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Raceboy
Joined: 01 Mar 2004
Posts: 2327
Location: Estonia, Europe
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 Posted: Sun Oct 24, 2004 5:58 pm Post subject: |
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Mine is right now in the bunch of the slow ones: it sits right now (I don't drive my 931 in winter), but in June I dynoed 232 HP (adjustable wastegate and front mounted IC).
But the fastest? I take a wild guess and it would be Racings. With all mods he's done, I'd say his beast is near 300.
_________________
'83 924 2.6 16v Turbo, 470hp
'67 911 2.4S hotrod
'90 944 S2 Cabriolet
'78 924 Carrera GT replica
'84 928 S, sold
'91 944 S2, sold
'82 924S/931 "Gulf", sold 
'84 924, turbocharged, sold.
http://www.facebook.com/vemsporsche |
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Vince Ponz
Joined: 02 Nov 2002
Posts: 3581
Location: Florida
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| Posted: Thu Oct 28, 2004 12:28 am Post subject: |
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Soyracer is my guess. He is a Porsche mechanic and he had a larger wastegate spring and intercooler, etc.
Maybe you should ask him.
Rich you out there?
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"Never let them see you sweat"
77.5 924 modified track car
79 931 Euro stock
88 924S SE
87 911 Targa stock |
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Joakim
Joined: 15 Jun 2003
Posts: 24
Location: Sweden
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| Posted: Mon Jan 17, 2005 7:54 am Post subject: |
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Hallo i have built a 931 engine, the Super flow show at 374 HP at 7000 rpm. Some pictures http://www.fotogalleriet.se/alb_show_id4595_page0.html
Joakim
Last edited by Joakim on Sat Mar 19, 2005 10:27 pm; edited 1 time in total |
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Joakim
Joined: 15 Jun 2003
Posts: 24
Location: Sweden
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| Posted: Fri Jan 21, 2005 5:06 am Post subject: |
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New pictures, I hope it will work 
look down to the new link
Joakim
Last edited by Joakim on Sat Jan 22, 2005 8:42 am; edited 1 time in total |
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Zuffen
Joined: 31 Jul 2001
Posts: 1427
Location: Owasso, Oklahoma 74055
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| Posted: Fri Jan 21, 2005 8:11 am Post subject: |
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send the pics to me and I'll host them.
_________________
Bob Dodd - 924turbo@cox.net
931 1982, 944 1982 euro, 924S 1988SE, 93 968 tip 06 Silver Cayenne S, 06 Black Cayenne S
I have Way too many cars, parts for the 931,944 and 951 |
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Joakim
Joined: 15 Jun 2003
Posts: 24
Location: Sweden
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Paul
Joined: 02 Nov 2002
Posts: 9491
Location: Southeast Wisconsin
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| Posted: Sat Jan 22, 2005 4:21 pm Post subject: |
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Nice, very nice!
Is that a 4 bolt flange I see welded to the stock manifold?
_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy. |
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Joakim
Joined: 15 Jun 2003
Posts: 24
Location: Sweden
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| Posted: Sat Jan 22, 2005 5:34 pm Post subject: |
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| Quote: | Paul Posted: Sat Jan 22, 2005 4:21 pm Post subject:
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Nice, very nice!
Is that a 4 bolt flange I see welded to the stock manifold?
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Yes its a stainless flange welded on the OEM manifold.
Joakim |
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Paul
Joined: 02 Nov 2002
Posts: 9491
Location: Southeast Wisconsin
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| Posted: Sat Jan 22, 2005 5:57 pm Post subject: |
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We've all been waiting for someone to do that!!!
What process was used and do you think it will last?
I'm guessing more than a few of us would like to do this.
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Joakim
Joined: 15 Jun 2003
Posts: 24
Location: Sweden
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| Posted: Sun Jan 23, 2005 1:21 am Post subject: |
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| Quote: | Paul Posted: Sat Jan 22, 2005 5:57 pm Post subject:
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We've all been waiting for someone to do that!!!
What process was used and do you think it will last?
I'm guessing more than a few of us would like to do this.
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The manifold is welded with a special electrode for cast iron.
Well I hope it will last forever 
Joakim |
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-nick
Joined: 16 Nov 2002
Posts: 2699
Location: Cambridge, MA
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| Posted: Tue Jan 25, 2005 2:39 am Post subject: |
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Wow Joakim, great work! I'm curious what you think of the new turbo? And what are you using exactly?
Couple other notes-
I notice you put the exhaust gas temp probe on the #1 runner- any reason? Number 4 usually runs hottest.
Any reason you cut the boost off at 1.55 bar? Intake temps get too high after that? (Also, I assume the VattUt column is intake temp?)
Could you translate the dyno sheet data column names for us? It looks like it reads- rpm, torque, hp, boost, intake temp, ?, ?, lambda (obviously!), exhaust temp.
What are your driving impressions? Smooth idle? How is off-boost power? What compression are you running?
Again, fantastic work! You gotten me very excited to start assembling all my new go-fast pieces.
Regards,
nick |
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Joakim
Joined: 15 Jun 2003
Posts: 24
Location: Sweden
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| Posted: Tue Jan 25, 2005 4:37 am Post subject: |
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Hallo I will try to answer your questions and i have translated the dyno sheet in my photo galleri
| Quote: | Wow Joakim, great work! I'm curious what you think of the new turbo? And what are you using exactly?
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The turbo is a Garret 3037, maybe its little to big for my engine, perhaps I should have used a smaller turbine house to get it better in lower rews,
otherwise when you have the engine at 4000 RPM and open the throttle, its moves a lot
| Quote: | Couple other notes-
I notice you put the exhaust gas temp probe on the #1 runner- any reason? Number 4 usually runs hottest.
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That is the dynomans job, so i could not give you a answer.
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Any reason you cut the boost off at 1.55 bar? Intake temps get too high after that? (Also, I assume the VattUt column is intake temp?)
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Yes one good reason is headgasket problem, I have o-ringed the block but is still is a little problem, but i hope is solved now.
Its no problem to get the boost up to over 2bar we tried when the wastegate broke, the intake temp its aboute 40degree C
My driving impressions is the 3 first gears are very short, the idle its little rumbly at 800 RPM but good on 1000-1100 RPM.
I running a compression at 8,3:1
Off boost power its good, I could put up a dyno sheet without wastegate spring if you want?
Joakim |
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-nick
Joined: 16 Nov 2002
Posts: 2699
Location: Cambridge, MA
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| Posted: Tue Jan 25, 2005 9:05 am Post subject: |
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Sounds like you've got some excellent results!
Thanks for the dyno translation. This will be great info when I go to tune mine.
Regards,
nick |
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kye
Joined: 02 Apr 2004
Posts: 257
Location: Perth, Western Australia
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| Posted: Tue Jan 25, 2005 7:46 pm Post subject: |
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wow, nice work!
tis good to see dyno plots and nice pics up online so that other people can really see and understand the work done. (even if the details go above my head!)
i'd imagine it goes like a bat-out-of-hell too.. 
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it's funny, but when they said "Anything is Possible", that's exactly what they meant.... |
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Paul
Joined: 02 Nov 2002
Posts: 9491
Location: Southeast Wisconsin
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| Posted: Tue Jan 25, 2005 8:13 pm Post subject: |
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IMO the exhaust gas sensor is in the correct spot, since what you really want to know is the TIT. (Turbine Inlet Temperature). Then you can mount a TIT gauge in your cockpit.
Every women I ever had in a plane wanted to know what that gauge was all about....
_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy. |
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