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#1
01-12-2002, 07:03 AM
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Comments on the 1992-1997 Porsche 968
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#2
03-17-2002, 06:54 AM
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I love 968's. Especially the Turbo S. Ahh. Turbo S...
vista.pca.org/stl/968t.htm
__________________
 Connor - Porsche Nazi since 2001, VW defiler since 2004  This here's a Fabrication forum!  My lugnut requires more torque than your LS1 makes.
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#3
03-19-2002, 09:17 PM
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Newflash Porsche didn't make an 968 in 1997 and in 1996 they only made 5 of them. The last year they were made was back in 1995. I like the 968 Turbo RS the best only 4 made.
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#4
03-22-2002, 12:59 PM
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Yeup, last model year was 1995. In mid year 95 they made a few, which sold in 96.
I know how to custom turbocharge the 3L 16V motor! I just need a 968 motor now for my car.
__________________
Connor - Porsche Nazi since 2001, VW defiler since 2004 This here's a Fabrication forum! My lugnut requires more torque than your LS1 makes.
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#5
03-22-2002, 01:15 PM
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Quote:
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#6
03-22-2002, 02:10 PM
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the race-only version
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#8
03-22-2002, 07:48 PM
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sorry, was in a bit of a rush so couldnt expand on that..
so yeah, the Turbo RS is the race version of the Turbo S.. its very rare, only 4 made... 340bhp and low 4 secs to 60... very very nice car....hell, here's a good site, u can download a clip about it too  http://www.968turbo.homestead.com cheers
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#9
03-23-2002, 03:44 PM
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Quote:
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#10
03-23-2002, 03:55 PM
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Quote:
They made 14 , you're right...
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#11
03-23-2002, 04:46 PM
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The problem was that the factory turbos used a 2V head, either off of a 951 or a 944 2.7. I have heard from different people about this head thing, but it was most assuredly a 2V head.
I have talked to a few people who have done 4V turbo jobs. Expensive, yes. But not as expensive as the 2V conversion, you lower the compression, through either rods or pistons($2000), and add a custom intake($500) and used turbo($1000 with intercooler), and a custom header($1000). You might want to go to bigger exhaust too! Shops charge $20,000 for this
__________________
Connor - Porsche Nazi since 2001, VW defiler since 2004 This here's a Fabrication forum! My lugnut requires more torque than your LS1 makes.
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#12
03-23-2002, 04:56 PM
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OK i'll go a little off topic on this , but ... a friend of mine , who owns an auto shop bought a porsche 968 (not the turbo) just a regular model with 3.0 and 6-speed , blue , grey leather , really nice car , and whe said he'll drive it himself... The only problem with it is that it has burnt engine bay... the engine is a piece of junk , not many parts will be usable out of it... so he has to fit a new engine in it... and he he has a 5.4 928 engine with trans in his shop , and he wants to find a way to put that in , i have a question , will that screw the car's balance by much? What weight is the stock 3.0 L4 versus the GTS 5.4 32V V8? If it won't screw the balance by much , then it will be one fast car , probably even faster than stock 968 turbos...
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#13
03-23-2002, 05:07 PM
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The story is, that when the Porsche engineers needed a new engine for the 944, they were alocated extremely limited resources, as most of the R&D money had gone into the 928. So they took a 928 V8, and cut it in half, added a new crankshaft, and a bit more metal to the casting.
The 968 motor was a 5.4 DOHC GTS motor cut in half. It'll weigh a little less than twice as much as the 968 motor. The stock 3L turbo made 369 ftlbs of torque, at 3000 rpm. Thats as much torque as the 5.4 928 V8, but with a substantially wider powerband. A good turbo 3L makes about 450 ftlbs, and around 550 hp. These are crazy motors, with VVT, 4 valves per cylinder, and a BIG turbo. He should see what he can salvage, if he can get enough good parts, he could build a nice turbo motor
__________________
Connor - Porsche Nazi since 2001, VW defiler since 2004 This here's a Fabrication forum! My lugnut requires more torque than your LS1 makes.
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#14
03-23-2002, 06:21 PM
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Quote:
 , and I've been really good at time... I always was the best in the class when it came to maths or other "scientific" subjects...
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#15
03-24-2002, 03:25 PM
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I thinky they share the 104mm bore, but the 968 was stroked more. It weighs a little less than twice the weight, because the 3.0 is half of the block, but more like 3/4 of the intake. Also, they have extra metal around the bottom end to hold the crank in.
If you wanted to turbo a 5.4, you'd have the same problems with turboing a 3.0, finding the parts. Fortunately, I've spent the last month tracking down the people who make the parts and can get the necessary pistons. I'm pretty sure the 5.4 has 104mm bore, but I could be wrong. With a good electronically controlled wastegate and computer, you can substantially increase low end torque, by kicking in peak boost at as low as 2000 rpm. 1000 hp from that motor wouldn't be unreasonable, and with the proper boost control, you could drive it every day, at only 4 lbs or so. I figure torque would be around 800 ftlbs. American big blocks, eat your hearts out.
__________________
Connor - Porsche Nazi since 2001, VW defiler since 2004 This here's a Fabrication forum! My lugnut requires more torque than your LS1 makes.
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