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Crotchety Old Bastard
 
RarlyL8's Avatar
 
Join Date: Jan 2000
Location: Huntsville, AL
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The "key" is to kow your car and your own limitations. The stock SC brakes could haul the red rocket down from 145 to 0 very quick one time. You don't do that multiple times on the street back to back.
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 02-14-2014, 04:11 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #41 (permalink)
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I agree. My 1976 930, with stock breaks, responded well to heavy breaking at speeds over 120mph. Repeated breaking on the track would probably show heat soak issues and need to be addressed with additional cooling or larger breaks.

Rahl
Old 02-14-2014, 11:56 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #42 (permalink)
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Sounds somewhat similar to what I am running power wise. The boys at Rothsport massaged my 3.0L Turbo from a 77 930 to 350 hp. It is pushing a brake and suspension modified 73T with a weight of about 2200 lbs (without driver). It's driven through a reinforced 915 gearbox with custom gears 2-4, and retaining stock 1 and 5. It is wicked fun to drive, partly because it feels exactly like a death machine should. I have emailed Chris at TurboKraft and can confirm he is a solid and informative fellow. Jeff Gamroth at Rothsport is also a noted mad scientist and has done some wicked builds as well. I give him a solid recommendation.
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77 930 Turbo powered 1973 911T
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Old 02-15-2014, 12:41 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #43 (permalink)
Chain fence eating turbo
 
Join Date: Dec 2008
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Ugh.....not everyone has to track their 911. How many classic American muscle cars had over 5-600hp with drum brakes and maybe pulled 0.5G in the cornering department and never wrapped one up in a crash??

Many have including myself.

Don't think the OP cares to hear of another "upgrade the chassis to match hp goals".
Old 02-15-2014, 12:46 PM
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Mr. C
 
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As an 87 Carrera owner: " Sell the Carrera....and just buy a 930. "

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Last edited by SAY - 642; 02-16-2014 at 07:40 AM..
Old 02-16-2014, 05:36 AM
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Unsafe at any speed
 
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Great looking car, Mr. C. I love my Carrera, have had it for almost 15 years, through thick and thin, and my emotional attachment to it prevents me from actively seeking a replacement. That's why I'm considering modifying it. But I agree, trading up to a 930 would be the smarter move. I'd do it if a GP white with red interior car was available locally, and I could get strong money for my car to make it happen. In other words, if it were really easy, I'd do it.
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87 Carrera Coupe
Old 02-16-2014, 10:24 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #46 (permalink)
 
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Quote:
Originally Posted by SAY - 642 View Post
As an 87 Carrera owner: " Sell the Carrera....and just buy a 930. "

Yea your Carrera is faaarrrrrr from stock..
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Rey....86 930 "the Mistress"
Old 02-16-2014, 11:09 AM
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I would hot rod the Carrera. Everything is there except the motor. Keep the rims, go up to 275's on the rear and 245's on the front. Up grade the brakes down the road if you feel you need to.
If you sell, you'll take a hit on your car, and pay a premium for a turbo with unknown issues, I mean opportunities.
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Harold
'79 930/DP935
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Old 02-16-2014, 02:31 PM
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Quote:
Originally Posted by gumba View Post
I would hot rod the Carrera. Everything is there except the motor. Keep the rims, go up to 275's on the rear and 245's on the front. Up grade the brakes down the road if you feel you need to.
If you sell, you'll take a hit on your car, and pay a premium for a turbo with unknown issues, I mean opportunities.
Agree, a G50 Carrera is a good starting point IMO, Efi, Cams, high flowing heads etc. With just 0.5bar you will make 360hp at the crank, 0.7bar is 400hp (according to Protomotive), you can run this with the stock engine internals and has been done many times on this board. It's headers, turbo, wastegate, oil lines, intercooler, 951 injectors, RRFPR and Chip (stage 2) from protomotive. I just run .5bar and the car is quick, I have run this set up since 2008. I have a Z435is (I know...) and the 911 would walk it.
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Old 02-17-2014, 04:33 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #49 (permalink)
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