got a set of cats I could purchase
Discussion
gonna put mine back on saturday, but as they are half melted (almost definately from pervious rebuild), I'd rather stick on some ones that are not (half melted).
Breakers want silly money.
If not, the old ones go on, no probs.. but thought I'd ask. Maybe you have a set that failed MOT but are otherwise intact, etc ??
stu
Breakers want silly money.
If not, the old ones go on, no probs.. but thought I'd ask. Maybe you have a set that failed MOT but are otherwise intact, etc ??
stu
powerlord said:
too noisy. for me anyway. others seem to like it.
You're just not man enough to deal with the fumes and noise!
There's no way in Hell the cats are going back on mine before MOT time. Noise aside, it's great to have the vapours of un-processed petrol wafting around the cabin, mixing it up into a heady fossil-fuel/fibreglass cocktail, underpinned with a stinking hangover...
I overtook 3 pink elephants and one flying pig on the way into work this morning. The pig got a good start off the line, but it couldn't corner for toffee...
Ahem. Never mind.
whitey said:
Well this is the second person on PH who has decided to put their cats back in as it's too loud with CCC's as well. Have you tried putting the standard cans back on to see how that is?
JSG, are the fumes bad? I am very close to de-catting mine.....
The only couple of times I've noticed the fumes are with the roof off, sitting stationary at traffic lights. (And remember that my throttle's currently sticking open, so that was at 1600RPM half of the time rather than 700RPM) With the roof on, I'm still in odeur-de-fibreglass heaven. All we're talking about is the equivalent of a pre-cat Griff or something, remember...
did they just take the inards out in the end then luca ?
jsg, yeh.. maybe you can add menthol crystals to the optimax ? then you can get a menthol smell while you get smoked to death.
I suppose the plus point is they'll be no sitting in the garage with the hose pipe on the exhaust for 60 mins waiting to die.. Death should come in several minutes.
Could make the ideal portable suicide booth (futurama reference)
stu
jsg, yeh.. maybe you can add menthol crystals to the optimax ? then you can get a menthol smell while you get smoked to death.
I suppose the plus point is they'll be no sitting in the garage with the hose pipe on the exhaust for 60 mins waiting to die.. Death should come in several minutes.
Could make the ideal portable suicide booth (futurama reference)
stu
luca brazzi said:
did they just take the inards out in the end then luca ?
Yup. Then borrowed the cans from Sixspeed.
The factory siad there would be a reduction in torque without the cats.....any thoughts?
Engine theory (and I could well be wrong): you'll get a reduction in back pressure that may cause a lowering of power throughout the rev range except at the top end, where you should have slightly higher power. So, slightly lower torque, slightly higher BHP.
BUT... I asked TVR Power about it when they did it, and they just said that it'd make throttle response crisper.
powerlord said:
I thought it was less torquing definately.
all that noise has to come from somewhere at the end of the day.
stu
Was chatting to Dom at TVR Power whilst picking my car up this evening. My decat's a bit different to yours, by the sound of it... they've actually used my cats and removed the catalytic bit, along with putting in an ECU specially designed for that. So, that should deal with the back pressure issue hopefully, and it should get through it's MOT without any trouble from what I've been told.
The car really is insanely quick now... and that's compared to the Chim courtesy car, not the 206 hack used when the Tusc's normally off the road.
Mentioned it on the Cerb forum, but hadn't got round to posting it on here... I raced a 911 GT3 in a straight line from 50 - xxx mph at the weekend (private stretch of dual carriageway
). The look on his face in the mirror was priceless as I eased gently away. 
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