Anybody add a turbo to a 968 variocam?
08-13-2007, 06:00 PM
#16
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Yep that was my thinking. I'm used to the NA school of thought, where displacement is like money - you never ever want less. I'm considering turbocharging my 968 so I've been trying to learn as much as possible about the possible routes. That link to 944968.com above taught me the option of using a 2.5 crank!
08-13-2007, 09:26 PM
#17
Track Day
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Originally Posted by sillbeer
FR, you wont really notice .3 liters of displacement missing with a turbo engine. just replace displacement with boost =)
I think the 951 head was used primarily because of wiring harness/DME issues. Since the 968's would be a b**** to install/program for a turbo app, the 951 harness/DME was used as well. If you've got to wire and program an engine with all the variables of Variocam, 16v and turbo, well, have fun!
Besides, isn't the 8v lighter, and leaves more room in the bay for peripherals?
Bob
08-13-2007, 10:42 PM
#18
well, id try to use the 16V head at the least...the best option would probably be to sell the 968 engine for $$$$ and buy a 951 block, sell the head and buy a 2.7 head. I think you'll have enough to buy the head plus most of the turbo stuff as well...Ive seen 968 engines go for over 3 grand!!
08-14-2007, 03:14 AM
#19
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parts heaven here in california recently sold a 968 engine for $4500.
why would you put a 2.7 head on a 2.5 block? How would you accomplish this (the water jackets are different)?
By the same token, how can you put a 951 head on a 3.0 block?
why would you put a 2.7 head on a 2.5 block? How would you accomplish this (the water jackets are different)?
By the same token, how can you put a 951 head on a 3.0 block?
08-14-2007, 03:38 AM
#20
Three Wheelin'
951 head can be put on 3.0 block because you can modify water jacket and enlarge the combustion chamber. You can't make 104mm bore combustion chamber on 2.7 head to fit reasonably to 2.5 block 100mm bore.
WHY would one ruin the technology of the generously flowing 16v head on 968 and put 8v head to it?? Beats me.
If one has to say "this is cheaper", here's news: it's not. At least by a reasonable margin.
Markus951 just used thicker Cometic head gasket and that's it, car runs like a champ.
WHY would one ruin the technology of the generously flowing 16v head on 968 and put 8v head to it?? Beats me.
If one has to say "this is cheaper", here's news: it's not. At least by a reasonable margin.
Markus951 just used thicker Cometic head gasket and that's it, car runs like a champ.
08-14-2007, 03:40 AM
#21
Three Wheelin'
And one more thing: I've programmed many engines to run standalone, including VarioCam and it's not a rocket science, though definitely not for everyone.
If you wan't to do it, do it properly.
If you wan't to do it, do it properly.
08-14-2007, 03:21 PM
#22
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Yeah that's what I always thought, just use a thick headgasket and move on. I have to go read markus' thread... but it's so long.
08-14-2007, 07:28 PM
#25
Originally Posted by Todd157k
much cheaper way to go...
http://www.ststurbo.com/
These turbo systems go near the end of the exhaust and then feed it back up to the intake. Some tracks do not allow them yet because the oil lines have to run to the rear of the car and there's some concern about them bursting/leaking. That will probably change soon though.
http://www.ststurbo.com/
These turbo systems go near the end of the exhaust and then feed it back up to the intake. Some tracks do not allow them yet because the oil lines have to run to the rear of the car and there's some concern about them bursting/leaking. That will probably change soon though.
09-08-2007, 12:58 AM
#27
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I am starting my project this month. 968 turbo with the 3mm cometic head gasket. 951 rods, 951 plumbing,better turbo, modest 8-12lbs should do it at 9.0 compression. Good fuel , should put close to 400hp to the wheels ???
Where are the specs on that car Zoran ??
Where are the specs on that car Zoran ??
