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Eturbo924
Joined: 09 Nov 2002
Posts: 2212
Location: Londonderry NH
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 Posted: Fri May 02, 2008 9:01 am Post subject: |
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Where can I get me some of those Mickey Mouse tools... I just love Disney products 
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1982 924
1992 968
2003 C4S
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Rasta Monsta
Joined: 12 Jul 2006
Posts: 11733
Location: PacNW
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| Posted: Fri May 02, 2008 9:29 am Post subject: |
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That's all fine and good, but the Goofyspanner should be avoided.
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Toofah King Bad
- WeiBe (1987 924S 2.5t) - 931 S3
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tuurbo
Joined: 08 Aug 2007
Posts: 1446
Location: East Windsor, New Jersey
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| Posted: Fri May 02, 2008 9:32 am Post subject: |
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Squeaky I can't speak for Gohim but I think for this 924S you must purchase Porsche dedicated tools made for a single purpose and a single vehicle line up: The Porsche 4 cyl 2.5-2.7 FEWC lineup.
e.g., If I want to pull my valves on my 931, I require a special VW tool $134 and it only takes out valves on similar engines.
...it seemed that point got lost. If it didn't, please ignore the bandwidth.
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1980 924 turbo, MSD, Meth. Inj, otherwise stock. |
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Maybe924
Joined: 14 Aug 2007
Posts: 412
Location: New London, CT
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| Posted: Fri May 02, 2008 9:49 am Post subject: |
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Since a 931 can be easily modified to run ROW boost levels and at 10PSI is gonna produce around 170hp I think the fact that its faster than a 924S is rather obvious. The same car, same weight, more hp equals faster. While the early US 931s had the same power as the 924S, the series 2 had a solid 13hp over the 924S. Modified there is no comparison and getting more power out of a 931 is relatively easy (especially in my case  ) but getting any extra power out of a 924S would require an act of god. The faster car is definately the 931.
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1981 931 GT (CGT Intercooled)
1985 911 Targa Carrera (Sold) |
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Rasta Monsta
Joined: 12 Jul 2006
Posts: 11733
Location: PacNW
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| Posted: Fri May 02, 2008 10:35 am Post subject: |
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| Maybe924 wrote: | | The faster car is definately the 931. |
Like I said, Shaggy smokes Red.
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Toofah King Bad
- WeiBe (1987 924S 2.5t) - 931 S3
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Eturbo924
Joined: 09 Nov 2002
Posts: 2212
Location: Londonderry NH
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| Posted: Fri May 02, 2008 12:20 pm Post subject: |
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Agreed the faster car is the 924S.... oops I mean 931!
Dang you know that would be a real cool video... some one with both cars should set up a test comparision!
Pit a 1988 924S... if anyone can find a dang 1988... against a series two 931. Now it would be unfair to modify the 931 but I would allow it to run at the ROW boost levels to make it interesting!
Of course I would want it pulling a boat achor if I was in the 924S! Hahaha
No but serious... anyone want to donate their car for the test? Of course the two cars should be in close proximity to each other.
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1982 924
1992 968
2003 C4S
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Squeaky
Joined: 01 May 2008
Posts: 17
Location: CT
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| Posted: Fri May 02, 2008 12:34 pm Post subject: |
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| What's the "ROW" boost level? |
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Eturbo924
Joined: 09 Nov 2002
Posts: 2212
Location: Londonderry NH
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| Posted: Fri May 02, 2008 2:45 pm Post subject: |
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Rest of world.
USA cars had smaller turbos blowing at less PSI. So you can get more power by turning it up to 10 PSI which is what the rest of the world got... for the most part.
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1982 924
1992 968
2003 C4S
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morghen
Joined: 21 Jan 2005
Posts: 9102
Location: Romania
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| Posted: Fri May 02, 2008 6:54 pm Post subject: |
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| Khal wrote: | | morghen wrote: | | never driven a 924S... |
Keep that in mind...
| morghen wrote: | | but have driven late 944 wich is the same car... |
No, it ain't.
| morghen wrote: | ...the turbo will smoke the S at any performance test
The S is ...not so fast. |
Wrong. At least in the U.S. (and I'm pretty sure it's the same for the rest of the world), the 924S is, within tenths of a second, as fast as a 924 Turbo (faster than a Series I 924 Turbo to 60mph, IIRC, not that it matters a whole lot). If you can tell the difference through the seat of your pants, you should probably be driving F1. And the 924S handles at least as well as the Turbo. Arguably better, as the power steering makes it a dream to drive and the power delivery is much smoother. |
how would you know? did you drive both and can say that they are not the same car? It is like i said...the S is easyer to drive.
Anyways yes i was wrong about the 931 being much faster than the S...i always forget the US specs...however you can make the turbo much faster cheaper and easyer.
