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Its a very good introduction to the topic. Once I had read the book everything made sence and all the further reading I have done on the subject is so much more comprehendable now. Id recommend it. :)

The tweeter has a passive crossover fixed on to it.

Are you running an amplifier? If so you may need to consider a thicker power cable. Think of it as a garden hose. A really thin hose would take you all day to rinse your car with because of pressure. Well its the same with power cables. More current (the electrical water) can flow. A power...

If youre only driving an amp for a sub, just use high level input. The difference is almost inaudiable. If however you are going to amplify all of the speakers then a new HU is the way to go. Laurence

My point is that the car has an airflow sensor. This sends a signal to the ECU to tell it how much air is being introduced, and the ECU in turn looks up the relevant load site at the current RPM and applies the fuel and ignition setting. Simple! If the car is getting more air, the ECU will...

Two facts about induction jits: They do not give more power. They are more likely to loose it, but something like the Viper will not loose horsepower as it is very nicely shielded and may improve throttle response marginally. You do NOT need a re-map after fitting an induction kit. If the...

Come on - you knew someone would say it. LOL

You cant compare rolling road figures, they are not repeatable nor consistent from car to car.

Only problem is that turbo timers mean it doesnt matter how good your alarm is, it is thatcham CAT2 as far as insurance is concerned. CAT1 specification means you cannot have the car running whilst everything is locked and alarmed. With regards to the turbo-cooling, it was a huge issue when...

The only problem is that they are all getting on a bit now. My opinion is that the 172 is the modern day Williams. I wonder if there will be a modern day R5 GTT!

They obviously forgot to stick them on. Its only a stick-on thing. You can order more of them at about £4 a pop.

Go for the white wheels. I love them - it has a real Japanese feel (no bad thing).

ATB: Active Torque Biasing. Even the name is complicated. Read how the dif works and youll really scratch your head. It all makes sence a second time through though. http://www.quaife.co.ukwww.quaife.co.uk Laurence

You only have to look at the Focus RS to know thats not always true!

If you hit the limiter then you will have done a slower 0-100 run than if you would have changed up at a sensible point. The rev limit is there to protect the engine, not to provide an indication that you should be in the next gear. It will not damage your car by bouncing off the limiter...

Kind of. It will only let one wheel turn a predefined amount faster than the other before it starts to pull the other wheel with it. There are loads of factors and parameters for a LSD. How much slip is alowed, how quickly to accelerate the other wheel etc.

I understood that the early MK1s did NOT have a shift light, but all later 172s (MK1 and MK2) have them.

The cleaning additives in Optimax have been proven to work. I rate the cleaning properties very highly.

A fair point. I have never heard of a car that will advance ignition beyond the map settings. I only know of it working the other way i.e. retarding.

1) My point is that ofter degrading - the Optimax RON rating goes down. 2) More octane doesnt mean more power unless the car has been mapped around it. A car such as RobFenns which has been mapped around 95 RON will not benefit from the extra octane in Optimax. 3) Whether the car makes 75bhp...

Optimax is good if you get through it quickly. It has a tank life and degrades very quickly once reached! It is refined at 98.6 RON (not MON) and degrades after around 40 days. I wont bore you with the deep down technical details, but it does! In this 40 days it has to go from the refinery...

Ive heard they are £40.00 from Renault. My mate order some and then his Cup turned up with them on anyway. Result!

I think Renault are pretty good with the warranty anyway. If you fit new seats and your engine blows up then they wont try anything funny. If your airbag light showed up though you may have to pay for the labour to fix it as seats and airbags are related. I replaced every speaker and the head...

Its not my favorite. I think you can do better. I have researched a great deal into it and I go for super plus every time now.

My fingers are firmly crossed.

Optimax is enhanced 95 RON.

I got my cup back in September. It has orange side repeaters. My mate has just got an 03 reg Cup and he has clear side repeaters. How cheated do I feel - LOL! Anyone else have clear side repeaters as standard?

Sequential boxes arent as undrivable as you think.

BenR: Spot on. Im really pleased no-one has mentioned flamer kits yet! My outlook is that real cars dont need flamer kits to make flames. :D

A Cup with a turbo and anti lag for me. Well Im a 1/3 of the way there. LOL!