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Nm35 Fuel Gauge Weird?

garetb16

By garetb16,
in Four Door Family & Wagoneers

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pixel8r Mentor

pixel8r

Posted
Posted

This is interesting. I have no powerduct, but I did run for a few months with the little panel on the airbox removed. Not sure how much difference the powerduct would make vs not having anything there. The airbox sits so close to the front that I figured the only difference would be that it might suck in hot air when I wasn't moving, but in theory that should be better for fuel economy, not worse.

Recently I put the little plastic panel back on and realised the difference it made. With the panel back on again, I now have much better low-end response, smoother power delivery and the car feels noticeably faster. Fuel economy also seems to have improved a little, but not by enough to make any great claims about it. The main difference was in the ability to build boost at low revs...it seems having the airbox closed is good for building boost pressure early.

Top end performance was definitely improved with the panel removed, so I may have had a heavier right foot more often...

iamhe77 Grand Master

iamhe77

Posted
Posted

hmm... I put a Powerduct on last weekend and noticed an improvement in responsiveness almost straight away (my CAI has been disconnected until I make a new one that fits with the front bar). The difference was like trying to suck air in with your hand over your mouth (closed airbox and only stock funnel) as opposed to just breathing normally (with Powerduct).

Didn't really notice any additional sound although it may be a bit difficult to hear over my turbo and exhaust :banana:

The engine does seem to have a bit more of a sense of urgency about it with the duct on.

To each their own I guess, but the thinking that turbo cars need as much air to the intake as possible would make you think that the Powerduct would be more a positive than a negative for our cars, no?

andy65b Veteran

andy65b

Posted
Posted

I don't see either how by limiting air intake it could make the turbo spool any earlier.

It is hard to imaging how it could help low down power but perhaps it is like the opposite of a restrictive exhaust on a NA car where that helps torque.

From memory it is just a small difference anyway but I kept mine off as I liked the feeling it made to the power delivery at the top end.

Cheers

Andy

pixel8r Mentor

pixel8r

Posted
Posted

I dont understand why mine felt faster when I put the little panel back on. I cant explain it. But it definitely does seem faster or at least more responsive off the line now. It doesn't make sense...

There must be a reason why Nissan included the powerduct with all n/a versions of these engines and not with the turbo version.

andy65b Veteran

andy65b

Posted
Posted

emissions

I dont understand why mine felt faster when I put the little panel back on. I cant explain it. But it definitely does seem faster or at least more responsive off the line now. It doesn't make sense...

There must be a reason why Nissan included the powerduct with all n/a versions of these engines and not with the turbo version.

  • 1 year later...
Sage222 Rising Star

Sage222

Posted
Posted

going to reactivate this thread.. hoping someone has worked out something to fix the fuel gauge.. mine is shocking can jump a quarter of a tank between starts.. i am on gas though like to keep at least a 1/3 in the tank.. though every few days it says i am near empty..

anyone got a fix?

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