is the 240's ecu meant to run on high octane? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

240Dori · 08-26-2002, 08:53 PM

and if it isnt are there ecu's that are made for running high octane amongst other improvements? i was thinking about getting an ecu....

S14Drifter · 08-26-2002, 10:45 PM

i run my 240 on 94 octane! the highest street gas you can put, from sunoco. it says on the gas lid that 92,93 or higher is good if you want better performance. so you can run your car on high octane pump gas. it will not harm your car.

peter

guidot · 08-26-2002, 11:33 PM

S14's are *required* to use 91 pump octane or higher, but the s13's could run on 87.

tnord · 08-26-2002, 11:43 PM

i just run mid-grade for non-track driving. (90 octane around here)

Frappe · 08-27-2002, 12:45 PM

I run mine 90 octane as well, except when I have to pass emmisions  <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/thumbs-up.gif" border="0" valign="absmiddle" alt=':thumbsup:'>  or, rather, I suppose when I have to try and pass emmisions.

-Frappe
96' S14

the3SecondJerk · 08-27-2002, 03:49 PM

Just remember that higher octane doesn't mean faster....higher octane is harder to ignite. It is used in turbo vehicles because they run at higher temps and the lower octane will ignite prematurely under higher boost, this is called detonation. On a NA vehicle that isn't highly tuned it will provide little performace value.

Alias · 08-28-2002, 09:06 AM

You guys should RTFM!  <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/biggrin.gif" border="0" valign="absmiddle" alt='

'> Mine for my S13 says to use 92octane. SO thats what I use.

the3SecondJerk · 08-28-2002, 11:16 AM

I was just saying any octane above what nissan recommends won't give any real performance gain. Sure it will run cleaner but it won't make your 1/4 mile drop by a half second. That's all.

tnord · 08-28-2002, 11:16 AM

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (sidewayzCA18 @ Aug. 27 2002,4:49)</td></tr><tr><td id="QUOTE">Just remember that higher octane doesn't mean faster....higher octane is harder to ignite. It is used in turbo vehicles because they run at higher temps and the lower octane will ignite prematurely under higher boost, this is called detonation. On a NA vehicle that isn't highly tuned it will provide little performace value.</td></tr></table><span id='postcolor'>
WRONG

if an engine was designed to run on high octane, running high octane in it will produce MORE POWER and will BE FASTER. if you don't believe me, read up on European Car's project M3, or C&D had an article not too long ago about it.

*sykikchimp* · 08-28-2002, 09:46 PM

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (tnord @ Aug. 28 2002,1:16)</td></tr><tr><td id="QUOTE"></span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (sidewayzCA18 @ Aug. 27 2002,4:49)</td></tr><tr><td id="QUOTE">Just remember that higher octane doesn't mean faster....higher octane is harder to ignite. It is used in turbo vehicles because they run at higher temps and the lower octane will ignite prematurely under higher boost, this is called detonation. On a NA vehicle that isn't highly tuned it will provide little performace value.</td></tr></table><span id='postcolor'>
WRONG

if an engine was designed to run on high octane, running high octane in it will produce MORE POWER and will BE FASTER. if you don't believe me, read up on European Car's project M3, or C&D had an article not too long ago about it.</td></tr></table><span id='postcolor'>
even in our cars, The ECU is smart enough to detect when you have shitty gas in the car, and will retard timing to prevent detonation..  This WILL reduce you power.  Run premium, and let the car do what it was designed to do. <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt='

'>

I think 89-90 S13's only req. 87 or 89 up.

180wanab · 08-28-2002, 10:48 PM

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (Frappe @ Aug. 27 2002,1:45)</td></tr><tr><td id="QUOTE">I run mine 90 octane as well, except when I have to pass emmisions <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/thumbs-up.gif" border="0" valign="absmiddle" alt=':thumbsup:'> or, rather, I suppose when I have to try and pass emmisions.

-Frappe
96' S14</td></tr></table><span id='postcolor'>
just a note, the higher the octane is, the higher the emissions will be.

Frappe · 08-29-2002, 07:54 AM

Wanab, that doesn't figure to me. Explain? I've mostly heard that higher octane burns cleaner.

MarketPlayer · 08-29-2002, 01:08 PM

In my 90 fastback...if i run anything higher than 90 octane the engine will have really bad acceloration, and will blow out black smoke.  I have done it three times and the exact same hing happened each time.  I then ran it to emplty and filled up w/ 89 octane, and she purred like a kitten!

