Jump to content
SAU Community

Avgas

Jetdat

By Jetdat,
in Victoria

 Share

Recommended Posts

Jetdat Veteran

Jetdat

Posted
Posted

my car is tuned for 100 octane but i want to run something with higher octane this saturday at the drag meet for extra protection.

i rang martini fuels in rowville and got quoted $145 plus GST for 20 litres of 110 octane fuel. this is rather expensive so i called moorabbin airport to see if they still sell to public like they used to back in the 90s when i was a regular buyer... the avgas is currently $2.35 per litre and with 106 octane seems much more economical.

they still do sell to public only if a cams passbook ( as he put it ) can be shown at the time of purchase... i assume this is what the track guys with cams licenses have???

just wondering if anyone is also interested in runing avgas and or can help me purchase some with the help of their cams passbook please...

i can take care of all the logistics if needed..

cheers

Link to comment
https://www.sau.com.au/forums/topic/173443-avgas/
Share on other sites
R31Nismoid Grand Master

R31Nismoid

Posted
Posted

I wouldnt be using avcat/avgas.

Your better off using a correctly designed fuel if you want any piece of mind.

You'd only need to mix 10 litres of martini/sunoco to a 3/4 full tank if all you want is protection.

You could then save the stuff for another time @ Calder or whatever.

Or alternatively if you wanted more use out of the fuel and have a PowerFC, that can be easily sorted via some quick injector/ignition settings

I think the Sunoco was $120 for 20 litres, and is 104, unless prices have changes (VPW)

Link to comment
https://www.sau.com.au/forums/topic/173443-avgas/#findComment-3188238
Share on other sites
Jetdat Veteran

Jetdat

Posted
  • Author
Posted

any reason why avgas no good??

i do have PFC but too much of a noob with it to play around with Benno's settings..

if you are confident and know what you are doing and wouldnt mind, it be great if you could fatten the curve with 110 octane mix 50/50 or like you said add to 3/4 of v-racing... if the gain is considerable i dont mind paying 145 for 20 litres, as long as you can put the settings back to what they were...

Link to comment
https://www.sau.com.au/forums/topic/173443-avgas/#findComment-3188287
Share on other sites
Omurru Veteran

Omurru

Posted
Posted
from just one tankful?

I thought a tankful here and there didn't really effect anything??? Thought about/tried using a toluene mix? Also food for thought the military spec avgas, I can't remember it's name of the top of my head but it's 140octane, they use it in some of the warbirds and the caribu's etc. where to get it though I dunno.....

Link to comment
https://www.sau.com.au/forums/topic/173443-avgas/#findComment-3188326
Share on other sites
Jetdat Veteran

Jetdat

Posted
  • Author
Posted
I thought a tankful here and there didn't really effect anything??? Thought about/tried using a toluene mix? Also food for thought the military spec avgas, I can't remember it's name of the top of my head but it's 140octane, they use it in some of the warbirds and the caribu's etc. where to get it though I dunno.....

thats what i thought too that one tankful wouldnt hurt..

anymore info on toulene mix.. where to buy, how much to mix, how much cost and how much does it boost the octane??

might do some search on toulene..

Link to comment
https://www.sau.com.au/forums/topic/173443-avgas/#findComment-3188336
Share on other sites
Beer Baron Grand Master

Beer Baron

Posted
Posted

a couple of points. avgas is no longer 106. more like 102 or 103. also, a cams passbook is a special fuel permission book, not a cams licence. to get one you need (from the top of my head) a PC or NC licence, and a cams log booked car (to use the fuel in). the write in the book how much you buy etc to prevent abuse of the system.

edit: as ronin suggested elf LMS is a better option, and is unleaded, and does not require a licence and passbook to buy it.

Link to comment
https://www.sau.com.au/forums/topic/173443-avgas/#findComment-3188857
Share on other sites
2rismo Grand Master

2rismo

Posted
Posted

Octane isn't the only measure of a fuel when you're after some protection for a track day. Some of the very high octane unleaded fuels will burn very rapidly compared to pump fuel and could result in a lean AFR. Motec's website has some very interesting fuel test data comparing avgas and v-power racing from shell.

Link to comment
https://www.sau.com.au/forums/topic/173443-avgas/#findComment-3188944
Share on other sites
archie01 Community Regular

archie01

Posted
Posted

Jetdat

If benno has set your tune with V power racing then don't touch it and race it with that fuel in the tank.

It will be fine.

I ran my car around sandown with his tune on vpower racing and the knock levels were fine all day.

