Major Track Faults of the 370

cossie1600 · 02-14-2011, 12:45 PM

Quote:

Originally Posted by ChrisSlicks

At least when I go to Summit Point this year the Karussel is a left hander.

It wouldn't surprise me if you get the cut out in T1. That type of long right hand corner will get you fuel starve. Now that I think about it, maybe the two turns after hte caroussel. If I recall correctly, Summit Point has gas station. If not, you are screwed as the nearest gas station if a few miles away. Bring 2 5 gallon jugs and fill it after each sessions

ChrisSlicks · 02-14-2011, 02:00 PM

Quote:

Originally Posted by cossie1600

It wouldn't surprise me if you get the cut out in T1. That type of long right hand corner will get you fuel starve. Now that I think about it, maybe the two turns after hte caroussel. If I recall correctly, Summit Point has gas station. If not, you are screwed as the nearest gas station if a few miles away. Bring 2 5 gallon jugs and fill it after each sessions

Yes, I always bring 2 fuel jugs with me. I don't like driving off to get fuel every session. Plus this will be an open track event, will be able to run for any length of time at any time.

flashburn · 02-14-2011, 10:44 AM

Looks like the two big sweeping turns at Atlanta Motorsports Park are both left, so that's good. I was especially worried about that track because of the elevation changes and the banking on some of the turns.

Any issues at Road Atlanta or Miami-Homestead?

Shamu · 02-14-2011, 11:37 AM

OK so guess rather than fixing it I will just drive tracks with Left hand turns.

Let me see. ...Laguna Seca is good! Only 3 real right handers.

Infineon is bad. Lots of right handers some with elevation changes.

Or maybe I can figure out a fix. LOL! I still cant believe people have been tracking these cars for nearly 3 years without looking at this seriously if its truly an issue.

Mike · 02-14-2011, 02:25 PM

Quote:

Originally Posted by flashburn

Looks like the two big sweeping turns at Atlanta Motorsports Park are both left, so that's good. I was especially worried about that track because of the elevation changes and the banking on some of the turns.

Any issues at Road Atlanta or Miami-Homestead?

Road Atlanta turns 1 and 7. I actually stalled coming out of 7 and had to get the car towed off. that is how I discovered it.

flashburn · 02-14-2011, 02:32 PM

Quote:

Originally Posted by Mike

Road Atlanta turns 1 and 7. I actually stalled coming out of 7 and had to get the car towed off. that is how I discovered it.

That sucks. Wish there was an easy fix for this.

Shamu · 02-14-2011, 02:40 PM

Im a long term Porsche guy and I will go after this. When my carbs were fuel starved on the track I had them custom baffled, when I got vapor lock I changed lines and put different pump in place, etc.

I'm sure there is a simple elegant solution. I just need to see diagrams etc. We cant have our Z's choking for fuel on the track. Thats just unacceptable in my book. Running a full tank isnt a solution.

flashburn · 02-14-2011, 12:00 PM

Well, we know what the issue is (U shaped gas tank), but there just doesn't seem to be an "easy" solution.

Mike · 02-14-2011, 02:35 PM

easiest is to just fill up between sessions. The only place where it has really been a problem is Road America, and I probably won't be there again. There I was getting it at one dot from full, but the Carousel exits at over 100mph and really pulls some right hand g's.

cossie1600 · 02-14-2011, 03:57 PM

If you can come up with a CHEAP fix, we would appreciate it.

Here is another tip. Bring multiple credit cards with you, the machines usually don't like you swiping at the gas station every 30 minutes!

Shamu · 02-14-2011, 08:17 PM

Quote:

Originally Posted by cossie1600

If you can come up with a CHEAP fix, we would appreciate it.

Here is another tip. Bring multiple credit cards with you, the machines usually don't like you swiping at the gas station every 30 minutes!

Lol! Cheap? Probably not. But what's 50lbs plus of weight reduction worth to you?

flashburn · 02-14-2011, 05:20 PM

I think I'm going to just do what Mike does (for now) and bring some 5 gallon jugs with me when I go to Sebring.

I think with 2 5 Gallon jugs, that should be just enough for 4 track sessions, give or take.

edit: Actually, since I have the Zenclosures sub box, I'm not sure I can fit 2 5 gallon jugs in my trunk.

Shamu · 02-14-2011, 08:15 PM

So how much more weight are you willing to haul around? Gas weighs 6.1 lbs per gallon. I guess only positive is that weight is being added to rear of the car. But if I can run with say 12 gallons less that means I'd be running 73 lbs less than someone who hasn't fixed this issue.

cossie1600 · 02-14-2011, 08:38 PM

I don't race for money, so there is no way i am going to pay a couple hundred bucks to modify my tank for a few tenths of a second. Plus in the time trials I run with, any mods to the tank will kick me out of the class. It's just not worth it to me. Plus you are talking to someone who is 200lbs, so not sure weight savings help me at all.

On a separate note, anyone know what the pickup tube looks like. Is it possible to either extend it or tee it to the other side of the tank?

Speaking of fuel starvation, my 350 never had that problem when I got it new. When I took it in for a fuel recall first, I ended up getting the hesitation at 1/2 tank. I guess I am just used to $hit like that from Nissan.

spearfish25 · 02-14-2011, 08:39 PM

The problem with weight reduction in the Z is that it's much easier to remove it from the rear than the front. The fuel tank is under the parcel trays behind the seats...prime weight position. Someone needs to invent a radiator mounted, fascia shaped helium reservoir to provide some buoyancy in the front.

