i have a brand new tank from nissan sitting on the floor here, and its definitely steel! Very easy to fabricate on. For those of you willing to fabricate on to your gas tank, I see no reason to go so far as to just cut the tank in half and weld it shut to keep it that way... if you already have the tank cut in half, just add proper baffles and trap doors and then weld it back together and retain full tank volume.

Christ, maybe that's the best solution here... someone create a program where they offer modified steel tanks... if a core exchange is included, maybe it would be the cheapest and most effective fix to our problem???

^^^ thats a pretty labor extensive route.. I believe much more costly than a good surge canister setup. But, it does solve the problem at its very ROOT, which I am a big fan of doing.

For those who havent caught my thread about it... http://www.the370z.com/track-autocro...l-product.html

We are now entering production on the solution we have tested by the Performance Motorsports team. I posted over there about it to get a head count for people in for the first batch. Production will begin in a day or two and we are trying to determine how much material to order for some of the parts we dont have the billet we need in stock for. I put all the details I have in that thread, those who sign up will get more specific details via a mailing list.

Fuel starvation on the side of the freeway. Fml

Fuel starvation no more, thanks to Phunk!

more weight reduction and weight placement



19.4lbs


http://i2.photobucket.com/albums/y49...ps4a70d732.jpg

Man we are working hard for some weight reduction!!!!!!!! :roflpuke2:

I think that's more the inexpensive fuel starve fix, weight reduction is just an added bonus!

exactly I already had the car apart so it was not a big deal to drop the tank I'm going to a fuel cell next year anyway so not that big of a deal I think

From what I remember AE Performance pretty much took a stock pump and installed on Driver side, with a switch to turn on only when needed/track.

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?

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

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.

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.

GET A RRP issues solved

Fuel starvation
 

I've had this happen to me twice since I bought my Z and I was just short of half tank. The first time I was entering a freeway ramp to merge into the freeway. The entrance was a nice turn so I dropped it into 3 from 4. I was going about 42 mph when I entered the ramp. I shot out the ramp into the freeway at 75 mph. As soon as I entered the freeway I entered 4 and continued speeding until about 30 seconds into 4th I felt a slight loss of power which then led into losing complete power of the car. Luckily I was still close to the edge so I pulled over and turned off my car. But after it wouldn't want to turn on everything was reading well except my fuel. My fuel guage wasn't reading anything but I knew I had gas. After multiply attempts on turning on the vehicle I had my friend assist me with a 2 gallon gas tank. After I poured the gas into the gas tank it fired right back up with no hesitation. Shortly after I went to chevron to fill her up. She only took 12 gallons out of a 19 gallon tank. I had about 5 gallons in my tank when it shut off on me. The second time I was also entering a freeway but I wasn't speeding into the entrance due to being scared from the first time it shut off. I was going about 30 mph into the entrance when all of a sudden getting into the freeway once again it shut off. Everything felt the same as from the first time. What was strange to me was that I wasn't gunning the throttle at all nor was i taking the turn strong enough were the G force is throwing the car sideways. I run 305/30/19 on my back wheels so grip into a turn is no problem. Since these two incidents I haven't entered a freeway ramp at such high speeds unless I'm full tank or above half. It's been about two months since a situation like this has happen to me again. Could this be the same problem even though I'm not on a track ? I bought my Z used so I didn't know how the owner before me treated the car. :driving::driving: I don't really gun the throttle nor toucher the engine. Could this problem still happen to me again ?

Yes this sounds like fuel starvation and it WILL happen again. I've done it more times than i care to admit on right turn freeway on-ramps and 90 degree corners. The way to prevent this is to buy the CJM Road Race Pump, try the solution Martin mentioned regarding a 2nd pump on the drivers side or....you could try Z1's kit which uses a bladder called HydraMat.

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.

Fixed your typo. :tup:

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. :tup:

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...

Cheaper to get a Corvette :)

Sent from my SM-G930T using Tapatalk

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.

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?

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.

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

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.

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

How much fuel can you get in? I get like 6.5 haha

I'm picking up a used tank for cheap, how much does your tank hold, 9-10ish gallons?

Also, how hard and long would it take to swap tanks? I'm thinking of cutting, and doing the plate/trap door idea, I think I can really get the best of both worlds with that...thoughts?

In another post. He said his cut tank holds 6.5 gallons.

That's fine for a 20 minute DE, but anything more would be pushing it.

Any recommendations on the trap door/baffle system? I'm picking up a spare tank this week, and would appreciate any input!

Cjm rrp

:iagree:

I get a few 20min sessions.

I get about 6-8MPG and do about ~24 miles per session. Not to mention I would need to fill up 3 times to get to the track. Cutting the tank in half isn't a practical solution if it's not a dedicated track car.

Time to raise this mofo from the dead... Anyone have any first hand experience with this?

https://www.z1motorsports.com/fuel-s...it-p-9558.html