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So Weezl, what is your price on the brace? Also, do you have a pic of one?
J/W |
I just talked to him, he said 250+shipping. also may include powder coating in gloss black.
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weight transfer is great when drag racing you want the weight in the back for traction but if your setting up the supra for drifting then you should probly lose as much weight as possible
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Well, I want a Supra to take down Highway 101 on the west coast next summer. I think all the twists and turns might flex he frame a little too much. I'm going to have the top off, so I was thinkin' a brace would be excellent for this situation. Thanks. I'll get hold of Weezl once I actually own a good running Supra. :)
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I think unless you wanna turn your car into a drag car, not a tidy, suprisingly quick(to ppl who hate "Jap crap") everyday driver. For those looking for a bit of go on the streets, fork out a bit of coin on the engine and maybe lightened running gear. Pulling all the rest of the bits out like heavy seats and electric motors is a waste of time for ppl wanna street car. it is supposed to be a luxsury sports car. I don't wanna get rid of all that if i wanna drive it everyday. These cars are heavy, so what! theyre supposed to be. That is why they have tuff engines.
If you wanna drag car, chop away! |
about your lightening the car. you are right the mk 3 has traction problems. some affiliated with weight in the back....BUT the main cause is the assemly of traction planting components. first the bushings. there is so much flex in those subframe and control arm rubber it takes more weight to get better traction. and two the chassis. easiest fix is to weld conectors to the front and rear subframes.second fix is to replace your bushings with urithanes..some are available.. but youll have to reserch. i had put a post up of some upgrades not available any where.....ie chromoly subframe replacements w/ chomo control arms and spherical bearing ends....solid. a stock 200 hp car can utilise it just as well as a 700 hp car. although the more horsepower and torque you supply the more noticable.around 3k you can pick up some suprising times and loose almost 300 lbs. being as rigid as it is it isnt quite fessable for a country driven car. it substantialy stiffens EVERYTHING up... including the ride
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one thing about drastically changes the weight of the flywheel and size of pullys is that it will make you car run differently and you have to be careful. the flywheel is the rotating mass that keeps the crankshaft and whole engine moving inbetween strokes so if you lighten this you won't have as much mass rotating.. it'll change the balance of the engine.
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another change you could make to help with traction, weight.. anything is relocating the battery to the spare wheel well since I'm gonna assume you're removing that to save weight.. relocating the battery to the trunk will give you at least another 20 pounds right over the rear axle.. where you want weight
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good info to know :)
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Therefore in most cases it won't affect the ballance if you use a lighter flywheel assuming it is prebalanced. It will change the critical frequency of the assembly though but most engines never hit their critical frequency anyway. Besides the decrease in overall weight a lighter flywheel will make the engine spool up much faster. Faster engine spool = more hp. Does anyone know the weight of a stock flywheel? |
Engineering
I'll admit that in previous cars i've eliminated weight to try to augment the overall performance. The weight I eliminated usually came with drawbacks, like having to shift while using both hands to pray i dont get a flat (because the spare and hardware was removed), or hoping that i dont pick up more than one girl at a time (because the rear doors were gutted and rear seats removed, and A/C system eliminated).
I'll say this for the supra, if you want to increase performance, horsepower is not hard to come by. Maybe you want to augment the motor, trans, or rear end? Perhaps just a high flow air filter? A high flow (legal) cat and less restrictive exhaust all together would help the base motor run better and stronger. After your pedigree restrictions in intake and exhaust have been aleviated, you're ready to tune. Find a stand-alone engine management system and work out any factory fuel curve kinks you may have. Before you go replacing hard parts on ANY car to try to get more out of it, start putting quality fuels and lubricants in it. Just like your body, you need to treat your car well. Eat healthy foods, feel better. Run quality fuels, get better milage and performance. Avoid fuels spiked with ethanol, as alcohol yields far less BTU's than gasoline, and as it damages fuel systems not designed to run alcohols. Use a synthetic motor oil, or at least a branded petroleum quality oil. In short, you get out what you put in. |
"get the underdrive pulley for the crank (it's lighter than stock too), ect..."
Plz explain what you mean... thanx |
balance
Don't forget the near even balance front/back of the supra either. The ratios are great because of the weight on the steer tires and the traction tires.
A wider stance and endless power options for this wonder car make weight a minor issue. But the seating could be lightened and allow for minor weight lessoning while maintaining balance... |
what???
The MK3 supra has McPherson struts in all four corners. and on the topic of sub frame connectors, you really have nothing to connect them to. if you want to eliminate flex then you need larger sway bars, a 6 point cage, and ACTUAL strut braces. That cheap crap you see in magazines and movies does nothing. Actual strut braces must be triangulated and have gussets placed on the bends for structural support. welding seams works as well and realistically for any other cars that you do put sub frame connectors on, remember one thing, bolt on sub frame connectors are absolutely useless. all the tension is applied to the bolts. If you want to modify a chassis the only way to go is welding and fabrication.
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I've removed quite alot of weight from my supra (even my rear window screen wiper and motor) i'm hoping it will pass a WOf without it.. Also removed sound deadener rear seats and carpet. Removed plastic from inside roof tyre and rear panels. have yet to see how much it has changed the handling or performance of my car as it is in the shop getting a turbo rebuild. 'm wanting someone to do a 1/4 mile time before and after weight reduction to see how much performance is actually gained from doing this.. i've been told by my girlfriend and everyone elce that it will do nothing but i want to prove they are wrong for once so please anyone out there who has gained an increese in acceleration and handeling from weight reduction with time slips please show
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"The MK3 supra has McPherson struts in all four corners."
Are you positive on this? You might want to take a closer look. My MK3 (86) has dual 'A' arms with coil over shocks up front and dual link lowers with 'A' arm on top and coil over shock in rear. |
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No that sounds about right, I was talkin to this machinist today about it and said about the same thing. And I trust his words cus he worked on F1 engines and stuff for years |
Chromo???
well if you are going to use 4130 chromo which i assume is what you mean your gunna be spending somewhat on the lines of 1500 bucks just on tube alone no labor, not to mention your gunna need to get it heat treated. How many places are going to have an oven and an oil bath large enough for that, that is somewhat affordable (none) and the only way your going to get any benifit from 4130 chomo is if you get ti heat treated and normalized. If you want a tube chassis you should use plain old 1026 DOM.
And realistically i wouldn't even cut the weight out of the car. i used to have a mk2 that had a couple of car fires and there was litterally no interior at all, because it was all burnt out. and all it really did for me was killed the ability for the car to make a turn with out loosing traction in the back. so unless you can cut out the weight in an even distribution i really wouldn't recommend it. but hey if anyone does let me know I always wanted to know how fast it would be in a strait line after cutting tons of weight. haha |
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