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944 vs 968 motor which is better?

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Old 12-29-2007, 11:39 PM
  #16  
333pg333
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I guess not everyone who has a turbo'd car is going to track it. Also what's wrong with turbo'ing a 3.0L16v? Except for cost, nothing. Sure you can buy and turbo a Supra to get stupid power, but what do you do with that stupid power. Drag, Drift etc (at what cost?). How many Supras do you see at the track and what are their times? If you want to build a great car with buckloads of hp/tq and drive it on the track you can. You don't have to compete but I'm sure you can over there anyway. If you want to build a conforming car to race then you can still do 16v Porsche, just not 3.0L.
Anyway, I think the poster was talking about an N/A 968 so this is a redundant discussion.
Old 12-30-2007, 12:01 AM
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ehall
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Originally Posted by 333pg333
I guess not everyone who has a turbo'd car is going to track it. Also what's wrong with turbo'ing a 3.0L16v? Except for cost, nothing. Sure you can buy and turbo a Supra to get stupid power, but what do you do with that stupid power. Drag, Drift etc (at what cost?). How many Supras do you see at the track and what are their times? If you want to build a great car with buckloads of hp/tq and drive it on the track you can. You don't have to compete but I'm sure you can over there anyway. If you want to build a conforming car to race then you can still do 16v Porsche, just not 3.0L.
Anyway, I think the poster was talking about an N/A 968 so this is a redundant discussion.
yup.


...and ST never set out to build a race car...per se. He went down a road to find the maximum limit of the 2.5.
It isn't that hard to exceed the 968's power with a fit 951 engine, stock bottom end, bigger turbo, MAF, chips and exhaust.
That was the point I was making from the get go.
We don't know the OP's intentions for his car.
Old 12-30-2007, 03:05 AM
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If you'll be content with 236 hp (I guess you could get up to 250-260 with a chip and exhaust) then use the 968 engine. It's got many advantages, ranging from subtle to obvious. The hydraulic belt tensioner is immeasurably better than the spring tensioner; oil thermostat gives heat quickly in the winter; it sounds great!

The books claim 236hp, but most 968s out there don't have that. Make sure the cams are timed right and the CC is clean of carbon, to yield proper compression - on that note, use 93 octane for full power. Here in CA we only get 91 so I have to mix in some expensive 100-octane race gas.
Old 12-30-2007, 10:49 AM
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Fishey
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Originally Posted by ehall
yup.


...and ST never set out to build a race car...per se. He went down a road to find the maximum limit of the 2.5.
It isn't that hard to exceed the 968's power with a fit 951 engine, stock bottom end, bigger turbo, MAF, chips and exhaust.
That was the point I was making from the get go.
We don't know the OP's intentions for his car.
So you can drive it on the street? and lose to my 944S2 in a strait line that has very little money into it.
Old 12-30-2007, 12:20 PM
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Yeah, get the 968 engine, NOT. Just make sure you don't get into a drag race with a maxima 3.5, altima 3.5 or a honda accord v6, or else be ready to get smoked and humiliated.
In stock form, they are slow for today's times. They brake and handle with the best of them but the engine is very lethargic (massive dual mass flywheel, heavy crank). Drive a 968 and then get into a BMW, it will feel like the 968 engine has boat anchors attached to it.
Makes me wonder why no other manufacturer ever made a 3.0 liter 4 cylinder. Yeah, typical Porsche, keep adding weight to the rotating mass to "cover" for vibrations.
Raj

Last edited by RajDatta; 01-01-2008 at 08:55 PM.
Old 07-30-2020, 01:01 AM
  #21  
Steve Hickey
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Default 968 turbo cup

Originally Posted by special tool
Ehall - the 968 is a better engine in about 9,867 ways.
Not even close.
It is an evolution from Porsche as well....

You can (and Porsche did) turbo the 968.
I believe using the 968 head, the 968 engine has VERY high limits. Like Supra high.
The 968 Turbo cup car had an 8V head from the '89 2.7L,
Old 07-30-2020, 03:13 AM
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Chris White
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Originally Posted by Steve Hickey
The 968 Turbo cup car had an 8V head from the '89 2.7L,
it only took 13 years to reply......
The following 3 users liked this post by Chris White:
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Old 07-31-2020, 12:00 AM
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Originally Posted by Chris White
it only took 13 years to reply......
Who said Rennlist wasn't full of cutting edge information?!?!
Old 07-31-2020, 06:56 AM
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968 Turbo cup car? Must have missed that one, didn't think the 968 S/RS had a standard 2.7 head casting either.



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