rolling a car - how likely?

Piotrush · 03-04-2008, 08:50 PM

Hey. I'm contemplating buying a set of 17x7 Kosei ks-ts for my 07 si coupe - car is stock, soon to have HFP suspension. Seller has a set of hoosiers A6 mounted. A friend of mine told me theres a risk of rolling the car with that setup. I asked wtf he was talking about he said "breakaway left-rights in a saturn (low-cg) on slicks make em roll" I can see that happening on an hard off camber turn, or if I hit a rut in the pavement. But with the hfp suspension and a decent alignment I think I should be ok. I don't understand why slicks would make a car rolling much more likely so I thought I'd try to get a decent explanation here. Threads like these make me think twice.

Honda-Tech.com: Road Racing/Autocross: 9/22 LVR autocross, w/ pics. a rolled civic.

Peter

Blktrax · 03-04-2008, 11:27 PM

It’s highly unlikely, especially on a new or newer car. Most of those types of problems stem from other issues like old rubber bushings in the suspension failing, ball joints coming apart, ect. Generally these things wouldn't result in a roll, but a really bad day and a lot of damage. If you read any type of maintenance book, shop manual, or any type of racing information. There’s good advice in those books; “Before and after each event, check suspension, brake parts and fasteners for wear, damage, and proper torque."

Epically in a racing situation you put much more stress on components than everyday driving or even spirited driving. Some will say, "Oh Honda built the SI for racing purposes" and I agree with that; With the inclusion that it needs to be maintained like a race car if that’s it's application.

Just trying to be helpful, try not to let the misfortune of few dissuade you, when the many have no issues.

Solo Intent · 03-05-2008, 03:16 PM

if you roll a civic, then you shouldn't be on the road period

Solo2EG · 03-06-2008, 10:14 PM

Sure it's possible but (as I said on your TOV thread) it's very unlikely. I've been autocrossing for 10 years now and have been to hundreds of events and have yet to see a rollover. I personally have been running the Kumho V710 (one of the stickiest tires you can get) and have messed up many times and have never even come close in my EG Civic (though the suspension is heavily modified)

Some friends of mine were at an event where a guy with a Geo Metro on stock suspension and R compounds did roll his car though... that's just asking for trouble...

nayilsi · 03-06-2008, 10:57 PM

from my Hotmail Junk .....
Subject:
forum-admin@vtec.net [TOV - Amateur Racing & Driving]: rolling a car - how likely?‏

lmfao....

bluesunit · 03-06-2008, 11:24 PM

Pretty unlikely, however, we had a guy in our region with an early 90's 3-series on stock suspension and R-comps who got his car on two wheels at about a 85 degree angle.

He landed right side up.

honda93 · 03-07-2008, 10:17 AM

Quote:

Originally Posted by Solo2EG

Some friends of mine were at an event where a guy with a Geo Metro on stock suspension and R compounds did roll his car though... that's just asking for trouble...

The O.P. PM'ed me with the same question and I told him the same thing. Yes, while a car like a Civic, Cobalt, or tC can be autocrossed on stock suspension components and R-Comps, one MAY find it inadvisable to autocross a taller, narrow track, generally older car with a high cG. Like old Rabbits, Yugo's, etc.

Anthony "Mario" Crea
NNJR-SCCA

bluesunit · 03-07-2008, 12:27 PM

Quote:

Originally Posted by honda93

Yugo's

Ha, this year is supposed to mark the return of the Factory Race Yugo to Solo 2 in my region.

***GeezerSi*** · 03-07-2008, 12:39 PM

00R101 · 03-11-2008, 03:14 PM

Rollovers are very, very rare in autocross. They do happen if there is some obstacle that trips your car when you are going sideways. They also happen when someone has a tall car, completely worn out shocks, sticky tires and they don't give up in a tank slapper. If you have a new stock Si, don't worry about rolling over even with R tires. BTW I am about to start the season with your exact same setup.

