2nd Generation Specific 1986-1992 Discussion

The question is more power!

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Old 07-12-2007, 09:46 PM
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Having a talk with my old school rotary dad. He thinks using just for cause.. S5 N/A block with a Dellorto 48 DLHA with appropriate exhaust will make more power then the stock EFI system? what do you guys think. start crunching the CFMs. I would also say from my point of view I guess the carb would be more tuner friendly...oh wait the Rtek 7 damn
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Old 07-13-2007, 09:57 AM
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i think so too, the mazda intake manifolds are kinda restrictive. i think you're looking in the 165-175 rhwp range with the rtek/safc/stock intake setup, and maybe 175-185 with a carby/48mm tb
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Old 07-13-2007, 10:07 AM
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Yea I guess I didnt think about the whole manifold side of it. I was just looking at dumping as much air/fuel as possible..Good point. the RB unit for the Dellorto looks like it flows very well.
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Old 07-13-2007, 12:04 PM
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keep in mind carb...creates 13mpg or less in the city ...and 15mpg or less highway ....but it will give a 10-20hp gain....
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Old 07-13-2007, 04:47 PM
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carb==more tuner friendly is relative, i think



easier to tune than efi just because you just turn some screws, etc. personally, i prefer efi just because of the extensive things you can tune that you couldn't control with a carb



so yea, carb=insta power, but theoretically couldn't you get the same power out of a proper tune? (not using our ecu, of course, lol)
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