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pyropete125
Joined: 20 May 2010
Posts: 45
Location: west haven, CT
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 Posted: Tue May 25, 2010 12:49 pm Post subject: visual differences between a 2.5 and 3.0L? |
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Just as simple of a question as the title. is there any visual differences between a 2.5 or a 3.0L N/A?
the car we have we think is a 2.5 but it may be a 3.0L
http://img.villagephotos.com/p/2002-10/60331/2132992
we are turning it into a lemons racer... i have a thread in the racing forum about it.
thanks all,
pete |
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Druman
Joined: 19 Mar 2007
Posts: 419
Location: Middleport, Ohio
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| Posted: Tue May 25, 2010 1:10 pm Post subject: |
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I've never seen a 3.0 but your pic looks just like my 2.5.
7osh
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87' 924S non-sunroof (Red) 45K miles
85' 944 "early" NA (Red) 130K miles
PORSCHE pisses excellence... |
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daniel
Joined: 18 Jun 2009
Posts: 686
Location: Sydney, Australia
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| Posted: Tue May 25, 2010 1:39 pm Post subject: |
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Its either a 2.5 or a SOHC 2.7, to be a 2.7 it would have to be a 89 or later model. The 3.0L were all DOHC motors, only released in the S2's and the 968. There was also a 2.7 DOHC released in the 944 S.
All 944 turbos were SOHC
Daniel
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Over the top of skyline, total brake failure.... hit the wall at over 200 kp/h at the dipper, so anyone who has to brake for the esses is a pussy.
1977.5 Race Car, CAMS Group S Spec
1989 944 Cabriolet |
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J1NX3D
Joined: 06 Feb 2003
Posts: 1333
Location: New Zealand
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| Posted: Tue May 25, 2010 10:10 pm Post subject: |
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its definitely an 8v porsche 924S. if it's a stock 924S then its an '87 or '88- the latter is 160hp, the former is detuned a bit less than 160hp.
| daniel wrote: | There was also a 2.7 DOHC released in the 944 S.
Daniel |
the DOHC 944S was still only a 2.5  only the '89 944 8v got 2.7
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'86 944
Last edited by J1NX3D on Tue May 25, 2010 10:12 pm; edited 1 time in total |
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pyropete125
Joined: 20 May 2010
Posts: 45
Location: west haven, CT
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| Posted: Tue May 25, 2010 10:11 pm Post subject: |
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well our car is an 84 with a 87 supposedly drive train. there is 4 wheel 5 lug brakes and there is a re-man tag on the block so we were wondering if it could be a 2.7 or 3.0. it is at least a 2.5L
thanks
pete |
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J1NX3D
Joined: 06 Feb 2003
Posts: 1333
Location: New Zealand
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ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
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| Posted: Tue May 25, 2010 10:40 pm Post subject: |
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| pyropete125 wrote: | | well our car is an 84 |
NOT.
There were no 924 models brought into the US from 1983-1985. From 1983-1984, the original 2L 924 continued to make it into some ROW markets, but NOT in the US. In 1986, the 924S with the 2.5L motor was introduced into the US, and continued through 1988. As noted above, the original 2.5L motor in the 924S had ~150 BHP (1986-87). In 1988, the compression was upped a bit to produce 160 BHP. I doubt very seriously if there was any transplanting involved on that car. Ever. Probably just a run-of-the-mill 1987 2.5L motor that may have been pulled and rebuilt at some point (I'd lay a dollar to a donut it was due to a busted timing belt / bent valves).
What's the VIN? That will answer a lot of questions...
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erstwhile owner of just about every 924 variant ever made |
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pyropete125
Joined: 20 May 2010
Posts: 45
Location: west haven, CT
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| Posted: Fri May 28, 2010 8:49 am Post subject: |
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| so all 2.7 and 3.0 are 16v? |
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Rasta Monsta
Joined: 12 Jul 2006
Posts: 11733
Location: PacNW
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| Posted: Fri May 28, 2010 9:40 am Post subject: |
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It is def not a 3.0 for reasons stated above. The 2.7 was a one year motor, odds are you have a 2.5.
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Toofah King Bad
- WeiBe (1987 924S 2.5t) - 931 S3
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thirdgenbird
Joined: 29 Feb 2008
Posts: 367
Location: Pella, IA USA
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| Posted: Fri May 28, 2010 11:43 am Post subject: |
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| pyropete125 wrote: | | so all 2.7 and 3.0 are 16v? |
from the factory there are:
2.5 8v
2.5 8v turbo
2.5 16v
2.7 8v
3.0 16v
3.0 8v turbo (968 turbo rs only)
after market you will see mixtures of the above and additional displacements
2.8 (2.5 block with 3.0 crank)
you can also bore/sleeve any block and use a 3.0 crank to get 3.2+
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17in caymans, koni yellow coilovers, hypercoil springs, kla solid upper mounts, 968 sway bars, kla drop links, kla strut brace, fidanza flywheel, dansk catback, wilwood front calipers, ss brake lines, e-codes, 944 duckbill, manual rack,momo steering wheel |
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haroldk
Joined: 24 Nov 2008
Posts: 171
Location: St Paul, MN, USA
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| Posted: Fri May 28, 2010 11:52 am Post subject: |
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Pete, you should just stick a Lima in it.
It's a little weird to see a name from TurboFord pop up here. |
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pyropete125
Joined: 20 May 2010
Posts: 45
Location: west haven, CT
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| Posted: Fri May 28, 2010 11:58 am Post subject: |
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a folvo headed 2.5L holset turbo would be pretty sweet! maybe fore a GRM 2010 
pete |
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morghen
Joined: 21 Jan 2005
Posts: 9095
Location: Romania
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| Posted: Fri May 28, 2010 4:05 pm Post subject: |
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| thirdgenbird wrote: |
you can also bore/sleeve any block and use a 3.0 crank to get 3.2+ |
what about vibration? i tought that 3.0L is the limit...after that you get nasty vibration for a 4cly.
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Supercharger and EFI kits
https://www.the924.com |
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pyropete125
Joined: 20 May 2010
Posts: 45
Location: west haven, CT
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| Posted: Fri May 28, 2010 7:55 pm Post subject: |
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a mercrusier 221 is a 3.7L 4 cylinder- half of a ford 460, even some parts and a head from a 460 fits. people use them for racing all the time.
NHV is a problem for any motor, and not a if it is this big or any set limits. |
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Rasta Monsta
Joined: 12 Jul 2006
Posts: 11733
Location: PacNW
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| Posted: Sat May 29, 2010 12:49 am Post subject: |
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| morghen wrote: | | what about vibration? i tought that 3.0L is the limit...after that you get nasty vibration for a 4cly. |
Vibration occurs over 2.0. . .hence, balance shafts added to the 2.5 and variants (actually licensed from Mitsu).
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Toofah King Bad
- WeiBe (1987 924S 2.5t) - 931 S3
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