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First gen. RX7 questions


alexideways

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Hi, anyone on this site that has experience with first gen. Rx7s??????

 

I may have a deal on one but, wanted to know what critical points to look for on this particular model, aside from the engine, which I already know has been rebuilt, before I buy, to know if it's a DEAL or not...

 

Thanks.

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There were lots of running changes, newer ones seem always to have the good stuff.

'79s were the lightest, at least after the big early bumpers are lightened/ They also had old RX2 type struts, brakes, and hydraulic line fitting pitches. Good luck trying to find brake parts for those.....

'79s and '80s had the thermal reactor exhaust instead of a catalyst. They were jetted rich and go better leaned out. The '79 still had points, very bad. The '80 had a one year electronic ignition. The later distributors are easy swap parts to upgrade them.

All of the carbs are trouble. Aftermarket Mikuni/Weber single side draft carbs are popular "fixes".

The 12a engines seem to last about 150 to 200K.

The disc brake rear from the GSL models all had nice clutch type lsds, they swap right into other cars. All 12a cars got a 3.9 ratio diff.

All had the goofy binding rear axle problem. Track cars "solved" this by stiffening the Front and leaving the rear soft. Weird, but it works. Rear sway bars generally are removed.

All Wheel bearings got bigger in '84, a good thing.

The '84, '85 GSLSE models were the best. Bigger fuel injected motors that seem to last 300K, 4 wheel disc brakes, 4:11 posi diffs. Rotaries LOVE fuel injection! Wheel pattern changed for them to the Datsun pattern though so little is really interchangeable to the standard cars. They are not very common though.

Generally, the '86 to '90 cars are the bigger bargain even if they are not as pretty.

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