if you have a si then use some fuel system cleaner not the injector cleaner because that just targets injectors also change your fuel filter. Headers and exhaust wont hurt gas either but more of the lead foot you have more gas will go down but you have the si don't you? you have the D16z6 engine which is the vtec which is like 128 hp 106ft-lbs of torque so you should be able to beat those but the way that engine works is that it has 16 valves but only 12 work until you hit i think 4500rpms or so and then kicks to 16 and its a pretty good engine but intake headers and exhaust should do it you could also get a chip for your ecu which should be the p28 which could give you better gas and more power you could also do some head work like port and polish, also port match the intake to the head. also better wires and plugs will help too

Answer 4

There really aren't many things you can do without killing the fuel economy. K&N filters and aftermarket cold air intakes will always reduce fuel economy because none of them are as well designed as your stock cold air intake, which rebreathes heated air from around the exhaust during warm-up to reduce warm-up time (cold engines drink about twice the fuel of warm ones).



There are a couple of old-car issues you can check, though. If the EGR is hanging open a bt it will reduce your emissions nicely but will also reduce power. Normally that shows up as bad idle, though. And in the 1991 timing is adjustable... if the ignition timing is retarded by as little as one degree it will noticeably reduce fuel economy and power.



In terms of aftermarket add-ons, only a turbo will offer a real power increase without sending your day-in, day-out fuel usage through the roof. If you go that way, be sure to do a complete upgrade rather than just slapping a turbo on. There are a lot of things to consider, fewer if you go low-pressure.

Answer 5

Honda Eg Modified

Answer 6

Just remember that more power =more gas.

D little things like a good power tune up paying attention to plug wires & plugs. Buy a K&N air filter. Make sure the tires are at right pressure.

Answer 7

You could try a few small things like straight through exhaust, higher performance spark plugs blah blah blah..



but in my experience, more power.. more petrol.



unless you tune it up to the last. either way its still going to drink petrol.



Im not sure what american cars are like but im in ireland and i reckon you need a v-tec.



because you can drive on normal without drinking petrol but when you wanna kick it off a bit put the shoe down and v-tec will kick in ;)



http://juiceboxforyou.com/ something to give you some ideas from across the ocean! :)