I've heard it changes A/F by .5 from a friend with a Dyno. I've heard from others that it can be done too. Honestly, I don't know how this could be as I thought the cat would eat up some gas if the car was running rich (and get HOT doing it) but the experience of others seems to suggest that's not true. To be 100% sure put it in front of the cat but expect added labor costs and grumbling from the operator. Some dynos, like my friend's, only have a tailpipe sniffer and cannot plug in ahead of the cat - you have to run it at the tailpipe.
I'd love to hear a definative clear answer on this along with an explanation that makes sense as to why it does or doesn't work.
I just bought a Haltech Elite 2500 with wide-band O2 during their sale - 15% off helps :) The plan is to start installing in the spring, along with the VVTi head I already have and 800cc injectors. Otherwise the 94TT is just BPU, on stock twins and fuel, though I am considering Stu's upgraded...
I have searched and read for days and still cant make a decision
my setup as follows
stock bottom end
272 HKS cams adjustable cam gears
AEM v1 (subject to change to something newer) UPDATE new ECU ECUMaster
A1000 fuel pump
Pump + methanol injection...
I've been getting some PM's about this setup so I thought I'd post some pictures now and update it later with results.
I used ignition coils from an 04 Corolla which are "smart" coils with built in igniters. I ditched the stock igniter by soldering the wires together and wired in these coils...
Quick question for your guys. I am over in Ireland, we do not have E85 available here on pump. The fuel available in the pumps here is 95. I do not know if that is RON or Octane.
Any car I ever had was always just setup / mapped on pump fuel.
My question here is if I have a flex...
Got my car(SC300) tuned by Alpha during his trip up to Unit 12 Motoring back in August, figured I should post the results.
Stock 1JZGTE non-VVTI on AEM Infinity
GSC Springs & Ti Retainers
Borg Warner S360 0.88 A/R T4 Single Scroll
FIC 1200cc Injectors(In Sequential Injection)