07-16-2009, 07:07 AM
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#1
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Registered User
Join Date: Jun 2004
Location: Des Moines, IA
Posts: 8,083
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Opps, sorry, the 968
The 968 was powered by an updated version of the 944's straight-4 engine, now displacing 3.0 L and producing 240 PS (236 hp/177 kW). Changes to the 968's powertrain also included the addition of Porsche's then-new VarioCam variable valve timing system, newly-optimized induction and exhaust systems, a dual-mass flywheel, and updated engine management electronics among other more minor revisions. The 968's engine was the second-largest 4-cylinder ever offered in a production car up to that time. A new 6-speed manual transmission replaced the 944's old 5-speed, and Porsche's dual-mode Tiptronic automatic became an available option. Both the Variocam timing system and Tiptronic transmission were very recent developments for Porsche. The Tiptronic transmission had debuted for the first time ever only 3 years prior to the debut of the 968, on the 1989 Type 964 911. The Variocam timing system was first introduced on the 968 and would later become a feature of the Type 993 air cooled six cylinder engine.
968 Turbo S
Porsche briefly produced a turbocharged 968 sold as "Turbo S", a fairly odd naming choice for Porsche which usually reserves the added "S" moniker for models that have been tuned for more power over a "lesser" counterpart, such as with the 911 Turbo which has infrequently been available in both "Turbo" and higher-performance "Turbo S" guise. Only 15 were produced in total and only for sale in mainland Europe. Tests conducted in 1993 produced a 0 to 60 miles-per-hour time of 4.7 seconds and a top speed of approximately 180 miles-per-hour, performance comparable to the much newer Type 996 911.
968 Turbo RS
A further stripped out version of the Turbo S which was built for Porsche's customer race teams between 1992 and 1994, this variant was available in two states of tune; a 337 bhp version which was built to the German ADAC GT specification and used the K27 turbocharger from the Turbo S, and an international spec version which used a KKK L41 turbocharger producing 350bhp and was reduced to 1212kg in weight (the ADAC GT version had to have ballast added to bring the car up to the 1350kg minimum weight limit allowed by ADAC regulations). Only 4 Turbo RS models were ever built, and along with the 964 Turbo RS these were the only Porsches to have been given the Turbo RS designation.
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Rich Belloff
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07-16-2009, 07:50 AM
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#2
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Porscheectomy
Join Date: Mar 2006
Location: Seattle Area
Posts: 3,011
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Why not buy the hardware before doing the fabrication? I'm sure there will be things that measurements will miss but you could catch by doing test fitting.
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07-16-2009, 08:19 AM
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#3
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Registered User
Join Date: Jul 2007
Location: Texarkana, Texas
Posts: 959
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#1 I've got to agree with some of the other posters about going bigger. The 3.6 and 3.8L engines have just about the same foot print as the 2.5 and 2.7L, but MUCH more power. This sounds like a very expensive project. I personally would go with a bigger engine to get the most bang for your buck.
Have you considered going air cooled instead of the newer water cooled engines? The last generation of air cooled engines are from the 993 and they were pretty powerful too, more so than the modern 2.5 and 2.7L. I'm just thinking that it might help to simplify things quite a bit to not have to worry about front mount radiators (although an oil cooler might be required). Older 911 engines are even simpler and would be an easier install. I'm not sure how much power the 901 and 915 transmissions from the MR Porsche 914 would take, but you can probably mate up a lot of the 911 engines to those transmissions for the MR layout.
Kirk
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2000 Boxster S - Gemballa body kit, GT3 front bumper, JRZ coilovers, lower stress bars
2003 911 Carrera 4S - TechArt body kit, TechArt coilovers, HRE wheels
1986 911 Carrera Targa - 3.2L, Euro pistons, 964 cams, steel slant nose widebody
1975 911S Targa - undergoing a full restoration and engine rebuild
Also In The Garage - '66 912, '69 912, '72 914 Chalon wide body, '73 914
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07-16-2009, 10:02 PM
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#4
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Registered User
Join Date: Apr 2007
Location: San Francisco
Posts: 40
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Quote:
Originally Posted by Kirk
#1 I've got to agree with some of the other posters about going bigger. The 3.6 and 3.8L engines have just about the same foot print as the 2.5 and 2.7L, but MUCH more power. This sounds like a very expensive project. I personally would go with a bigger engine to get the most bang for your buck.
Kirk
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First of all, good luck w/ your project! Its sounds very cool. Kinda like a german SHOgun (you remember that one don't you? Its a Ford Festiva w/ a SHO Yamaha v6 mounted in back)
I believe Suncoast is having a sale on engines w/ no core needed. You could pick up one of these, get your boxster (w/ a blown engine or rms leak etc. ) and not have to find a crashed one. You could then sell off all the rest of the pieces or ???
Take lots of pics and document everything!!!
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Jason
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07-16-2009, 10:21 PM
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#5
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Registered User
Join Date: Feb 2008
Location: Du Monde
Posts: 2,199
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Naysayers aside...
Dumb thread IMHO...
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07-17-2009, 09:12 AM
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#6
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Registered User
Join Date: Feb 2009
Location: Buffalo NY
Posts: 828
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Quote:
Originally Posted by Lil bastard
Naysayers aside...
Dumb thread IMHO...

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I got your back on this one...
Perhaps the next project will be the infamous construction of a silk purse from the sow's ear...
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07-17-2009, 09:25 AM
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#7
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Registered User
Join Date: Jun 2004
Location: Des Moines, IA
Posts: 8,083
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I still think this is the way to go--968 Turbo S engine
http://968turbo.homestead.com/Number3.html
This was the "mystery car". I spoke to Gerd Schmid at the Porsche racing department and he told me the car was in England. I searched for two years and finally Gary Hill gave me a lead and sure enough, it was in England. The car is black with pink and purple blobs and is affectionately known as "Bubbles". It was purchased new in March of 1994 and raced in the 1994 BPR series, driven by Erik Hendriksen and Justin Bell.
The car is currently being maintained by Russell Lewis, owner of RSR Engineering (Porsche garage) and contributor to "911 & Porsche World" magazine. Russell tells me that the car has 7000 km on it and has never been crashed. Other reliable sources indicate that the car has had many "incidents" and blown engines. Another source once told me that the car was totalled and all that was left were parts, but we know this is not true. So maybe this car is still a bit of a mystery!
Russell says the car has all the endurance mods including 120 litre fuel tank, air jacks, leightweight parts and engine output increased to 440 bhp!
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Rich Belloff
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07-17-2009, 10:11 AM
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#8
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Registered User
Join Date: Feb 2009
Location: Buffalo NY
Posts: 828
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If he wants neck snapping acceleration and money isn't an object why not convert to electric? At least after the substantial outlay the car would be inexpensive to operate... Love the RS engine, the specs are eye popping, however, I'd rather have said engine in the 968RS.
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