03-04-2008, 08:50 PM	#1 (permalink)
Piotrush Senior Member Join Date: Jul 2007 Location: Stamford CT Age: 25 Posts: 144 Peter iTrader: 0 / 0%	rolling a car - how likely? Hey. I'm contemplating buying a set of 17x7 Kosei ks-ts for my 07 si coupe - car is stock, soon to have HFP suspension. Seller has a set of hoosiers A6 mounted. A friend of mine told me theres a risk of rolling the car with that setup. I asked wtf he was talking about he said "breakaway left-rights in a saturn (low-cg) on slicks make em roll" I can see that happening on an hard off camber turn, or if I hit a rut in the pavement. But with the hfp suspension and a decent alignment I think I should be ok. I don't understand why slicks would make a car rolling much more likely so I thought I'd try to get a decent explanation here. Threads like these make me think twice. Honda-Tech.com: Road Racing/Autocross: 9/22 LVR autocross, w/ pics. a rolled civic. Peter

03-07-2008, 12:39 PM	#9 (permalink)
*GeezerSi* Hidy ho neighbor Join Date: Jul 2006 Location: Palm, PA Posts: 12,657 -> Ken iTrader: 5 / 100%	__________________

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03-04-2008, 11:27 PM	#2 (permalink)
Blktrax Senior Member Join Date: Dec 2007 Location: NC Age: 27 Posts: 228 Adam iTrader: 0 / 0%	It’s highly unlikely, especially on a new or newer car. Most of those types of problems stem from other issues like old rubber bushings in the suspension failing, ball joints coming apart, ect. Generally these things wouldn't result in a roll, but a really bad day and a lot of damage. If you read any type of maintenance book, shop manual, or any type of racing information. There’s good advice in those books; “Before and after each event, check suspension, brake parts and fasteners for wear, damage, and proper torque." Epically in a racing situation you put much more stress on components than everyday driving or even spirited driving. Some will say, "Oh Honda built the SI for racing purposes" and I agree with that; With the inclusion that it needs to be maintained like a race car if that’s it's application. Just trying to be helpful, try not to let the misfortune of few dissuade you, when the many have no issues.

03-05-2008, 03:16 PM	#3 (permalink)
Solo Intent Senior Member Join Date: Feb 2008 Location: Kent Age: 24 Posts: 251 Brian iTrader: 0 / 0%	if you roll a civic, then you shouldn't be on the road period

03-06-2008, 10:14 PM	#4 (permalink)
Solo2EG Senior Member Join Date: Jul 2007 Location: Canada eh! Posts: 541 Tod iTrader: 0 / 0%	Sure it's possible but (as I said on your TOV thread) it's very unlikely. I've been autocrossing for 10 years now and have been to hundreds of events and have yet to see a rollover. I personally have been running the Kumho V710 (one of the stickiest tires you can get) and have messed up many times and have never even come close in my EG Civic (though the suspension is heavily modified) Some friends of mine were at an event where a guy with a Geo Metro on stock suspension and R compounds did roll his car though... that's just asking for trouble...

03-06-2008, 10:57 PM	#5 (permalink)
nayilsi Senior Member Join Date: Jul 2007 Location: I have to return some Video Tapes. Posts: 6,239 iTrader: 0 / 0%	from my Hotmail Junk ..... Subject: forum-admin@vtec.net [TOV - Amateur Racing & Driving]: rolling a car - how likely?‏ lmfao....

03-06-2008, 11:24 PM	#6 (permalink)
bluesunit Senior Member Join Date: Dec 2005 Location: New Orleans, LA Age: 27 Posts: 276 iTrader: 0 / 0%	Pretty unlikely, however, we had a guy in our region with an early 90's 3-series on stock suspension and R-comps who got his car on two wheels at about a 85 degree angle. He landed right side up.

03-11-2008, 03:14 PM	#10 (permalink)
00R101 Member Join Date: Jan 2006 Age: 52 Posts: 75 iTrader: 0 / 0%	Rollovers are very, very rare in autocross. They do happen if there is some obstacle that trips your car when you are going sideways. They also happen when someone has a tall car, completely worn out shocks, sticky tires and they don't give up in a tank slapper. If you have a new stock Si, don't worry about rolling over even with R tires. BTW I am about to start the season with your exact same setup.