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Rich H
Joined: 10 Jun 2007
Posts: 2665
Location: Preston, Lancs, UK
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| Posted: Fri May 02, 2008 7:23 pm Post subject: |
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Personally I have driven neither. But for a first car I would take a long hard look at insurance and running costs then buy an N/A, sure its slow and not as cool but they run forever (Even with some hideous engine damage!) and they are cheap to run and fix. They can be a sweet handling car if properly maintianed.
Top tip: buy a sheddy N/A, learn to drive it properly and then, when your skills are better then the car can cope with, upgrade to a turbo or an S. A properly driven crap car can easy out drive a badly driven posh car. Just make sure there are a few corners avaialbe to reduce the effect of power difference 
Around Knockhill race circuit the Lowly Elise with 118 bhp can outrun 600bhp Subarus and Evos as they cannot get the power down quick enough and just cannot complete with a nimble car driven well in the corners. The drivers are used to point and squirt in a straight line.
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1994 Lotus Esprit S4 - Work in progress...
1980 Porsche 924 S2 DITC Turbo - Original spec
1978 Homo-Sapiens - Tired spec
1953 Landrover S1 - Pensioner Spec |
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Khal
Joined: 26 Sep 2003
Posts: 4872
Location: Sunny and lovely interior BC, Canada
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| Posted: Fri May 02, 2008 7:44 pm Post subject: |
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| morghen wrote: | | how would you know? did you drive both..? |
No. Did you? 
Not trying to be insulting, mate. Just trying to keep the facts straight.
I will admit that the 924S is probably more similar in 'feel' to any 944 than it is to the 924 Turbo, and that in broad terms it's very, very similar to a first series 944 (although the 944 at least had a wider track than the 924S, did it not? Hence the flared wheel arches? Maybe minor but it probably improves performance and changes the 'feel', if only slightly). But you did mention that you drove a late 944. I don't know how late, but bear in mind that in '85 or '86 the 944 got an updated interior (and, knowing Porsche, probably several other minor upgrades over the first series, which, again, probably slightly changes the 'feel'). Then in '89 the 944 got a 2.7-litre engine, which I'm sure feels considerably different to 924S's 2.5-litre. And the 944 probably got a power upgrade every other year since it was introduced in '83...
Anyway, I know what you meant on that particular point.
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'80 924 Turbo |
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morghen
Joined: 21 Jan 2005
Posts: 9102
Location: Romania
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| Posted: Fri May 02, 2008 7:57 pm Post subject: |
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Khal: cheers, mate 
Guy who wants to buy a 924: you probably got the drift by now you have the facts...now you just have to see what fits you best. Good luck.
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Maybe924
Joined: 14 Aug 2007
Posts: 412
Location: New London, CT
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| Posted: Fri May 02, 2008 11:07 pm Post subject: |
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Early 944 and 924S have the same track its the 23mm rim offset on the 944 that fills the flares.
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1981 931 GT (CGT Intercooled)
1985 911 Targa Carrera (Sold) |
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Maybe924
Joined: 14 Aug 2007
Posts: 412
Location: New London, CT
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| Posted: Fri May 02, 2008 11:19 pm Post subject: |
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The other thing is even the US spec Turbo feels faster than the 924S since you have a flatter power curve in the 924S, so while you both reach 60 in around 7.7 seconds the 931 starts off slower and then has to surge to catch up. The surge creates more g-force and makes the car feel faster than the S. And of course as the boost is turned up... first to Euro spec... then to CGT spec with an intercooler that surge gets stronger and stronger. So even in US Spec, the 931 feels subjectively faster and I've driven both.
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1981 931 GT (CGT Intercooled)
1985 911 Targa Carrera (Sold) |
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Smoothie
Joined: 01 Jan 2003
Posts: 8032
Location: DE (the one near MD, PA, NJ)
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| Posted: Fri May 02, 2008 11:46 pm Post subject: |
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In my own experience, the earlier given estimate of 10k-25k mile turbo life is way conservative. I'm still running the one I installed in 1996 (almost 12 years now) and it's my year-round daily driver. The odometer was broken for much of that time, but I'd estimate I have close to 80k miles on it. The trick it seems is to use a full synthetic oil only. Mobil 1 in my case.
Other estimates I've read are usually in the 40k-50k mile range, but type of oil used/to-use wasn't given with those estimates. -But I assume they were based on conventional non-synthetic oil use.
So, since you don't know for sure what's been run through the turbo on a used car, there might be a need for rebuild/replacement early (in my case after 3-4 years as I bought the car in late '92). -But a new or expertly rebuilt one run exclusively on full synthetic should last a good long time.
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"..it's made in Germany. You know the Germans always make good stuff."
'82 924T, US version, dark green metallic, 5 speed Audi 016G gearbox |
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924 FAQ (Technical)
