Flames! (the good kind)

[stimshady]

generally not following my TVR, i can't see what's happening at the rear end. The sports exhaust gives off a lot of pops and bangs (BlueFlame on a T350) but i was wondering if there would be flames too? i'm sure i hear some pretty loud pops sometimes?

if it's unlikely, then what's the best solution to getting them?!

[Zeemax_Mini]

From what I've read I think it's the de-cats that get the flames going! Dom

[Zippee]

Zeemax_Mini said:

From what I've read I think it's the de-cats that get the flames going! Dom

Yep - You'd need to de-cat it in order to get flames!

[stimshady]

cheers... might look into it, although i think de-cats will make lots more general noise? it's pretty loud as it is.

[Jezz172]

I've been looking into de-cats too.

From what everyone on here and TVR Power have said though they're just too loud to deal with day to day.
i think i'll just stick with a set of sports pipes

[Zippee]

stimshady said:

cheers... might look into it, although i think de-cats will make lots more general noise? it's pretty loud as it is.

I've got a JP back box on mine and it sounds fantastic, TBH de-catting would be just too loud!

[tail slide]

I had de-cats + JP - scared people I overtook and upset neighbours, so I'd say that many would prefer one or the other.

My choice was keeping the de-cats as they also reduced underbonnet temps significantly, but JP sounded good and was well made.

[Zippee]

tail slide said:

My choice was keeping the de-cats as they also reduced underbonnet temps significantly, but JP sounded good and was well made.

Thats a good point actually. Does your car have the manifold heat shield (silver sheet) under the bonnet between the manifold & chassis? If not then it's a very good idea to either get hold of it or reduce the heat in this area, de-catting will help a lot with this. Having seen pictures on here of early cars without this shield and the damage done to the chassis I'd make this my first priority!

[stimshady]

hmmmm..not sure, i will check later - (presumably a big shiny silver sheet is fairly obvious and not hidden away?)

Sounds like the shield is worth getting in any case.

[bogie]

you just need a de-cat and a poorly managed engine thats got just a little bit too much fuel going in...and no cut-off on the overrun ....that will give you flames on each shift quite nicely

manufacturers spend days mapping engines to get them the cleanest and most effiecient to pass tests, but why cant they just leave us a proper "sport" button that turns it into a flame spitting monster LOL

[jrb43]

bogie said:

you just need a de-cat and a poorly managed engine thats got just a little bit too much fuel going in...and no cut-off on the overrun ....that will give you flames on each shift quite nicely

manufacturers spend days mapping engines to get them the cleanest and most effiecient to pass tests, but why cant they just leave us a proper "sport" button that turns it into a flame spitting monster LOL

Er, most manufacturers spend weeks/months mapping engines; there are over 30 parameters to be considered at each throttle opening - though I agree in Blackpool it probably was done in a few days Otherwise I agree, flames require over-fuelling or valve overlap. With turbocharging, it's sometimes done to stop the turbo spooling down on the over run. Or in other situations it's used to cool the cylinder head.

Regardless, it's always important to act your shoe size wherever practically possible

Edited by jrb43 on Tuesday 19th May 18:09