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Eye of the Toiger
 
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Join Date: Oct 2005
Location: Sydney, Australia
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Anyone fit a intercooler under a ducktail

Anyone fit a intercooler under a ducktail, I want the 73 look with the turbo donk!

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http://www.aircooled.com.au

1973 911 RSR clone powered by 77 3.0 turbo
Old 08-30-2010, 03:56 AM
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Turbofrog
 
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There are couple of threads here with pics. Try 'no wing' for search word? I'm getting either 74--> plain decklid or ductail in couple of yrs hopefully. My IC is the one of from Turbokraft that will pop up in your search.
Old 08-30-2010, 04:41 AM
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I don't believe a duck-tail will work with an external intercooler...it's gotta fit somewhere, unless it's an internal unit to the car, or an earlier 930 sans IC.

Of course with a lot of $$$ and composites, you can do a lot of things...
Old 08-30-2010, 01:38 PM
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matty74, There is a good deal of room in the engine compartment for an intercooler that does require a turbo tail. All it takes is Fabrication
Old 08-30-2010, 03:02 PM
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OFF THE BOOST PIPE NOW...
 
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Didn't EP Slick install one in his car? Check under his screen name.
Old 08-30-2010, 04:10 PM
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Crotchety Old Bastard
 
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You can trim down a stock 930 intercooler or fab up a custom unit. Here are pictures of both under ducktails.




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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 08-30-2010, 06:40 PM
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Quote:
Didn't EP Slick install one in his car? Check under his screen name.
Yep, EP did exactly that on his old 930. I am sure there is a pic on here somewhere.
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Old 08-30-2010, 07:16 PM
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We built the intercoolers for EP's car, Brian's car, and Bob's car.

EP's setup was the least efficient, but he wanted the stock SC/Carrera decklid. I don't recommend this, and we won't build another one like it.

Brian's white car (below) was the first intercooler of its kind we built. His car was a 1974 chassis with a 3.0L Turbo Carrera engine, still CIS-injected.





Custom intercooler, new custom 3" muffler, re-tune fuel system with prototype adjustable WUR. Gain of 47.3hp and 71.3tq at the same 1.1bar, 91-octane.

TurboKraft just completed Bob's car, a clean 1976 3.0L Turbo Carrera with our EFI conversion package. Bob did the whole EFI install himself and had a local shop in FL do the initial tuning. After we fixed some programming issues, we tuned it up on the dyno to get a baseline before building the intercooler. 272.5hp/252.0tq @ 0.8bar, 91-octane.




Made the new intercooler, re-dyno the car and tweaked the fuel & timing accordingly -- 295.3hp/288.5tq at same boost, same fuel. Nice gains from an intercooler at stock boost pressures.

Bob had a target of 300rwhp, though, and these are only 6.5:1 compression engines, so more boost was in order. At 1.1bar: 350.1hp/337.1tq.


If you want an intercooler like this, too, we can help you.
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Old 08-31-2010, 11:22 AM
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The OP was maybe thinking about putting one IN the ducktail to catch more air?

S/th like this?



Old 08-31-2010, 01:43 PM
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Eye of the Toiger
 
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Chris I will definitely be in contact re one of those intercoolers when engine build phase starts

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http://www.aircooled.com.au

1973 911 RSR clone powered by 77 3.0 turbo
Old 08-31-2010, 05:08 PM
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