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Differences between 77' and 85' car

 
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JjyKs  



Joined: 05 Oct 2015
Posts: 114
Location: Finland

PostPosted: Sun May 08, 2016 5:59 am    Post subject: Differences between 77' and 85' car Reply with quote

Hi guys,

I just noticed that our most used used car website changed their way handling not roadworthy cars (i've been thinking that it's strange how they're missing completely), and was surprised when i found out that there are couple super cheap 924's there.

The one that i'm looking at is a 77' model, last time driven in 2002. It's a bit trashy looking, but the engine sounds very good in the video the seller posted.

I was thinking about picking her up as a winter car, and i'd just like to know how much does it differ from my '85? Does it have points ignition?
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ideola  



Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI

PostPosted: Sun May 08, 2016 9:02 am    Post subject: Reply with quote

The very early cars had a different cam profile, smaller valves, and points ignition...at least here in the US. I'm not 100% certain in Europe, as the Porsche tech specs booklet indicates the same power output throughout the ROW run from 76-85, which seems a bit hard to believe if the ROW cars had the same lame-a$$ head as the one in the US.
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ideola  



Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI

PostPosted: Sun May 08, 2016 9:10 am    Post subject: Reply with quote

After looking through all of the 924 PET files, it appears that the lame-o cam profile for 77 was unique to the US 77 model. So that being the case, the only difference for ROW cars appears to be the points-based ignition, which according to PET would have been in the 76-79 ROW cars.
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JjyKs  



Joined: 05 Oct 2015
Posts: 114
Location: Finland

PostPosted: Sun May 08, 2016 11:38 pm    Post subject: Reply with quote

Another thing i figured out by googling is the transmission. 4 gear audi based vs 5 gear one.

Since i'm moving to edis on my 85 i think that i'll move the never ignition system to this 77.
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Cedric  



Joined: 27 Aug 2004
Posts: 2809
Location: Sweden

PostPosted: Mon May 09, 2016 4:23 am    Post subject: Reply with quote

If the 77 is the same as the 76 almost everything differs, the early car feels like pre series cars. Body, suspension, electronics, injection etc, almost everything is a little different to thr late cars. They are lighter but noisier than the later cars, probably due to the simple and rigidly installed rear axle, and less insulation. But from a driving perspective very sinilar. Best performance modification except for suspension is changing to a 5 spd, makes a great difference.
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