08-26-2002, 11:33 PM	#3
guidot Zilvia Junkie Join Date: Feb 2002 Location: Cape Cod, MA Age: 45 Posts: 443 Trader Rating: (0) Feedback Score: 0 reviews	S14's are required to use 91 pump octane or higher, but the s13's could run on 87. __________________ -Jeff T. 96 240SX 240SXONE http://www.240sxone.com

08-27-2002, 12:45 PM	#5
Frappe Zilvia Junkie Join Date: Jul 2002 Location: New York City Posts: 385 Trader Rating: (0) Feedback Score: 0 reviews	I run mine 90 octane as well, except when I have to pass emmisions  <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/thumbs-up.gif" border="0" valign="absmiddle" alt=':thumbsup:'>  or, rather, I suppose when I have to try and pass emmisions. -Frappe 96' S14 __________________ (sold) '96 S14b Zenki4ever

08-27-2002, 03:49 PM	#6
the3SecondJerk Zilvia Junkie Join Date: Jul 2002 Location: Fort Collins, CO Posts: 305 Trader Rating: (3) Feedback Score: 3 reviews	Just remember that higher octane doesn't mean faster....higher octane is harder to ignite. It is used in turbo vehicles because they run at higher temps and the lower octane will ignite prematurely under higher boost, this is called detonation. On a NA vehicle that isn't highly tuned it will provide little performace value. __________________ Drive it like you stole it.

08-28-2002, 09:06 AM	#7
Alias Zilvia Member Join Date: Mar 2002 Location: Piqua,OH Posts: 229 Trader Rating: (0) Feedback Score: 0 reviews	You guys should RTFM!  <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/biggrin.gif" border="0" valign="absmiddle" alt=''> Mine for my S13 says to use 92octane. SO thats what I use.

08-28-2002, 11:16 AM	#8
the3SecondJerk Zilvia Junkie Join Date: Jul 2002 Location: Fort Collins, CO Posts: 305 Trader Rating: (3) Feedback Score: 3 reviews	I was just saying any octane above what nissan recommends won't give any real performance gain. Sure it will run cleaner but it won't make your 1/4 mile drop by a half second. That's all. __________________ Drive it like you stole it.

08-26-2002, 08:53 PM	#1
240Dori Zilvia Member Join Date: Jun 2002 Location: MI Age: 41 Posts: 162 Trader Rating: (0) Feedback Score: 0 reviews	and if it isnt are there ecu's that are made for running high octane amongst other improvements? i was thinking about getting an ecu....

08-26-2002, 10:45 PM	#2
S14Drifter Join Date: Jun 2002 Posts: 7 Trader Rating: (0) Feedback Score: 0 reviews	i run my 240 on 94 octane! the highest street gas you can put, from sunoco. it says on the gas lid that 92,93 or higher is good if you want better performance. so you can run your car on high octane pump gas. it will not harm your car. peter

08-26-2002, 11:43 PM	#4
tnord Nissanaholic! Join Date: Dec 2001 Posts: 1,975 Trader Rating: (0) Feedback Score: 0 reviews	i just run mid-grade for non-track driving. (90 octane around here)

08-28-2002, 09:46 PM	#10
sykikchimp WOW addicted Join Date: Dec 2001 Location: the moon Age: 44 Posts: 6,525 Trader Rating: (0) Feedback Score: 0 reviews	</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (tnord @ Aug. 28 2002,1:16)</td></tr><tr><td id="QUOTE"></span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (sidewayzCA18 @ Aug. 27 2002,4:49)</td></tr><tr><td id="QUOTE">Just remember that higher octane doesn't mean faster....higher octane is harder to ignite. It is used in turbo vehicles because they run at higher temps and the lower octane will ignite prematurely under higher boost, this is called detonation. On a NA vehicle that isn't highly tuned it will provide little performace value.</td></tr></table><span id='postcolor'> WRONG if an engine was designed to run on high octane, running high octane in it will produce MORE POWER and will BE FASTER. if you don't believe me, read up on European Car's project M3, or C&D had an article not too long ago about it.</td></tr></table><span id='postcolor'> even in our cars, The ECU is smart enough to detect when you have shitty gas in the car, and will retard timing to prevent detonation..  This WILL reduce you power.  Run premium, and let the car do what it was designed to do. <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt=''> I think 89-90 S13's only req. 87 or 89 up. __________________

08-28-2002, 10:48 PM	#11
180wanab Join Date: Aug 2002 Posts: 9 Trader Rating: (0) Feedback Score: 0 reviews	</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (Frappe @ Aug. 27 2002,1:45)</td></tr><tr><td id="QUOTE">I run mine 90 octane as well, except when I have to pass emmisions <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/thumbs-up.gif" border="0" valign="absmiddle" alt=':thumbsup:'> or, rather, I suppose when I have to try and pass emmisions. -Frappe 96' S14</td></tr></table><span id='postcolor'> just a note, the higher the octane is, the higher the emissions will be.

08-29-2002, 07:54 AM	#12
Frappe Zilvia Junkie Join Date: Jul 2002 Location: New York City Posts: 385 Trader Rating: (0) Feedback Score: 0 reviews	Wanab, that doesn't figure to me. Explain? I've mostly heard that higher octane burns cleaner. __________________ (sold) '96 S14b Zenki4ever

08-29-2002, 01:08 PM	#13
MarketPlayer Zilvia Member Join Date: Mar 2002 Posts: 251 Trader Rating: (0) Feedback Score: 0 reviews	In my 90 fastback...if i run anything higher than 90 octane the engine will have really bad acceloration, and will blow out black smoke.  I have done it three times and the exact same hing happened each time.  I then ran it to emplty and filled up w/ 89 octane, and she purred like a kitten!