g60griff 0 Posted July 22, 2005 when i have run round town for a bit and the car is running a bit warm if i nail it lets a massive bang and flame out of the exhaust, sounds and looks great. but is there anything to worry about. Quote Share this post Link to post Share on other sites
Critical_Mass 10 Posted July 22, 2005 back firing maybe, not an expert myself though, sounds like it to me though Quote Share this post Link to post Share on other sites
dazzyvr6 0 Posted July 22, 2005 could be overfueling,which sometimes could be bad,and will kill the cat if its got one fitted Quote Share this post Link to post Share on other sites
bcstudent 0 Posted July 22, 2005 I'd say the ignition timing is a good place to start. Does the car run ok or does it feel a bit flat? Quote Share this post Link to post Share on other sites
steveo29 0 Posted July 22, 2005 dont moan about it...load of people pay £££ to get thier car to do that lol Quote Share this post Link to post Share on other sites
Rob_B 0 Posted July 22, 2005 have you had the car chipped? i have found that a jabbasport chip did this to mine as it overfuelled alot. get rid quick if you have one Quote Share this post Link to post Share on other sites
Walesy 0 Posted July 22, 2005 could also be a hole in the exhaust or manifold... Quote Share this post Link to post Share on other sites
g60griff 0 Posted July 22, 2005 got a jabba chip, full stainless with de-cat. i thought it might be over fuelling. it runs fine and pulls like a train. only does it when ive been around town and it gets hot. was going to sell it but decided to stick with, its too much fun. Quote Share this post Link to post Share on other sites
G60Jet 1 Posted July 22, 2005 Jabba chip, its bound to be over fueling then, get an sns chip in it, 10% better fuel costs and miles more punch Quote Share this post Link to post Share on other sites
stevemac 0 Posted July 22, 2005 could also be a hole in the exhaust or manifold...Either that or a leaking gasket - unburned fuel in the exhaust will only ignite if there's oxygen in there too. Could also be caused if the cam timing is out of sync with the crankshaft (car wouldn't run very well) or with some "fast road" cams. Quote Share this post Link to post Share on other sites
g60greeny 0 Posted July 23, 2005 try this for car in question(right click save target) Quote Share this post Link to post Share on other sites
stevemac 0 Posted July 23, 2005 Definitely too much unburned fuel getting in there .. :shock: Quote Share this post Link to post Share on other sites
g60greeny 0 Posted July 23, 2005 it does look and sound kinda cool though,even though he nearly burnt all of the hair of my legs once Quote Share this post Link to post Share on other sites
stevemac 0 Posted July 23, 2005 Could be worth checking the Lambda probe - won't be the initial cause but if all the excess heat has knackered it, the car will overfuel even more. Only time I've seen flames like that has been with a very high-lift cam. If the car still has a std cam, I still reckon one of the manifold gaskets is leaking. Does the car misfire or run lumpy on idle ? Quote Share this post Link to post Share on other sites
g60griff 0 Posted July 23, 2005 runs fine on idle. still got standard cam. il check the lambda tomorrow. scares a few people. a scooby was going to play last night then saw the flames and didnt bother. Quote Share this post Link to post Share on other sites
stevemac 0 Posted July 23, 2005 a scooby was going to play last night then saw the flames and didnt bother.That'll be because your exhaust emmissions make your car look like it's been seriously well tuned. :D Quote Share this post Link to post Share on other sites