wow no low end power
 

alright the car runs great when I keep things under or around 4k rpms for driving around town. After I take it to higher rpms and it actually sees the full 8psi, it seems like the car just dies off between 1-3k for the next 15 minutes.

d16y8 - stock internals
t3 - 8psi
s-afc
450cc injectors
fmic

I've been told that the s-afc advances the timing quite a bit. Would this lack of power in the low end after seeing boost be due to that? or is it something more like a pressure drop?

I bought a BTM to help with timing and have been told not to tap into the vacuum on the FPR, but I didn't think the gauge would be that big of a deal.

Also what are the effects of:
1. not having the 1st o2 sensor in the downpipe on a obd2 car?
2. not having this in the intake? and does it go before or after the turbo
http://rustdha1o.home.mchsi.com/engine03.JPG


http://rustdha1o.home.mchsi.com/engine02.JPG
http://rustdha1o.home.mchsi.com/engine01.jpg

Re:wow no low end power
 

If anyone has some tips on afc settings that would be great. These seem to be working ok for regular driving, but maybe they're too rich in the high end? Flooding could be an issue I suppose, but I was afraid of running lean. I'm really at a loss here. I intend on taking it to a dyno soon, but I don't quite have the time or money at the moment.

lo
1k -41
2 -41
3 -40
3.5 -38
4 -37
5 -36
6 -35
7 -34

hi
1k -41
2 -40
3 -40
3.5 -39
4 -37
5 -36
6 -35
7 -32

Thanks in advance for any pointers. I'm always trying to learn more about this so it's appreciated.

Re:wow no low end power
 

hmmm the afc settings seem ok./..maybe a tad to rich on top, but should be fine...it could be the 1st o2 sensor you don't g\have that is causing the problem

Re:wow no low end power
 

Check your base timing...

Re:wow no low end power
 

this may seem ignorant, but how do I do that?

Re:wow no low end power
 

You have a 1.6L 4 cylinder honda motor... your not supposed to have low end power lol.

Re:wow no low end power
 

The first o2 sensor is the one that controles your air/fuel mixture, the second one moniters the converter.

Re:wow no low end power
 

lol well yeah I'm aware of that, but it's worse than usual

and highroller, I had read that - so you're saying that's my problem?

Re:wow no low end power
 

do you have your exhaust hooked up? if not, it would definitaly help

Re:wow no low end power
 

I would think you should start hear, instal the front o2 in the bung, hook up the front o2 wiring, leave the rear 02 unhooked and try that ;)