Renntech Pkg1
Thread Starter
MBWorld Fanatic!
Joined: Dec 2008
Posts: 4,411
Likes: 69
From: Socal, Chino
E55 2006 / CLS55 / S450 / Jag XKR2011
Renntech Pkg1
Guys, is that true you get +2MPG with Renntech ECU tune with Pulley upgrade ? Anybody has Renntech ECUS tune can confirm this ?
I always thought the more HP = -MPG
I always thought the more HP = -MPG
Member
Joined: Dec 2009
Posts: 245
Likes: 0
From: PHX and NYC
11 QX56, 09 E63, 00 S2000
Factory ECUs are usually richer to prevent detonation especially on FI vehicles. So most of the time you can gain some hp by leaning out the mixture and playing with the timing across the band.
Member
Joined: Nov 2008
Posts: 132
Likes: 1
From: Columbus OH
A4, M3, 996, E55
I have Renntech stage 1 but can't say I've ever really kept an eye on my gas mileage. I'd probably be depressed if I kept track of it.
Out Of Control!!
Joined: Sep 2004
Posts: 13,394
Likes: 6
From: San Diego
2015 S212
There are mods you can do that "may" help some with MPG as well, but lets face it 2mpg on your car would be higher than a 10% increase. Running the RennTech 82mm TB with their tune and pulley would definitely have the ability to get better mpg, but I'd have a hard time finding out since I'd be more into punching it to feel the extra power!!
Out Of Control!!
Joined: Sep 2004
Posts: 13,394
Likes: 6
From: San Diego
2015 S212
Retail on the RennTech stage 1 is $4k, but the components and tunes are now changing some so don't buy based on $$. There are additional optins available now so make sure you get what you want. RT's new stuff is nice.
