Discussion
Anybody on here had any experience of their Cats breaking down?
I Suspect that my 98 4.5 is suffering from blocked Cats (decrease in noise, lack of response and heavy fuel consumption), but before blowing loads on new ones it would be good if I could confirm some of the symptoms.
Also if anybody has some thoughts on where to source new ones from that would be much appreciated - have seen a website which offers Ceramic Cats for the Cerb at £309 a pop!!!!!
Cheers
Jon
I Suspect that my 98 4.5 is suffering from blocked Cats (decrease in noise, lack of response and heavy fuel consumption), but before blowing loads on new ones it would be good if I could confirm some of the symptoms.
Also if anybody has some thoughts on where to source new ones from that would be much appreciated - have seen a website which offers Ceramic Cats for the Cerb at £309 a pop!!!!!
Cheers
Jon
Just had mine decatted by TVR Power in Cov.
I had massive acceleration problems and changed the whole HT part of the car to find out it was a broken down cat!!! Dom at TVR Power has some decatted cats that he can fit to your car.
It flies now so would DEFINATELY recommend you have it done! (Its a lot louder now too!)
I had massive acceleration problems and changed the whole HT part of the car to find out it was a broken down cat!!! Dom at TVR Power has some decatted cats that he can fit to your car.
It flies now so would DEFINATELY recommend you have it done! (Its a lot louder now too!)
Or you can have some replacements made. See www.autocats.com/html/tvr_frame.htm
If I recall, TVR use Emitec substrates that are 400 cells per square inch which makes them quite heavy and exacerbates the problem of them disintegrating around the outside (due to their own mass). Also, the original Cerbera cats use 2 substrate sections per cat (each one being 105mm dia., 74.5mm long).
Blackthorn use a French manufacturer's 200 cell per square inch substrates who does them in ths same 105mm diameter, but 90mm sections - of which they use just one (per cat) and make up the length difference (59mm) with 105mm tubing. The result is obviously lighter and puts less stress on the outer foil. It also offers higher gas throughput, but obviously with less cat-effect, i.e. higher emissions.
If I recall, TVR use Emitec substrates that are 400 cells per square inch which makes them quite heavy and exacerbates the problem of them disintegrating around the outside (due to their own mass). Also, the original Cerbera cats use 2 substrate sections per cat (each one being 105mm dia., 74.5mm long).
Blackthorn use a French manufacturer's 200 cell per square inch substrates who does them in ths same 105mm diameter, but 90mm sections - of which they use just one (per cat) and make up the length difference (59mm) with 105mm tubing. The result is obviously lighter and puts less stress on the outer foil. It also offers higher gas throughput, but obviously with less cat-effect, i.e. higher emissions.
flashheart said:
Please excuse my ignorance but what happens at MOT time? Do you have to put them back on for the emissions/noise??
As already said, you can find places that'll accidentally put the emissions probe up the rear end of a Scooby.
Or you can put the knackered cats back in for 10 minutes (an hour or so job to take off/put back on), as long as they're still having some effect. I think you actually only need to get one pipe tested, so might not even need to bother refitting both cats (will probably depend on how friendly the MOT station is, again). Or you could get a Speed 6, take the cats out, and still have it pass the emissions test...
daver said:
Or you can have some replacements made. See www.autocats.com/html/tvr_frame.htm
If I recall, TVR use Emitec substrates that are 400 cells per square inch which makes them quite heavy and exacerbates the problem of them disintegrating around the outside (due to their own mass). Also, the original Cerbera cats use 2 substrate sections per cat (each one being 105mm dia., 74.5mm long).
Blackthorn use a French manufacturer's 200 cell per square inch substrates who does them in ths same 105mm diameter, but 90mm sections - of which they use just one (per cat) and make up the length difference (59mm) with 105mm tubing. The result is obviously lighter and puts less stress on the outer foil. It also offers higher gas throughput, but obviously with less cat-effect, i.e. higher emissions.
I Thought So!!!!!!!!
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