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-   -   Nitrous + Sidedraft carb? (https://www.rx7club.com/rotary-car-performance-77/nitrous-sidedraft-carb-1031417/)

Starfox07 04-04-13 12:10 PM

Nitrous + Sidedraft carb?
 
I've got a stockport S3 13b with a Dellorto 48 DHLA. Nitrous occurred to me. Anyone do this before?

Starfox07 04-06-13 09:55 AM

Did a little bit of research. I was under the impression that I could do a 'dry' setup, but it turns out a carb cannot compensate for the additional oxygen and I would go super and lean and blow my engine.

It would be possible, however, to tap my upper intake manifold and run a 'wet' direct port setup. Since I have my stock efi fuel pump, I think I could plumb in a secondary regulator running from the return of the first to supply fuel to nozzles. Anyone know about how much pressure these nozzles need? I suppose it depends on the size of the nitrous shot.

Keeble 04-06-13 10:56 PM

In theory that should work, but I would plumb in another fuel pump for just the nitrous

scathcart 04-07-13 11:45 AM


Originally Posted by Starfox07 (Post 11430818)
Did a little bit of research. I was under the impression that I could do a 'dry' setup, but it turns out a carb cannot compensate for the additional oxygen and I would go super and lean and blow my engine.

It would be possible, however, to tap my upper intake manifold and run a 'wet' direct port setup. Since I have my stock efi fuel pump, I think I could plumb in a secondary regulator running from the return of the first to supply fuel to nozzles. Anyone know about how much pressure these nozzles need? I suppose it depends on the size of the nitrous shot.

They need whatever pressure you supply them. Nozzle size is determined by your fuel pressure, not the other way around.


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