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SAIGON 68
 
johnnywishbone's Avatar
 
Join Date: Feb 2009
Location: ChulaJuana, South of Dago
Posts: 549
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my 930 engine plans, want your critique

i have a stock 1978 930. i have b&b headers& muffler, blown 6 full bay intercooler.....k27s turbo. tial 46 0.9 bar spring. turbonetics
diverter. i haven't installed this stuff yet. i need to make a commitment
to deflower a really pristine 930, 70,000 miles. not a show car. concerns:
1. 0.9 bar wastegate spring,,, good idea?? max hp not primary goal
2. ULTIMATE MOTORWERKS K27...will i need bigger injectors??
i plan on doing the work myself. i just developed a massive gas leak in the worst place possible, that should have been spotted by my service people. i am intimidated, i have never worked on anything smaller than 2000 hp diesels. i just retired, no money, have all the time in the world. my goal is a happy, healthy, durable engine. possible nevada silver state classic running. Porsche seems under represented there.
your opinions appreciated..... thx, jp
Old 11-22-2009, 06:58 PM
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OFF THE BOOST PIPE NOW...
 
A930Rocket's Avatar
 
Join Date: Oct 2003
Location: Mount Pleasant, South Carolina
Posts: 7,424
It's all bolt on stuff than can easily be replaced. What you have will give the engine a boost in HP, but not so much that it will shorten the lifespan considerably. A higher boost spring should always have a better more efficient intercooler IMHO for a longer engine life.

What turbo do you have? A HFS? I run that with a IA modded fuel head. No issues to date.
Old 11-22-2009, 07:10 PM
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SAIGON 68
 
johnnywishbone's Avatar
 
Join Date: Feb 2009
Location: ChulaJuana, South of Dago
Posts: 549
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this is my upgrade turbo

[IMG]file:///C:/Users/jp/Desktop/K27S%20from%20Ultimate%20Motorwerks%20New%20-%20Pelican%[/IMG]

well, that didn't work very well, did it? i'll work on the picture thing

Last edited by johnnywishbone; 11-22-2009 at 07:45 PM.. Reason: ignorance
Old 11-22-2009, 07:43 PM
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Crotchety Old Bastard
 
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 13,563
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Let me help you. K27S, and no you do not need to change the injectors.


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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 11-22-2009, 09:04 PM
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Infidel
 
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Join Date: May 2006
Location: UK
Posts: 1,172
You will need to send your WUR to Brian Leask to get it made adjuatable and get his RPM triggered solenoid, this will give you control of your fuel.
Then you will need to get your injectors checked for flow, and then check them on the car connected to your fuel lines for even distribution, adjust the fuel head until you are getting same fuel flow from each.

With what you are fitting you will really wake the car up, maybe around 360bhp or so without cams and 0.9bar? It will sound and perform much better than stock!
I would have a leak-down test on the engine before doing anything, just to be sure it's healthy
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Jonathan.
87 930, 993 turbo engine, RS Tuning 520PS/515lbf-ft, Arrow Rods, ARP hardware, Solid lifters, G50-50, RS Flywheel, 890nm Sachs clutch, RSR coil overs all round, 993 C4 calipers front, 930 fronts on the rear, Ruf Speedlines.....
Old 540 BMW, XB12S Modified, for being a total hooligan
Old 11-23-2009, 03:52 AM
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Registered User
 
Join Date: Jul 2006
Location: S. Florida
Posts: 7,274
Also, smooth off the casting seams on the turbo outlet pipe with fine sandpaper so the internal oring on the charge pipe adaptor seals against it better.

Put a little silicone grease on the orings before installing so they slide on without pinching or tearing.
Old 11-23-2009, 11:41 AM
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