TVR Cerbera FAQ

12 Mar 2015 | Author: | Comments Off on TVR Cerbera FAQ


TVR Cerbera

This list of was compiled by Patrick Buckland and of the Cerbera mailing list. should be addressed to cerbera@onelist.com The is merely a consensus of opinion, if in please check with dealer.

Can I run on regular (95 RON)

Generally speaking yes you can, any problems other than a in power. The amount of the power is not known. Be aware though the very earliest Cerberas the early cam profiles and/or early ECU versions may pink load.

What sports are available, and what are they Are they legal?

Many find that fitting a exhaust improves the sound of the car no because it adds a lot of bass to the tinny noise that the crank AJP8 produces. are a number of systems to choose (one early dealer should be avoided because it doesn’t last). Your port of call should be dealer.

Team Central a good looking system, and are about to produce a system they claim will be proof and gorgeously loud.

The of loud exhausts appears to be a area. Generally speaking the expect TVRs to be loud and seem to have a problem them.

How do I go about de-catting my Is it legal? Will it pass an

A: There is some debate the benefits of de-catting. Most agree that merely the cats won’t cause any as long as the Lambda sensors are in place, and that the ECU does not re-mapping. Simply replace the with equivalent lengths of piping.

The main debate is whether the ECU makes the most of the cat-less or whether re-mapping is required to the benefit. The consensus now appears to be re-mapping, although optional, increase the power over and that gained by merely the cats. Over 460bhp has quoted as the power output of a 4.5 with undisclosed work on the ECU, however other say that a increase of 20bhp is likely.

Looks like somewhere needs to get their car on a

A word of warning though: your de-catted Cerbera on the road is ILLEGAL. There been anecdotal reports of fines for owners of M3s doing

Note also that miserably fail the MOT come its (and subsequent) birthdays. this is not such a problem just bolt the cats on for the MOT and then take them off

A quick mention regarding the of this as well: A catted car up around 10% more fuel one without cats, and converts all its monoxide emissions to carbon – the greenhouse gas. people are of the opinion that convertors were only created to make politicians like they’re doing good for the environment. Whatever opinions, a few expensive sports driving around without is not going to cause the world to

How do I stop the indicator beeper?

A: is a volume control for the indicator mounted on the circuit board which the speedo and tacho are It is on the back (i.e. the side points forwards in the car) of the in the top centre. To get to it, take off the leather-clad that surrounds the top instrument pod by the two butterfly nuts that can be by groping away under the

You may find that you leave fingers behind whilst to find them.

Why do the brakes

A: Race-standard brakes often This is a problem that other supercars just as Brake squeal is caused by the components resonating. This can be cured by fitting anti-squeal which move the resonant out of the audible range for humans cause dogs to explode time you brake near

These are now standard on Cerberas are affected because of the hard of pad used. Later pad fitments are quieter. Dismantling at every for inspection and greasing is a must to pads seizing in the callipers.

is due to a number of factors, including the that you can’t get a proper pull on the lever itself its almost at shoulder height, but because the handbrake itself on a small drum brake at the of the disc, and this small limits the braking torque it can exert. By relocating the cable on the lever the braking effort can be (ask your dealer). A set-up and adjusted Cerbera can be made relatively effective.

Some cars suffer from this, others do not it at all. The draught comes either a poorly sealing seal or from the vents in the screen. Door seals can be a to get right due to the shape of the door. The vents can be partially blocked off foam rubber.

Be wary of them off completely if the later system mods are fitted hot and cold vents as opposed to a system), since this recirculates the air in the cabin, and if the rear are blocked completely the car can steam up no fresh air can enter.

Some neglect to mention that you start the car, partly the throttle as the engine turns This should make it easily. Without this, can be next to impossible, however can easily fail to try this if have got so used to modern managed cars in which you are NOT to use any throttle during starting.

starting keep the engine at 1500 RPM for a minute. Avoid the throttle repeatedly since gives acceleration enrichment to cylinder bore washing or However if there are lots of watching you, repeated of the throttle may be mandatory.

This to vary from car to car. people report dreadful others have no problem at least on FM anyway. Adding an aerial helps tremendously see your dealer or a local ICE for help. If you stereo was fitted by the you may want to go directly to them and about the reception.

If they try to tell you that all like that sir, believe them! It should be however, that AM reception to be terrible on almost all Cerberas.

The chin spoiler is very and tends to get bent and/or off very easily. It is partly to prevent lift at high and thus is extremely important if you to get well into the upper of the car’s performance, otherwise you a chance of the steering going on you just when you really need it (remember that at Le Mans ’99?). Anecdotal speak of no problems at around with the spoiler missing

The other reason for the splitter is to air-flow through the radiator by air entering the underside of the car and thus the pressure differential between the and rear of the radiator. Therefore you experience overheating problems the splitter, however no reports of problems have yet surfaced.

Why it sound like a bag of nails I start it up?

The diesel tractor is due to a few things, but generally that the and engine-bay make no attempt at suppression, unlike your production car. Also it has of noisy gears in the cam drivetrain, and on cars the cams themselves are Later cars have the soft cams, however owners have reported a for the early cams because like the edge that add to the engine noise.

Other aspects such as and tappet clearance also into it, but generally speaking the is meant to be noisy, so stop and go out and drive it!

What on earth is a crank?

Like most the Cerbera’s AJP8 engine a flat-plane crank. Flat-plane that the crank throws are all in a plane – i.e. if you the crank on a desk it would be Laying the crank of a conventional V8 on a desk would result in a three-dimensional wobbly thing there. In both cases the desk will get very

With a twin plane you get evenly spaced firing for every two complete engine but the downside is that you can’t advantage of exhaust pulse effects since the manifold is prohibitive. The Cerbera’s flat crank means that the (essentially) becomes two four engines operating on a common so the exhaust design is made a traditional 4-2-1 set up to take of pulse tuning effects.

a flat-plane crank produces an that is more powerful but in nature. It also means the engine sounds like a of four cylinder engines rather than the classic of a V8 (e.g. the Rover engines in Griffiths and Chimaeras). As a point of trivia, a four cylinder in a boxer configuration, as used by old Beetles and of course the Subaru sounds like a classic V8.

The unusual exhaust sound is even more weird by the V not being 90 degrees. Its 75 degree means the engine doesn’t exactly like two four-cylinder since instead of the firing being 90 + 90 degrees apart are 75 + 105 degrees apart.

I bet you didn’t want all that gory did you? And I bet you’re now wanting to what pulse effects Basically its a technique where gets actively sucked out of the by the exhaust system, due to standing being set up in the exhaust pipes.

I didn’t think so.

What are the for running the car in?

Opinions differ, but is a general consensus that it is being careful, as it makes the smoother and actually more in the long-run. However this is not and some people claim you can thrash the engine from the go. You should be warned however TVR have been known to warranty claims on engine if they find out that the car for instance, been taken on a day when less than miles old.

A sensible is the following:

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