Upgrading suspension before new tires?

[986tate]

Does anybody worry about oil starvation with a 200tw tire?
Somewhere L&N says don’t use anything under 300tw

[ike84]

Originally Posted by 986tate

Does anybody worry about oil starvation with a 200tw tire?

Somewhere L&N says don’t use anything under 300tw

If you look at the location of the oil scavenge pumps on the m96 motor, and realize that each valve cover can hold nearly the entire oil capacity of the motor, you'll understand the reason that oil starvation can occur on long right hand (986) and left hand (996) turns. It's the prolonged g forces that are the issue. Slicks help you achieve the g forces needed to accomplish this.

The owners manual actually says to not run racing tyres on these cars. This is the reason why. Porsche knew about this issue from the get go - It's a byproduct of cutting costs to produce the m96 motor during a financially difficult time for the brand (2 scavenge pumps are half the price of 4 lol). They actually offered an oiling mod to remedy this on early 996s sold exclusively in Europe, but that's a different topic.

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[rastta]

Originally Posted by 986tate

Does anybody worry about oil starvation with a 200tw tire?
Somewhere L&N says don’t use anything under 300tw

If your worried about oil starvation in a 986 well sell it and move on. Seriously.

[ike84]

Originally Posted by rastta

If your worried about oil starvation in a 986 well sell it and move on. Seriously.

Why did you take offense to his question? It's a valid one...

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[rastta]

Originally Posted by ike84

Why did you take offense to his question? It's a valid one...

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I didn't take offense. It's a simple fact that these engines require a LOT of work to address oil starvation. The deep sump and baffle help but don't solve the problem. It's a design flaw of the engine and you live with it and if the engine goes it goes.

[ike84]

Originally Posted by rastta

I didn't take offense. It's a simple fact that these engines require a LOT of work to address oil starvation. The deep sump and baffle help but don't solve the problem. It's a design flaw of the engine and you live with it and if the engine goes it goes.

Ahhh I get your point. You are absolutely correct. I wish someone would make the 2 stage scavenge pump for bank 2, I would think every racer would install one and all of this accusump / deep pan nonsense would go away.

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[Topless]

Originally Posted by 986tate

Does anybody worry about oil starvation with a 200tw tire?
Somewhere L&N says don’t use anything under 300tw

Not really an issue for AX events because you don't have sustained hi G corners leading to a deep braking zone. Tracks like AAA Speedway Fontana were famous for taking out 986/996 motors due to the banked Roval followed by turn 3 which was a 90* Left. A perfect storm although I ran about 1000 laps there in my 986 without a starvation issue. There are mitigating techniques.

As to the OP, camber plates and Ohlins RT coilovers are probably the best bang for the buck to control ride height, camber, maximize contact patch and tire wear. I agree that Falken Azenis 660 or RE71RS are probably the top choice for a great street/AX tire. With these mods I suspect you will be super happy with the car. If you are in greater LA and need an experienced tech to get you sorted, I know a guy.

FWIW I have GT3 Arms and Ohlins RT suspension on my car and it is tits. I recently relocated to the PNW and ran my 1st AX with the local PCA for fun. As I lined up for tech I surveyed a field of GT3s, GT4s, Turbos, Turbo S and figured I brought a knife to a gunfight with my lil 2.9L Cayman on Super Sports.

As it turned out, we got quite a bit of rain and even a bit of snow in the AM. This was a great HP equalizer and my tires were decent for conditions. In the end I managed 1st in class, 1st on corrected time, and 1st overall with TTOD Sunday. Sometimes you just get lucky but the right tires and suspension helped a lot.

[Robert986]

Originally Posted by Topless

Not really an issue for AX events because you don't have sustained hi G corners leading to a deep braking zone. Tracks like AAA Speedway Fontana were famous for taking out 986/996 motors due to the banked Roval followed by turn 3 which was a 90* Left. A perfect storm although I ran about 1000 laps there in my 986 without a starvation issue. There are mitigating techniques.

As to the OP, camber plates and Ohlins RT coilovers are probably the best bang for the buck to control ride height, camber, maximize contact patch and tire wear. I agree that Falken Azenis 660 or RE71RS are probably the top choice for a great street/AX tire. With these mods I suspect you will be super happy with the car. If you are in greater LA and need an experienced tech to get you sorted, I know a guy.

FWIW I have GT3 Arms and Ohlins RT suspension on my car and it is tits. I recently relocated to the PNW and ran my 1st AX with the local PCA for fun. As I lined up for tech I surveyed a field of GT3s, GT4s, Turbos, Turbo S and figured I brought a knife to a gunfight with my lil 2.9L Cayman on Super Sports.

As it turned out, we got quite a bit of rain and even a bit of snow in the AM. This was a great HP equalizer and my tires were decent for conditions. In the end I managed 1st in class, 1st on corrected time, and 1st overall with TTOD Sunday. Sometimes you just get lucky but the right tires and suspension helped a lot.

I can verify that's a good combo, I also have the GT3-LCA/Öhlins R/T set on 5-7, all solid bushings. CUP2 tires. Sorry for maybe deviating in the thread but may I ask what anti roll bars you run & what settings on the Öhlins? I run factory anti roll bars (986s)

[Gilles]

Originally Posted by Topless

As it turned out, we got quite a bit of rain and even a bit of snow in the AM. This was a great HP equalizer and my tires were decent for conditions. In the end I managed 1st in class, 1st on corrected time, and 1st overall with TTOD Sunday. Sometimes you just get lucky but the right tires and suspension helped a lot.

This is an amazing story, congratulations!
How do you like the PNW..?