halfkoreanboy

well i have a 1992 civic hatchback si i was wondering why the si weighs like 2200 lbs and the vx 2030 or something like that,i know a little bit has to be the moonroof and the front sway bar and 1.5 engine vs. the 1.6 couldnt do nuch but i do have a d15b not the d16z6 anymore lol but what else could i take out of mine not gutting it.. just to make it closer to the vx weight i know i got rear disc and that shouldnt add extra weight,and like cruise control system cant weigh to much but i might take it out, but all that stuff couldnt be like 200 lbs more can it lol ? but any suggestions to take things off i dont need from the si im not trying to start a weight reduction thread just all the differences in vx vs. si that i could do i should have search but theres so much stuff on honda-tech it would take me all day to search lol thanks....i know people get pissed and im sorry in advance this way is just easier for me

hushypushy

The Si has a shitload of sound deadening all over and it's minimal on the CX/VX. That's a substantial amount of weight.

dafuzzbudd

i thought 92-95 si was about 2440?
vx is about 2040

si:
sunroof (ppl say 100 lbs)
pwr windows
bigger front brakes
rear disk brakes
more chasis/floor matting
rear speakers
pwr steering
AC
engine
cruise control

PLEASE CHECK THE FAQ SECTION
92-00 make my brain hurt

infinitypro12

The SI badge weights 170 lbs. Ha ha, I haven't seen a weight thread in awhile thanks for taking me back. I think hushy pushy got it on the nose though.

'96typeR

why would you turn your si into a vx?!! i would just leave it, but thats just me....

halfkoreanboy

oh i was off ,i just checked it is 2326 for my si and vx 2094 i was just thinking that my car takes off pretty decent when just me in the car and when my cousin gets in hes like 140 pounds and i can feel the difference big time and i was just like dam if he gets out and i drop 100 more pounds of my si it would be even better lol....and i dont like the gut out your car look so i was just like searching weight of my car and saw vx and i was like how is there such a big difference but yea the sound detenig thing makes sense haha i guess i coulld shed a few pounds to since im 185lbs i guess ill pay some one to take the detening off (i sure as hell aint doing that) and cruise control and front sway bar off i hear thats 20 pounds not to sure though and since the thread is up any more weight i can take off my si that doesnt take away safty and looks lol

halfkoreanboy

wow the 94 hatch si weighs a little more well heres where i got my info http://hondacivicblog.com/honda-car-weight-list

Luke G.

there is a weight list here as well
http://clubeg6.com/eg-civic-hatchback-specs.php

batallic

power steering, cruise cruise, larger wheels, sway bar, sunroof and bracing around it

hushypushy

Here's a little info on the Si model from Wikipedia:

Do none of you guys read the FAQ or what? I noticed dafuzzbud actually mentioned it. This is may be useful

https://honda-tech.com/forums/honda-civic-del-sol-1992-2000-1/faq-lets-get-weight-thing-straight-1992-1995-hatchbacks-damn-150315/

etc

newtron63h

the dx, vx, and cx HB were all the high mileage models. to the point of adding underbody covers on at least one of those models to improve aerodynamics. so naturally the weight is going to be lower. but in 93, even the si was pretty minimalistic. my mom's didnt come with a stereo or speakers. manual windows. hers still has the sunroof and cruise of course as well as AC, but still pretty barebones.............thus why hers cost 13k in 93 and sticker price on my fully loaded Jetta GLi in 90 was 16k.

the weights ive seen for the CX, and VX are 2050lbs, and the DX being 2090. the Si is listed at 2270 this is all from clubcivic.com. although im not quite sure whether i shoudl trust those numbers or not. the power and tq numbers they have for the Si dont really make any sense. 125hp@6600 and 111ft/llbs@7000. well with that torque number and rpm, that means power @ 7000rpm should be 148hp. doesnt really match up.

but regardless, those weight numbers should be close, ive always heard the Si weighed around 2200 so thats about right.

hushypushy

Have you considered that, perhaps, the HP peaks at 6600 and then starts to drop? The redline is 7200, and I think fuel cutoff is 7400. But it seems that the max torque comes at 7000 RPM. Have you ever looked at a dyno chart?

newtron63h

well heres how i say that its doesnt match up. horsepower is calculated.
(TORQUE x rpm of the torque number already stated)/5252=HP

so (111 x 7000)=777000/5252=147.943HP

so from the numbers CC.com gives, the Si should have peak power of at least 148hp.

i seriously doubt that max TQ is at 7k while max power is at 6600. the fact that these engines dont have much torque and the fact that they rev high means that their peak torque will be lower than their peak power. id believe 6000 is peak torque. but its still not 111ft/lbs.

also this formula for figuring HP is the reason that on ALL dyno charts, the TQ and HP cross at 5252. this is of course depending on if the scale for the tq and hp are the same. i know thats a hard concept at first, and its a bit crazy to think about, but its true. and now for the really big blow............

