92-95 Civic DX to ITA

[danielbeeson]

From Fastrack...

ITA
1. Classify 1992-95 Civic DX effective
1/1/2002. Specifications to follow in later
Tech Bulletin.

[danielbeeson]

Type
Aluminum Block and Head
Valvetrain
Sohc 4 valve/cyl.
Displacement
91.1 cu in/1493cc (DX, LX, VX, CX)
Bore x Stroke
2.95 x 3.33 in./75.0 x 84.5 mm (DX, LX, VX, CX)
Compression Ratio
9.2:1 (EX, Si, DX, LX)
Horsepower (SAE)
102 bhp @ 5900 rpm (DX, LX)
Bhp/Liter
68.0 (DX, LX)
Torque
98 lb-ft @ 5000 rpm (DX, LX)
Fuel injection
Elect. sequential port
Fuel
Unleaded, 87 pump oct.

Chassis & Body

Layout
Front engine/front wheel drive
Body/Frame
Unit Steel

Gross Vehicle Weight Rating

Coupe
DX M/T: 3,245 lbs
DX A/T: 3,315 lbs
Hatchback
DX M/T: 3,090 lbs
DX A/T: 3,210 lbs
Sedan
DX M/T, LX M/T: 3,245 lbs
DX A/T, LX A/T: 3,315 lbs

Brakes

Front
10.3 in vented disc
Rear
9.4 in disc w/ABS (EX Sedan, Si Hatchback, EXa Coupe, Available on LX)
7.9 in drums (DX, LX)
Assist type
vacuum

Wheels
Pressed steel, 13 x 5 (DX, LX, CX)
Tires
P175/70R-13 (DX)
Steering
Rack & Pinion
Power Assist (EX, Si, LX, DX Sedan, DX Coupe w/ Auto transmission) Manual (DX Coupe w/Manual
transmission)

Overall ratio
17.5:1 (Power)
19.0:1 (Manual)
Turns, lock to lock
3.58 (Power)
3.88 (Manual)

Suspension

Front
Upper A-arms, lower L-arms, coil springs, tube shocks
21.0 mm anti-roll bar (EX, Si, LX)
Rear
Trailing arms on upper & lower lateral links, compensating links, coil springs, tube shocks
13.0 mm anti-roll bar (EX Sedan)


Standard Equipment, Civic Sedans

DX Sedan includes:
Dual Airbags (SRS), 1.5 Liter, 102-hp, 16-Valve Engine with Programmed Fuel Injection (PGM-FI), Power
Steering, 4-Wheel Double Wishbone Suspension, 5-Speed Manual or 4-Speed Automatic Transmission, P175/70 R13
All Season Tires, Coin Box, Beverage Holder, Fold-Down Rear Seatback with Lock, Adjustable Front Seat Belt
Anchors, Dual Manual Remote-Operated Mirrors
LX Sedan adds:
Power Windows, Mirrors and Door Locks, Cruise Control, Tachometer, Center Console Armrest with Storage
Compartment, AM/FM High Power Stereo Cassette with 4 Speakers, Quartz Digital Clock, Cargo Area Light, Front
Stabilizer Bar, 14" Wheels with Full Covers, P175/65 R14 All-Season Tires, Available Anti-Lock Braking System
(ABS) with 4-Wheel Disc Brakes
EX Sedan adds:
1.6 Liter, 125-hp, 16-Valve VTEC Engine with Programmed Fuel Injection (PGM-FI), Anti-Lock Braking
System (ABS), 4-Wheel Disc Brakes, Rear Stabilizer Bar, Air Conditioning, Power Moonroof

