The Subaru SVX World Network   SVX Network Forums
Live Chat!
SVX or Subaru Links
Old Lockers
Photo Post
How-To Documents
Message Archive
SVX Shop Search
IRC users:

Go Back   The Subaru SVX World Network > SVX Main Forums > General SVX Babble

Reply
 
Thread Tools Display Modes
  #1  
Old 03-02-2004, 01:03 PM
HighwayUFO's Avatar
HighwayUFO HighwayUFO is offline
After 200, it's all the same.
 
Join Date: Jan 2004
Location: Caldwell, Idaho
Posts: 1,009
110 leaded

just a little Q. In idaho you can get 110 octane trick racing fuel from the pumps. I read that the minimum an SVX should use in 91 octane. Is it kosher to run one gallon of trick in a full tank of 91 or 93 octane?
I did just a squirt some time ago, not more than .082 of a gallon. and it didn't seem to hurt the car. There wasn't that much race fuel in the tank but it seemed like it actually did help somewhat.
let me know if it is cool to mix 91 and trick race gas.
Reply With Quote
  #2  
Old 03-02-2004, 02:04 PM
dcarrb dcarrb is offline
Registered User
 
Join Date: Nov 2003
Location: none
Posts: 3,430
Re: 110 leaded

Quote:
Originally posted by civic_slayer
just a little Q. In idaho you can get 110 octane trick racing fuel from the pumps. I read that the minimum an SVX should use in 91 octane. Is it kosher to run one gallon of trick in a full tank of 91 or 93 octane?
I did just a squirt some time ago, not more than .082 of a gallon. and it didn't seem to hurt the car. There wasn't that much race fuel in the tank but it seemed like it actually did help somewhat.
let me know if it is cool to mix 91 and trick race gas.

My understanding is, it's not cool to run any leaded fuel if you have working catalytic converters in place and want to keep them that way.


dcb
Reply With Quote
  #3  
Old 03-02-2004, 03:05 PM
Mr. Pockets's Avatar
Mr. Pockets Mr. Pockets is offline
Moderator
 
Join Date: Apr 2001
Location: Champaign, IL
Posts: 6,916
Send a message via ICQ to Mr. Pockets
Registered SVX
Re: Re: 110 leaded

Quote:
Originally posted by dcarrb



My understanding is, it's not cool to run any leaded fuel if you have working catalytic converters in place and want to keep them that way.


dcb
Right, and I also don't know why you'd put 110 octane fuel in your car if it wasn't tuned to run it. Can the EG33 adapt to it? I don't know.
__________________


2005 RX-8 Grand Touring
2005 Outback
2002 Mercedes-Benz E320 wagon

END OF LINE
Reply With Quote
  #4  
Old 03-02-2004, 03:31 PM
Sonar's Avatar
Sonar Sonar is offline
Registered User
 
Join Date: Aug 2003
Location: Sweden
Posts: 634
You ruin your CAT if you run on leaded fuel !!



/Sonny
__________________
Internal name: "SuperSonic"

-92 ebony black with 170k KM

*** -Stress is when you wake up screaming & you realize you haven't fallen asleep yet. ***
Reply With Quote
  #5  
Old 03-02-2004, 04:29 PM
lee lee is offline
Registered User
 
Join Date: Mar 2002
Location: Indialantic, Florida
Posts: 2,940
Re: 110 leaded

Quote:
Originally posted by civic_slayer
just a little Q. In idaho you can get 110 octane trick racing fuel from the pumps. I read that the minimum an SVX should use in 91 octane. Is it kosher to run one gallon of trick in a full tank of 91 or 93 octane?
I did just a squirt some time ago, not more than .082 of a gallon. and it didn't seem to hurt the car. There wasn't that much race fuel in the tank but it seemed like it actually did help somewhat.
let me know if it is cool to mix 91 and trick race gas.
If your SVX is knock limited for some reason, i.e., the ECU is retarding timing due to the knock sensors, then upgrading octane number "might" help and the ecu "might" respond. I say "might" because I'm sure there's some electronic limit to the amount of advance it will produce.

if you are not experiencing knocking, then increasing the octane number is a waste (of money if nothing else). Remember, the only major difference between lower and higher octane fuel has to do with how fast the fuel ignites when compressed. Higher octane is more resistant to spontaneous ignition, i.e., harder to start the fire - somehow seems backward from what you'd think but it's true. BTW, originally higher octane fuel meant there was actually more Octane (8 carbon atom) in the fuel when compared to the amount of Heptane (7 carbon atom - usually given an "octane" rating of zero if I remember correctly).

