user65

Hey hey,

Just finished up the two day mish on installing the downpipe. I spent about 10-12 hours total on the install. A little longer than expected but I took my time, didn't want to rush.

I'm sort of shocked, my AFR is still reading fine - between 14.3-14.7 throughout all of the RPM's. Should I rely on the stock AFR reading from my DashCommand app via the AFR sensor? I can't run my PLX AFR gauge until the mid-pipe is hooked up with the special bung for the O2 sensor. The midpipe wasn't installed because it was cut for a custom exhaust versus stock, so it's a bit longer.

Just wanted to get your thoughts, I thought I'd be running much leaner than this with the downpipe and hondata combo.

edit - I'm running a K&N typhoon intake, ETS intercooler, turbosmart BPV adjusted 2 turns out with the above mentioned hondata and jalper downpipe with stock exhaust and midpipe.

BU

Wait until you get these " PLX AFR gauge until the mid-pipe is hooked up with the special bung for the O2 sensor" install.

That's will be more accurate AFR.
Then tell us the good news

wspy

An AFR of 14.3 - 14.7 @ WOT is lean for a turbo application. You should be more in the 12-11 region IMO. Albeit, what was the AFR @ WOT with the Hondata before the downpipe?

user65

Thanks for the replies!

I was pretty much at the same AFR before the install. 14.3-14.7. I know it's between those two at WOT, but I'll do some more tests today and determine the exact number.

Since I can gauge intake temp with DashCommand I'm going to do some test runs with the k&n then run the stock intake to see which runs cooler. I'm thinking running the stock intake might make it just lean/rich enough to run the hondata and downpipe combo.

Downpipe is dope! I really hope I can get it to work safely with Hondata.

bluecarbonfiber

the midpipe no cat should lean ya out alittle also i would be more curious with the full exhaust added to it.. the intake should of been your last install

BigHatch

the #'s may change over time as the engine adjust to the mods

user65

Thanks for all the replies.

11.7-12.0 afr at wide open throttle upon multiple tests. This was done after about 250 miles with the downpipe.

Haven't put the stock intake back on yet. Going to wait on the mid pipe for that.

bluecarbonfiber

still a good area.. i would think your goal is to hover around the 11.5 at full boost with everything added

bluecarbonfiber

forgot to ask if you added any mpg since the downpipe added

user65

I did! Thanks got asking I forgot about that. Single freeway trip so far jumped me to 22.5. So almost 2mpg's

Lanesky_OH8RDX

thats a nice bump for sure.

ivan_baez

where did you get the downpipe from?, any CEL's?