Your engine has been tuned with the fuel characteristics of v power racing, don't go putting a higher octane rating fuel (even if it is unleaded) as this fuel will exhibit different burn characteristics etc

Link to comment
https://www.sau.com.au/forums/topic/173443-avgas/#findComment-3188994
Share on other sites
Rowdyr32 Mentor

Rowdyr32

Posted
Posted

I agree with Beer Baron. I work at Moorabin Airport and can get some for you but you may aswell just run V racing at 100 octane because thats all avgas is. If you want to go faster you'd be better off just pullling the rear seats out and not worrying about the avgas. That about all you'll notice. Nothing. There used to be a few different types of avgas but 100 is all you can get these days easily/common.

Avgas is just wank that people think it gives them heaps more power but its just in their mind compared to 98 octane or v racing.

Link to comment
https://www.sau.com.au/forums/topic/173443-avgas/#findComment-3189003
Share on other sites
Rowdyr32 Mentor

Rowdyr32

Posted
Posted
Avgas is not Shell V Power Racing. They are completely separate animals. If your car is tuned properly, don't worry about it.

Obviously their not the same but are the same octane rating. He doesn't run avgas in it at the moment so there is no need to run it and their not really completely separate animals.

Link to comment
https://www.sau.com.au/forums/topic/173443-avgas/#findComment-3189459
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Latest Posts

    • GTSBoy
      $5 Clock upgrade for R32 GTR

      By GTSBoy · Posted

      The attached document is fine. I just downloaded & opened it.
    • ToothDR32
      $5 Clock upgrade for R32 GTR

      By ToothDR32 · Posted

      Hello, sorry for being late to join the discussion, but my clock just died on me.   Ive tried to look at Michaels digital clock repair.docx and it doesnt work maybe the file has expired.   Please let me know if you can re upload it or take some youtube videos to show us how to get the clock installed? thanks
    • MissMintyR33
      R33 persistent issues. P/steering and lag/misfire

      By MissMintyR33 · Posted

      I thought that might be the case, thats what I'll start saving for. Thanks for the info 
    • jtha7
      Strange issue RB25DET wont start

      By jtha7 · Posted

      Ps i found the below forum and it seems to be the same scenario Im dealing with. Going to check my ECU coolant temp wire tomorrow    From NICOclub forum: s1 RB25det flooding at start up Thu Apr 11, 2013 7:23 am I am completely lost on this. Car ran perfectly fine when I parked it at the end of the year. I took the engine out and painted the engine bay, and put a fuel cell with an inline walbro 255 instead of the in tank unit I had last year. After reinstalling everything, the engine floods when the fuel pump primes. if i pull the fuel pump fuse it'll start, and as soon as I put the fuse back in it starts running ridiculously rich. I checked the tps voltage, and its fine. Cleaned the maf as it had some dust from sitting on a shelf all winter, fuel pressure is correct while running, but wont fire until there is less than 5psi in the lines. The fuel lines are run correctly. I have found a few threads with the same problem but no actual explanation of what fixed it, the threads just ended. Any help would be appreciated. Rb25det s1 walbro255 fuel pump nismo fpr holset hx35 turbo fmic 3" exhaust freddy intake manifold q45tb q45 maf   Re: s1 RB25det flooding at start up Fri Apr 12, 2013 5:07 am No, I didn't. I found the problem though. There was a break in one of the ecu coolant temp sensor wires. Once it was repaired it fired right up with no problems. I would have never thought a non working coolant temp sensor would have caused such an issue.
    • jtha7
      Strange issue RB25DET wont start

      By jtha7 · Posted

      Hi sorry late reply I didnt get a chance to take any pics (my mechanics on the other side of the city) but the plugs were fouled from being too rich. I noticed the MAF wasn't genuine, so I replaced it with a genuine green label unit. I also swapped in a different ignitor, but the issue remains. I've narrowed it down a bit now: - If I unplug and reconnect the fuel lines and install fresh spark plugs, the car starts right up and runs perfectly. Took it around the block with no issues - As soon as I shut it off and try to restart, it won't start again - Fuel pressure while cranking is steady around 40 psi, injectors have good spray, return line is clear, and the FPR vacuum is working. It just seems like it's getting flooded after the first start I unplugged coolant sensors to see if its related to ECU flooding but that didnt make a difference. Im thinking its related to this because this issue only started happening after fixing coolant leaks and replacing the bottom part of the stock manifolds coolant pipe. My mechanic took off the inlet to get to get to do these repairs. My mechanics actually just an old mate who's retired now so ill be taking it to a different mechanic who i know has exp with RBs to see if they find anything. If you have any ideas please send em lll give it a try. Ive tried other things like swapping the injectors, fuel rail, different fuel pressure regs, different ignitor, spark plugs, comp test and MAF but the same issue persists.
×
×
  • Create New...