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-   -   WHO SAID CAN'T get Flat AFR'S a Vortech FMU (https://my350z.com/forum/forced-induction/511258-who-said-cant-get-flat-afrs-a-vortech-fmu.html)

OldManZ350 Jan 11, 2011 03:07 PM

WHO SAID CAN'T get Flat AFR'S a Vortech FMU
 
2 Attachment(s)
Attached is a Log of AFR'S, is this Flat?

What do you Think Tim.......?

Vortech, Walbro, 440cc, FMU, 2.87, 32/28 Conservative Street Tune by TimRod Engineering

str8dum1 Jan 11, 2011 03:25 PM

why make another thread for this?

OldManZ350 Jan 11, 2011 03:31 PM


Originally Posted by str8dum1 (Post 8887934)
why make another thread for this?

I wanted to post up my street tune, is that OK with you, Str8dum1 ?

str8dum1 Jan 11, 2011 04:15 PM

seems like you wanted to just bust someones balls....

should be in the tuning section anyhow..

OldManZ350 Jan 11, 2011 04:42 PM

Not at all... Just want to show the Facts.

Also One of the Tuners here asked for Vortech guys to post of their Tunes, so I did.

mazymus Jan 11, 2011 07:51 PM

great numbers man, thanks for posting

what program was used to record that data?

Alberto Jan 11, 2011 08:59 PM

This community is full of overbuilders and people that want to believe the extra parts they have are needed.

mazymus Jan 12, 2011 09:13 PM

oldmanz, do you have stock engine w/ that setup?

OldManZ350 Jan 12, 2011 09:47 PM

Totally Stock.....

ramirj2 Jan 13, 2011 05:54 AM

Your A/F ratio looks pretty good and consistent.
Were these logged on a Dynojet?
At the tail pipe or bung pre cat?
I finally installed my Tuner TXS wide band and have not do any data log yet but my A/F ratios at the display are 1 point rich over the ones logged in the dyno.
I had low 11’s on the dyno pull and low 10’s in the wide band.
Should I adjust through the wide band?

OldManZ350 Jan 13, 2011 07:20 AM


Originally Posted by ramirj2 (Post 8891463)
Your A/F ratio looks pretty good and consistent.
Were these logged on a Dynojet?
At the tail pipe or bung pre cat?
I finally installed my Tuner TXS wide band and have not do any data log yet but my A/F ratios at the display are 1 point rich over the ones logged in the dyno.
I had low 11’s on the dyno pull and low 10’s in the wide band.
Should I adjust through the wide band?

Innovate WideBand, No cats but installed in that area.

What do your exhaust tips look like? black? clean? do you wipe them out often so you can monitor fuel?

350Z_Al Jan 13, 2011 07:26 AM

Looks good!

ramirj2 Jan 13, 2011 07:38 AM


Originally Posted by OldManZ350 (Post 8891678)
Innovate WideBand, not cats but installed in that area.

What do your exhaust tips look like? black? clean? do you wipe them out often so you can monitor fuel?

Black and spitting carbon every time I turn the car on.

mazymus Jan 13, 2011 07:55 AM

Nice numbers. I do see that you have >12 AFRS till mid 5k rpms and around boost of 9. Isn't that a bit dangerous on the engine? Obviously your running great on your stock engine.

mazymus Jan 13, 2011 07:56 AM

Makes me want to go 2.87

RetchedOne Jan 13, 2011 08:03 AM


Originally Posted by mazymus (Post 8891785)
Makes me want to go 2.87

I made the same power on my 3.12 :dunno:

OldManZ350 Jan 13, 2011 08:15 AM


Originally Posted by ramirj2 (Post 8891748)
Black and spitting carbon every time I turn the car on.

Way to Rich, work on the tuning some more.

mazymus Jan 13, 2011 08:31 AM


Originally Posted by RetchedOne (Post 8891806)
I made the same power on my 3.12 :dunno:

I see your car is done! how do you like it?

str8dum1 Jan 13, 2011 08:33 AM

no. 11.8-12.1 is perfect for power and safety. anything richer is leaving power on the table.


Originally Posted by mazymus (Post 8891783)
Nice numbers. I do see that you have >12 AFRS till mid 5k rpms and around boost of 9. Isn't that a bit dangerous on the engine? Obviously your running great on your stock engine.


OldManZ350 Jan 13, 2011 08:37 AM


Originally Posted by RetchedOne (Post 8891806)
I made the same power on my 3.12 :dunno:

Anything is Possible, but I think that if we were on the Same Dyno on the Same Day and Same Conditions that you would Not say that.

Everything is Relative........

Every Dyno is Different.....

Nobody with 1/2 a brain would Dyno a car in Joe blows Shop in Summer and make say 450whp, make some modifications and then in Winter, Dyno in Sam Tucks Shop and make say 480whp. Then say "I made 30whp with those modifications."

When you can Post Up some 118 MPH Plus Traps on a 80-85 degree day in Humid Florida, Then I will say your making the same power....

But then, all tracks are Different Too. Et can vary .040-.060 and 3-4 mph between tracks


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