see comment on leaded fuel above, it WILL ruin the cats.
Reply With Quote
  #6  
Old 03-02-2004, 09:57 PM
mikecg's Avatar
mikecg mikecg is offline
Registered User
 
Join Date: Jul 2003
Location: Esconidido, CA
Posts: 2,422
Send a message via AIM to mikecg Send a message via Yahoo to mikecg
I've used octane booster. It supposedly increased to 102 Oct. The car seemed to excellerat a little better, but not that much. It wasnt really worth the trouble. It didnt cause any problems, but if I were you I'd just save the money up for some machanical upgrades. A K&N air filter gives you nearly the same results.
Reply With Quote
  #7  
Old 03-02-2004, 10:37 PM
NomadTW's Avatar
NomadTW NomadTW is offline
abrasive personality
 
Join Date: Apr 2002
Location: Mars, PA
Posts: 1,199
Send a message via AIM to NomadTW
will it make the cats fall apart or just clog?

what if the car does not have functioning cats (my obs)

if it will make them fall apart and blow out the back i might need to put some lead additive in my obs to get the chunks that are rattling around in there out it makes such an annoying racket
__________________
SV What?
Reply With Quote
  #8  
Old 03-02-2004, 11:41 PM
svxsubaru1's Avatar
svxsubaru1 svxsubaru1 is offline
Registered User
 
Join Date: Jun 2003
Location: seattle
Posts: 1,020
I aggre Le but would like to add putting in high octane in a car that cant adapt to use it will lose horse power becasue of how much slower the fuel burns. Motor trend did a dyno test on cars that were spose to run regular and were were given premiun 93 octane i think the average loss in horse power at the wheels was around 10HP!!!

Last edited by svxsubaru1; 03-02-2004 at 11:44 PM.
Reply With Quote
  #9  
Old 03-03-2004, 10:00 AM
svx1999 svx1999 is offline
Registered User
 
Join Date: Apr 2001
Location: NC
Posts: 220
110

shoot I forgot the name of the person who posted this question.
Most of the 110 I've seen is Low lead. Av-gas is also low lead.

Everyone is correct it will Clog the Cats up.. So you really don't wanna use it. Plus it would be a good idea to Reset the ECU so that adjust to your new mix. Sounds crazy but I've done this myself.

I think I put a little more then 1 gallon.. I made sure it was mixed. as you can melt pistons or so I've heard.

I think the SVX's Ecu would adjust but there has to be a limit as to how far..

I only did it once as I didn't want to clog up the cats. as for any difference. it ran a little a bit better.. Nothing that I can really prove. just what I noticed.

There is more energy in lower octane, then higher or so a Very smart engineer once explained to me how all this is worked out.
In short if the engine is NOT tuned for it, it's a waste of money and that even goes for regular cars burning 93...
If the car was designed to use 87, cahnces are it will run better or just as well on 87 Vs 93... unless it's knocking..

DON't burn your cats out.. WIth all the NEW emission standards that are coming out now.. you'll need those cats, some time..

SVX1999
Reply With Quote
  #10  
Old 03-03-2004, 11:07 AM
Uncamitzi's Avatar
Uncamitzi Uncamitzi is offline
Member #447
 
Join Date: Dec 2001
Location: Salt Lake City, Utah
Posts: 1,902
Send a message via MSN to Uncamitzi Send a message via Yahoo to Uncamitzi Send a message via Skype™ to Uncamitzi
Registered SVX
Re: 110

Quote:
Originally posted by svx1999
shoot I forgot the name of the person who posted this question.
Most of the 110 I've seen is Low lead. Av-gas is also low lead.

Everyone is correct it will Clog the Cats up.. So you really don't wanna use it. Plus it would be a good idea to Reset the ECU so that adjust to your new mix. Sounds crazy but I've done this myself.

I think I put a little more then 1 gallon.. I made sure it was mixed. as you can melt pistons or so I've heard.

I think the SVX's Ecu would adjust but there has to be a limit as to how far..

I only did it once as I didn't want to clog up the cats. as for any difference. it ran a little a bit better.. Nothing that I can really prove. just what I noticed.

