1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

In need of some input.. 12A Sigma / 13BTII

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Old 10-15-08, 10:28 AM
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In need of some input.. 12A Sigma / 13BTII

So I am at a crossroads, I have found myself a GSL-SE shell and now I need help deciding what to run.

Should I stay with my Carb Turbo?

12A StreetPort + SIGMA Kit

Or should I go and sell this motor with the Sigma kit, and go TII or REW...

If I do sell would this little 12A with the kit would it pay for a TII or REW?

I like the simplicity of the Carb set up, But I want more Boost...


Any and all input will be appreciated.
Old 10-15-08, 11:08 AM
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More info on this sigma kit? It won't pay for your next setup. First you'd have to decide what kind of motor are you getting, most likely it will need a rebuild to be safe. Then do you want have it pinned and ported? After that you have to consider using the stock turbo or upgrading it, stand alone ECU, intercooler kit, injectors, etc. Will get pricey.
Old 10-15-08, 01:09 PM
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What info would you like? Its technically the old HKS kit
Old 10-15-08, 01:40 PM
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Oh nice was just wondering. How much power are you making right now and with what boost? If you consider selling it how much do you think you'd sell it for?
Old 10-15-08, 02:03 PM
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How much power......I have no clue.
I had it running for a short period of time ((@5PSI) because I ran out of bigger jets for the Webber) then I had to remove the engine out of the car as it was rotten (the car).

For power as good as you can tune a Webber 48IDA..
I tried to find info here and in other places with no luck so I wont just throw numbers in the air.

As for price.. thats why Im asking for suggestions... to see my options.

here are some pics from an older post I made:
https://www.rx7club.com/showthread.p...ht=sigma+turbo
Old 10-15-08, 04:50 PM
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keep the sigma, re jet and up the boost. it will make pleanty of power with wayyy less money. if you need help pm me

you can make close to 400 rwhp easily
Old 10-15-08, 05:27 PM
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Yea PM Robert he's the master of disaster when it comes to blowthru turbo setups!
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