What We Autocrossers Need |
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Romeo
Senior Post God Joined: 16 November 2008 Location: Canada Status: Offline Points: 3033 |
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Topic: What We Autocrossers Need Posted: 22 June 2011 at 5:22pm |
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Not the kind that Reptile from Mortal Kombat would rock out, no. Picture what the semis have to stop at prior to bridges. Now, divide that in to four individual plates and give it a full computer. The system is actually pretty cool. It can determine centre of gravity, weight bias front/rear, left/right, front-left/rear-right and front-right/rear-left. It's accurate to 0.1%. And, of course, it has the weight of the vehicle. Can you imagine the possibilities? One could adjust around all dead weight (Battery, amps, heater coil, etc) to their own desire. Figure out if their last weight-stripping venture accomplished as much as they thought. See how much one body upsets the balance of the car. Of course, there is a minute downside... It's $1050. But I mean, hey, divided up between five of us that's only a mortgage payment or two! |
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Never shift into reverse without a back-up plan.
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Patrick
Newbie Joined: 19 April 2008 Location: Vancouver Status: Offline Points: 5 |
Post Options Quote Reply Posted: 22 June 2011 at 7:12pm | |
How about four bathroom scales bought at Value Village for 20 bucks tops?
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Capt Fiero
Admin Group Founding Member Joined: 12 February 2007 Location: Canada Status: Offline Points: 4039 |
Post Options Quote Reply Posted: 22 June 2011 at 7:43pm | |
Or just go here, its the Mecha of the car geek crowd. Scale sets as cheap as a couple hundred bucks. |
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Capt Fiero
88 Fiero GT 5spd V6 Eight Fifty Seven GT V8 5spd. |
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AllanJ
Senior Member Joined: 28 July 2010 Status: Offline Points: 254 |
Post Options Quote Reply Posted: 22 June 2011 at 9:00pm | |
Those and a few measured jigs and you'd be set. http://www.rverscorner.com/tongueweight.html
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Patrick
Newbie Joined: 19 April 2008 Location: Vancouver Status: Offline Points: 5 |
Post Options Quote Reply Posted: 22 June 2011 at 9:19pm | |
Cool!
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Romeo
Senior Post God Joined: 16 November 2008 Location: Canada Status: Offline Points: 3033 |
Post Options Quote Reply Posted: 22 June 2011 at 9:38pm | |
You do realize our cars can have northward of 1200 ibs on each axle? Not too many bathroom scales can take that. Hehe. Will look in to David's link though, would be really nice to set up 20% on each front wheel and 30% on each rear wheel. |
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Never shift into reverse without a back-up plan.
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Bassman
Senior Post God Sir Brian Joined: 12 February 2007 Location: Canada Status: Offline Points: 2501 |
Post Options Quote Reply Posted: 22 June 2011 at 9:49pm | |
VCMC I think has one, or UBC...either way there is one we could find as a club night and weight our cars...I had mine done
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Brian (Bassman)
86 GT Fastback 3.2L 2013 Mazda3 Sport GS SkyActive [IMG]http://i170.photobucket.com/albums/u243/Bassman68/BassmanSignature.png"> |
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Patrick
Newbie Joined: 19 April 2008 Location: Vancouver Status: Offline Points: 5 |
Post Options Quote Reply Posted: 22 June 2011 at 9:54pm | |
Yes, I realize that. Did you look at Allan's link?
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Romeo
Senior Post God Joined: 16 November 2008 Location: Canada Status: Offline Points: 3033 |
Post Options Quote Reply Posted: 22 June 2011 at 10:33pm | |
'Aye, I did. But you'll also note that there IS going to be a worse accuracy rating that way. Now, compound inaccuracy for the left-front, then inaccuracy for the right front, on a fairly light section of the car. I think I'd just save up, and actually get the measuring devices. Hell, the first one on that racing junk was $600. Expensive? Yes. Useful for both autocross and off-roading? Definitely. |
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Never shift into reverse without a back-up plan.
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AllanJ
Senior Member Joined: 28 July 2010 Status: Offline Points: 254 |
Post Options Quote Reply Posted: 22 June 2011 at 10:41pm | |
If you had the right suspension pieces (adjustable ride height at each corner), then you could corner balance your cars with the driver's weight in the seat. This is not left/right equality. This is making the crossweights come out fairly equal by adjusting the ride height on a particular corner so the weights would be like this: Left front + Right rear = Right Front + Left Rear Then you do your 4-wheel alignment. This procedure will make your car respond equally left/right. |
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Romeo
Senior Post God Joined: 16 November 2008 Location: Canada Status: Offline Points: 3033 |
Post Options Quote Reply Posted: 23 June 2011 at 12:18am | |
I do have coil-overs for the rear, not for the front yet though. Would be nice to move the weight around as much as possible though to sort've "set it neutral", or as close to as possible. That would be the exceptional of matching the weight on both sides of each axle.
