Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Air intake muffler delete on a Pontiac Sunfire

Silvey01 · 07-13-2011, 11:31 AM

[QUOTE=Phantom;249928]It sucks that its such a PITA to remove that from your car it takes about 25min

The air box is not really a restriction till you get into high RPMs and the MPG change will be .01-.7 better at most IF driving it the same way as before. The real benefit to this mod is better throttle response, and that can save gas.

Phantom, thanks for the post. Whether it was a PITA or not. I'm glad I did it.

I've actually done this mod on my girlfriend's (now wife) 2001 Sunfire with a 150k miles on it. It had the older OHV 2.2L engine and an automatic transmission. She went from getting 26 mpg to 28 mpg. It had no other mods done to it. I'm hoping for around that kind of gas mileage but I'm not betting on it. Every little bit helps.

07-13-2011, 11:31 AM	#6 (permalink)
Silvey01 Hot rodder eco wannabe Join Date: May 2009 Location: kansas city Posts: 25 The truck now the car - '04 Pontiac Sunfire SE Thanks: 9 Thanked 0 Times in 0 Posts	[QUOTE=Phantom;249928]It sucks that its such a PITA to remove that from your car it takes about 25min The air box is not really a restriction till you get into high RPMs and the MPG change will be .01-.7 better at most IF driving it the same way as before. The real benefit to this mod is better throttle response, and that can save gas. Phantom, thanks for the post. Whether it was a PITA or not. I'm glad I did it. I've actually done this mod on my girlfriend's (now wife) 2001 Sunfire with a 150k miles on it. It had the older OHV 2.2L engine and an automatic transmission. She went from getting 26 mpg to 28 mpg. It had no other mods done to it. I'm hoping for around that kind of gas mileage but I'm not betting on it. Every little bit helps.