Why Do I Smell Egg?!

[Hadouken]

So,

If I boot it and then stop shortly there after, I get a sulphur smell in the car. Also if I go up a really steep hill on approx 2.5-5psi, so just holding revs while going 110 that same smell creeps into the car.

My cat is only about 6k km old.

I have also tightened up the bolts around the cat.

What else could be causing me this stinky smell?

[Hanaldo]

What petrol are you filling up with?

[Hadouken]

BP/Shell 98

[scotty nm35]

I used to come home stinking of that pungent sulphur smell after a dyno session, hasn't happened since I defected to e85. Perhaps that is your best option?

[Moodles2]

Charcoal canister still hooked up? sometimes the hoses blow off under boost

[Hadouken]

faark. I want to go e85 too, so now theres another reason haha

[Hadouken]

Charcoal canister still hooked up? sometimes the hoses blow off under boost

Yes, and Im pretty sure all hoses are still on

[Hanaldo]

It's most likely nothing to worry about mate, most petrols have sulfur in the additives. Some are better/worse smelling than others. Are you filling up from the same petrol station every time, or have you recently filled up at a station you don't normally fill up at?

[SiR_RB]

catch can venting to atmosphere?

[Hadouken]

catch can venting to atmosphere?

No catch can.

Im not worried I would like to f**k it off haha.

Petrol stations, are usually 1 of 5. and all 5 fuel depots give me the same result

[The Dan]

I would remove the cat and check it. The smell is usually a sign of the catalyst not keeping up with the demand. If it's a 100 cell cat, this can be quite normal

[Hadouken]

I would remove the cat and check it. The smell is usually a sign of the catalyst not keeping up with the demand. If it's a 100 cell cat, this can be quite normal

Ah indeed it is a 100cell cat. stupid cat.

[The Dan]

Ah indeed it is a 100cell cat. stupid cat.

My next suggestion was going to be maybe you left some fried rice in the glove box after a night out at Golden Palace so I'm glad it's a 100cell cat.

The fried rice will tend to change smell anyway and I've only had that problem twice before so it's not common in the Skylines

[Hadouken]

My next suggestion was going to be maybe you left some fried rice in the glove box after a night out at Golden Palace so I'm glad it's a 100cell cat.

The fried rice will tend to change smell anyway and I've only had that problem twice before so it's not common in the Skylines

Haha, didnt even think a container of fried rice could fit in the glovebox.

Ah well, the life of running a cat i spose. Decat pipe one day

[Hanaldo]

Haha, didnt even think a container of fried rice could fit in the glovebox.

Ah well, the life of running a cat i spose. Decat pipe one day

Decats are worse

[Hadouken]

shiiiiittt... f**k it. It doesnt bother me, but the thought of where it came from did.

I thank you all. When I go e85 I will abolish it haha

[abr33]

On the topic of cats, my cars been tuned on no cat, im fitting a 100 cell cat, with a 4 inch body on a 3 inch pipe, will it change the tune much? and for lean or rich? Im getting a retune after just not sure if I should baby it before tune with new cat. Running 338kw on 22 psi. On caltex 98

Any help would be good thanks

[Hanaldo]

Depends on how much it flows, if it is a restriction then it will change the load points. But if it's a well flowing cat then it shouldn't change the tune much at all. I did a back to back test on my car with the exhaust on/off from the front pipe back, made hardly any difference.

Safest to get it checked first, but you shouldn't have to baby it TOO much.

[abr33]

Thanks Hanaldo, ill wind it back to 14 ish psi for the trip :-)

[old mate]

just for sake of conversation my work ute does this too but only sometimes. its an 04 holden rodeo 3.5l v6 and the only unusual thing about this car is that it chews through the oil. i will do an oil change or really top up about every 4 months and only about 500ml will come out. so, maybe the smell might also have something to do with oil consumption.