Ok, let me just list my mods and give you the weight of the vehicle. You may be surprised. I know I was:

1991 civic si hatchback
usdm b18c5 motor
hasport billet motor mounts + hasport linkage to support hydro tranny in a cable pedal'd car
usdm type R transmission with ATS 4.9 final drive and ATS LSD
usdm type R 5-lug suspension and brakes all around (shocks, springs, calipers, hubs, rotors, front forks, and rear lower control arms)
usdm type R wheels all around with 225/50/15 falken azenis
usdm type R ABS installed
usdm type R A/C retained, charged, and cold as ice!
no power steering (it never came on the car, so I didn't try to retrofit it)
momo steering wheel
full obd2 usdm type R wiring harnesses used throughout the car
hytech header
greddy short ram intake
hondata p28 ecu/ stock p73 ecu
2.5" mandrel bent b-pipe side exit exhaust (exit behind passenger door)
itr gauge cluster
removed rear seats and plastic panels
removed spare
removed tools
retrofitted 88-89 seatbelts in b-pillar instead of door. stock door mounted seatbelts removed.
jimfab traction bars
additional reinforcement to said traction bars welded in, to support skidplate/ lower tie bar.
full tank of gas.


2323 LBS as measured at the SCCA S/E divisional this past weekend in SC.

Is this listing correct?

(taken from https://honda-tech.com/zero...56615)

1988 Honda CRX Si MT 2017
1988 Honda CRX DX MT 1922
1988 Honda CRX HF MT 1819
1988 Honda Civic DX SDN MT 2039
1988 Honda Civic LX SDN MT 2138
1988 Honda Civic DX HB MT 1993
1988 Honda Civic HB MT 1933
1989 Honda CRX Si MT 2138
1989 Honda CRX DX MT 2048
1989 Honda CRX HF MT 1834
1989 Honda Civic DX SDN MT 2147
1989 Honda Civic LX SDN MT 2211
1989 Honda Civic Si HB MT 2161
1989 Honda Civic HB MT 2013
1989 Honda Civic DX HB MT 2088
1990 Honda CRX Si MT 2174
1990 Honda CRX DX MT 2103
1990 Honda CRX HF MT 1967
1990 Honda Civic DX SDN MT 2262
1990 Honda Civic LX SDN MT 2322
1990 Honda Civic EX SDN MT 2374
1990 Honda Civic Si HB MT 2291
1990 Honda Civic HB MT 2127
1990 Honda Civic DX HB MT 2165
1991 Honda CRX DX MT 2103
1991 Honda CRX HF MT 1967
1991 Honda CRX Si MT 2174
1991 Honda Civic DX SDN MT 2262
1991 Honda Civic LX SDN MT 2322
1991 Honda Civic EX SDN MT 2374
1991 Honda Civic DX HB MT 2165
1991 Honda Civic Si HB MT 2291
1991 Honda Civic HB MT 2127

So basically the difference in weight for the lightest to heaviest HATCHBACK's from 1988 (1933 LBS) to 1991 (2291 LBS) is 358 lbs?!

Am I to assume then that if I were to take my shell and ditch it for a 1988 base hatch that it would weigh approximately 358 lbs less than my 1991 si with the same mods/ swap, etc?! That would be 1965 LBS with all of the mods I listed above!!!

Someone tell me what I'm missing..... otherwise I will be swapping shells VERY soon.....



Modified by Black R at 5:43 PM 7/26/2004

 

How much gas did you have?

 

you are correct but will all the mods fit the change up from 88 to 91?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jurassic Four &raquo;</TD></TR><TR><TD CLASS="quote">How much gas did you have? </TD></TR></TABLE>

.....I just added it. Full tank.

 

That could be part of the problem... But, I would think that the shells are identical. I know the doors are different, at least for CRX's, did you take out all of the door reinforcements?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jurassic Four &raquo;</TD></TR><TR><TD CLASS="quote">did you take out all of the door reinforcements?</TD></TR></TABLE>


Nope.

The only things changed were what I posted. The seatbelt parts were removed from the doors. Reinforcements, side impact beams, etc were retained.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Black R &raquo;</TD></TR><TR><TD CLASS="quote">


Nope.

Reinforcements, side impact beams, etc were retained. </TD></TR></TABLE>


I read somewhere else on H-T that the doors are 50lb extra a side, because of that. So that 100lbs... then, you got to add the the C5 is Dohc, making it a little beefier.

