Discovery II Talk about the Land Rover Discovery II within.
Sponsored by:
Sponsored by:

100 proof gasoline

Thread Tools
 
Search this Thread
 
  #1  
Old 04-07-2013 | 02:21 PM
FlyingZebra34's Avatar
Thread Starter
|
Recovery Vehicle
Joined: Feb 2012
Posts: 1,039
Likes: 43
From: Aberdeen, Washington
Default 100 proof gasoline

Anyone use it in there Rover? I might have access to it and wondered if it was worth the extra 20 cents a gallon vs premium(91).
 
  #2  
Old 04-07-2013 | 02:42 PM
Disco Mike's Avatar
Administrator
Joined: Apr 2006
Posts: 25,707
Likes: 106
From: Denver, Colorado
Default

Is it leaded or unleaded?
Chances are, although you will get a lot more power, you will fry your valves and seals, kind of like run avaition fuel, fun but costly.
 
  #3  
Old 04-07-2013 | 02:57 PM
jafir's Avatar
Super Moderator
Joined: Nov 2009
Posts: 5,847
Likes: 99
From: Arkansas
Default

Higher octane gas burns slower. If your engine cannot increase the effective compression ratio (like with a turbo) or if it cannot significantly advance the timing, you'll likely notice LESS performance not more.
 
  #4  
Old 04-07-2013 | 05:58 PM
Racer X's Avatar
Recovery Vehicle
Joined: Jun 2012
Posts: 1,079
Likes: 57
From: Queens, NYC
Default

Originally Posted by Disco Mike
Chances are, although you will get a lot more power, you will fry your valves and seals, kind of like run avaition fuel, fun but costly.
What? No... just no.

Leaded high octane (also known as AVGAS, or Aviation Gasoline) will ruin your catalytic converters in short order, and might (but likely won't) cause injector problems.

Unleaded high octane will combust slower, resulting in slightly higher HC's in the exhaust stream, and if the stock tuned ECU tries to compensate you may end up with a power reduction. The only exception to this is if your ECU is specifically tuned to use a high octane fuel, then yes, you can expect an increase in power over a standard octane.

What won't happen, however, is:
- Frying of the valves and seals. They'll be just fine.
- Powahhh! There will be no increase (unless tuned for high octane).
 
  #5  
Old 04-07-2013 | 06:16 PM
FlyingZebra34's Avatar
Thread Starter
|
Recovery Vehicle
Joined: Feb 2012
Posts: 1,039
Likes: 43
From: Aberdeen, Washington
Default

So where do all these rumors of increased performance and mpg's without the ethanol and other additives come from?
 
  #6  
Old 04-07-2013 | 06:19 PM
ZGPhoto's Avatar
Camel Trophy
Joined: Apr 2012
Posts: 4,533
Likes: 102
From: Burlington, VT
Default

Vehicles that can advance timing benefit exponentially from higher octane gas. I do not think the Rover V8 can do that.
 
  #7  
Old 04-07-2013 | 06:50 PM
Spike555's Avatar
Team Owner
Joined: Jun 2007
Posts: 26,212
Likes: 95
From: Grand Rapids MI
Default

Originally Posted by FlyingZebra34
So where do all these rumors of increased performance and mpg's without the ethanol and other additives come from?
Those are not rumors, those are facts.
Ethanol has less power per gallon than gasoline BUT it produces little to no emissions, so mixing it with gasoline reduces the pollutants from burning gasoline.
Take out the ethanol and you will increase MPG and power, you will not notice a power increase but if you were to do a dyno run, it would show on the computer.
These trucks are tuned to run 91 octane or higher, if you can get 89 non-ethanol you will be better off running that vs a 93 octane E-10 (10% ethanol)mix.
E-85 (85% ethanol)is 105 octane.
You can run 110 octane in a normal engine with no problems, will NOT hurt the engine in any way shape or form.
Anything over 110 octane will melt your pistons and valves, wont happen over night, but it will happen.
 
  #8  
Old 04-07-2013 | 06:52 PM
Spike555's Avatar
Team Owner
Joined: Jun 2007
Posts: 26,212
Likes: 95
From: Grand Rapids MI
Default

Originally Posted by Racer X
What? No... just no.

Leaded high octane (also known as AVGAS, or Aviation Gasoline) will ruin your catalytic converters in short order, and might (but likely won't) cause injector problems.

Unleaded high octane will combust slower, resulting in slightly higher HC's in the exhaust stream, and if the stock tuned ECU tries to compensate you may end up with a power reduction. The only exception to this is if your ECU is specifically tuned to use a high octane fuel, then yes, you can expect an increase in power over a standard octane.

What won't happen, however, is:
- Frying of the valves and seals. They'll be just fine.
- Powahhh! There will be no increase (unless tuned for high octane).
When I raced we ran 110 octane leaded gas, that was with carbs and dizzy's so we just advanced the timing and ran her in the "sweet" spot.
 
  #9  
Old 04-07-2013 | 06:57 PM
coors's Avatar
Pro Wrench
Joined: Jan 2011
Posts: 1,869
Likes: 44
From: Philly
Default

Originally Posted by Spike555
When I raced we ran 110 octane leaded gas, that was with carbs and dizzy's so we just advanced the timing and ran her in the "sweet" spot.
I'm sure the exhaust from that bad boy brought a tear to your eye
 
  #10  
Old 04-07-2013 | 07:12 PM
Spike555's Avatar
Team Owner
Joined: Jun 2007
Posts: 26,212
Likes: 95
From: Grand Rapids MI
Default

Originally Posted by coors
I'm sure the exhaust from that bad boy brought a tear to your eye
There is no smell sweeter than that of pure raw untreated 110 octane exhaust.
 


Quick Reply: 100 proof gasoline



All times are GMT -5. The time now is 05:06 PM.