Black R

I'm making this thread to keep track of my trials and tribulations for the season.
This is my 2016 autocross thread - Atlanta region SCCA, SMF class

I currently have two cars that I run in this class:



91 civic Si - swapped b18c5 (jrsc @ 10 psi) - primary

(This car has an ATS gearset / final drive / LSD:

Gear Ratio Final MPH @ 9200 RPM @ 80 MPH

1 - 3.077 - 15.18 - 42.2 - 17423
2 - 2.105 - 10.35 - 62.0 - 11879
3 - 1.652 - 8.13 - 78.9 - 9334
4 - 1.308 - 6.46 - 99.3 - 7410
5 - 1.033 - 5.08 - 126.3 - 5827
Axle ratio - 4.929
Tire diameter - 23.44" (I did this with a 205/50/15 tire as an example.)




88 civic std - swapped b18a1 (NA) - secondary

The eventual goal is to just have one dedicated autox car, that being the lighter 88 chassis - but of course that's subject to change; $ and time being the contributing factors.



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Here's the schedule:


Schedule | Atlanta Region SCCA

Autocross / Solo

March 5th – TNT – Turner Field (Atlanta, GA)
March 6th – P1 – Turner Field (Atlanta, GA)
- April 20th – TNT – Atlanta Motorsports Park (Dawsonville, GA) – During Track Night in America
May 1st – P2 – Atlanta Motorspeedway (Hampton, GA)
- May 25th – TNT – Atlanta Motorsports Park (Dawsonville, GA) – During Track Night in America
- June 29th – TNT – Atlanta Motorsports Park (Dawsonville, GA) – During Track Night in America
July 9th – Starting Line – Turner Field (Atlanta, GA)
July 10th – P3 – Turner Field (Atlanta, GA)
July 23th – Novice School – Road Atlanta (Braselton, GA)
July 24th – TNT – Road Atlanta (Braselton, GA)
- July 27th – TNT – Atlanta Motorsports Park (Dawsonville, GA) – During Track Night in America
August 6th – P4 – Turner Field (Atlanta, GA)
August 7th – P5 – Turner Field (Atlanta, GA)
- August 24th – TNT – Atlanta Motorsports Park (Dawsonville, GA) – During Track Night in America
October 22nd – P6 – Atlanta Dragway (Commerce, GA)
October 23rd – COC – Atlanta Dragway (Commerce, GA)
November 5th – Novice School – Road Atlanta (Braselton, GA)
November 6th – Fun Event – Road Atlanta (Braselton, GA)

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Black R

Reserved.

Black R

Quick list of things I need to get done on the black car before the next event:

Retune with hondata S300. (Currently on Crome pro.)

Weld up slip fit test pipe that gets knocked loose on speed bumps.

Mtf change.

New front pads - the hps on there currently just don't bite hard enough for the Hoosiers IMO.
I'll try hp+ next.


Future fixes:

Install the heat exchanger and pump for air to water cooler.

Cut out front bumper.

Remove AC components.

Install DA front knuckles with karcepts hubs and rsx axles.

Scott.

iTrader: (1)

in for this. local, just ran at autoxatl last weekend

rbwdriven

Do I need to look for a ac delete tube for ya if you remove ac stuff?

Black R

^ What does ac delete tube do?

I want to say yes. lol

rbwdriven

when you take out the ac components.

some people leave the ac compressor on the firewall.

ac delete tube, you can remove that and still at least have heat.

Connects to the blower motor and the heater box (behind the dash)

I'll look tomorrow, I'm going to pull a part

Black R

Yes please!

I need heat, but AC has to go due to weight!

Black R

Yesterday was points #1.

In the black car, hondata s300 wasn't recording wideband o2 in my datalogs, so I couldn't street tune it.

I decided to play it safe and just drive the grey car for this event.

Did I mention it's totally not prepped?

It has lowering springs, no swaybars, a hankook / Toyo tire combo, and full interior.

Also, the ill-fitting temporary radiator and 30lb battery both need to be replaced!

It's open diff too! Lol. And second gear is shot due to the abuse it took when I broke the clutch pedal bracket recently.

I do have a spare 4.9 final drive tranny with helical LSD that I could swap in...


Anyway, here are my times:

Run 1: 46.695
Run 2: 45.945
Run 3: 45.451
Run 4: 44.971 DNF

Yes, I carried too much speed and flubbed the last cone at the end of the slalom before the finish gate and dnf'd.


Oh well.

It seems I'm in first place though due to lack of competition!

rbwdriven

checked all the cars at every pull a part.

did not see one.

most were ac equipped cars.

Found one on line.

1988-1991 civic hatch/sedan ac delete duct sh3 sh4

Black R

Dang why do they cost so much?!

joel n

I am not sure in the difference in the CRX and the EG civic/del sol setup, But we took the A/C out of our Del Sol racecar, just removed the heater box, removed the A/C evaporator. That made a hole in the box about 2 inchs wide and 7 inchs tall, just covered the hole up with some hard plastic and sealer and self tapping screews. Box was sealed up and worked great for heat still.

Black R

Thanks for that tidbit. ^^^

motoxxxman

the ac core in the heater box doesnt weigh squat, I dont really see the point in going through so much trouble to remove it, especially when the adapter duct just adds most of that weight back to it. all the engine bay stuff is where the weight is.

SM and SMF class, I thought you can motor swap OR boost an n/a motor, but not both? did they change the rules in the last couple years?

I usually run SM because either a) theres few or none running SMF for me to actually compete against, and b) when I do have competition, its not much for competition haha.

for pads, I run HPS in the rear, and HP+ in the front, its the perfect combo for my car, typically running hoosier a6's

Black R

Sm and SMF can have swap AND boost.

There are weight penalties for each.

The 1st and 2nd place finisher last year at nationals was a crx hf k20 with a blower.

3rd place was an allmotor k24 eg.

ReDemoN

I need to get up there and run a few events with you guys.
You should be down here for the Tour this weekend.

prjct92eh2

Looking good Ken!

motoxxxman

ah awesome. maybe the rule I remember is that you can't boost and swap a motor from a different manufacturer?

Black R

The pertinent rules for drivetrain:

And


Source:

http://cdn.growassets.net/user_files...pdf?1456437325

Black R

So for my car it's:

1750 + 225 + 125 = 2100 lbs

motoxxxman

that doesnt make sense though?
and
my interpretation of that is you can not swap the engine for something that was not a factory option in your actual chassis. IE: b18c in a civic is not allowed because the engine is for an integra. but h22 is allowed in my 1990 prelude, because it originally came in newer preludes, and the rule states "model" but not "year" or "chassis code".

but then it says
makes no sense to me, because the wording keeps specifying "must be from the same MODEL anywhere in the world"

Black R

I know the wording is confusing.

But clarification from the SCCA allows any honda / Acura motor into any honda / Acura chassis.

I can't use my DART block though...