Touring Car Exhaust Flame "pop".

Touring Car Exhaust Flame "pop".

Author
Discussion

Colvette

Original Poster:

844 posts

248 months

Thursday 29th April 2004
quotequote all
Any idea how I can get my vette to do this? When you let off the accelerator on a touring car, you get a little "flash" off flame, which just looks awesome.

As I have no silencers on my vette, it burbles and pops when I change gear or cruise on no-gas. I'd like to get this look without ending up like the "Batman Jet-Car" flames from "The Fast and the Furious".

Anyone?

vetteheadracer

8,271 posts

254 months

Thursday 29th April 2004
quotequote all
I think this will be 'cos your vette will have a return valve on the fuel system that everytime you let off the gas it opens and returns the fuel to the fuel tank rather than bunging it down the exhaust.

You could do this with your vette, but it ain't gonna help your fuel consumption having 8 injectors worth of fuel pumping thru the engine regardless of whether you are accelerating!

Perhaps you should go for the '50s option of a flame thrower exhaust system.

marco

1,727 posts

285 months

Thursday 29th April 2004
quotequote all
Hi

If its anything like TVR then you only get proper flames if you do not have the catlyst in place. (I assume your vette has one)

One of the main things I miss when I went frm a pre-cat Griff 4.0 to a Griff 500.


Marco

Colvette

Original Poster:

844 posts

248 months

Thursday 29th April 2004
quotequote all
Yeah, I have a Cat. Wanted to make it loud, but still legal!

Gixer

4,463 posts

249 months

Thursday 29th April 2004
quotequote all
Malc's Callaway spits flames on the the over-run

malc350

1,035 posts

247 months

Thursday 29th April 2004
quotequote all
Ho Ho, knew someone would mention my car!

My Callaway has no cats and "flames on" quite convincingly if you give it quite a bit of throttle and bang it into the next gear.

For max visual entertainment though it's best to wind it right up (with the old L98 engine that aint many revs, less than 5,000 anyway) and rapidly back off the throttle.

This also can make quite a startling sound - rather similar I'd imagine to a driveshaft coming through the floor.

I think it helps if your car is manual as you can be more brutal with it.

Bear in mind Callaways have 2 extra injectors so under boost it is really flowing some fuel so backing off must result in a rather large amount of unburnt fuel spitting out the exhaust.

I'd also imagine that there is a very real possibility that one day I'm gonna blow the exhaust off the car!!!

Colvette

Original Poster:

844 posts

248 months

Thursday 29th April 2004
quotequote all
Mine fit's the bill there - it's manual, and revs a lot!

So removing the cats will produce the desired results, huh? That being the case, how do I get it through an MOT?

malc350

1,035 posts

247 months

Thursday 29th April 2004
quotequote all
Mate of mine removed the cats on his Ferrari 360 - definitely recommended for proper exhaust note.

MoT tester's will bring back hanging if you put a post-93 car in for an MoT.

Only thing you could do is put the car through the test with cats and remove them afterwards...

Colvette

Original Poster:

844 posts

248 months

Thursday 29th April 2004
quotequote all
malc350 said:
Mate of mine removed the cats on his Ferrari 360 - definitely recommended for proper exhaust note.

MoT tester's will bring back hanging if you put a post-93 car in for an MoT.

Only thing you could do is put the car through the test with cats and remove them afterwards...


Hmmm... I would imagine that could get VERY expensive...

Unless, of course, someone makes some kind of detatchable cat?

malc350

1,035 posts

247 months

Friday 30th April 2004
quotequote all
The Ferrari cats just unbolted at the flange either side of the cats.

My mate bought a stainless steel exhaust (£2,000!!!) that included a pipe you could bolt in in place of each cat.

Made swapovers very quick and comparatively easy...