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Join Date: May 2006
Location: California
Posts: 1
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Turbo in non-turbo engine
Is there any possibility of adding a turbo to a non-turbo porsche 911 engine? I'm looking between 1986 and 1989. Is this even a good idea? Just getting into this so bear with me if this is a stupid question.
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05-11-2006, 12:33 PM
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Location: Long Island
Posts: 400
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Yes I have an 89 with a Protosport set up. Call prototech he is in Cali and speak to Todd. Also do a search
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2012 XC90- wifey 2011 BMW 535I -Daily Driver 911/964 Widebody Cabriolet-Protosport Stage 1.5 Turbo |
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05-11-2006, 12:35 PM
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Location: Charlottesville Va
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Its a wonderful idea-search Protomotive or Protosport.
Keep in mind its a slippery slope.
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Greg Lepore 85 Targa 05 Ducati 749s (wrecked, stupidly) 2000 K1200rs (gone, due to above) 05 ST3s (unfinished business) |
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05-11-2006, 12:41 PM
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Yes, it's a great upgrade. Now, if I could just afford that 930 gearbox...
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"Igneous Aquam et Laudi semper" Carl Muckley |
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05-11-2006, 01:00 PM
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Re: Turbo in non-turbo engine
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 Without touching the engine internals, you can extract 400HP @ 0.7bar of boost (intercooled of course). Otherwise, approx 340-360HP @ 0.5bar, non-intercooled  You're better off getting a tougher G50 based car for future upgrades. They'll pretty much handle anything you throw at them
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Merv '89 911 Turbo Cab Protomotive MAP ECU, Twin Plugged Heads, GT2-EVO CAMs, 3.3L fully finned P&C's, ARP fasteners, C2T head gaskets, Titanium Retainers, Turbo spec valves, springs & guides, 964 splash valves, GT35R BB turbo, GSF Stainless Headers, Magnaflow Exhaust, Full bay Intercooler, TiAL 46mm w/gate, TiAL 50mm BOV, Apexi AVC-R EBC, SPEC Stage3+ Clutch kit, Crane CDI Ignition
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05-11-2006, 03:45 PM
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Their prices seem terribly expensive.
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"It looks like a Pleco.." |
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05-11-2006, 03:53 PM
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one of gods prototypes
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gotta pay to play
 how much hp can an 85' 915 handle? i have a few garrett t03's laying around.......if i could get 250-300hp easily out of my 3.2 i'd be VERY happy
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Brought to you by Carl's Jr. |
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05-11-2006, 04:32 PM
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The 915 will handle that, and more, easily. It all comes down to how you treat the box. Be gentle and it will handle that power easily.
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Merv '89 911 Turbo Cab Protomotive MAP ECU, Twin Plugged Heads, GT2-EVO CAMs, 3.3L fully finned P&C's, ARP fasteners, C2T head gaskets, Titanium Retainers, Turbo spec valves, springs & guides, 964 splash valves, GT35R BB turbo, GSF Stainless Headers, Magnaflow Exhaust, Full bay Intercooler, TiAL 46mm w/gate, TiAL 50mm BOV, Apexi AVC-R EBC, SPEC Stage3+ Clutch kit, Crane CDI Ignition
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05-11-2006, 04:36 PM
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one of gods prototypes
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very interesting
my 915 is currently being rebuilt......so i should be good to go. time to start looking into all the little stuff to see if i can make it work......i have a gaggle of different intercoolers laying around too
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Brought to you by Carl's Jr. |
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05-11-2006, 04:44 PM
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To3 is marginal, T03/4 is better. You'd get 300 hp easily even with a T03.You'll need a rising rate fpr and a chip, the chip is the problem unless you could care less about intellectual property and are willing to just burn someone else's.
MB911 and Souk are both working on systems less expensive than Proto's. MB thinks his price will be substantially less than Proto's, we'll see. Proto isn't really outrageous if you look at what you'd pay at retail to assemble your own system; if you can bend/flange pipe and can do the chip, then yeah, its pricey, but not many folks can do that. As to what the 915 will handle, 400 hp seems to be no problem unless you're into drag racing; the lag itself protects the trans on the street unless you don't respect mechanical things generally.
