I have a well running S5 I just rebuilt about a month ago. I will be coming into some money soon and I have given myself a limit of 5k to spend on the RX7.

My plans include.. T2 trans, T2 drivetrain, bridge or 1/2 bridge, cast iron manifold, 20x9x5 FMIC or greddy 2row, 60-1 1.15ar or TO4R 1.0ar, 38mm wastegate, 720cc /1600cc injectors, and haltech e6x with boost solenoid setup.

Now I don't know if I should go with the trouble of buying a jspec and rebuilding it or just run low boost and to the setup on my S5 n/a, even if I have to run turbo rotors in it.

Reason why I ask this is with the 5k limit me and my wife sat down and discussed, if I go with the jspec and I open the motor and every seal is pretty much shot it will end up costing alot more and I wont have enouhg to get good stuff, example..

Greddy FMIC turn into a ebay special 300 buck FMIC
60-1 turns into T04R
etc....

Ideas, opinions? Oh and the labor and porting doesn't cost me anything but time.

 

If the car is running fine, you should just keep it how it is and drive it, have the money put to the side and save it. Then, if anything happens, you can do the turbo swap. No point in messing with it with a fresh rebuild.