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Old Aug 31, 2004 | 11:59 AM
  #1  
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Default 993 MODIFICATIONS

Need some help....just purchased a 1995 911 coupe. Looking for suggestions for street and DE events with the following:
- suspension
- exhaust
- Interested in 18" ---wheelsize and tire size
- air box systems
- brakes...leave stock

Steve
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Old Aug 31, 2004 | 12:22 PM
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Search and yee shall find.... a lot.
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Old Aug 31, 2004 | 12:42 PM
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contact viperbob and get pss-9 and adjustable sway bars. then you are ready for DE. forget airbox. 18" technology wheels are a nice add...
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Old Aug 31, 2004 | 12:50 PM
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Just my opinion, but here goes:

Suspension: anything from Bilsteins w/ M030 or H&R springs to PSS9 depending on your budget.

exhaust: Robins RSRs to Fabspeed Maxflows depending on your desire for sound

Wheels: wow! many good options. Depends on whether you want forged, multi-piece, etc... Probably 8" in front and 10" in back will work well. Tires should be somewhere in the 225/40 front 285/30 range. Quality wheels can come form: Kinesis, Fikses, Forgeline, HRE, etc...

Airbox system: cut out the side or drill some holes (save your money on other mods)
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Old Aug 31, 2004 | 12:58 PM
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- suspension: PSS-9 or Motons, RS sway bars and better also get monoballs while at it.
- exhaust: Fabspeed Supercups (very loud) or RSR's.
- Interested in 18" ---wheelsize and tire size: 18"x8.5 (235 tyre) & 18x10.5 (275 tyre)
- air box systems: Drill the airbox (or buy used K&N cone filter from me...)
- brakes...leave stock: You can leave stock but get track pads and maybe some cooling.
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Old Aug 31, 2004 | 01:11 PM
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I've done all of these.

- Bilstein HD's with H&R springs
- FabSpeed MaxFlows
- 996 5-spokes with 285/30/18's on the rear
- drilled my air box
- installed Big Reds

I've also installed a C2S split grille and plan a LWF/RS kit soon. Then I'm really done!
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Old Aug 31, 2004 | 01:14 PM
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Originally Posted by Rick Lee
I've done all of these.

- Bilstein HD's with H&R springs
- FabSpeed MaxFlows
- 996 5-spokes with 285/30/18's on the rear
- drilled my air box
- installed Big Reds

I've also installed a C2S split grille and plan a LWF/RS kit soon. Then I'm really done!

Done ?? Yah right........who you kiddin' ??
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Old Aug 31, 2004 | 03:45 PM
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Hey Flying Finn,

Is the reason for 235 front 275 rear (as apposed to 225/285) to decrease oversteer (?)

thanks
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Old Aug 31, 2004 | 03:48 PM
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Alex,

yes, but it raises your ride height....
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Old Aug 31, 2004 | 03:52 PM
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Default really?

Originally Posted by Boris Teksler
Alex,

yes, but it raises your ride height....
really?
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Old Aug 31, 2004 | 04:05 PM
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yes really.

here is a table for your benefit..
width profile rim size ride height (inches)
225 40 18 25.08661417
235 40 18 25.4015748
275 35 18 25.57874016
285 30 18 24.73228346
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Old Sep 1, 2004 | 01:00 AM
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as a sidenote i run two different configs:

autox: to increase oversteer i run 245 (front) and 275 (rear)
track: to increase understeer i run 225 (front) and 285 (rear)

i feel this to be safer for a track setup, but in the tight corners of autox my setup really works! I just wish they made the 275 in a 30 series because i don't like the taller gearing (reduces torque).

Cheers,
Boris
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Old Sep 1, 2004 | 01:13 AM
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Originally Posted by akolodesh
Hey Flying Finn,

Is the reason for 235 front 275 rear (as apposed to 225/285) to decrease oversteer (?)

thanks
As others have pointed out, it's to increase oversteer.

Obviously just a suggestion and based on my preferences. I rather have oversteer than understeer, undrsteer is safer and easier to handle so many folks actually prefer (little) understeer, but that's for you to decide what suits you best.
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Old Sep 1, 2004 | 01:41 AM
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You guys should really not be encouraging newcomers to indulge in mods...
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Old Sep 1, 2004 | 11:33 AM
  #15  
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thanks Kim, Boris and Flying Finn - good to understand the relationship between the widths of front and rear tires
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