Dubai944

Are you planning to run some type of undertray?

V2Rocket

in 3 weeks ill be living not too far from you...can i ride shotgun on top of the gas tank?

Van

What is that blue bar next to the tierod?

400hp944

You're killing me Tony. When will we see this thing on the track? Going to make ACS next month?

TonyG

That's going to be part of the tie rod.

They will mate the stock steel rod end to the factory steel tie rod.

TonyG

TonyG

Yes. Full undertray (flat bottom) with diffuser.

The front splitter (not shown in the pics) runs all the way back to the engine cross member.

The rest of the undertray will go from there backward.

But to start, we're not going to run the undertray because it will slow down the setup time considerably. Only once the car is setup will be finish and install the rest of the undertray.

TonyG

TonyG

That's a custom built sway bar with blade ends. You can see it... it's black.

The front end issues are resolved without having to use those rack extension things. It required a completely different front sway bar setup (to get it out of the way).

But the deal with the 996/997 uprights is that they are designed with an angle on the bottom. The A arm has a matching angle. Because of this, the A arms don't run parallel to the tie rod.

TonyG

Jeff Lamb

Tony, since the A arms and tie rods don't run parallel to each other, does this mean your new setup will have a certain amount of "bump steer"? Or, are you saying there is something about the way the 997 uprights have been designed to attempt to remove the "bump steer" effect even though the A arms and tie rods don't run parallel to each other?

Jeff

TonyG

Yes... the bump steer has been figured into the setup where the A arms aren't parallel to the tie rods.

They don't run parallel because the A arms in the 996/997 aren't designed to parallel to the ground.. or to the tie rod. This is because they have a bend in them. They are not straight. And if you look, the bend is at the end, where the upright bolts to the A arm. There's about a 20+ degree angle (eye balling the angle).

This means that the A arm is designed to run at a downward angle (down hill towards the wheel). This puts the tie rods and A arms at different angles and not parallel.

See this example. Note the angle at the tie ball joint.



What counts in the setup of the 996/997 front suspension is that the area around the ball joint on the A arm be parallel to the mating area on the suspension upright. That puts is "centered" in it's travel range.

The tie rod won't be parallel.

But because of this, your ability to change your ride height with your spring length (or spring collar) is limited. The A arm angle to the upright has to be very close to parallel.

And... this is why Porsche has so many different uprights for the 996 and 997.

TonyG

TonyG

Yesterday's update... more small stuff

It's almost time for electrical... woo hoo...

TonyG


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333pg333

Epic! Not sure how you can afford this and all the drinking you seem to do???

Dutch944

Wauw.. With every update you just keep amazing me..

TonyG

It's not about how much you drink. It's about what you drink and who you drink it with.

TonyG

TonyG

It isn't me. I just write the checks.

It's all Vision Motorsports.

TonyG

TonyG

Note... the shocks are just mockup shocks.

The new JRZ's will be installed later this week with the new 2012 997 Cup Uprights

Yeah..... hopefully this thing will run soon...

TonyG