370z requires premium fuel?

frost · 02-08-2009, 11:14 AM

Quote:

Originally Posted by Crash

When E85 becomes more popular in California (if our sh!thead of a governor gets his stupid squishy head out of his lazy republican @ss) I'll be tuning my Z for E85.

I've been reading that people who convert and tune for E85 are making quite a bit more power... And forced induction is safer because the compression for E85 is supposed to be higher for E85.

Any thoughts?

I ran across a website that where the topic of discussion was whether cars used for racing should switch. Here is a quote:
"Driving Habits: If you drive your show/race car just once or twice a year you may want to stay with gas because E85 works like a sponge grabbing all the water it can from the air. So driving some on a weekly basis would be good. If you use E85 keep it moving don't store it! If you need to park your car for long terms you should fill your tank with gas and stabill. This will provide you with some protection from rust and fuel system problems."

Not sure why grabbing all the water from the air would be a bad thing though. Maybe cause of dilution to the oil?

nogoodname · 02-06-2009, 09:24 AM

on the G's....premium fuel is recommended

I've heard really bad stories of ppl putting in regular fuel...car was all jerky and smelly.....idle super rough....bad times

Crash · 02-07-2009, 07:25 AM

He can show up in a bubble and would be welcomed with the following conditions:

He MUST fix the crap he broke

He MUST be wearing clothes when he shows up! LOL

3SeventyZ · 02-08-2009, 09:41 AM

I use nothing but premium fuel here.

Crash · 02-08-2009, 03:58 PM

That's a good question. I don't know about that. You're right that there'd be dilution, and there would be a problem when it came time to run the car and your motor gets a gulp of water instead of fuel. But you also have to have special fuel lines for E85, but I'm wondering if they're stainless steel or if they can rust.

frost · 02-08-2009, 04:26 PM

Rust is worrying enough, but changing the viscosity of the oil is downright scary. Last thing you want is premature wear because of a change to the oil. Obviously I wouldn't make the change until the car is out of warranty, but it's definitely worth looking into because you're right; you can get good power out of E85.

Crash · 02-09-2009, 03:56 AM

If you tune for both, you should be able to run both without a problem. The only physical changes you need to make are the fuel lines... They need to be stainless. Aside from that and tuning, there's not much more to converting to E85. I will DEFINITELY be using it when I go forced induction. I'll already be voiding my warranty, and 105 Octane is nice when you're only paying 2.40/gal!

frost · 02-09-2009, 06:56 PM

Keep us updated as you progress, I'd like to see how that works out.

Crash · 02-10-2009, 06:17 AM

Yeah. Need to buy the car first! LOL

4MYZ370 · 02-10-2009, 03:24 PM

.

In cal we can only get 92 octane(oc)

To get to 93oc we need to add 100oc unleaded - i,m a little off maybe with mix - but this is close

14 gals 92oc mix 2.5gals. 100oc and then drive 300miles to get the computer up to speed -- my 350Z knocked with 92oc when pushing it on the back back roads.

Some people where having problem with higher mixes then 93.? when driving around town.
More people where having problem with higher mixes then 94.? when driving around town.
Alot of people where having problem with higher mixes then 95 & up when driving around town.

.

Crash · 02-10-2009, 07:38 PM

My T/A knocked at 5500 RPM with 91 or less. I can't imagine that you'd have problems running at low speeds on higher octane levels. Very strange to me.

2011 Nismo#91 · 04-03-2012, 08:45 AM

Just a note for the people using E10 gas and don't drive their car often you lose about 2-3 octane rating if you let it sit in your tank for a few weeks especially when its humid.

gofaster87 · 04-03-2012, 09:45 AM

If you want to save on fuel costs have several maps available. I have a friend that tuned his car(he is a genius at tuning) for different octanes including 87. He uses the 87 map for driving back and forth to work and running errands. He switches to the other maps depending on what kind of racing he is doing on a particular day and what octane he has available from the track. So his range is from a few hundred whp to over 500 whp.

TerribleONE · 04-03-2012, 10:22 AM

Dead thread batman!!!!