02-14-2011, 10:44 AM	#3 (permalink)
flashburn A True Z Fanatic Join Date: May 2009 Location: Central Florida Posts: 1,884 Drives: '12 Corvette GS 6M Rep Power: 19	Looks like the two big sweeping turns at Atlanta Motorsports Park are both left, so that's good. I was especially worried about that track because of the elevation changes and the banking on some of the turns. Any issues at Road Atlanta or Miami-Homestead? __________________ Current Ride: 2012 Chevrolet Corvette Grand Sport Centennial Edition Carbon Flash 6M Previous Ride: 2009 Nissan 370Z Sport Platinum Graphite 7AT

02-14-2011, 12:00 PM	#8 (permalink)
flashburn A True Z Fanatic Join Date: May 2009 Location: Central Florida Posts: 1,884 Drives: '12 Corvette GS 6M Rep Power: 19	Well, we know what the issue is (U shaped gas tank), but there just doesn't seem to be an "easy" solution. __________________ Current Ride: 2012 Chevrolet Corvette Grand Sport Centennial Edition Carbon Flash 6M Previous Ride: 2009 Nissan 370Z Sport Platinum Graphite 7AT

02-14-2011, 02:35 PM	#9 (permalink)
Mike The370Z.com Sponsor Join Date: Jun 2009 Location: Loganville, GA Posts: 5,944 Drives: 370z Rep Power: 2186	easiest is to just fill up between sessions. The only place where it has really been a problem is Road America, and I probably won't be there again. There I was getting it at one dot from full, but the Carousel exits at over 100mph and really pulls some right hand g's. __________________ NISSAN: 75 280Z / 86 300ZX GLL /87 Sentra SE / 03 350Z / 23 Z Porsche: 93 968 / 23 Macan GTS / 93 968

02-14-2011, 05:20 PM	#12 (permalink)
flashburn A True Z Fanatic Join Date: May 2009 Location: Central Florida Posts: 1,884 Drives: '12 Corvette GS 6M Rep Power: 19	I think I'm going to just do what Mike does (for now) and bring some 5 gallon jugs with me when I go to Sebring. I think with 2 5 Gallon jugs, that should be just enough for 4 track sessions, give or take. edit: Actually, since I have the Zenclosures sub box, I'm not sure I can fit 2 5 gallon jugs in my trunk. __________________ Current Ride: 2012 Chevrolet Corvette Grand Sport Centennial Edition Carbon Flash 6M Previous Ride: 2009 Nissan 370Z Sport Platinum Graphite 7AT

02-14-2011, 08:39 PM	#15 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1857	The problem with weight reduction in the Z is that it's much easier to remove it from the rear than the front. The fuel tank is under the parcel trays behind the seats...prime weight position. Someone needs to invent a radiator mounted, fascia shaped helium reservoir to provide some buoyancy in the front. __________________ 2013 Cadillac V-Wagon, RIP Z

02-14-2011, 11:37 AM	#4 (permalink)
Shamu A True Z Fanatic Join Date: Jan 2011 Location: Nor Cal Posts: 1,059 Drives: 370Z Racecar Rep Power: 20	OK so guess rather than fixing it I will just drive tracks with Left hand turns. Let me see. ...Laguna Seca is good! Only 3 real right handers. Infineon is bad. Lots of right handers some with elevation changes. Or maybe I can figure out a fix. LOL! I still cant believe people have been tracking these cars for nearly 3 years without looking at this seriously if its truly an issue.

02-14-2011, 02:40 PM	#7 (permalink)
Shamu A True Z Fanatic Join Date: Jan 2011 Location: Nor Cal Posts: 1,059 Drives: 370Z Racecar Rep Power: 20	Im a long term Porsche guy and I will go after this. When my carbs were fuel starved on the track I had them custom baffled, when I got vapor lock I changed lines and put different pump in place, etc. I'm sure there is a simple elegant solution. I just need to see diagrams etc. We cant have our Z's choking for fuel on the track. Thats just unacceptable in my book. Running a full tank isnt a solution.

02-14-2011, 03:57 PM	#10 (permalink)
cossie1600 A True Z Fanatic Join Date: Jun 2009 Location: californee way Posts: 5,380 Drives: 370, Leaf Rep Power: 30	If you can come up with a CHEAP fix, we would appreciate it. Here is another tip. Bring multiple credit cards with you, the machines usually don't like you swiping at the gas station every 30 minutes!

02-14-2011, 08:15 PM	#13 (permalink)
Shamu A True Z Fanatic Join Date: Jan 2011 Location: Nor Cal Posts: 1,059 Drives: 370Z Racecar Rep Power: 20	So how much more weight are you willing to haul around? Gas weighs 6.1 lbs per gallon. I guess only positive is that weight is being added to rear of the car. But if I can run with say 12 gallons less that means I'd be running 73 lbs less than someone who hasn't fixed this issue.

02-14-2011, 08:38 PM	#14 (permalink)
cossie1600 A True Z Fanatic Join Date: Jun 2009 Location: californee way Posts: 5,380 Drives: 370, Leaf Rep Power: 30	I don't race for money, so there is no way i am going to pay a couple hundred bucks to modify my tank for a few tenths of a second. Plus in the time trials I run with, any mods to the tank will kick me out of the class. It's just not worth it to me. Plus you are talking to someone who is 200lbs, so not sure weight savings help me at all. On a separate note, anyone know what the pickup tube looks like. Is it possible to either extend it or tee it to the other side of the tank? Speaking of fuel starvation, my 350 never had that problem when I got it new. When I took it in for a fuel recall first, I ended up getting the hesitation at 1/2 tank. I guess I am just used to $hit like that from Nissan.

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