Single Turbo RX-7's Questions about all aspects of single turbo setups.

Manifolds for Early engines

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Old 10-21-04, 11:25 AM
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Manifolds for Early engines

I think my earlier question led people to think I was dealing with a older car,

Its a 1st gen engine in a sandrail. The problem isn't with room, its with port configuration...

I need an exhaust manifold to fit an old 4 port and a Fuel Injected Intake that can fit an old 4 port.

Is there anything available that isn't a total custom fab?

Thanks again
Jeff
Old 10-25-04, 11:12 AM
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I guess from the lack of replies, I can ASSume there is not anything off the shelf or easily modifiable that can fit??

Thanks,
Jeff
Old 10-26-04, 04:08 AM
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There is a company in austrailia that makes a Throttle body that will fit on a carb style 4 bbl manifold... I forgot what there called... why do you want to try to put fuel injection on a old 4 port 13b... there are SHITLOADS of carbs out there you can buy for them... space is a problem??? run a side draft... you will make more power and it will be one HELL of alot cheaper... your looking at $3500 for a fuel system and throttle body, $350 for a used carb... even if you want to run boost you dont have to worry about gasmileage in a rail... hell run a turbo a carbed motor... I modified a series 5 turbo manifold to fit a 4 port motor... I would be willing to sell the turbo that needs a rebuild and the manifold if the price was right... I dont normally get onto this section so pm me if your intrested...
Old 10-26-04, 12:11 PM
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as far as an exhaust manifold, it's fairly easy to modify an s4 or s5 manifold to fit a 12a, I had to do this to turbocharge my 12a. As far as a FI setup to work with your 12a, I've seen weber style fuel injection setups, so that you could actually use an intake manifold designed for a weber carb. That's just sometyhing youre going to have to look around for, I've seen them on ebay every once in awhile
Old 10-28-04, 03:33 PM
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Once again, I didn't supply enough info....

My engine is a 13B

Thank you,
Jeff

[s5 manifold to fit a 12a, I had to do this to turbocharge my 12a. As far as a FI setup to work with your 12a,
Old 10-28-04, 08:17 PM
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1st off I have never had a running 12a, never drove a car with a 12a, and it doesnt look like I will have a 12a for a while.
Old 10-28-04, 09:00 PM
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FURTHER MORE it doesnt take a genious to figure out that racing beat sells aftermarket holley pattern intake manifolds for EVERY MAZDA ROTARY MOTOR EVER MADE AND PUT INTO PRODUCTION (except) 10a. With the fuel injection its the same princable as setting up a v8... Lets just say the 12a was a 302 and the 13b was a 347... You take the fuel system from the 302 put it on the 347 and :O OH MY GOD ITS RUNNING RIGHT... The ******* computer would actually probly pick it up its self unless the injectors were too small...
Old 11-04-04, 08:47 AM
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WTF???
Someone wake up on the wrong side of the bed?
A holley intake isn't what I was looking for, most holley carbs don't have injectors in them, and whatever the rest of your rambling was all about, I have no idea.
I know, that I can get a throttle body adapter for a holley intake, and put injector bosses into the manifold, but I would prefer to use a manifold that was engineered for fi, and with the injectors in the optimum spot.
As far as the exhaust manifold goes, I would just like to get a manifold that will bolt up to a old 13b that I can bolt a turbo to. I can always fab something, but I would rather just buy something off the shelf and use it.

Thank you for your help


Jeff



Originally Posted by i_piss_on_hondas
FURTHER MORE it doesnt take a genious to figure out that racing beat sells aftermarket holley pattern intake manifolds for EVERY MAZDA ROTARY MOTOR EVER MADE AND PUT INTO PRODUCTION (except) 10a. With the fuel injection its the same princable as setting up a v8... Lets just say the 12a was a 302 and the 13b was a 347... You take the fuel system from the 302 put it on the 347 and :O OH MY GOD ITS RUNNING RIGHT... The ******* computer would actually probly pick it up its self unless the injectors were too small...
Old 11-06-04, 06:05 AM
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kgparts.com, they have a lot of stuff like ur looking for.
Old 11-09-04, 10:10 AM
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Thanks for the heads up.

Jeff
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