WHAT IS YOUR MPG?
08-20-2008, 09:02 PM
#181
Member
SL Member
Join Date: Apr 2006
Location: DC
Posts: 84
strup muffler? whats that and also i am looking to get a cherry bomb or magna flow or flow master muffler seeing if that will work or sound nice also thanks for the info on it. i will look into everything and how are you calculating mileage?
08-24-2008, 04:59 AM
#183
Senior Member
SL Member
Join Date: Jan 2007
Location: In Detention block AA-23!
Posts: 913
Originally Posted by cobb
Yup, anything to make the car move easier with leff effort, the engine, etc increases the fuel economy. Some performance parts does this, lowering the car, making sure all wheels point in the same direction.
I too was at 37 or so til the day my manager quit and I spent several hours just cruzing the highway while listening to the radio. I could not sleep and they were splitting my team up across 7 floors of the building we worked in.
Just recently I got a strup muffler and hopefully soon a 4 2 1 header. The mufler seems to help increase it, however my extra fan for colder ac made my mpg go down back to 38-36.
I too was at 37 or so til the day my manager quit and I spent several hours just cruzing the highway while listening to the radio. I could not sleep and they were splitting my team up across 7 floors of the building we worked in.
Just recently I got a strup muffler and hopefully soon a 4 2 1 header. The mufler seems to help increase it, however my extra fan for colder ac made my mpg go down back to 38-36.
Originally Posted by PseudoToad
CObb thankx man i wasnt sure if that really did affect it and im averaging about 37mpg
Any performance parts(exhaust, headers especially) should only decrease mpg.
A drop in K&N or TRD w/ snorkle removal is one thing.
The stock exhaust system is good for what its ment for.. good mpg.
At 25K miles, when spark plugs need replacing go to Iridium plugs to increase mpg.
Ohhhhh, and pay close attention to your driving... Scangauge 2 is highly recommended.
08-24-2008, 09:32 AM
#184
Senior Member
SL Member
Join Date: Aug 2007
Location: DubV
Posts: 1,267
Originally Posted by Super-Stormtrooper07
Originally Posted by cobb
Yup, anything to make the car move easier with leff effort, the engine, etc increases the fuel economy. Some performance parts does this, lowering the car, making sure all wheels point in the same direction.
I too was at 37 or so til the day my manager quit and I spent several hours just cruzing the highway while listening to the radio. I could not sleep and they were splitting my team up across 7 floors of the building we worked in.
Just recently I got a strup muffler and hopefully soon a 4 2 1 header. The mufler seems to help increase it, however my extra fan for colder ac made my mpg go down back to 38-36.
I too was at 37 or so til the day my manager quit and I spent several hours just cruzing the highway while listening to the radio. I could not sleep and they were splitting my team up across 7 floors of the building we worked in.
Just recently I got a strup muffler and hopefully soon a 4 2 1 header. The mufler seems to help increase it, however my extra fan for colder ac made my mpg go down back to 38-36.
Originally Posted by PseudoToad
CObb thankx man i wasnt sure if that really did affect it and im averaging about 37mpg
Any performance parts(exhaust, headers especially) should only decrease mpg.
A drop in K&N or TRD w/ snorkle removal is one thing.
The stock exhaust system is good for what its ment for.. good mpg.
At 25K miles, when spark plugs need replacing go to Iridium plugs to increase mpg.
Ohhhhh, and pay close attention to your driving... Scangauge 2 is highly recommended.
I would think that air easily flowing through the entire engine would help fuel economy.
My best tank with just a CAI is 44.4mpg. I can beat that I know it!
08-24-2008, 05:52 PM
#186
Senior Member
SL Member
Join Date: Jan 2007
Location: In Detention block AA-23!
Posts: 913
Actually the backpressure that aftermarket exhausts create on the system hinders the engines ability to be as efficent as possible (however the design helps to create more hp.... usually by 5-10% increase). The stock oem exhaust is a fairly simplistic design ... not so sure if you could get better then that in terms of increasing mpg .... maybe by removing the pre-muffler(most cars have it.. I believe ours have a pre-muffler) , may increase mpg (not so sure if it would mess with vehicle emission readings at a later date however).
08-24-2008, 06:00 PM
#187
Senior Member
SL Member
Join Date: Jan 2007
Location: In Detention block AA-23!
Posts: 913
Originally Posted by cobb
I hate the fact this car has such a low red line. It seems to just keep gaining power now with the new muffler.
Now, if your talking a S2000 .... those red-line between 8200('04+) and 9000 rpms('00-'03) , but hey they take 91+ octane gas plus get 26 mpg average
Thats like motorcycle technology
08-25-2008, 01:00 AM
#188
Senior Member
SL Member
Join Date: Apr 2007
Location: Richmond, VA
Posts: 2,084
Thats one reason I avoided a cat back and the flow master. Til 4200 rpms many gave less hp and tq until this rpm, then it increased. The strup one I got I found a website with a hp chart and hp plus tq increased a few numbers after 4200 rpms, same before hand. I feel an extra tq off idle and after my usual shift point some more usable power.
Basically the back pressure prevents the spillage of the intake charge going into the exhaust from the valve over lap when the exhaust closes and intake opens. If the cam is redesigned the better exhaust could do more, however most cam designs offer no free lunch. You can do one thing and increase the top end and loose your bottom or vice versa or have a generic setting and medioaka performance across the entine rpm band. I think the vvt is suppose to give us the better performance across the entire range. If I could, I would want more lower end.
Read the dynos before you buy any parts and the reviews.
Basically the back pressure prevents the spillage of the intake charge going into the exhaust from the valve over lap when the exhaust closes and intake opens. If the cam is redesigned the better exhaust could do more, however most cam designs offer no free lunch. You can do one thing and increase the top end and loose your bottom or vice versa or have a generic setting and medioaka performance across the entine rpm band. I think the vvt is suppose to give us the better performance across the entire range. If I could, I would want more lower end.
Read the dynos before you buy any parts and the reviews.
Originally Posted by Super-Stormtrooper07
Actually the backpressure that aftermarket exhausts create on the system hinders the engines ability to be as efficent as possible (however the design helps to create more hp.... usually by 5-10% increase). The stock oem exhaust is a fairly simplistic design ... not so sure if you could get better then that in terms of increasing mpg .... maybe by removing the pre-muffler(most cars have it.. I believe ours have a pre-muffler) , may increase mpg (not so sure if it would mess with vehicle emission readings at a later date however).
Thread
Thread Starter
Forum
Replies
Last Post
BlingSlade
Scion iA Discussion Lounge
6
10-19-2016 12:39 AM