What are you guys seeing your mileage do when you "upgrade" to a different turbo
for example a phat shaft or comparable turbo?

 

in your sig you show you have a 62/14 already how has your fuel mileage been with that turbo.

 

it dropped 3-4mpg

 

That not good I maybe might not considering in getting one now if it drop in that much fuel mileage. Keep the post coming I really like to found out I out because I am thinking of buying one now

 

Anybody else is loss alot on there fuel mileage when adding a aftermarket turbo.

 

I lost mpg also, but also added 295 tires and a body with more drag at the same time.

would the stock turbo in a set of twins keep the mpg up?

 

With all of my mods, my MPG has gone up between 3-4 MPG. The Smarty made the biggest difference because it uses more motor and less turbo.

 

With the Super-B I went up about a mile over-all. The spool up is just a little slower than stock. But of course I have one of the smaller/lower HP turbos. That's all I could afford at the time.

 

I don't think I lost mpg with the SPS66, but too many things went on at the same time to know for sure. I do know that currently with my daily driver triple stack my mileage is better than it has ever been. Not great, but much better than a year ago or so. I can guess that it is the addition of the Smarty in the stack. I average 15mpg city and 18.5-19.5 highway at 75mph depending on the terrain and wind. That is at least 2mpg better than it was for over a year after new.

 

I went up a mile or 1.5 when i did my twins, seems even better when towing.

 

My mileage dropped after I put on my turbo,, but now that I am getting used to it (not putting my foot into it so much anymore,, lol) my mileage is about the same as before.

Kevin

 

Mine was virtually unchanged.

 

Has anyone noticed more of a change/drop when towing with a single?

acook, your idaho twins use the stock turbo on top right?

 

I would like to know more about the Idaho twins
any info?

 

my towing mileage is about the same as the stocker
its the cruising empty thats wayyyyy down