Horsepower is a semi-real number. since it is calculated by using a torque measurement and the RPM of that torque, its kinda fictional. BUT it takes HP not torque to go from 150mph to 200mph. which is why F1 cars have 750hp at 19,000rpm, but only 207ft/lbs of torque at that rpm.

halfkoreanboy

hey cool thanks for the info i guess ill take some crap off the car i dont need like sound detoning,rear wiper motor,ive got a cat back that was way lighter than stock and my dc header is lighter than stock manifold,when i picked them up i could tell but i should have weighed it lol,ill probably look for the complete air bag system and yank it,and cruise control,maybe im taking the front sway bar off someone claims its almost 20 pounds,and im not sure if the d16z6 motor that was in it before was heavier than the jdm d15b i have in it now,and maybe a few more little things and ill start exercising more and drop like 20 pounds every litttle thing helps lol then ill go find a semi truck weigh station and see the progress thanks guys

krysted9354

U GUYS MISSED THE MOST IMPORTANT !!

the civic vx has many lightweight parts, exampole of a few,

alternator bracket is aluminium about 3 lbs all other are 15lbs cast iron,

flywheel from vx is 4.5lb less, less sound material, lighter exhaust,and engine has alot smaller parts l;ike IM and tb etc, also vx wheels weight like what 7lb a pop.

halfkoreanboy

wow this is great info thanks my car is going on a safe diet lol as long as i dont gut the interior,im keeping my bumper supports and im keeping my a/c for the hot 110 degree texas weather,and when it rains and its humid a/c is must power steering maybe can live with out,and the vx wheels only 7 pounds dang but i got to keep my 99-00 si wheels like 20 pounds each dam dam dam lol the moon roof is totaly worth it to keep it would be to much trouble to take that out anyways welding paint new headliner,i like it to much,i was hoping my hood that i got from a jdm importer was a little lighter but i doubt it i know in japan the hatchbacks had lighter doors for some reason but anyways my car starts a diet today lol

turboteg90

i love my vx even if it just has a b16.

turboteg90

holy crap your from the dfw too!

newtron63h

makes absolutely no sense to take out the sway bar. you will lose a HUGE part of your handling. whats the reason for lightening the car?

EK9r!der

my si didn't come with power windows!

halfkoreanboy

yea lol im from the d/fw lol

halfkoreanboy

oh i dont realy need sway bars im not into cornering and autox...im into quick take offs (every once in awhile) and good gas mileage.and i cant afford a b series motor swap and is not in my plans for the future ever lol the jdm d15b i have in it is quick and good on gas, when i drive like a granny i get like 35 to 38 mpgs in the city thats keeping the rpms real low so i figure if i loose weight on the car ill get quicker take offs once in awhile when i want to have fun and a little better gas mileage,and front sway bars i dont need for daily driving it just adds more stiffness when i hit bumps and railroads ugh a shitload everywhere here in dallas i hate bumps but my car has to be slammed the sprint springs are like soft rate springs i like the comfort lol but yea sway bars dont do anything for me and most civics dont have front sway bars i hear so its got to go

newtron63h

you want quick takeoff so you chose the d15b. im guessing it the 130hp version? do you know what the torque is on that engine? im just curious why you chose that engine over a z6 or y8(just examples of cheap and easy swap motors)

halfkoreanboy

i think its 130ps = 128.5 hp lol is what i read and like 101 is the torque,i was just looking for a shell to put a d15b in so i eneded up buying this si from a friend with it swapped in already so it was a plus for me but i pick d15b because id be buying it from a jdm engine importer you get a receipt it usually has low miles with a start up warranty and i heard they were faster stock to stock vs. z6 and y8 and its all around easier than finding someone selling a old beat up z6 or y8 long block worse case scenario i dont want to end up with someone elses trash and loosing cash , im not into rebuilding if my engine blows i can get another d15b engine 6 or 7 hundred shipped way cheaper than a rebuild and they a have a few importers here in dallas area but everything points to jdm d15b for me....lol

newtron63h

interesting