02-07-2009, 07:25 AM	#3 (permalink)
Crash A True Z Fanatic Join Date: Dec 2008 Location: Los Angeles Posts: 1,853 Drives: 02 Corvette Z06 Rep Power: 590	He can show up in a bubble and would be welcomed with the following conditions: He MUST fix the crap he broke He MUST be wearing clothes when he shows up! LOL __________________ 2002 Corvette Z06 - Totaled 2003 Corvette Z06 50th Anniversary

02-08-2009, 09:41 AM	#4 (permalink)
3SeventyZ Track Member Join Date: Dec 2008 Location: MD/DE Posts: 626 Drives: 350Z, 370Z, SRT8 Rep Power: 476	I use nothing but premium fuel here. __________________ 2009 Magnetic Black 370Z Sport 6MT

02-08-2009, 03:58 PM	#5 (permalink)
Crash A True Z Fanatic Join Date: Dec 2008 Location: Los Angeles Posts: 1,853 Drives: 02 Corvette Z06 Rep Power: 590	That's a good question. I don't know about that. You're right that there'd be dilution, and there would be a problem when it came time to run the car and your motor gets a gulp of water instead of fuel. But you also have to have special fuel lines for E85, but I'm wondering if they're stainless steel or if they can rust. __________________ 2002 Corvette Z06 - Totaled 2003 Corvette Z06 50th Anniversary

02-09-2009, 03:56 AM	#7 (permalink)
Crash A True Z Fanatic Join Date: Dec 2008 Location: Los Angeles Posts: 1,853 Drives: 02 Corvette Z06 Rep Power: 590	If you tune for both, you should be able to run both without a problem. The only physical changes you need to make are the fuel lines... They need to be stainless. Aside from that and tuning, there's not much more to converting to E85. I will DEFINITELY be using it when I go forced induction. I'll already be voiding my warranty, and 105 Octane is nice when you're only paying 2.40/gal! __________________ 2002 Corvette Z06 - Totaled 2003 Corvette Z06 50th Anniversary

02-10-2009, 06:17 AM	#9 (permalink)
Crash A True Z Fanatic Join Date: Dec 2008 Location: Los Angeles Posts: 1,853 Drives: 02 Corvette Z06 Rep Power: 590	Yeah. Need to buy the car first! LOL __________________ 2002 Corvette Z06 - Totaled 2003 Corvette Z06 50th Anniversary

02-06-2009, 09:24 AM	#2 (permalink)
nogoodname Lifetime Premium Join Date: Nov 2008 Location: Montreal Posts: 22,357 Drives: E46 M3 Rep Power: 1765	on the G's....premium fuel is recommended I've heard really bad stories of ppl putting in regular fuel...car was all jerky and smelly.....idle super rough....bad times

02-10-2009, 03:24 PM	#10 (permalink)
4MYZ370 Base Member Join Date: Dec 2008 Location: San Ramon, Ca. Posts: 68 Drives: nissan Rep Power: 17	octain adding . In cal we can only get 92 octane(oc) To get to 93oc we need to add 100oc unleaded - i,m a little off maybe with mix - but this is close 14 gals 92oc mix 2.5gals. 100oc and then drive 300miles to get the computer up to speed -- my 350Z knocked with 92oc when pushing it on the back back roads. Some people where having problem with higher mixes then 93.? when driving around town. More people where having problem with higher mixes then 94.? when driving around town. Alot of people where having problem with higher mixes then 95 & up when driving around town. . Last edited by 4MYZ370; 02-10-2009 at 03:29 PM.

02-10-2009, 07:38 PM	#11 (permalink)
Crash A True Z Fanatic Join Date: Dec 2008 Location: Los Angeles Posts: 1,853 Drives: 02 Corvette Z06 Rep Power: 590	My T/A knocked at 5500 RPM with 91 or less. I can't imagine that you'd have problems running at low speeds on higher octane levels. Very strange to me. __________________ 2002 Corvette Z06 - Totaled 2003 Corvette Z06 50th Anniversary

04-03-2012, 08:45 AM	#12 (permalink)
2011 Nismo#91 A True Z Fanatic Join Date: Mar 2011 Location: NJ Posts: 2,408 Drives: slowly Rep Power: 40570	Just a note for the people using E10 gas and don't drive their car often you lose about 2-3 octane rating if you let it sit in your tank for a few weeks especially when its humid.

04-03-2012, 09:45 AM	#13 (permalink)
gofaster87 Base Member Join Date: Mar 2012 Location: Las Vegas Posts: 57 Drives: 2011 Nismo 370Z Rep Power: 14	If you want to save on fuel costs have several maps available. I have a friend that tuned his car(he is a genius at tuning) for different octanes including 87. He uses the 87 map for driving back and forth to work and running errands. He switches to the other maps depending on what kind of racing he is doing on a particular day and what octane he has available from the track. So his range is from a few hundred whp to over 500 whp.

04-03-2012, 10:22 AM	#14 (permalink)
TerribleONE A True Z Fanatic Join Date: Jan 2009 Location: Socal Posts: 10,203 Drives: WOT Rep Power: 5851	Dead thread batman!!!! __________________ 638WHP 541WTQ @ 13.5PSI Build thread

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