Aem Wide Band Reading

[onemancrew]

I think it seems a bit lean WOT. Usually its around 10-11.8 on boost and 20.0 on backoff.

Im only running off my narrow band though.

I wouls aim to try and get it a bit more rich on boost, you don't wanna run too lean and start detonating. I would rather it be too rich than too lean.



EDIT: Nevermind this post, its already been answered lol. I should of scrolled down first.

 

[IJ.]

I think it seems a bit lean WOT. Usually its around 10-11.8 on boost and 20.0 on backoff.

Im only running off my narrow band though.

I wouls aim to try and get it a bit more rich on boost, you don't wanna run too lean and start detonating. I would rather it be too rich than too lean.

It's "a bit lean" like being a "bit pregnant"

Stoich is 14.7, 14 under power is massively lean!

 

[onemancrew]

It's "a bit lean" like being a "bit pregnant"

Stoich is 14.7, 14 under power is massively lean!

You are correct, point taken, my mistake.

 

[IJ.]

You are correct, point taken, my mistake.

No probs, the Tech section here is held to a higher standard so the information is as accurate as possible.

Welcome to SM!

 

[IBoughtASupra]

Can't go wrong with the Areomotive 341 pumps.

 

[SideWinderGX]

MKIV fuel pump swaps right in, and flows just as much if not more than the Walbro.

 

[ForcedTorque]

Is that a plug in your Accordian pipe, or does that thing have a hole in it?

 

[Northbaysupra]

Lol..Its a plug ..In fact its from an old Tv or somthing, But it fit Perfectly in there ..Great observation !

Ill keep every one posted on my progress of this problem . I get my fuel pump and regulater monday and should have them in by monday night ..

I cant wait to have this fixed so i can turn up the boost to 10-15 pounds on my cx turbo Plus its Sonoma Drift @ Infinian Raceway this wednesday

 

[Another MkIII]

150? lol

Its under 100.00 for a real walbro and install kit...

http://store.driftmotion.com/static/i-walbrofuelpumpfor84-92supra.php

It was a few years ago, and I bought a bunch of parts then so I couldn't remember. But you are right its only about $100 with shipping.
-AM3

 

[Northbaysupra]

so is this info right 10-11.8 is normal on boost ? and 20 off the gas ,idle @13-18 ??

 

[IJ.]

so is this info right 10-11.8 is normal on boost ? and 20 off the gas ,idle @13-18 ??

Yep, small # = rich big = lean

 

[91mk3]

IJ, are you saying an idle as lean as 18 (aem wideband stops reading after 18) is ok?

 

[Northbaysupra]

So Update found out my knock sensor wasn't plugged in !!

I learned my lesson

Don't trust Any one to work on your car !!!

So i set my timing and moved forward ...

But still my car boost at around 14-15 on my AEM wide band

Could it be my throttle position sensor ??

Or is because my waste gate isn't shutting all the way ??

 

[sylquebec]

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=FI&P=73

The GTE stock regulator has a spec of 33-40 without vacuum so you can start there. I myself have run the 43 Ian stated on a stock fuel system 7M with the Areomotive Regulator.

If you click a page back, you will see where you need to jump the terminals to set the fuel pressure.

IS there a difference of doing it this way versus car running at idle? I'm talking about setting the fuel pressure with the b+ and fp connector...

 

[Northbaysupra]

Good question !