Exhaust Smell

[lexusIT]

well i don't know if anybody can follow me on this one...

so, I get back home after a few kms of fairly hard driving (red line few times) on a nice winding road...

camcon is on, fuel setting is -2 on 4, 5, 6 and 7 thousand rpm

I remind you people I've never got it properly tuned, so I just play with it any now and then...

well the thing is, once I got back home, I jump off the car and "sniff" the exhaust fumes... and I have a distinctive impression it smells like very hot metal!

Now I don't recall this smell after driving with the camcon off, so the big question is: do you think is the camcon making the difference, making the car running lean therefore with high gas temp? I know this can be correct, but I would be surprised somebody could tell just by sniffing the fumes.... am I crazy?

[P38Aaron]

Crazy for sniffing exhaust fumes??? I think yes!

If you was driving your car hard then an exhaust smell would probably be right.

However i dont have a Camcon so don't know what difference there should be.

[lexusIT]

cheers Aaron :D

yeah well i guess i should avoid this, especially considering I just managed to quit smoking a year ago :)

you see I just figured that an EGT meter can tell you a lot about the fuleing of your car, i.e. lean mixture=higher temps... the question was just if one can tell just by the "nose gauge" :P

I shall quit this mumbling.... :D

[Adie]

Can an EGT gauge to be safe mate if you've increased the performance but not had it properly tuned. You don't want to be detonating else you'll blow your engine up. :o

Have you got any cats on your car? I got rid of all mine and the exhaust stinks

[lexusIT]

I still have the precats on, but the smell it wasn't really a smell... more like when you cook metal, like you put the teapot on the rage, but there's no water in it. :)

Detonation shouldn't be a problem with only such a small adjustment on the a/f ratio, but of course I'm just speculating because I don't have any testing/measurement to back this up...

me goin soon eBay shopping for colder sparkplugs - that should help :D

r