In the interest of escaping mastercard's evil clutches, I'm planning on autox'ing my ITA car instead of road racing the 2005 season.

Basically it's a 88 CRX Si set up in ITA trim, koni yellow OTS, 450f/650r, front sway removed, stock rear sway, hawk blue front pads, rear disc conversion with prop valve, stripped/caged, ITA spec motor (91 cam, 40 overbore, 15 thou shaved), welded diff w/ stock FD, 13" steering wheel

I'm thinking I'll have to lose the welded diff for sure, and maybe the little steering wheel too? I might use this as an opportunity to get a year's testing on an OBX lsd, without having to worry about throwing away a weekend's entry fees if it blows up.

Is there any other changes you autoxers would recommend? the last time I autox'ed was in 2000 with the same car completely stock.
Is there any little mods I should make to move up/down a class?

Thanks!

 

you can run the car as is in csp.

 

All IT legal cars may run in their Street Prepared class. They must retain the compelte IT prep - no mismatching IT and SP rules.

So, you can run it as-is. The welded diff might suck, so maybe add a real diff? I dunno.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ryan12321 &raquo;</TD></TR><TR><TD CLASS="quote">you can run the car as is in csp. </TD></TR></TABLE>

i think so too....

have fun though

 

Because of your motor you'de go straight to D-Prepared. A welded LSD is legal there if you want to keep it....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jojoforhelp &raquo;</TD></TR><TR><TD CLASS="quote">Because of your motor you'de go straight to D-Prepared. A welded LSD is legal there if you want to keep it....</TD></TR></TABLE>

Thats not correct. Crack Monkey said all the details and the car is legal for CSP. It is an IT legal motor.

 

The cam is not a stock cam correct? You can not overboar in CSP....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jojoforhelp &raquo;</TD></TR><TR><TD CLASS="quote">The cam is not a stock cam correct? You can not overboar in CSP....</TD></TR></TABLE>

What he said:

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ryan12321 &raquo;</TD></TR><TR><TD CLASS="quote">

Thats not correct. Crack Monkey said all the details and the car is legal for CSP. It is an IT legal motor.</TD></TR></TABLE>

 

you can over boar...to .0472

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jojoforhelp &raquo;</TD></TR><TR><TD CLASS="quote">The cam is not a stock cam correct? You can not overboar in CSP....</TD></TR></TABLE>

You follor IT rules out of the GCR instead. Just like you can run any wheel diameter in SP, with an IT car you cannot. You must use only the wheel sizes allowed in the GCR. You don't mix the rules.

 

I'm not familiar with the GCR so if thats the case I dont know why they would allow a race car in CSP?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jojoforhelp &raquo;</TD></TR><TR><TD CLASS="quote">I'm not familiar with the GCR so if thats the case I dont know why they would allow a race car in CSP?</TD></TR></TABLE>

They make a specific allowance for IT-prepped race cars to run the Street Prepared class in which they are listed. So, an ITA prepped CRX can run in CSP as long as it follows the IT prep rules. Similarly, an ITS BMW would run in DSP.

You have to realize, IT cars that run in Street Prepared are at a huge disadvantage. First, their wheel size is limited to whatever th GCR lists (in the case of the CRX, it is 14x7). They cannot update/backdate to the same extent (so you cannot use a lightweight body and Si motor). They cannot use ITBs or any other non-OEM intake manifold/TB setup. Although they can gut the interior, they must also run a full cage, so there is not much weight loss.

 

Intresting, mark me down for learning something new today.

 

I think those spring rates may be a bit much at most autocross sites, which tend to be bumpier / more poorly paved than most road courses.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Crack Monkey &raquo;</TD></TR><TR><TD CLASS="quote">
(in the case of the CRX, it is 14x7)</TD></TR></TABLE>

it's 15x7, now

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by krshultz &raquo;</TD></TR><TR><TD CLASS="quote">I think those spring rates may be a bit much at most autocross sites, which tend to be bumpier / more poorly paved than most road courses.</TD></TR></TABLE>

spring rates should be fine in my opinion. I'll be running 500/750 on my auto-x car next year. I've driven 500/600 and the only problem I had with that it didnt rotate enough for my driving.

 

+1 for IT cars (less ITE) being legal in their respective Solo II SP classes.

Those rates are right around what a lot of STS Civics use. Sounds fine to me.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jojoforhelp &raquo;</TD></TR><TR><TD CLASS="quote">Intresting, mark me down for learning something new today. </TD></TR></TABLE>Here, learn two things:

Boar:


Bore:

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ryan12321 &raquo;</TD></TR><TR><TD CLASS="quote">spring rates should be fine in my opinion. I'll be running 500/750 on my auto-x car next year. I've driven 500/600 and the only problem I had with that it didnt rotate enough for my driving.</TD></TR></TABLE>

I believe you, but I am surprised. In my considerably heavier GS-R, 600/1000 had me literally airborn in a couple places on one of our sites.

 

Thanks for trying but I knew that......lol

I also have a GSR and 300-400 rates are on the low side. I'll be going to 400-500 next year.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by krshultz &raquo;</TD></TR><TR><TD CLASS="quote">I believe you, but I am surprised. In my considerably heavier GS-R, 600/1000 had me literally airborn in a couple places on one of our sites.</TD></TR></TABLE>I've experienced two rear wheels in the air in a couple of places, and while it's hairy, the trade-off between the rare times you'll have a big enough bump for it to lift wheels and actually having enough spring rate to make sure the tires are used optimally everywhere else is worth it.

&lt;- 600/800 on a ~2380 lb autocross car, and thinking of going stiffer in the front.

 

spring rates all depend on where you run. back when I used to a-x my ITS e30 w/ 750f & 1050r springs I was airborne half the time, but back then the dc region used to run on some really bumpy lots. The little airport up by ft. meade was the worst. It had little concrete tie down pads surrounded by crumbling asphalt.

 

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

it's 15x7, now</TD></TR></TABLE>

this is official now? i've been out of touch while my ITA car rusts in my mechanic's back yard.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jojoforhelp &raquo;</TD></TR><TR><TD CLASS="quote">The cam is not a stock cam correct? You can not overboar in CSP....</TD></TR></TABLE>

you can overbore in SP, .040 over.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jojoforhelp &raquo;</TD></TR><TR><TD CLASS="quote">you can over boar...to .0472</TD></TR></TABLE>

I've already corrected myself.

 

I autocrossed my old ITA Civic once. It was a blast. Just ditch the Hawk Blues in favor of an aggressive street compound, and try to be on "good" tires (ie not year-old crusty Hoosier roadrace compound tires like I tried) - Kumhos or Toyos will do the trick. I'd also agree that you try to find an alternate to the welded diff. It will make the car push around the really tight stuff.

Do those things, try it out, and see how it handles Disconnect front or rear bar as needed to compensate for evil handling!

I have always thought that *some* IT-&gt;SP autocross cars could be really good. Probably not the Civic for the reasons mentioned above. Some DSP cars are competitive but really heavy and cannot/do not take advantage of much update/backdating. Maybe a DSP/ITS E30 325is? I think ITS weight is 2750 with driver, which is probably 100-150 lb lighter than any legal DSP E30 out there. But you're stuck with 7" wheels... Hmm...