Intercooler on NA L28

[waxhead]

Yeah your findings are pretty much the same as mine
I use tolly all the time now when I race anything , or methyl benzine as some companies call it

[garvice]

cant paint it red and say its a fire extinguisher???

HA! That would be an interesting event if someone ever needed to use the extinguisher.

[Scando]

I suggest you get try some 98 and toluene running at 25%
Put it on the dyno and do a back to back , i think you will be happy

Can't do.  Our fuel has to comply with the definition of commercial fuel or race fuel under schedule G of the CAMS manual.  What motorsport do you do where you're allowed to run blends?  I thought it was banned across pretty much everything controlled by CAMS?

I'm not saying avgas is the be all and end all of fuels.  If you can find me something better for $3 a litre that is legal for me to run then I'd be keen to hear more about it.

How is your friend with his 200sx getting past the issue with the leaded fuel stuffing his o2 sensor or are they running a stand alone system that doesnt run one

I don't know that much about the car but I know the standard management is long gone.  I believe he's running a Motec.

[waxhead]

Just because the rules say you cant do something doesnt actually mean it never happens

But if you take a sniff of the modern race fuels you can smell the touelene

I also have a friend that works for marsden point refinery in New Zealand , we got the chemists there to break down "trick" brand racing fuel that was allowed, once we knew what was in it we could make it and it passed all tests

[bluerat]

Wax and RbZ, would you say that 98 and 20-25% Toluene would be close to a straight replacement for avgas, that is, would you run the same compression ratio and dist advance? I'm not far of dynoing a new motor (L20 not 28) and am pretty keen to try both? what do you pay for 20 ltrs of toluene?

It's strange, the guy Scando's talking about is very switched on, very, very experienced and conected. He is not short of resourses, if you get my drift, he owns his own engine and chassis dyno's! nine bucks a litre would'nt faze him at all, must be something in it?

I better make sure I'm the scrutineer with the fuel test kit, LOL....

[bluerat]

Talking about painting your blue bottles red.....did you know the works Lancia Delta's in group A WRC rallying used to change there fire exting's after every stage, only when the Celica's were getting close though....and have you heard of a 'Sneaky Pete' NOS bottle, same diameter as the inside of roll cage tube or air (gas) tight roll cages??

[waxhead]

I think its need to be made clear we are all talking in own experiences here
What some person may find is different to what some one else finds , so it would seem
I used to use avgas then tried mixing it with normal fuel.
It showed up as reduced lap times and so i went down a different tract and got 98 and mixed it with toulene it showed up as better lap times and a cooler running engine.
It made more torque in the mid range over the avgas. This was while we were racing karts , from there i went and started racing jetskis and also started building race engine for other people
Alot of these people were using avgas as well while i was running toluene blend and i was beating them out of the gate every time.
I then started work as a automotive tutor back in new zealand. We had a dyno there so i took the time to dyno the test mule car we had. using all three combos as well as normal fuel.
The toluene showed up as stronger in the midrange, it makes sense as this is what the f1 cars were running in the turbo days at up to 85%.
I have used it ever since in all forms of motorsport i have been involved in except for the small time > used c16 that nearly sent me broke.


The price i pay for it is $60 for 20 litres but bear in mind I am mixing it and so 20 litres goes alot further

[RBZ 260]

Blurat on my car sr20det with avgas left evrythign as it was. the ecu will readjust itself after few kms. so runs crapish for a while than it improves.so on older type cars and carbs im assuming u need to check the timing, plugs and improve compression to get most advantage out of it.


with c16 i adjusted bit more timing 1deg from memory and slightly more boost. still max 16psi. my norm was 1bar at 14.7psi.

after that experiment i ran 98 with 20% tol mix till price of petrol started going through the roof. so boost was reduced from 16psi down to 14.7 and ran 98 from than on. also few changes were made afterwards like bigger intercooler so it was safe to run the higher boost. but never felt the way it did with 98/20%tol mix nor the C16.

C16 i only used it once and at back than at 12 PL was steep but lets say 10L of it for a drag nite to improve the times would be worth the money. pitty the time i experimented with it. wasnt on the track. bastards closed it. so never got any numbers to back it up. all i know that my mates s14 did 12.9 @ 108mph and he beet me about a 1/2 car lenght maybe 1 car dependign how well he hooks up.
when i experrimented with c16 was the other way around 1car maybe tad more me being ahead so definetly worked.

saying that it will be expensive to run your car daily on it.

for street use 98+20%Tol is cheaper alternative for sure. even i think with avgas. avgas i was paying 2.30per liter thats when 98 was around  87c i think. also was pain to fill the avgas as pump had the bigger nozle wouldnt fit in the unleaded tank hole. made plastic attachment but the guy was bit worried due to insurance so than had use petrol cans so became a pain.

once the track reopens im definetly taking the Z .first run on street spec and 98 than with jungle juice brew .than after that removing all the unnecessary weight ie seats spare wheel etc. no exhaust, deflated tyres or realy stiky street tyres (more grip) ... and run with 98+20% to see the improvments.

[mtopxsecret6]

so.. What conclusion can we come to about front mounted air cleaners then?

minus the price of egg's in china please.

[Zeddophile]

so.. What conclusion can we come to about front mounted air cleaners then?

minus the price of egg's in china please.

see my post on page 2 for my experiences on that.

[RBZ 260]

Greg should change the title to

Re: Intercooler on NA L28 and other Fuels.