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Join Date: Apr 2005
Location: Miami, Florida
Posts: 20
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930 uprgades
Need your help Guy's, I got the green light from the Warden to allow a few dollars to be spent on some upgrades for my 1987 stock 930. I would like to get +/- 400 HP after it's all said and done. In the most general terms what do I need to get to make this happen on my car. Your opinion please, I guess I will do the "bolt-on" swap items first and then move on to the inside if you think it's required although I've read in here somewhere that I should be able to get 400HP without going into the heads, pistons, FI, etc. Thanks to all.
MV 02 ZO6 70 454 LS-5 92 XJS V-12 conv. 87 930 stock
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Manny V |
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04-24-2007, 02:15 PM
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Join Date: Mar 2002
Posts: 3,563
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Aftermarket headers, free-flowing muffler, K27HF-S, aftermarket intercooler, 1.0bar boost spring & some form of fuel enrichment.
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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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04-24-2007, 04:41 PM
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Crotchety Old Bastard
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400HP at the crank right?
You'll need to go into the engine to get 400HP to the wheels.
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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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04-24-2007, 07:29 PM
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I think you'd be very happy (for now
 ) with Merv's suggestions. I'd go with Imagine Auto's fuel head mod for the additional fuel requirements.
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2014 Cayman S (track rat w/GT4 suspension) 1979 930 (475 rwhp at 0.95 bar) |
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04-25-2007, 12:26 PM
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Crotchety Old Bastard
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You likely don't need the fuel head mod unless your going into the engine to get >400RWHP. Do the bolt-ons, check your A/F ratios then decide what comes next.
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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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04-25-2007, 08:06 PM
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Join Date: Dec 2004
Location: Danville - CA
Posts: 1,259
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If you go with a Highflow S turbo I would NOT put a 1 B spring in. I was getting way too much boost.
I would first define what you want to spend and then go from there.
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Rob Montgomery '88 Blk/Blk 930 ('Lucy') - Not Stock & Not Running |
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04-26-2007, 12:15 PM
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A K27-7200 will flow upwards of 400+HP I believe, so it would be a better match for your application and spool very nicely too.
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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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04-26-2007, 04:03 PM
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Registered
Join Date: Apr 2005
Location: Miami, Florida
Posts: 20
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930 upgrades
Thank you all very much. I sincerely appreciate all the good info and "How to's" provided. I'm off to the parts store to start the gathering..... may/will need more advice as I get into it. Again, thank you for your time.
Manny V. Quote:
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Manny V |
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05-01-2007, 02:06 PM
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78 Porsche 911SC 3.0L, 3.3Turbo soon. 
1979 Porsche 930 3.4
