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Porsche 924 what would you have changed or done
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dreamgts  



Joined: 29 Dec 2009
Posts: 504
Location: malta

PostPosted: Tue Jul 05, 2011 5:13 am    Post subject: Porsche 924 what would you have changed or done Reply with quote

Seems not much interesting subjects lately, so Im making my effort to liven things up.
Lets say Porsche employed you to design / engineer the 924 engine
(keep in mind the original 2 litre engine)way back in the 70's what would you have changed /done/modified/ extracted/included in either the N/A or turbo engine.

A bit of specific information giving specs, reasons, advantages in the design/engineering would help make the topic more interesting.

dreamgts
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bnoon  



Joined: 12 Oct 2009
Posts: 607
Location: West Des Moines, IA USA

PostPosted: Tue Jul 05, 2011 5:24 am    Post subject: Reply with quote

The only thing specifically that stands out to me would be a larger base engine. 2.0 liters should never have made it into a Porsche. 2.5L or the later 3L would have made the base tufah a LOT more fun and the added TQ would have made the turbo cars a real FORCE to contend with back then.

Of course the new engine would have made it more expensive since they had already done all of the R&D for VW. But oh well...
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joecitizennn  



Joined: 12 Sep 2005
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PostPosted: Tue Jul 05, 2011 5:33 am    Post subject: Reply with quote

I wold have made the engine bigger and put balance shafts on it to make it as smooth as a v8.
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dreamgts  



Joined: 29 Dec 2009
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Location: malta

PostPosted: Tue Jul 05, 2011 5:41 am    Post subject: Reply with quote

Guys we must remember that the 2 lit engine did quite well during its life span in competion.
Also isnt the 2 lit bullet proof and easy to modify when funds are available? remember the DP, GT< GTS GTR AND GTP. Mods for a road legal car would or might have been considered from these models.

So not taking bigger engines and a higher price tag into consideration, what would you as an engineer have done to make a 924 NA or turbo feel like a Porsche as some say.

dreamgts
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Andrew NZ  



Joined: 22 Jun 2004
Posts: 744
Location: New Zealand

PostPosted: Tue Jul 05, 2011 10:31 am    Post subject: Reply with quote

I would have put a smaller, lighter, more powerful German designed engine in it...........oh wait, I did!!
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the_mad_electrician  



Joined: 16 Nov 2009
Posts: 1073
Location: Central Georgia

PostPosted: Tue Jul 05, 2011 10:39 am    Post subject: Reply with quote

dreamgts wrote:
So not taking bigger engines and a higher price tag into consideration, what would you as an engineer have done to make a 924 NA or turbo feel like a Porsche as some say.


Lighter weight pistons/rods, better flowing heads and slightly more compression would have been nice.
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flosho  



Joined: 01 Jul 2004
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Location: Eau Claire, Wisconsin

PostPosted: Tue Jul 05, 2011 10:43 am    Post subject: Reply with quote

Make it non-interference and add a balance shaft.
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Rattlinbone  



Joined: 21 Jun 2009
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Location: Seattle, WA

PostPosted: Tue Jul 05, 2011 11:03 am    Post subject: Reply with quote

I think it would have been cool to have the 3.0L 911SC engine in there. Keep it in the front, keep the tranny in the back, just give me the iconic Porsche engine.
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macBdog  



Joined: 16 Aug 2004
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PostPosted: Tue Jul 05, 2011 11:28 am    Post subject: Reply with quote

Non interference, balance shaft and have a crossover exhaust so the turbo is on the correct side like a 951.
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mikebola  



Joined: 07 Sep 2009
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Location: Parkside, PA

PostPosted: Thu Jul 07, 2011 3:31 am    Post subject: Reply with quote

minor bodywork changes, like flush door handles, aerodynamic mirrors, side lights that aren't mistaken for roadside reflectors on the US models... maybe some kind of a barrier between the hood and windshield so shere isn't a gap there.
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bnoon  



Joined: 12 Oct 2009
Posts: 607
Location: West Des Moines, IA USA

PostPosted: Thu Jul 07, 2011 4:31 am    Post subject: Reply with quote

dreamgts wrote:
Guys we must remember that the 2 lit engine did quite well during its life span in competion.
Also isnt the 2 lit bullet proof and easy to modify when funds are available? remember the DP, GT< GTS GTR AND GTP. Mods for a road legal car would or might have been considered from these models.

So not taking bigger engines and a higher price tag into consideration, what would you as an engineer have done to make a 924 NA or turbo feel like a Porsche as some say.

dreamgts


As a competition engine it did fine because in competition low RPM's and lag can be avoided. On the street, an extra half of a liter to full liter would have been nice.

Would also have been nice to use forged pistons and lighter/stronger rods and hardware.

External bypass valve located closer to the throttle body, intercooled, let's see what else...
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Cedric  



Joined: 27 Aug 2004
Posts: 2818
Location: Sweden

PostPosted: Thu Jul 07, 2011 5:13 am    Post subject: Reply with quote

Have to remember that it was faster than most of its competitiors back then, at least if you read reviews in old magazines. I like the simple sturdy engine, would have been perfect with turbo head hotter cam and minor tweaks to lift the power curve a bit so it would have revved about 7200 and max power about 145-150 hp. Still with retained cheap maintanance and low consumption . If it wasnt for internal politics it would surely have more than 125hp..

The turbo engine is really good for its time, FMIC and forged pistons would have been great with about 225hp. water cooled turbo a nice bonus

Larger heavy engine no thanks. Would have been nice though with an aluminum block if they could have kept the strenght.
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932kiwi  



Joined: 06 Dec 2009
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Location: Wellington N.Z

PostPosted: Thu Jul 07, 2011 8:41 am    Post subject: Reply with quote

I don't know if I would change any of the little stuff, the quirky bits give it it's character. Like window wipers on the wrong side for right hand drive cars.

The American N/A cars with only 95-110 hp was a mistake and from what I understand caused some image damage to the model.

But what I would change if I could is, I would have made the Carrera GT the series 2 turbo model.
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the_mad_electrician  



Joined: 16 Nov 2009
Posts: 1073
Location: Central Georgia

PostPosted: Thu Jul 07, 2011 9:27 am    Post subject: Reply with quote

One major thing I left out! Quicker steering! You really have to saw on the wheel if you hit back to back tight turns!
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go4carter  



Joined: 09 Feb 2011
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Location: Toronto, Canada

PostPosted: Thu Jul 07, 2011 10:06 am    Post subject: Reply with quote

LSD
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