Octane booster Vs super unleaded

[tommi]

As titled which is best. The fuel around here is all 95RON shite and to be honest I do not think it is to good for older engine's that don't have the timing retard facility built into them. Which of all the booster's if any would you guy's recommened. Also diluting with ethanol does this increase RON.

[Sunnysidebb]

As titled which is best. The fuel around here is all 95RON shite and to be honest I do not think it is to good for older engine's that don't have the timing retard facility built into them. Which of all the booster's if any would you guy's recommened. Also diluting with ethanol does this increase RON.

V power by far the better option , then either Aldon octane booster, Millers CVL or Pro-boost are a good start. Bloody expensive way to go about it though over a long period.
Another good way the Americans help reduce detonation with crap fuel & high boost levels is Water/Methanol injection. The modern kits are fully mappable with very good safety devices should you run out of water. Have a look on the Internet.
Frank

[Paul RS]

We don't get v power here

[Sunnysidebb]

We don't get v power here

Then have a look at this. Its serious stuff and works well :
http://www.aquamist.co.uk/vbulletin/index.php

You will be surprised as to how Water/Methanol injection has moved on.
Frank

[tommi]

Sounds interesting Frank. What effect would it have on say a standard or mildly tuned motor. I know there is a whole technical side to this and have heard people say that it would not be worth while on standard cossie but if it was a way knocking/detination I where fuel was sub standard it sounds like a good option.

[Sunnysidebb]

Sounds interesting Frank. What effect would it have on say a standard or mildly tuned motor. I know there is a whole technical side to this and have heard people say that it would not be worth while on standard cossie but if it was a way knocking/detination I where fuel was sub standard it sounds like a good option.

The way to go with it these days is not just to fit it and thats all. You have your car mapped to run it either for huge power increases or by the sounds of it you are after reliable standard power with 95 ron fuel.
Once mapped, they set a default boost limit if the water injection was to fail.
It does not give more power in its self but to give you a small insight into tuning.

Most tuners tune an engine to run rich, this keeps the EGT lower and the cooling effect of the extra fuel decreases the possibility of knock.
Water/Meth injection ( WMI ) cools the charge and adds a octane rating, so reduces the possibility of knock, also increases the overall density of the charge, reduces EGT and means a tuner can weaken the mixture and run leaner AFR's which with the correct advancement of timing gives more power per bang. Usually good results with 50:50 water/methanol.
Just a very very simple explanation.
Disadvantages are:
1. If you run out of water/meth then the boost is reduced to a safe limit so reducing the power a bit.
2. In winter the water/meth can freeze. Although Methanol in an anti freezing agent as well below -7 can be a problem

The thing to remember is if it is just to protect the engine againts lower octane fuel, with good IC's you probably wont require much water to be injected

Best to have a good read about it.
Frank

[Sunnysidebb]

Just a thought.
Who told you 95 was shite. It is if you are running big power. but it is still possible with a good tune to tune a car to run very well on 95 so long as your keeping the tune well in the safe zone. A good mapper will know exactly at what point detonation will occur and will map you car accordingly.
So have a think about getting a decent Tune/Map. Its the safest and easiest way to go.

My old ESCOS is on EBAY at the moment. If you look it has 8 injectors ( 4 grey and 4 803 greens) its not an RS500 set up at all. I made some injector seats welded them in and ran en extra set of injectors. Collins Motor Sport made me a twin level ECU one with a full GPA program and one for 95 unleaded. I just flicked a switch on the dash and ran either program/injectors depending on the type of fuel I had in the tank at the time. Unfortunatly it so old hat now. Tuning has moved on so much.
Frank

[tommi]

All that technical stuff how do ya mind it all. I am not up on all the tuning stuff to be honest pick up a few things here and there just but would not be confident enough to talk about thing's I'm not sure of but I'm listening. There are no engine mappers over here where I live so going across the pond yer chatting min £1000 to get a stage one car mapped might be over the top maybe i don't know as I don't go racing in it. I just love a real nice responsive car accelerating,overtaking,out of corner's etc you get my drift. As for the 95 RON I have alway's read and heard of tuner's always recommending only use super unleaded. Cheers for all the info on the WI Frank interesting stuff.

[Ben Purnell]

tommi, what car are you talking about exactly, as I get the impression its something older than the escos

if not what's the spec on the escos, as the standard cars are fine and I will use in mine if I can't get super, most off the shelf chips are mapped for super though, I presume they perform better and make more numbers hence the use of super

[tommi]

Alright there Ben my escort is running an L8 with an msd stage 1 so really it is older than the Escos really I guess but was also wondering how WI could help older models of say RS turbos 3dr cossies etc. I get what ya mean alright about tuner's chips looking for the figure's using a more volitile fuel will help alright.

[Ben Purnell]

I only wondered as I use the Castrol valvemaster and either super or normal unleaded in the MG, due to it not having an unleaded head, but using Super does make the car rev easier it seems to struggle on normal above 4000rpm but super it breezes past that to 5500rpm although power goes after 5k