Standard Equipment, Civic Coupes

DX Coupe includes:
Dual Airbags (SRS), 1.5 Liter, 102-hp, 16-Valve Engine with Programmed Fuel Injection (PGM-FI), 5-Speed
Manual or 4-Speed Automatic Transmission, Power Rack and Pinion Steering (AT only) Power-Assisted Front
Disc/Rear Drum Brakes, P175/70 R13 All Season Tires, Beverage Holder, 2-Speed/Intermittent Windshield Wipers,
Fold-Down Rear Seatback with Lock, Dual Manual Remote-Operated Mirrors
EX Coupe adds:
1.6 Liter, 125-hp, 16-Valve VTEC Engine with Programmed Fuel Injection (PGM-FI), Power Rack-and-Pinion
Steering, Front Stabilizer Bar, 14" Wheels with Full Covers, P185/60 R14 82H All-Season Tires, Power Moonroof w/
Tilt Feature, Body-Colored Dual Power Mirrors, Power Windows and Door Locks, Cruise Control, AM/FM
High-Power Stereo Cassette with 6 Speakers ('94 and '95 models only), Quartz Digital Clock, Available Anti-Lock
Braking System (ABS) with 4-Wheel Disc Brakes

Standard Equipment, Civic Hatchbacks

All Civic Hatchbacks Include:
Dual Airbags (SRS), Multi-Point Programmed Fuel Injection (PGM-FI) Engine, 5-Speed Manual Transmission,
4-Wheel Double Wishbone Suspension, Beverage Holder, Split Fold-Down Rear Seatback, Coin Box, Two-Piece Hatch
CX Hatchback Key Features:
1.5 Liter, 70-hp, 8-Valve Engine, P165/70 R13 All-Season Tires, Rear Window Defroster with Timer,
Hatch-Open Warning Light, Remote Fuel Filler Door Release, Remote Hatch Release, Passenger Assist Handle, Dual
Manual Remote-Operated Mirrors
DX Hatchback Key Features:
1.5 Liter, 102-hp, 16-Valve Engine, Available 4-Speed Automatic Transmission with Power Steering, P175/70
R13 All-Season Tires, Adjustable Steering Column, Removable Cargo Area Cover, 2-Speed/Intermittent Windshield
Wipers, Rear Window Wiper/Washer, Remote Fuel Filler Door Release, Remote Hatch Release, Dual Manual
Remote-Operated Mirrors
VX Hatchback Key Features:
1.5 Liter, 92-hp, 16-Valve VTEC-E Engine, Lightweight 13" Alloy Wheels, P165/70 R13 All-Season Tires, Chin
Spoiler, Tachometer, Dual Manual Remote-Operated Mirrors
Si Hatchback Key Features:
1.6 Liter, 125-hp, 16-Valve VTEC Engine, Power Steering, 4-Wheel Disc Brakes, 14" Wheels with Full Wheel
Covers, P185/60 R14 All-Season Tires, Power Moonroof with Tilt Feature, AM/FM High-Power Stereo Cassette,
Cruise Control, Rear Window Wiper/ Washer, Tachometer, Adjustable Steering Column, Removable Cargo Area
Cover, 2-Speed/ Intermittent Windshield Wipers, Body-Colored Dual Power Mirrors

[NoRaceCarYet]

So,

This would seem to be a fair comparison... Certainly a cost effective car and quality vehicle...

Opinion: It could be a contender.

[danielbeeson]

88-91 Honda CRX SI Specs:

Displacement
97 cu in./1590cc (Si)

Bore x Stroke
2.95 x 3.54 in./75.0 x 90.0 mm (Si)

Compression Ratio
9.1:1 (Si)

Horsepower (SAE)
108hp@6000 28/32mpg 5spd (Si 3dr)

Torque
100@5000 (Si 3dr)

Fuel Economy
28/32 mpg (Si)

Chassis & Body

Dimensions
Wheelbase (in): 98.4
Length (in): 157.1
Width (in): 66.3
Height (in): 52.5
Curb Weight (lbs): 2127

92-95 Honda Civic DX Specs:

Displacement
91.1 cu in/1493cc (DX)

Bore x Stroke
2.95 x 3.33 in./75.0 x 84.5 mm (DX)

Compression Ratio
9.2:1 (DX)

Horsepower (SAE)
102 bhp @ 5900 rpm (DX)

Bhp/Liter
68.0 (DX)

Torque
98 lb-ft @ 5000 rpm (DX)

Gross Vehicle Weight Rating

Coupe
DX M/T: 3,245 lbs
Hatchback
DX M/T: 3,090 lbs
Sedan
DX M/T, LX M/T: 3,245 lbs

[NoRaceCarYet]

So, in the the comparison the CRX has a shorter wheel base, more Cubic inches, and less height and width...