There is more energy in lower octane, then higher or so a Very smart engineer once explained to me how all this is worked out.
In short if the engine is NOT tuned for it, it's a waste of money and that even goes for regular cars burning 93...
If the car was designed to use 87, cahnces are it will run better or just as well on 87 Vs 93... unless it's knocking..

DON't burn your cats out.. WIth all the NEW emission standards that are coming out now.. you'll need those cats, some time..

SVX1999
Someone with more knowledge than me You mean everyone...Mitch?

I thought that the higher the octane the cooler the burn? Yes or no?

Clog is a good term on the Cats. Lead and the ceramic in the cats don't get along.
__________________
Mitch Hansen
"uncamitzi"
This is a Dark Ride
92 Teal SVX LS-L 128K tranny swap with 4.11's
Well.. my days of not taking you seriously have certainly come to a middle .
Reply With Quote
  #11  
Old 03-03-2004, 11:26 AM
Phast SVX's Avatar
Phast SVX Phast SVX is offline
BOOOOOOOOOOOOOOOOOST
 
Join Date: Feb 2001
Location: Madison, WI
Posts: 2,800
Send a message via AIM to Phast SVX
Ya but it smells oh so good!!!
phil
__________________
~Phil
Teal 1992 Subaru SVX Turbo - Sold in May 2011 to peace-frog.
Reply With Quote
  #12  
Old 03-03-2004, 03:18 PM
drivemusicnow's Avatar
drivemusicnow drivemusicnow is offline
Poor College Racer
 
Join Date: Sep 2002
Location: IL/MI
Posts: 1,522
Send a message via AIM to drivemusicnow
the higher the octane rating, the harder it is to ignite, so you usually step you spark plugs up one or two "temperature" ratings... the reason you'd upgrade is so that the gas ignites all at once, and doesn't detonate early. you only need that on high compressions, or turbo'd vehicles from what i understand (thats why our cars need 93... i think)
__________________
Greg

97 Red SVX LSi clean
96 Black SVX LSi beater
90 Red Eclipse GSX track ho
99 Ford F250 work horse
My Locker
Reply With Quote
  #13  
Old 03-03-2004, 03:23 PM
GreenMarine's Avatar
GreenMarine GreenMarine is offline
From POST-***** to LURKER
 
Join Date: Dec 2002
Location: Raleigh, NC
Posts: 5,873
Quote:
Originally posted by Phast SVX
Ya but it smells oh so good!!!
phil
Hmmm , something tells me that that isn't too good for your brain....


<cartman voice>"Sir, step away from the tail pipes......"</cartman voice>
__________________
2020 Subaru Outback Touring - Wife's first Subaru
2005 Volvo V70R - 5-cylinder love! :Heart:

** SOLD **1998 Subaru Legacy 2.5GT Wagon - MOST RELIABLE car I've ever owned
** SOLD **2006Subaru WRXSTi (Former "Boxer4Racing.com / Continential Tire" STi) - Built EJ22t block / EJ207 JDM STi "big port heads" - 9,000rpm MONEY PIT!!!
** SOLD ** 1995 "Tree-Hugger Green" SVX L AWD(5 MT) --- "Gumby" 130K miles #399 in MY95, my original love...
Reply With Quote
  #14  
Old 03-03-2004, 03:23 PM
svxsubaru1's Avatar
svxsubaru1 svxsubaru1 is offline
Registered User
 
Join Date: Jun 2003
Location: seattle
Posts: 1,020
SVXs need or are spose to have 91 octane or higher.
Reply With Quote
  #15  
Old 03-03-2004, 07:05 PM
HighwayUFO's Avatar
HighwayUFO HighwayUFO is offline
After 200, it's all the same.
 
Join Date: Jan 2004
Location: Caldwell, Idaho
Posts: 1,009
thanks for the responses guys. The only reason i asked is that most say that a little, and i mean LITTLE, diesel fuel actually helps clean out the cars innerworkings. May just be a myth. Thanks anyways.
__________________
The member formerly known as Civic_Slayer
1992 "Robins egg blue" SVX Originally Claret 147k- CURRENT

1992 Pearly 187K and climbing (11-91) #964 *retired

1992 Pearl SVX 122500 miles #86 FASTAR THAN THE OLD ONE.*SOLD

Everytime I get into my car, it always reminds me that it has POWER
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 02:09 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
© 2001-2015 SVX World Network
(208)-906-1122