GI8U2racing

1988 CRX HF

Things affecting handling for information:
- battery relocated to back
- no heat, no a/c, gutted rear
- B18C5 (generally considered pretty light)
- FSTB, rollbar
- Azenis 205/50/15 RT-615's on Falken Hanabi 15x7's all around, equal tire pressures at 29 psi (low i know)
- GC 400f/600r springs
- Koni Yellows
- ST 22mm rear sway bar on outer most hole, stock CRX HF front sway bar
- Replaced rear trailing arm bushings

I started off with the rear shocks full stiff, front full soft: oversteered
Then I put the rear halfway soft, front stillfull soft: oversteered
Front and rear at full soft, getting desperate here: oversteered
Not this is nuts, rear full soft, front halfway stiff: oversteered

What is wrong? I have VIR HPDE next weekend!

I'm going to try 33 psi up front, 32 psi in the rear sometime soon, maybe that'll help.


Modified by GI8U2racing at 11:52 AM 3/25/2007

577HondaPrelude

are you on the brakes at all during turning? If you yes, then that's your problem.

GI8U2racing

Of course not, I am usually in partial throttle, which should make it understeer if anything. I have done some turns without throttle, and it oversteers then too. Should I try disconnecting the rear sway bar?

PIC Performance

A guy on another board had a similar problem, with the rear stepping out uncontrollably, mid corner. for him, it was his left front upper balljoint.

SicNA94TegGsR

Mine had a problem with the rear toe out, got the car alligned, and it went away.

GI8U2racing

I am aligned as of 2 weeks ago and have all new ball joints up front.

o-man

Jon, what were the specs on your alignment? with that set up, car should be quite neutral to oversteery(word?) I would stiffen the front shocks, and maybe raise the air pressure in the front.

Where were you able to drive it to find it oversteered, auto-x?

prkiller

I would like to know your alignment specs as well. Were you at a trackday or autox? Was it high speed or low speed corners?

With that setup, the car should push and not have any oversteer on throttle depending on the alignment.

GI8U2racing

I figured it out...the rear right wheel bearing was not seated on all way, allowing me to move the wheel around in any direction. I fixed that, then put all the tires to 32 psi, it understeered like a *****

So now I have it 90 degrees off full soft in the front, 90 degrees off full stiff in the rear, and it's perfect.

I did it in an open parking lot at about 30 mph doing a continuous circle like a skidpad.

Got a new problem though, my gas tank builds pressure and leaks gas out the fill...I guess I'll start a new thread

DC5Tuner

88 CRX's had different rear compensator arm mounting locations vs the 89-91, hence the 88's are known for being quite a bit more twitchy in the rear.

I had a similar issue with my 88 CRX Si, that thing would just snap oversteer if I wasn't careful! Your spring rates also might have something to do with it? I don't know too much about older hondas in terms of spring rates but I thought most people ran slightly higher front rates then rear. I know the newer hondas (DC5/EP3,etc) they run higher rates in the rear.

Anyways good luck figuring out what it is.

lil_mc_4055

Drill a hole in the gascap, like 1/16" or so, just to relieve some pressure... My circle track car did that...

PeteVXR

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GI8U2racing &raquo;</TD></TR><TR><TD CLASS="quote">

Got a new problem though, my gas tank builds pressure and leaks gas out the fill...I guess I'll start a new thread </TD></TR></TABLE>


Does the car have a full exhaust? If not make sure you have a turn down. I had a turn down fall off my civic and the same thing happened, the heat caused the fuel to evaporate and pressurized the tank.