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Never shift into reverse without a back-up plan.
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Bassman
Senior Post God Sir Brian Joined: 12 February 2007 Location: Canada Status: Offline Points: 2501 |
Post Options Quote Reply Posted: 23 June 2011 at 7:18am | |
Just get lowering springs and put on KYB's...it's a Fiero, we don't have all the options to adjust, and it really makes a difference with R-Comps, that's where if you want a autox car you should put your money into...I'll still beat ya...lol |
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Brian (Bassman)
86 GT Fastback 3.2L 2013 Mazda3 Sport GS SkyActive [IMG]http://i170.photobucket.com/albums/u243/Bassman68/BassmanSignature.png"> |
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Romeo
Senior Post God Joined: 16 November 2008 Location: Canada Status: Offline Points: 3033 |
Post Options Quote Reply Posted: 23 June 2011 at 8:49am | |
I lack the finances to constantly replenish ultra-soft slicks. Coil-overs are really cheap and easy to do. And while I will concede that the Koni's are a touch expensive, like the K&N for my truck, at least it's just a one-time expense. And the Fiero can be adjusted quite a bit. I noticed with the Konis that they're grooved in both bolt holes, so if swinging the bottom out doesn't net you enough camber, you can tilt the top in as well. Caster is still an issue, but Colby managed a work-around for that too. |
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Never shift into reverse without a back-up plan.
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Bassman
Senior Post God Sir Brian Joined: 12 February 2007 Location: Canada Status: Offline Points: 2501 |
Post Options Quote Reply Posted: 23 June 2011 at 12:14pm | |
You still need driver skill...and my car is proof that the best investment is tires, you could run OEM suspension with R-comps compared to what you want to do and the R-Comps would win plain and simple Now having what you are doing just adds to a performance feel...but you still need skill...Joking with ya buddy...lol |
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Brian (Bassman)
86 GT Fastback 3.2L 2013 Mazda3 Sport GS SkyActive [IMG]http://i170.photobucket.com/albums/u243/Bassman68/BassmanSignature.png"> |
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Romeo
Senior Post God Joined: 16 November 2008 Location: Canada Status: Offline Points: 3033 |
Post Options Quote Reply Posted: 23 June 2011 at 2:50pm | |
Oh, I'm fully aware that I am nowhere near your level, nor do I believe that the suspension will make the same level of difference as the tires will. However, when I finally do get good enough to warrant them then I'll still have the suspension and the tires. Well, good and serious, because as it stands, I'm also not really concerned with winning. It's hard to take my odds seriously against 100% race spec BMWs and Honda S2000s in a streetable commuter car from the mid-eighties. |
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Never shift into reverse without a back-up plan.
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Patrick
Newbie Joined: 19 April 2008 Location: Vancouver Status: Offline Points: 5 |
Post Options Quote Reply Posted: 23 June 2011 at 3:17pm | |
That's exactly how I feel, which is why I expressed myself Here with these comments...
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Romeo
Senior Post God Joined: 16 November 2008 Location: Canada Status: Offline Points: 3033 |
Post Options Quote Reply Posted: 23 June 2011 at 3:37pm | |
Haha, exactly. Short of dropping race-spec parts in myself, I recognize that I'm already doomed to fail, so I might as well just enjoy my car in street form.
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Never shift into reverse without a back-up plan.
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Patrick
Newbie Joined: 19 April 2008 Location: Vancouver Status: Offline Points: 5 |
Post Options Quote Reply Posted: 23 June 2011 at 3:53pm | |
Yeah, I don't want to limit how much I enjoy my car 99% of the time just so it's "legal" for a particular class the 1% of the time it's on the track.
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Bassman
Senior Post God Sir Brian Joined: 12 February 2007 Location: Canada Status: Offline Points: 2501 |
Post Options Quote Reply Posted: 23 June 2011 at 4:32pm | |
Tris...not comparing driving levels, just a point that drivers skill not matter the condition of the car is the main difference, ask Allan after his driving coach took his car for a spin...lol, let's say Allan was sweating a bit...lol
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Brian (Bassman)
86 GT Fastback 3.2L 2013 Mazda3 Sport GS SkyActive [IMG]http://i170.photobucket.com/albums/u243/Bassman68/BassmanSignature.png"> |
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Romeo
Senior Post God Joined: 16 November 2008 Location: Canada Status: Offline Points: 3033 |
Post Options Quote Reply Posted: 23 June 2011 at 4:42pm | |
Oh, I know. But still, moneys can't buy skill. But they can buy go fast stuff that lasts, so when the skill level goes up it affects an overall faster vehicle. |
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Never shift into reverse without a back-up plan.
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