How important is upgrading the bushings on a 944 track car?
#1
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How much improvement in handling will bushings make on my 944 if I currently have this setup.
350lb front springs with adjustable Koni's
30mm hollow torsion with adjustable koni's
26.8mm front swaybar
18mm rear swaybar
-3 degrees front camber
-2 degrees rear camber
15x7 phone dials with 225/50/15 Toyo RA1
350lb front springs with adjustable Koni's
30mm hollow torsion with adjustable koni's
26.8mm front swaybar
18mm rear swaybar
-3 degrees front camber
-2 degrees rear camber
15x7 phone dials with 225/50/15 Toyo RA1
#3
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rear bushings are often best done when you do the t-bars. The rubber is stiff there so it is not that bad. What you give up is some added toe change when braking. The 944 rear suspension flexes torward toe-out underbrakes and the less rubber the less this effect. To combat you dail in static toe-in. With all metal for example you can pull out much of the that toe-in. Of course toe-in cauese minor scrubbing when going straight thus wearing tires and slowing the car.
In the front the rubber bushings again allow suspension movement. Thus your aligment settings change under cornering and braking loads. Plus you have a bit of slop before things get load up so slightly slower response. If you are running steel front arms then you realy shoudl upgrade to delrin cross member bushings. The stock ones allow the arm to slid back and rub on the cross member too much.
In the end bushings are nice to do when you have things apart, but unless you are racing they won't make much difference.
In the front the rubber bushings again allow suspension movement. Thus your aligment settings change under cornering and braking loads. Plus you have a bit of slop before things get load up so slightly slower response. If you are running steel front arms then you realy shoudl upgrade to delrin cross member bushings. The stock ones allow the arm to slid back and rub on the cross member too much.
In the end bushings are nice to do when you have things apart, but unless you are racing they won't make much difference.
#4
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You know that with the car like that you are pretty close to a spec car. Nor-Cal has just had their first two race weekends with 5 cars at each of the 4 races.
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#5
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Originally Posted by Litespeeds
How much improvement in handling will bushings make on my 944 if I currently have this setup.
350lb front springs with adjustable Koni's
30mm hollow torsion with adjustable koni's
26.8mm front swaybar
18mm rear swaybar
-3 degrees front camber
-2 degrees rear camber
15x7 phone dials with 225/50/15 Toyo RA1
350lb front springs with adjustable Koni's
30mm hollow torsion with adjustable koni's
26.8mm front swaybar
18mm rear swaybar
-3 degrees front camber
-2 degrees rear camber
15x7 phone dials with 225/50/15 Toyo RA1
#6
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I just put in some solid caster blocks and it really sharpened up the the feel of the steering on turn-in. My setup is almost the same as your's except that I have weltmeister sways.
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Originally Posted by PeteL
How is your ride? I am installing the Konis with my stock swaybars and torsion bar. I am using 250# springs...is your ride on the street too harsh?
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Originally Posted by M758
You know that with the car like that you are pretty close to a spec car. Nor-Cal has just had their first two race weekends with 5 cars at each of the 4 races. ![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
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#11
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In the front the rubber bushings again allow suspension movement. Thus your aligment settings change under cornering and braking loads. Plus you have a bit of slop before things get load up so slightly slower response. If you are running steel front arms then you realy shoudl upgrade to delrin cross member bushings. The stock ones allow the arm to slid back and rub on the cross member too much.
How long does the delrin bushing stop the steel control arm from moving toward the cross frame? one season or many seasons? and who sells them? How long do they last in general?
How long does the delrin bushing stop the steel control arm from moving toward the cross frame? one season or many seasons? and who sells them? How long do they last in general?
#12
RL Community Team
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night
day
I don't speak from experience of upgrading the bushings. My only experience is replacing destroyed bushings. That made such a big improvement, I knew that upgrades would be fantastic.
day
I don't speak from experience of upgrading the bushings. My only experience is replacing destroyed bushings. That made such a big improvement, I knew that upgrades would be fantastic.
#13
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Originally Posted by porshaowner
How long does the delrin bushing stop the steel control arm from moving toward the cross frame? one season or many seasons? and who sells them? How long do they last in general?
I got them from Paragon Products, but they were made by racer's edge.
#14
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Originally Posted by M758
They last a LONG TIME. I have had mine in since mid 2003 or so. They keep on trucking and have NEVER given me a problem. I have no intention of replacing them. They were the first set made as far as I know.
I got them from Paragon Products, but they were made by racer's edge.
I got them from Paragon Products, but they were made by racer's edge.
#15
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I use the red weltmeister's at the caster block. They are from the same time frame 2003.
For the t-bar I us black ployurethane bushings. I put these in in 2001 or 2002. They squeak like hell, but are fine otherwise.
For the t-bar I us black ployurethane bushings. I put these in in 2001 or 2002. They squeak like hell, but are fine otherwise.