Thanks for that Trev
I am just now using my first tank of optimax... so far i can notice no
difference but that might be due to the awful weather. My webers seem to
cough a bit at low revs in the wetter weather. I will let u know what i
find.
I was not unhappy with the performance on super so it will have to be good
to stay on optimax at 6cents a litre dearer..
cheers
Mick
----- Original Message -----
From: Pooley, Trevor <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, October 25, 2000 10:19 AM
Subject: RE: Optimax eating rubber fuel lines
> Mick,
>
> Seams everyone has beaten me to it.
>
> > Whats this about Optimax eating rubber parts?
> > Is there fact in this?
> I am running a new 3/8 fuel line from the tank to the carbs at the moment
> and have had no problems here. I have noticed the o rings on top of the
pump
> jets seamed a little swollen up at winton and the caps needed tightening a
> bit (webers). I had a old stuffed bit of hose that goes from the fuel tank
> to the filler cap (5/8 diameter). I replaced this with some heater hose
for
> the short term and the fuel in the hose caused it to leak a sticky foul
> smelling goo for a while. It then became hard and brittle. It has been
> replaced with something from enzed.
>
> > Did u get any better performance or efficiency with it? As Terry said 98
> octane. No better efficency as I have twin 45's jetted for racing and use
> about half a litre a minute to my calcs.
>
> > have u had any problems with it? Funny enough no problems except with a
L
> series turbo setup I ran earlier in the year. We were running Leaded and
ran
> the fuel tank right down. When we filled up with optimax and started it
up.
> We let it idle until the optimax came though which caused it cut out. From
> then on we then had starting problems with optimax in the tank. Never got
> around to working out why as I was sick of fixing blown head gaskets. I
> needed reliability so changed to a two litre engine and webers. No
problems
> since then.
>
> Regards
> Trev
>
>
> -----Original Message-----
> From: Brad HALLETT [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, 25 October 2000 2:58
> To: [EMAIL PROTECTED]
> Subject: RE: Optimax eating rubber fuel lines
>
>
> Mick
> I am up late because I am an insomniac, comes from many years of shift
work.
>
> The rubber in your hoses should be synthetic, I cannot however vouch for
the
> rubber in your carbs. The way I found out was from talking to a bloke
from
> Shell who told me they had trouble in Perth when it was released. It was
> chewing away at some hoses and causing fires. I would suggest that you
soak
> some 'sacrificial' gaskets and hoses to check before you use it, just in
> case.
>
> I can personally vouch for Optimax's gains as I have run it in my missus'
> new Barina, and turned it into a rocket. This of course helped economy
due
> to less throttle.
>
> Regards
> Brad HALLETT
> http://www.powerup.com.au/~bhallett
>
> Proudly Endorsing:
> ...DATRATS...
> http://203.33.35.34
> Datsun Dedicated
> For Nissan Motorsport Components
> Professional Budget Priced competition equipment
> Contact Errol SMITH
> email: [EMAIL PROTECTED]
>
>
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Mick Ralph
> Sent: Friday, November 25, 1994 12:10 AM
> To: [EMAIL PROTECTED]
> Subject: Re: Optimax eating rubber fuel lines
>
>
> Brad
> Is the "rubber" they make fuel lines out of a synthetic?
> I have "rubber" lines going from the fuel tank to the fuel pumps (in the
> boot) and to connect the webers and I'm not sure about whats inside my
fuel
> pumps but i guess they have some sort of rubber diaphrams. I bought it as
> 'Fuel Hose' and it looks like black rubber to me.
> How does optimax compare to the leaded petrol I am currently using?
> what do u reckon? And why are u up so late??
> cheers
> Mick
> ----- Original Message -----
> From: Brad HALLETT <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Tuesday, October 24, 2000 11:43 PM
> Subject: RE: Optimax eating rubber fuel lines
>
>
> > Mick
> > Optimax gives great gains in performance and economy over regular
> unleaded,
> > but will eat natural rubber. Synthetic rubber hoses and gaskets will
> > survive. Still not as good as Avgas but comes close and much cheaper
> >
> > Regards
> > Brad HALLETT
> > http://www.powerup.com.au/~bhallett
> >
> > Proudly Endorsing:
> > ...DATRATS...
> > http://203.33.35.34
> > Datsun Dedicated
> > For Nissan Motorsport Components
> > Professional Budget Priced competition equipment
> > Contact Errol SMITH
> > email: [EMAIL PROTECTED]
> >
> >
> >
> > -----Original Message-----
> > From: [EMAIL PROTECTED]
> > [mailto:[EMAIL PROTECTED]]On Behalf Of Mick Ralph
> > Sent: Thursday, November 24, 1994 11:14 PM
> > To: [EMAIL PROTECTED]
> > Subject: Re: Optimax eating rubber fuel lines
> >
> >
> > Hi trev
> > Good to hear you are going so well on the track lately.. Makes all the
> hard
> > work and $$$ seem worthwhile huh?