What matters is how much better or worse the brakes are, how much more advanced or not the suspension is and whether the motor will respond the chiping and "normal" legal IT mods.. And of course whether or not they let it race at the same or similar weight.

In a direct comparison using Starbase Corp.'s VisDiff I see very minor differences, and if the brakes are as good or better and the weight can be kept low and the engine responds to tuning, then this is a potential CRX chaser.

But I need to know the braking "scores" and details of swept area and force applied etc. etc.

NRCY...

[downingracing]

This sounds better than ITS for the EX... Maybe we'll build this and have a good time in ITA!

------------------
Matt Downing
www.downingracing.com

[danielbeeson]

Matt... That's what I was thinking!

And just like "NoRaceCarYet" said... And of course whether or not they let it race at the same or similar weight.

Time will tell!

[il8apex]

I'm not sure I should let this out of the bag, but... Those 1.5L DX's were notoriously underrated from the factory. Most were much stronger in HP and Torque than the numbers suggest.

After reading this post I almost gave up the idea of prepping my EX for ITS and started searching the classifieds for DX cars. But then I remembered that EVERY single ITA race I've ever seen has had a bunch of M2M with cars banging into each other and everything else... I'll stick with ITS.

-Tom


------------------
Tom Southworth

'93 Honda Civic
Currently prepping for IT Roadrace, CSP AutoX
Sponsors wanted!

[downingracing]

Originally posted by il8apex:
I'm not sure I should let this out of the bag, but... Those 1.5L DX's were notoriously underrated from the factory. Most were much stronger in HP and Torque than the numbers suggest.

After reading this post I almost gave up the idea of prepping my EX for ITS and started searching the classifieds for DX cars. But then I remembered that EVERY single ITA race I've ever seen has had a bunch of M2M with cars banging into each other and everything else... I'll stick with ITS.

-Tom

Yes, but the M2M I've seen happens back in the pack. Hopefully we won't need to worry about being back there

I'm wondering what it would take to convert an EX to a DX? I know that open a can of worms, but I've seen many IT cars "bump" up or down by simply changing engines. Then there is the whole VIN issue... Any thoughts?

------------------
Matt Downing
www.downingracing.com

[il8apex]

Matt-

The VW guys have been running posts about this consistently... of course, theirs is a unique situation.

The Comp. Board will not allow you to "switch" a car's spec. The VIN number will usually tell you which model and trim level the car was from the factory, as well as some option codes.

VW GTI's seem to be a special case. In some cases there were no VIN codes to differentiate the GTI's from regular Golfs, or even 8v vs. 16v cars (ITB vs ITA, I think). In these cases it's not uncommon for people to "manufacture" a GTI racer from a Golf shell (See recent GrassRoots Motorsports for a perfect example).

I'm not implicitly familiar with the Honda codes, but I believe the EX and DX are not interchangeable.

-Tom

[downingracing]

Tom,

What about changing the VIN plates? How many plates do you need for IT?

If it takes purchasing a DX, then so be it. But if I can find a way to convert mine, "good for me"!

------------------
Matt Downing
www.downingracing.com

[NoRaceCarYet]

not a rant:::

The issue of manufacturing a car model is really only a concern if your competitors are a*s*o*e's I mean, who cares really...

I know a certain SSB Mazda protested a certain SSB Toyota a couple of years back for "manufacturing" the specific model after the car was totaled. This forced the second driver to rebuild his car again... but I can't imagine joe IT Driver would stoop to such a level - it's not legal per the letter of the law - but sheesh!

Sometimes a little comon sense would be nice..

I'm thinking DX Hatchback, painted just like Woo's! (my new hero)

;P

[danielbeeson]

"NoRaceCarYet; I'm thinking DX Hatchback, painted just like Woo's! (my new hero)"

I like the idea, but, it's just yellow!

