Twin Turbo NA conversion while keeping orig. deck spoiler
#1
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Has anyone seen the April '05 Excellence yet? They've got an article about a Sleeper 993 - a wingless twin turbo. See page 104. It was done by Turbokraft in Phoenix on a '95 993 C2. The conversion lowered the compression ratio from 11:1 to 8.5:1, includes twin Garret GT-series ball bearing turbos by while retaining the original decklid and retractable spoiler. Pretty stealth, eh? 4.0 psi is at about 320 hp; 9.0 psi is at about 370 hp; 12.0 psi is at about 390-395 hp. I wonder what the conversion specs would be on the '96-'98 cars with Varioram? . . . or would that just be a non-issue by the time you do the conversion? They say parts alone are about $17,000, and it's about $30,000 installed. Anyway, interesting article . . . and food for thought.
OK, OK . . . putting on the flame suit now . . . waiting for all the "just sell and buy a real 993 TT". I find it interesting for those who want the 2 wheel drive, non wide-body car, and original look w/o a rear wing . . . and for those who must have an open top.
Scott
OK, OK . . . putting on the flame suit now . . . waiting for all the "just sell and buy a real 993 TT". I find it interesting for those who want the 2 wheel drive, non wide-body car, and original look w/o a rear wing . . . and for those who must have an open top.
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Scott
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#3
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Just got to read the article about the red wingless turbo, looks fabulous! The air-to-water intercooler is a great idea, well done, and for anyone who thinks the 993Turbo spoiler ruins the classic 911 look, it's well worth it.
Regards,
Chris
Regards,
Chris
#4
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Scott, you do not want Varioram with a turbo. You do not want to be pressurizing different lengths of intake piping. You want this as short as possible from the turbo to the valve. Reality dictates a throttle body and a couple of things in the middle though. The TT uses essentially a '95 intake setup. And there is a 2wd conversion kit for the TTs so that you can get that feeling. Just no narrow bodies or topless ones.
#5
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Yup I read that article. My overall impression was that it was a monumental waste of money. Didn't he spend like $30k on the turbo upgrade? For a Frankenhacked car that doesn't even have the performance as a cheaper stock 993TT? IIRC they don't really know what kind of power it's capable of but I thought it was less than a stock TT (did they even turn the boost up or were those just "estimates"?). The whole thing just seemed totally illogical to me.
#7
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Originally Posted by viperbob
Scott, you do not want Varioram with a turbo. You do not want to be pressurizing different lengths of intake piping. You want this as short as possible from the turbo to the valve. Reality dictates a throttle body and a couple of things in the middle though. The TT uses essentially a '95 intake setup. And there is a 2wd conversion kit for the TTs so that you can get that feeling. Just no narrow bodies or topless ones.
Got it re: the Varioram issue.
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Does that mean this 993 cab with Protomotive TT conversion is just a
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I hear that he's runnin' at 570 hp.
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Scott
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#10
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Originally Posted by Joe S.
That car is sweet! You just have to add the TT tail to yours when you do the conversion Scott. ![Wink](https://rennlist.com/forums/images/smilies/wink.gif)
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Scott
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#14
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Originally Posted by Adrienne
Well Scott...the only way to know for sure is for you to do it and let us know how you like it. We'll be waiting for your report...
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Scott
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#15
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Originally Posted by Air Kuul TT
Yeah Scott... and if you don't like it. I'll take the intercooler... you now how Lisa can be with car parts in the office. ![evilgrin](https://rennlist.com/forums/graemlins/evilgrin.gif)
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Scott
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