> > Whats this about Optimax eating rubber parts?
> > Is there fact in this?
> > I was contemplating using it myself but...
> > Did u get any better performance or efficiency with it?
> > have u had any problems with it?
> > cheers
> > Mick
> >
> >
> >
> > riginal Message -----
> > From: Pooley, Trevor <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Tuesday, October 10, 2000 2:12 PM
> > Subject: RE: Optimax eating rubber fuel lines
> >
> >
> > > Brad,
> > >
> > > What the hell have you been doing with Optimax and ribbed condoms. On
> > second
> > > thoughts don't tell me.
> > >
> > > Fuel useage in my race car is half a litre a minute at the moment so
Elf
> > > Racing fuel at $5 a litre would make for expensive racing. I'll stick
> with
> > > optimax.
> > >
> > > Trev
> > >
> > > -----Original Message-----
> > > From: Brad HALLETT [mailto:[EMAIL PROTECTED]]
> > > Sent: Tuesday, 10 October 2000 1:35
> > > To: [EMAIL PROTECTED]
> > > Subject: RE: Optimax eating rubber fuel lines
> > >
> > >
> > > I haven't got access to my old lab equipment, and my current employer
> > won't
> > > let me use the Scientific section for petrochemical research, however
I
> > have
> > > found three things:
> > >
> > > 1)Optimax is bloody good cleaning solvent
> > > 2)Optimax will destroy rubber seals, hoses and ribbed condoms
> > > 3)Elf Racing fuel is about $5 a litre
> > >
> > > Regards
> > > Brad HALLETT
> > > http://www.powerup.com.au/~bhallett
> > >
> > > Proudly Endorsing:
> > > ...DATRATS...
> > > http://203.33.35.34
> > > Datsun Dedicated
> > > For Nissan Motorsport Components
> > > Professional Budget Priced competition equipment
> > > Contact Errol SMITH
> > > email: [EMAIL PROTECTED]
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: [EMAIL PROTECTED]
> > > [mailto:[EMAIL PROTECTED]]On Behalf Of Craig
Overend
> > > Sent: Tuesday, October 10, 2000 12:49 AM
> > > To: [EMAIL PROTECTED]
> > > Subject: Optimax eating rubber fuel lines
> > >
> > >
> > > Because of the elimination of lead from fuels, the oil companys have
to
> > > use a substitute. Aromatics such as benzol, toluene, xylene are used
as
> > > a replacement. Aromatic fuel blends act as a solvent with rubber parts
> > > and require the use of synthetic rubber for fuel hose. Therefore if
you
> > > wish to run Optimax or Unleaded it is necessary to use
synthetic-rubber
> > > fuel lines and replace any rubber seals in fuel pumps or carbies etc
> > > likely to cause problems.
> > >
> > > I have heard recently of people having problems running Optimax. Just
> > > this weekend at a rally I was helping with servicing. One of the cars
> > > was running Optimax with old lines developed a fuel blockage in a 45mm
> > > Weber. Didn't think of it at the time but i'll have to mention it to
the
> > > owner as a possible cause.
> > >
> > > I learnt a lot of this information from an Aerospace book written in
> > > 1963 talking about fuels used in World War II so it aint new!
> > >
> > > Craig.
> > >
> > > Brad HALLETT wrote:
> > > >
> > > > Mmmmmm I'll have to take my turbo 4wd
> > > >
> > > > (Turbo 4wd diesel ute that is)
> > > >
> > > > On a more serious note, I was talking to a bloke today from Western
Oz
> > who
> > > > told me that during the testing of Optimax fuel over there, they had
> > > > repeated problems with it eating fuel lines and causing fires. I am
> > using
> > > > Optimax and I think it is great, but perhaps we should all use a bit
> of
> > > > caution and check our lines regularly
> > > >
> > > > P.S. Cameron isn't it time your old man bought a dyno?
> > > >
> > > > Regards
> > > > Brad HALLETT
> > > > http://www.powerup.com.au/~bhallett
> > > >
> > > > Proudly Endorsing:
> > > > ...DATRATS...
> > > > http://203.33.35.34
> > > > Datsun Dedicated
> > > > For Nissan Motorsport Components
> > > > Professional Budget Priced competition equipment
> > > > Contact Errol SMITH
> > > > email: [EMAIL PROTECTED]
> > > >
> > >
> > >
> > >
> > >
> >
> >
> >
>
>
>
>
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