Subframes & Snap Oversteer: I'm a little concerned...

Kinja'd!!! by "way2blu does a rev update" (way2blu)
Published 05/04/2017 at 14:39

Tags: Hedge-seeking missile ; MR2
STARS: 0


Kinja'd!!!

I’m taking my MR2 to autocross in a few days. As of right now it isn’t perfectly aligned because the front subframe is bent from a previous owner’s date with a curb. This could make “Oh-Snap!” oversteer a bigger issue. How worried should I be?

I want to fix the suspension before I upgrade anything else on the car. It’d be backwards to add more power. Backwards in a hedge... What I’m wondering, is how expensive and extensive the effort would be to replace the front subframe (and probably the shocks too.) As far as I know, the damage is limited to that subframe and the rest of the chassis is solid.

I’ll know a lot more about its limit handling in its current state this Saturday. Times and results, maybe a video too if I can set it up well, will be shared here for all to chuckle at...

In the mean time, how much time/money should I plan to budget for this overhaul?


Replies (8)

Kinja'd!!! "Steve in Manhattan" (blogenfreude01)
05/04/2017 at 15:24, STARS: 0

Have you taken it to someone with a frame puller?

Kinja'd!!! "V8Demon - Prefers Autos for drag racing. Fite me!" (v8demon)
05/04/2017 at 15:26, STARS: 1

After replacing said front subframe; have you considered subframe connectors?

If it were me, I’d hold off on the autocross until it was sorted out. How much time and money to spend on the repairs is dependent on a few things. How vested are you in the car already? By that I mean monetarily AND emotionally.

Kinja'd!!! "Wrong Wheel Drive (41%)" (rduncan5678)
05/04/2017 at 15:36, STARS: 1

No point in holding off from autox unless its actually dangerous to drive the car like that. Assuming it drives okay on the highway and can go around turns at all, then its fine to autox. Sure it may be harder to control and not be as fast, but autox if fun regardless of actually doing well.

Kinja'd!!! "V8Demon - Prefers Autos for drag racing. Fite me!" (v8demon)
05/04/2017 at 15:40, STARS: 0

Assuming it drives okay on the highway and can go around turns at all, then its fine to autox.

Just because it can be done doesn’t mean it should be. I’ve seen Wranglers with the frame completely rotted through on one side drive upon roadways.

Have you had a body shop look at it yet?

Kinja'd!!! "Die-Trying" (die-trying)
05/04/2017 at 15:47, STARS: 1

get it on some jack stands. and get someone to help you. take a tape measure, and measure the suspension from one corner to the other(front driver to rear pass, front pass to rear driver). see exactly how far out of being square it is. if it is more than about a half inch difference, its big. if its only around 1/4 inch off its basically square, and an alignment shop should be able to put it back.

Kinja'd!!! "Wrong Wheel Drive (41%)" (rduncan5678)
05/04/2017 at 16:03, STARS: 2

Agreed, it definitely should be checked out and made sure to be safe. I am just saying if it is actually safe, then its a non-issue.

Kinja'd!!! "Invinciblejets" (invinciblejets13b)
05/04/2017 at 16:27, STARS: 0

Take it to a parking lot. Find the limits.

Kinja'd!!! "rockingthe2" (unpredictable-swerve)
05/04/2017 at 21:35, STARS: 1

First up, YAY! Another MR2 owner here! Secondly, there isn’t much of a front subframe on these, mostly some bracing holding everything together, you should be perfectly fine taking an autox as long as it’s not crabbing or vibrating excessively. For your last point, about $1500-2000 in parts, from my experience. Once you pull the underbody tray, anything bent should be readily identifiable. Make sure to replace as much of it as you can in pairs, and it may be worth your time to invest in a parts car