hello,

i have an automatic 1.8l 83 prelude that i use as my daily driver. its carborated and im looking for ways to increase my gas milage.

right now im geting about 16-17 Mpg, i was looking for something more around 25-28 city and 30-32 on the highway. i know otheres with simalar cars and they get about that kind of milage... do you think that is possible with this car? i know the carborators need rebuilt. the car dosent like to idle when its cold. but the car is in decent shape. once it gets warm it runs great.

with a rebuilt carborator should i be able to get that good of gasmilage?

im also looking into options of making this car fuel injected using a Mega Squirt. (some of you may not be famialar with that but i already have one on my bimmer).... does anyone know if there is a fuel injected intake manifold that will fit this head that
is on this motor? it would make things real easy if i could find an intake manifold with injectors, a fuel rail, and throttle body with TPS from a later model prelude or other honda. then i can just throw in a pump, upgrade the fuel line, add some temp sencors, weld in an 02 sencor and make it work.

has anyone else done this carb to fi swap? or would i be better off just rebuilding the carborators?


also, can anyone point me in the direction of some scematics of the carborators on how to rebuild them? iv tryed seraching but theres way to much clutter of honda stuff on the internet to find what im looking for.

thanks to everyone in advance.

 

good luck finding ANYTHING having to do with the carburated 2nd gen... a few old friends of mine put in b20a from the 3rd gen... *shrugs* i wish i could help but i'll see if i can find anyone knowing a damn thing about this.... most of us are FI....

 

:dunno: ehh, well my bimmer is FI, but i just want this thing to get deccent gas milage.

how much did your friend invest into his b20a swap? and will the auto tranny i have mate to a b20a? or will i need to get a 3rd gen tranny for it as well? that wouldnt be a bad idea because i think this tranny is on its way out.

iv worked on alot of hondas doing performance modifications for friends and i custom built my turbo kit for my bimmer so i dont have any problem with swaping the motor on my 2nd gen.

the car also needs some general TLC. new ball joints, struts etc.. can somone point me to the direction of a good site for honda parts? just OEM stuff. this car dosent need anything performance..

 

www.hondaautomotiveparts.com

 

probably need to rebuild the carb on that puppy, does it pass inspection?
that mileage sounds horrible, especially since that car was designed during the gas crisis years and that is unacceptable mileage for any honda 1.8 L regardless, much less a carb model. u may have a bad sensor or emissions system that is eating gas


hey prelude-chick
what exactly is different about the JDM 89 Prelude vs the USDM

have u ever run your car at the track?
or raced anything worthwhile?

just wondering since ive never seen or heard of a JDM 3G before

~boomer

 

hey boomer, thanks for the info. we dont have emissions here in Lincoln NE so i cant tell you if it would pass or not. but im pritty shure it wouldnt just from the way this thing runs.

i checked out that link to majestic honda website and it looks like tyey have lots of parts, but maybe not many people purchace parts for an 83 prelude. when i look up the parts (example: carburator, it shows a picture of a fuel injection manifold for a different motor. when i search for "front shock absorber" it shows me a parts scematic of wheat looks like a shifter assembly or a clutch assembly. :dunno:

ill keep looking.

 

click on the topmost left honda accord picture under the H symbol, then enter in the vehicle information, and at the bottom select your part from the list, its a pretty indirect and broad list so you may need to use your thinking cap to figure out what parts you need and what category they fall under.

~boomer

 

heh nevermind, im an idiot

it should have alot more stuff available, but it looks like they dont stock those parts or even have descriptions.
guess that site is out

~boomer

 

im still looking for a technical website for this car. maybe something that shows how the carborators are assembled.

im trying to fix and oil leak. from the best i can tell its coming from below the carburators around the oil filter but the oil filter its tight. it looked like it was coming from the head to oil pan return hose and i put a clamp on that and it seemed to stop coming from there but its still leaking from somwhere around the oil filter.

i dont know what the corect timing is but last night me and a friend timed the car. it was at 2 degrees advanced, i advanced it to 18 degrees advance. overal drivability is much better. im not shure what this car should be advanced to but it dosent ping at all while driving and it just has 87 in it.

anyone know the corect timing advance for this car or know where i can find this information?

 

it doesn't have the same intake or exhaust manifolds basicaly the only real difference... i left it all jdm bc i don't have emissions.. it comes with 10 more horse power and i get better gas mileage...

i also mainly got it b/c mine actually came with some paper work noting the mileage.... even if it didn't there is no way it had more than 40k miles b/c of the laws in japan.. it's also cheaper buying it than the USDM ones (i don't know why to be honest)....

i haven't taken it to the track or raced anything b/c i don't believe in street racing after a dear friend of mine died 2 years ago doing it.. also b/c it's the jdm beater car :naughty: :laugh:


btw.. every honda/acura car has a jdm component... i.e. the h22a7 (euro accord) or the h22a (prelude)