djdanno

Well, It's not here on the performance mods, but over on z31.com a lot of thoose z guys have a larger maf from a 93' Ford Cobra Mustang, well, I stopped by my local ford dealer today to get a price quote and it's a little over $300. Is it really worth it? Or is there perhaps a cheaper alternative out there. I hope to do this along with the cai i'll get and the larger throttle body, and upgrade the exhaust sometime too.

maximase86

iTrader: (24)

Well on an N/A car, it might help a little, but your probably not going to see huge gains. May 1 or 2hp if I was being optimistic. You could almost go with a z32 maf...just rewire it for your car just like you would with a Cobra MAF. However if your boosted, it'd probably make more of a difference.

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djdanno

Hmm... I've heard that the most gain from a bigger maf is not hp gain but throttle response, here's some stupid questions, what is the z32? and just how much bigger is this maf from stock maxima maf?
Also apparently a Cobra maf requires your computer to be reprogramed by JWT, I wonder if the maf off the z32 would require the same.

maximase86

iTrader: (24)

When I say z32, I'm referring to the 90-96 300zx. You can adapted it for use on our cars, but that requires doing custom wiring to make it work. They are a little bit bigger than what we have...but they seem to be pretty popular with some of the boosted maxima guys that are running over 300whp.

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maximabeast86

well....i heard about something called a tornado....its like a twisted peice of metal that goes in your intake...it supposedly gives you 20+ more hp.

maximase86

iTrader: (24)

I'm sorry....but that's total boll shiat....

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djdanno

yeah, that tornado almost ranks up there with the "electric turbocharger" found on ebay. Anyhow, what i might do is pop it off and maybe grind away some of the metal inside, it'll increase the airflow a bit, course that's if there's enough metal to take away inside. This has been done alot before on camaroes mostly.

Bleach

The MAF is a bottleneck only if you have a larger throttle body and ported intake manifold to match the throttle body.

The Tornado doesn't add 20hp, but it might add 1-4hp depending on your setup. The squirling air effect is true. Intake manifolds and intake ports are left rough from the casting on purpose to create disturbances in the air flow. I think people expect too much. If you have some huge carbureted V8, that tornado will have huge amounts of airflow going through it and the carb's mixture will be improved slightly so the power difference from stock is higher than a newer fuel injected 4-cyl motor that is near its limit in efficency already with much less airflow anyway.

On the older inline six engines (Datsun Z, 1st gen max) they use Bosch fuel injection. The 80's BMW 325 uses the same fuel injection system on thier 2.5 and 2.7L straight six. Those flap style AFM work on the Datsun well, and are easy to adjust the mixture level with a screw inside the AFM.