HI, all these years when I bought a new car I immediately dropped in a K&N air filter, thinking that I got a liitle more MPG. Now that I bought the XA, I am thinking of installing a K&N typhoon, but I dont want to lose the great MPG that I have. If anything, I want to do mods that will INCREASE my MPG. So I am puuting the question to the XA experts, will the Typhoon mod hurt my MPG? And what can I do to increase it? My XA is used mostly for business, and I get reimbursed, and since the MPG is so good I can really make out.

 

no it won't hurt the factory mpg, but what will improve the mpg is a the injen SRI along with a header and a axle back... not for more power, just more effecnt way to improve air flow in the exhaust

 

if you improve airflow, you also improve fuelflow. intakes, headers, and all that nice stuff will increase airflow and increase hp which will also increase fuel consumption. you can't add air without adding fuel too.

the choke these motors up quite a bit from the factory on purpose for gas mileage. the tiny exhaust, tiny intake manifold, and tiny throttle body are there for a reason. also, notice how we get a lot of low end torque which doens't increase as the rpm's rise. that's a good sign that they have small intake passages, short duration cams, and a choked up intake system - all designed on purpose for gas mileage.

if you want a fast car, get a fast car. the 1.5 engine in the xa could probalby make over 150 hp easy with a new intake, ported head, bigger throttle body, header, bigger exhaust, and a better cam. but then you'd get 25 mpg instead of 40

Mike

 

well someone needs to make all those parts, and ill have my 25 mpg 150 hp scion....haha

 

i used to make them for isuzu! but im not motivated these days :-(

 

well lets hook up and create a "heavy" 1nz fe mod list. business opportunity!

 

hmm, maybe. i need a guiney-pig car to do that and I doubt anyone would want to just donate one.

 

i like your thinking there!!! very honest man!!!

i'm the same way when i get home from work

 

hmmmm, let me think about it a bit and well make a business plan

 

i get 25 mpg stock!!!

 

how do you get 25 mpg? the lowest I have gotten (trying to drive hard and fast) is 30 mpg. are you sure you're calculating it right?

 

i don't know rolling on 17's got anything to do with it, but my auto ave 25 -27 mpg.

 

18's yo ;-)

 

This is not good--lots of stop and go? I get 30 in the box going 75-80 on 17s.