More cool stuff from M7......And you asked for it

To satisfy the masses.. We decided to make a control arm system that would retain the stock arms but give you
better control of the suspension movements. The stock arm has a hexagonal shaft that needs to be converted to a
round shaft. The steel shaft fits snugly over the stock part, and the threaded hole in the part locks the two pieces
together with a countersunk screw. For superior lubrication we are using a Teflon impregnation of the part.

Delrin and self lube bronze bushing is used in the main body bushing, replacing the squishy imprecise
stock unit for better control of your camber, caster, toe and better up and down movement (arc).

This uppgrade is taking the the suspension to the next level of refinement.......Enjoy

Price: $ 249.00

For purchase please call...

peter horvath
562-712-3270




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Lightest and fastest in SoCal

 

Now you're talking!

Nice, precise application of changing just the problem bits.

I do hear that it is really hard to replace this particular bushing though.
Should I try it myself, or take it to the shop?

 

not to crap on your parade, but Powerflex makes a similar product for considerably less $. A tough polyurethane outer and a nylon inner.

http://www.promini.com/images/produc...ControlArm.jpg

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""the onus of proof is on he who asserts the positive."

 

John - you're crapping in the wrong area.
Delrin/bronze bushings are superior to polyurethane when you're looking minimal excursion and maximum stability at the cost of NVH, so the price point is appropriate for the major-enthusiast/Racer crowd. Nylon is more compressible and less self-lubricating than Delrin, and Delrin's cost is proportionally more because of it's more complex chemical structure.

Nice product, Peter! Any toying with offset bushings?
Ryan

 

>>John - you're crapping in the wrong area.
>>Delrin/bronze bushings are superior to polyurethane when you're looking minimal excursion and maximum stability at the cost of NVH, so the price point is appropriate for the major-enthusiast/Racer crowd. Nylon is more compressible and less self-lubricating than Delrin, and Delrin's cost is proportionally more because of it's more complex chemical structure.
>>
>>Nice product, Peter! Any toying with offset bushings?
>>Ryan


Eh, im with john on this one. If you're ballsy enough to go to delrin, you should be ballsy enough to go for tubular arms. This is an interesting solution but it's still going to ride too harshly for the street in my opinion.


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Cheese

 

one shortcoming of the stock bushing is that is uses the compliance of a rubber center (vulcanized to a steel shell) to mangage the rotation of the control arm (normal suspension compression/extension) and the off-axis loading (due to braking/acceleration/fore-and-aft forces)

what the aftermarket solutions both do is substitue a rotation bushing to manage the rotation action (suspension movement). The Powerflex then uses the much stiffer than rubber but still compliant polyurethane for the off axis load control, while the M7 uses a nil compliance delrin.

M7 would be great for the track, I'm sure, but for the street might seem a bit rough

 

yes this is a shop job, unless your mechanicaly skilled and know your way around the MIni

The Poly bushings are ok but they still give, and to top it of sqeek. The m7 system utilizes the Delrin outer shell
with a self lubricating bronze bushing as the inner part, many people has told me that it's smother over bumps and
uneven surfaces as there is basicaly zero resistance in the up/down movement of the arm.

peter

 

That's right Peter, the control arm articulation will have less resistance than stock, due to the bushing design, however NVH will be dramatically increased due to material choice. Like I said in my above post - this is best for the track, or very smooth roads (like The Dragon!)

Cheese - Wimp! In terms of value, doing just the bushings is the majority of the improvement in terms of steering and suspension resolution. Installing lighter/stronger control arms is just icing on the cake. If you want handling precision, you'll have to pay the price for it (NVH).

 

Im a wuss alright. I have enough NVH problems with this car :smile: BTW, NVH can/does effect reliability, especially in critical places... Track junkies enjoy, this isn't for me :smile:


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Cheese

 

Sorry Surfers, those bearings wouldn't last a week on our Eastern roads that eat alloy wheels for lunch. They wouldn't last jlm a day where he hangs out.

I'm looking forward to doing the poly bushings when I do the front bar.

So, what r u running for a front bar Peter? I'm taking a close look at Ireland's offering (2b).

 

Honestly guy's......

It's not bad at all (NVH) your exhaust or CAI makes more of a racket and for vibration and harshness, low profile
tires is way worse.......Honestly

The most important thing is....your car will perform better with more precission and feel....and that's what counts.

peter

_________________
Lightest and fastest in SoCal

 

H-sport all the way