 

Here's some information from Todd00:

"A base won't save you 358lbs. Maybe like 75, but certainly not 358. You have to remember that the base 88 vs a 91 Si, the weight differences was:
1) in the motor
2) a/c figured into 90 and 91 Si weight
3) bumpers and side impact door beams
4) more spartian interior

And that's pretty much it. Your best bet would be to put 88 bumpers on your car, but otherwise that would be a f*ckton of work for just under 100lbs weight savings.

FWIW, my 91 Si in STS trim last year was 2105 with 1/2 tank of gas and full exhaust. The guys running the 88 STDs with Si drivetrain were around 2030."

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Black R &raquo;</TD></TR><TR><TD CLASS="quote">Here's some information from Todd00:

"A base won't save you 358lbs. Maybe like 75, but certainly not 358. You have to remember that the base 88 vs a 91 Si, the weight differences was:
1) in the motor
2) a/c figured into 90 and 91 Si weight
3) bumpers and side impact door beams
4) more spartian interior

And that's pretty much it. Your best bet would be to put 88 bumpers on your car, but otherwise that would be a f*ckton of work for just under 100lbs weight savings.

FWIW, my 91 Si in STS trim last year was 2105 with 1/2 tank of gas and full exhaust. The guys running the 88 STDs with Si drivetrain were around 2030."
</TD></TR></TABLE>

Base models has far less sound deadening tar........ONLY the Si has the Sunroof and all the brackets , mounts and hardware none of the others have. The STD and HF have smaller lighter brakes and axels too.

 

more knowledge from Todd00:

"Is this car your daily or just a weekend project? And, I forgot to add the roof in my list. That removed alone will save ~45 lbs. So roof and bumpers and you should be within 20-30 lbs of an 88 STD. And depending upon where you're at, good luck finding a nice 88 that isn't rusted to the ground."

and regarding people with b-series swaps in an EF:

"but most of the guys who go that route usually gut everything and certainly don't add 5-lug, a/c, abs, etc. I think 5 lug was estimated at about 40lbs heavier than 4-lug?"

 

huge props for getting ABS into a ef platform.

umm, lightest car is a crx hf. replace the rear glass with lexan and it gets even lighter. i dont think it would be worth it to swap everything over though. todd is right about the bumpers and doors.

 

My 91 Si Hatch with a b16a swap, rear disks, and that's about it weighed in at a hefty 2350 without the rear seat, spare, jack, me, and only 1/4 tank of gas.

I've since added a turbo setup with a water/air intercooler system, but swapped out a few small parts for lightweight items... Lighter motor mounts(went from adapters to Hasports), aluminum LRCA's, and a few other aluminum adjustment pieces, cleaned up about a pound of wiring for gauges and GReddy goodies, put on 15" rota's instead of heavy 16" ADR's, and ditched the A/C stuff completely.

I'd HATE to see what my motor setup in an 88 HF CRX would do. If I trapped 114, I'd bet nearly 120 is possible with 400 pounds less car to pull around.

 

Not bad for having all the ITR stuff on there. You only really added like 30-40 lbs to the car. You gained alot of nice stuff. I think a little weight isn't bad when you get benefits out of it.

DEF

 

My 1988 Std. weighed about ~2100 with full gas stock.

With the B16 and gutted with lotsa mods. Only 1 seat too
It's down to 2050 with 3/4 gas.

ABS, AC, and those 225s are big weight additions. For all
the stuff you got, 2300 is not bad with the full gas tank.

 

Oh I agree..... 2300 is quite light with what is in it. I was afraid that It would be 2450 or higher~!

But my goal is 2000lbs without driver. And I'm keeping the A/C.

I guess a lighter battery and c/f hood might take some weight off too...

But I'm trying to decide whether it'll be worth it to swap to an 88 std hatch or just try to lose weight off this car somehow (~300lbs is a lot to lose!).....

 

Sunroof plug will save you ~40lbs or so. CF or fiberglass are both available on the market...I have fiberglass in mine. (But this will change your Auto-x class...I have limited knowledge in that subject, however)

Alex

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Quik89Si &raquo;</TD></TR><TR><TD CLASS="quote">Sunroof plug will save you ~40lbs or so. CF or fiberglass are both available on the market...I have fiberglass in mine. (But this will change your Auto-x class...I have limited knowledge in that subject, however)

Alex</TD></TR></TABLE>


Don't worry, I'm already in DM..... Basically, anything goes!