Fuel starvation, who else?

Nuki

So I gotta be the guy to dredge up an old forum thread but I'm currently sitting here on the side of the road with the same problem. I went around a cloverleaf at about 65 or so, probably pulling high g-force and car died about the time I hit the freeway. This shouldn't be happening in a Nismo!!!!

My gas tank shows completely empty even though it was just below half a tank when it died. This is extremely frustrating to say the least. I thought my Nismo was their "purpose built" race/track car. How could something like this not be accounted for?

Rusty

You're not the first one. Welcome to the club.

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sarmyth

I'm honestly surprised they haven't fixed the issue yet... It's been quite a number of years. I guess another reason I'm not too broken up about ditching the car.

2011 Nismo#91

1. Should happen to any decent sports car.
2. The Nismo isn't a purpose build race/track car, that's the Nismo RC. IMO it's more race "inspired". There are many short comings besides this that make the nismo not a purpose built track car, number one being no oil cooler.
3. The gas gauge is woefully inaccurate. A half tank is more like 1/3. Quarter is more like 1/8. And an eighth is more like empty, less then 2 gallons.
4. The only practical everyday solution is to be mind fuel of your fuel level and taking long sweeping turns then not full.

sarmyth

That's optimistic. I have yet to experience this in a Mustang, S2000, Miata, 911 or a Corvette.

None of which I consider "Track" cars but can turn just as hard as the Z.

Unfortunately true. It'd be nice if it was closer though and i would have expected Nissan to refine it over the years; they do this with their GTR.

For me it certainly was a love hate relationship, the car could do amazing things but oh how it would let you down in other ways. Boiling clutch fluid is another neat trick that I've never experience in any other car on the track.

Elmo370z

GET A RRP issues solved

ban25

It can happen in any high-G left turn. On the track, I get it repeatedly starting with 17 gallons of fuel. Thankfully I finally have an RRP!

When driving on the street, be mindful of sharp right turns (banked or otherwise), and try to stay above half a tank. Also, if you experience fuel starvation, my advice would be *not* to pull over and shut the engine off, but instead to straighten the car out and try to get some fuel sloshed back over to the pump. I've encountered it literally hundreds of times on the track, but never had the engine shut off or be stranded.

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Rusty

Fixed your typo.

What I used to do is when coming out of the turn and starting down the straight. Jerk the steering wheel back and forth a few times to try and get some fuel back over on the right side. Now I have the RRP, and don't have to worry any more.

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ban25

Thanks, good catch! I do the same thing, I try to track hard left after a right hairpin and it does help a little...the problem gets worse the lower you go on fuel. That lead me to top off the tank every session, which gets expensive on $10/gal race gas -- not to mention driving home on a nearly full tank of 101.

RRP is the way to go.

BTW, I hear the M4 suffers from fuel starvation under half a tank, though supposedly there's been a fix...

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MightyBobo

Cheaper to get a Corvette

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DannyGT

How do you know if its truly fuel starvation? I only ask because, I was on the track this weekend and for the most part everything went incredibly smooth and after a nice custom tune from RT Tuning, I was shocked at how incredible the car behaved on the track...

That being said, on my second run out, with about a half a tank, I started experiencing what I thought could have been knock or timing being aggressively pulled. At first I though maybe limp mode but all temps on the car were great and nice and low and it wasn't happening at a static RPM every time either, so I ruled that out...Then I thought fuel starvation but the car never felt like it was going to die and it wasn't particular hard cutting off either...

So I turned traction control off and I noticed that the VDC Off light & the traction light ended up coming on and permanently staying lit...I don't remember both being solid when I turn it off, just the VDC light. I thought that was weird. Then I tried turning VDC back on and it would not let me at all. I had to get off the course once my session ended and upon turning the car off and on, all was good again.

So what was it? Fuel starvation or something 'stuck' with VDC? basically it started happening on the long sweeping right-handed carousel and the car would accelerate and out of no where, at any particular rpm, it would hit a 'soft' redline and it would just go brrrrrppppprpppprpprpppt (try to imagine that sound LOL) and then it would accelerate again and across the next turn while trying to exit, it would BRRRRRTTRTRTRTRT again, but very mild and soft, as if the car went from being supercharged to NA while hitting some artificial but very soft redline...the car would power through it and then boom it was fine the rest of the way. I don't remember doing it on any of the left handers, but I cant say for sure.

Did I really experience fuel starvation and if so, why did TC behave that way when I tried turning it off and back on?

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PharmDZ

Ahhh you said it.... "long sleeping right-handed carousel" - it was fuel starve. Especially at half a tank... Which track were you on? I was on NJMP Lightning when it happened to me on the fast right hander after the hill going under the overpass (if you know what I mean). Forgot what number turn it was. Basically you're going about 90 and can go flat out through the turn, but I had the throttle completely cut out and then return an instant later. Really scary moment. I've even had it at 3/4 a tank.

DannyGT

This was at Pocono Raceway, on their right handed carousel-straight away...North Course to be exact.

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Wheels & Suspension AME Tracer TM02's 19x9.5F 19x10.5R w/ 265x35F & 305x30R, Hotchkis Sways, BC (BR) Racing Coilovers (Car Sold)

Rusty

With the VDC on. It wasn't helping much. It will cut power when a wheel lifts or the rear starts to step out. With fuel starve. I've had it happen, and not kill the engine. Come out of the turn. The engine dies down, and loose power, then pick right back up after I jerk the steering wheel left and right to get the fuel moved back over to the right side of the tank.

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synolimit

FYI I can say tank cut in half works 100%.

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