My question is that, are they (SCCA) going to class all Hatchback, Coupe and Sedan in ITA or just the Coupe?

[Randy Shively]

Matt, it's pretty obvious what the rulemakers meant if you read ITCS p.6-7. I don't see any advantage to working around them. There are particular disadvantages.

You'll spend more money: sell your streetworthy car and buy a salvage or beat up model of the one you want. You can use the difference in price to buy more race parts. Okay, say money is no object to you...

The biggest disadvantage (IMHO) to "building" a different model then delivered from the factory is that if you're ever called on it, it's back to square one. The officials will put it in the car's logbook and then you're pretty much done with the car. You can take your race parts off and build another car but that's really not a lot of fun.

If you ever end up running at the front of the field you can bet your competitors will look long and hard at your car. Some people will call them a*s*o*e's but that doesn't help win the argument with the guys in the tech shed.

You have the maturity to sign your real name to your posts. I doubt you want it to be smeared with doubts as to whether or not you drive a legal car.

Cheers.

[downingracing]

Originally posted by Randy Shively:
You have the maturity to sign your real name to your posts. I doubt you want it to be smeared with doubts as to whether or not you drive a legal car.

Cheers.

Thanks! I was just curious since I know the VW guys "create" cars and noone seems to care. I have an SSC EX and just wanted some member thoughts about a conversion. Picking up a DX should be no problem and the parts for them are EVERYWHERE! I'm going to start converting the EX to ITS and we'll see if any DX's fall in my lap.

For the record: My car is 99% legal. (I'm missing a few trim pieces that made it 1% illegal in SS.) It will be 100% legal next year for IT or LP Prod.

Thanks for the input!

------------------
Matt Downing
www.downingracing.com

[greg_umbay]

94 Civic DX in ITA. That was my request for classifacation into IT. Competative? Not with my skills and budget I have a few things to do, like the window net and oil catch can then I'll get car tech'd. I'll enter SFR's drivers school in Feb.

This car is my only shot at racing. Long story, but here I am chasing a dream.

I've done the all of the IT legal suspension mods. It handles much better than stock. There is a large "import revoloution" world of suspension parts for this car. That's a great thing. But, there are't any chip mods that I can find for this car. I sent in the engine code and ECU numbers to many chip companies and they all said they have nothing for me.

As for HP and torque, the car kinda slugs and chugs uphill towards the corckscrew at Laguna. A new airbox/intake and some advice from a Speedvision driver made me and the car faster. Like I said, I have no talent. Maybe I'm staying in 3rd to long for no real gains. I am working on a program to data gather the usable RPM range.

My biggest problem is the gear ratios. I do most of Laguna in 3rd gear. When I start to shift the breaking markers appear. finding some light weight 13x7 wheels is tough. Panasport is all out until the next shipment from Japan. The car came with 13in wheels so I gotta stick to 13.

OK I gotta go now.

------------------

[NoRaceCarYet]

That's it a Yellow car - yes - Yellow!

I sure hope they allow us to run the HB - I'm not a fan of the Sedan..

[This message has been edited by NoRaceCarYet (edited October 25, 2001).]

[downingracing]

http://www.zdyne.com/

This is a company that will reprogram your ECU. Haven't used them, but I'd like to hear any input about them.

Thanks!

------------------
Matt Downing
www.downingracing.com

[This message has been edited by downingracing (edited October 12, 2001).]

[greg_umbay]

I'll give zdyne a look. I just might go for it.
Thanks, Greg

------------------

[solo2crx]

Originally posted by downingracing:
http://www.zdyne.com/

This is a company that will reprogram your ECU. Haven't used them, but I'd like to hear any input about them.

Thanks!

I have not personally used them for any work but they have a very good reputation among Honda Hybriders. In particular I have spoken or emailed with many 88-91 CRX owners who have Zdyne equipment in ther turbo, s/c, nos injected, LS/Vtec, B18, or B16 equiped cars and are very happy with the products.

With the Gold model I belive you have the ability to program your own setup for the ECU. There are even boards where users post their particular programs for certain setups and swap with other people.

Later,
Jason F.