NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   -   First gen carb (https://www.nopistons.com/1st-generation-specific-16/first-gen-carb-6567/)

falcoln0014 10-16-2002 09:46 AM

Hello,



I have replaced almost everything under the hood now...re-jetted nikki with about 500 miles on it, 2 new coils, new radiator and all 3 hoses, new water pump...ehh...probably missing something there.

I'm about to put on a new alternator...anyone know where to get something with more power than 55 amps...and also where to get replacement wiring to connect to it?

I would like something over 100 amps if possible...gonna install a high power stereo in a bit.



My big problem right now is I'm only getting about 11 mpg...anyone know how to adjust the carb to get better mileage? I can't afford to drive more than a few days the week right now....used to get 16-18 before I got this new engine.



any help will be appreciated.



thanks,

falcoln0014

j9fd3s 10-16-2002 11:42 AM

i was gonna say sunk floats, but it could be the re jetting too.

the fd alternator is 100amps and its almost a bolt in (you have to swap pullies)



mike

Racer X 10-16-2002 06:25 PM


Originally Posted by j9fd3s' date='Oct 16 2002, 08:42 AM
i was gonna say sunk floats, but it could be the re jetting too.

the fd alternator is 100amps and its almost a bolt in (you have to swap pullies)



mike

I thought you had to change the alternator harness to make it work????Does it bolt straight on???I might buy one.I need my sterio. https://www.nopistons.com/forums/pub...#>/biggrin.png

j9fd3s 10-16-2002 09:26 PM


Originally Posted by Racer X' date='Oct 16 2002, 03:25 PM
[quote name='j9fd3s' date='Oct 16 2002, 08:42 AM']i was gonna say sunk floats, but it could be the re jetting too.

the fd alternator is 100amps and its almost a bolt in (you have to swap pullies)



mike

I thought you had to change the alternator harness to make it work????Does it bolt straight on???I might buy one.I need my sterio. https://www.nopistons.com/forums/pub...#>/biggrin.png[/quote]

you do have to change the harness. they have a little adaptor thing for 89-91, so if you get that it makes it super easy to do. http://www.brfoundation.com/RX-7/alternator2.htm



mike

Racer X 10-17-2002 12:18 AM


Originally Posted by j9fd3s' date='Oct 16 2002, 06:26 PM
[quote name='Racer X' date='Oct 16 2002, 03:25 PM'][quote name='j9fd3s' date='Oct 16 2002, 08:42 AM']i was gonna say sunk floats, but it could be the re jetting too.

the fd alternator is 100amps and its almost a bolt in (you have to swap pullies)



mike

I thought you had to change the alternator harness to make it work????Does it bolt straight on???I might buy one.I need my sterio. https://www.nopistons.com/forums/pub...#>/biggrin.png[/quote]

you do have to change the harness. they have a little adaptor thing for 89-91, so if you get that it makes it super easy to do. http://www.brfoundation.com/RX-7/alternator2.htm



mike[/quote]

That looks cool but damn theres lots of empty spotswhen you're swap that alternator on to a first gen.There is only the one harness and the B+ wire to hook up instead of the multiple plugs that one has.

j9fd3s 10-17-2002 12:52 PM

that one has the same 2 wires as the first gen. b+ and the gauge output, the connector is different thats all



mike


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