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Greg Lepore 85 Targa 05 Ducati 749s (wrecked, stupidly) 2000 K1200rs (gone, due to above) 05 ST3s (unfinished business) |
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05-11-2006, 05:17 PM
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Proto typically uses a T04B type setup in their systems. Their fabrication work is of a very high quality. You get what you pay for that's for sure.
Either way, a blown 3.2 will put a smile on your face. try to hook up with a member on this Forum who's done the conversion and you'll see first hand what it's like.
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Merv '89 911 Turbo Cab Protomotive MAP ECU, Twin Plugged Heads, GT2-EVO CAMs, 3.3L fully finned P&C's, ARP fasteners, C2T head gaskets, Titanium Retainers, Turbo spec valves, springs & guides, 964 splash valves, GT35R BB turbo, GSF Stainless Headers, Magnaflow Exhaust, Full bay Intercooler, TiAL 46mm w/gate, TiAL 50mm BOV, Apexi AVC-R EBC, SPEC Stage3+ Clutch kit, Crane CDI Ignition
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05-11-2006, 05:41 PM
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Join Date: Apr 2004
Location: Salida, Ca
Posts: 59
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Has anybody in the Calif Bay Area or nearby done it?
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79 Euro 930 |
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05-11-2006, 05:50 PM
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Crotchety Old Bastard
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If you are currently rebuilding your 915 now is the time to add some bolt-on strength. The WEVO twin bearing retainer and a reinforced side cover are good to have. A posi unit is very good protection due to the torque being spread to both axles.
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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 |
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05-11-2006, 06:00 PM
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Quote:
I notice you have a M491 Turbo-look! Cool. You already have the, G50 box, 930 turbo brakes and turbo tail, ready to accommodate a full length intercooler
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Merv '89 911 Turbo Cab Protomotive MAP ECU, Twin Plugged Heads, GT2-EVO CAMs, 3.3L fully finned P&C's, ARP fasteners, C2T head gaskets, Titanium Retainers, Turbo spec valves, springs & guides, 964 splash valves, GT35R BB turbo, GSF Stainless Headers, Magnaflow Exhaust, Full bay Intercooler, TiAL 46mm w/gate, TiAL 50mm BOV, Apexi AVC-R EBC, SPEC Stage3+ Clutch kit, Crane CDI Ignition
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05-11-2006, 06:43 PM
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Location: Salida, Ca
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It's actually a conversion,done when I bought it. I currently have it for sale unless I can talk myself out of it. Todd moved out of Calif,Arkansas I believe last year.
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79 Euro 930 |
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05-11-2006, 07:15 PM
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Location: Long Island
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I guess if you knew what a turboed 3.2 felt like you would not be contemplating selling. Right Merv....
Since my conversion I have clocked about 800 spirited miles.....and the smile just doesn't leave my face. Be prepaired to drop some serious coin as once you do the turbo then come the big brakes, suspension...etc...
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2012 XC90- wifey 2011 BMW 535I -Daily Driver 911/964 Widebody Cabriolet-Protosport Stage 1.5 Turbo |
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05-11-2006, 07:23 PM
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You're probably right!
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79 Euro 930 |
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05-11-2006, 07:39 PM
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coolcavaracing.com
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Quote:
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Pål (Paul) - The Norwegian lost in Finland... 1978 911SC 3.6 | 2001 Boxster S Racing Car | 1966 912 based 911 RSR replica racing car (for sale!) come and follow the Porsche Sports Cup racing fun and me at www.facebook.com/coolcavaracing 
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05-11-2006, 10:47 PM
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1985 Porsche 911 Cabriolet 3.2 with Protomotive St
1985 Porsche 911 carrera targa 3.2
78 Porsche 911SC 3.0L, 3.3Turbo soon. 
