I got my 83 Rx7 running the other day. And it starts up alright but I have to idle her at 1 grand atleast before she gets warmed up than she idles fine. And after driving around for about an hour she dies than starts up and dies again. I think its the fuel pump cutting out after getting hot, but any help would be greatly appreciated.

 

Is it the 12A or the 13B engine?
(carbed or FI?)

 

Id say adjust your cold start assist. Thats what i would have to say it is, i had a simialr problem and completely retuning the engine fixed it

 

Its a carbed 12a.

 

If you think it's fuel-related, check the float bowls when it dies. If there's fuel in them, then I'd discount the fuel pump idea.

Does it not start again until it's cooled off? Look at the electrical system. Coils, ignitors, grounds.

 

^^^ I'm with slashdawg00110....

 

It starts right up after than would die a couple of minutes later.

 

How does it die? Slowly or abrupt?

 

could be a vacuum leak, I had the same prob, found my anti-afterburn vac spot open so I plugged it.

 

The idle slowely starts dropping below 900 rpms and dies.

 

Have you checked your float levels as was suggested?