Would a car's exhaust pop more or less with high octane?

You can see it on your picture.

The exhaust pipe (which I shouldn't have to point out to you italian doofus) goes straight into a transverse mount muffler. Friend of mine had a Jeep patriot with a big ass muffler like that and argued with me for about 45 seconds that it was the gas tank.

Am I mistaken? I might be a doofus too, I just never did the research.
 
lord_galathon said:
J'etais a moins de 50km de range, c'est pourquoi je suis alle refiller la. Leur essence est 10~15¢ de plus que la 91 du Costco day in day out mais effectivement ce serait une belle experience a faire. Le trouble c'est que j'ai mis du Costco pas mal tout l'ete quand il faisait 25ºC pis la il fait plus froid. J'ignore comment cela va affecter la performance et consommation: A ce que je sache de l'air plus froid = plus de performance (d'ou les CAI) mais sur un turbo l'intake est different donc j'ai aucune idee...



I'd be surprised if FCA sold a stock car without a muffler. How do I tell? Exhaust are my biggest weakness in terms of identifying car parts. Never know if it's a CAT, resonator, muffler...

View attachment 29807
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The muffler is the big thing on the top
 
ThePapi said:
You can see it on your picture.

The exhaust pipe (which I shouldn't have to point out to you italian doofus) goes straight into a transverse mount muffler. Friend of mine had a Jeep patriot with a big ass muffler like that and argued with me for about 45 seconds that it was the gas tank.

Am I mistaken? I might be a doofus too, I just never did the research.
Click to expand...

I'm pretty sure it's the muffler since all four tail pipes come out of it. Never seen a gas tank with tail pipes although you never know what Jeep are up to...
 
jp_max_01 said:
Petro 94 > V-Power 91 ???

Moi je met tjrs du 94 (Sti Stage 1), je pourrais considérer du V-Power? Ou rester au 94? Ou c'est toute la même chose?
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Reste au 94 si tu brasse le char et il est chippé en plus. Le V-Power fait pas l'affaire dans mon cas en piste dans les journées chaude, l'ECU pull du timing rendu à 15-17 minutes de sessions, 94 octane régle le problème.
 
Quand je descends aux States, ils ont du V-Power 93 Octane je donnerais n'importe quoi pour l'avoir ici.
 
lord_galathon said:
I usually gas up at Costco, always 91 octane. This morning I had to fill up at shell and I put their 91 v power. First time I fill up the 124 there.

I find the exhaust pops way more.

I tend to trust Costco's fuel more than the local shell in Ile Perrot since I read recently that a Petro Canada was selling regular fuel for 91.

I'd be surprised if Costco would risk their reputation.

Petro Canada got a slap on the wrists btw...

Anyways now the exhaust pops more. Like way more.

I like it but which fuel would make it pop?

Manual recommandation is 91 fuel for my car but says it will run fine on 87. I refuse to put 87 in a turbo.

Anyone?

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Ca pop plus que ca?
 
lord_galathon said:
Le trouble c'est que j'ai mis du Costco pas mal tout l'ete quand il faisait 25ºC pis la il fait plus froid. J'ignore comment cela va affecter la performance ]
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La température froide va avoir bien plus d'effet qu'un gas 91 vs un autre... même pas comparable. C'est encore plus vrai avec un turbo.
 
MrSpace said:
v0ac sur le forum vient de s'acheter une c63s flambette. Hâte d'entendre ça!

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Elle a pas mal moins de son que l ancienne V8... mais quand meme plus qu une BMW!


Envoyé de mon iPhone en utilisant Tapatalk
 
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