924Board.org

[Rasta Monsta]

You all know I hate to talk about myself, but. . .

Shaggy gets his first track time of 2007 on Friday. The weather is cooperating, should be sunny and in the 60s. . .so we'll find out what the new brakes, wheels, tires & sway bars can do!

Oh, and it's the non-chicane configuration, so we should be well into 5th before braking for the old 3rd gear Turn One!


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Toofah King Bad

• WeiBe (1987 924S 2.5t) - 931 S3

[Rasta Monsta]

Well, the DE was awesome. I was conerned about the front straight speeds and braking being stressful, but concluded that slowing for, and maneuvering through the chicane is more so. . .it really breaks up the character of the rest of the track.

The tires and brakes were outstanding, and Shaggy ran well. There was a slight issue was with handling. . .I have a little too much push due to staggered tire sizes. So, before the next track day, the old sway bar will go back on the front, and I can see if the balance improves.

It also seemed as if I had a fuel delivery problem of some sort. WHen I shifted into 5th, all acceleration ceased, and the car cut out a few times at 6k+ in 4th. So, I am changing out both fuel pumps & accumulator this weekend. Next DE is this coming Tuesday, but it looks like rain, so I don't have a lot of interest. Next after that is 4/29, which will be a GO, weather permitting.

Damn, this is fun!
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Toofah King Bad

• WeiBe (1987 924S 2.5t) - 931 S3

[-nick]

What front swaybar are you running currently? You could just increase your rear bar with the 19mm 968 part to get rid of the push. They were $141 when I picked mine up a few years ago. The car felt pretty well balanced at a/x but I haven't gotten it out to a DE yet. Fooling with tire pressures & a pyrometer could help too.

The fuel cut is weird. Isn't the rev limiter in the fuel pump relay on our cars? You could bridge the relay and try a 6k+ run to see if you can repeat the problem. Maybe the limiter is kicking in early.

Accumulators are usually good unless they're visibly leaking. Fuel pump is definitely a possibility.

Sounds like great fun though
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1980 931S
15psi boost, MS-II, EDIS, 951 IC, custom intake, Ford 5.0L throttle body, Forge BOV, WB o2, G31 w/LSD, 964 wheels, 968 rear sway, Bilsteins, 200# Welt. springs. A laptop, and a partridge in a pear tree.
1991 964 C4 Cabriolet

[Rasta Monsta]

Front sway bar is the optional 23, rear is the optional 14. I am considering putting the original 21mm unit back on the front. Is this the 19mm rear you are using?

As for the cutting out, it's definately a starvation problem. . .cutout doesn't occur in lower gears. I also just learned my fuel filter is in backwards, so that likely isn't helping.
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Toofah King Bad

• WeiBe (1987 924S 2.5t) - 931 S3

[-nick]

^ yep, that's the one. It went up a whopping $8! Bolts right in very easily. I have mine set to the middle stiff setting.

Yikes! replace that filter!
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1980 931S
15psi boost, MS-II, EDIS, 951 IC, custom intake, Ford 5.0L throttle body, Forge BOV, WB o2, G31 w/LSD, 964 wheels, 968 rear sway, Bilsteins, 200# Welt. springs. A laptop, and a partridge in a pear tree.
1991 964 C4 Cabriolet

[Rasta Monsta]

Um yeah. . .it never would have occured to me (or the PO, apparently) that flow through that damn thing would be toward the rear of the car. . .



Anyway, thanks for the suggestion, I ordered the rear sway bar. We'll see how it goes, and I still have the option of softening the front later on down the line. . .
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Toofah King Bad

• WeiBe (1987 924S 2.5t) - 931 S3

[924RACR]

That's the same rear bar I'm using, I find it an excellent match for the 23mm front bar (I'm still using that as stock). Of course I've changed my spring rates and t-bars, but the balance is still very much as per stock excluding the rear bar change. I rarely find myself wanting it at full stiff! I feel it's an excellent value.
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Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype

[Rasta Monsta]

So Vaughan, you are using the middle adjustment as well?
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Toofah King Bad

• WeiBe (1987 924S 2.5t) - 931 S3

[924RACR]

Yes.
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Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype

[924RACR]

Yes.
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Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype

[Rasta Monsta]

[Paul]

Have you checked your overboost switch and the wire that's attached to it?

You are correct about the accumulator, when you remove the test screw, no fuel should leak out.
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White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.

[Rasta Monsta]

19mm bar is installed, and my first impressions are AY CARAMBA. Balance at last! Car responds better, turns in quicker, and feels nice and nimble.

We have a PCA "Arrive & Drive" tomorrow morning, so I'll get to work it out a bit more, but so far, GREAT purchase.
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Toofah King Bad

• WeiBe (1987 924S 2.5t) - 931 S3

[morghen]

so...what do you have installed now on the front and on the rear 21F and 19R ?
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Supercharger and EFI kits
https://www.the924.com

[924RACR]