Fordmods Logo

air fuel ratios 

 

Page 1 of 1 [ 15 posts ] 

 
 Post subject: air fuel ratios
Posted: Sun Jun 01, 2008 3:48 am 
Getting Side Ways
Offline

Age: 45

Posts: 670

Joined: 24th Jul 2006

Gallery: 4 images

Location: Geelong
VIC, Australia

hi guys had my car on the dyno few days back knew she was feeling a little flat last run was 143 rwk this run was 140 rwk ino 3 kw so what but uno when uno your cars a little crook, anyway have the afr dyno sheet shes runnign pretty rick take a look

You do not have the required permissions to view the files attached to this post.

 

_________________

EL Fairmont - GT steering wheel -3.45 lsd - superlows - white line sway bars - xr kit - au11 xr8 engine - 3500 convertor -BA XR8 leather interior - ltd woodgrain - di filippo extractors - trick flow track heat manifold - tfs1 camshaft - twin 2.5 inch system venom cats hooker mufflers - 187rwk

Top
 Profile  
 
 
Posted: Sun Jun 01, 2008 12:11 pm 
Fordmods Junkie
Offline
User avatar

Age: 45

Posts: 1000493

Joined: 6th Nov 2004

Gallery: 2 images

Ride: AUXR6 HP With Ducati SupA Bike!

Location: Perth
WA, Australia

lay off the crack!

3kw aint f**k all for different days

something is def wrong with the afrs

 

_________________

RIP SCOTT

Top
 Profile  
 
 
Posted: Sun Jun 01, 2008 4:38 pm 
Getting Side Ways
Offline

Age: 45

Posts: 670

Joined: 24th Jul 2006

Gallery: 4 images

Location: Geelong
VIC, Australia

yeh ino that mate just more concerned about the afr then then power obviously from last run its lost some power guessing it coz of the ratio

 

_________________

EL Fairmont - GT steering wheel -3.45 lsd - superlows - white line sway bars - xr kit - au11 xr8 engine - 3500 convertor -BA XR8 leather interior - ltd woodgrain - di filippo extractors - trick flow track heat manifold - tfs1 camshaft - twin 2.5 inch system venom cats hooker mufflers - 187rwk

Top
 Profile  
 
 
Posted: Tue Jun 03, 2008 10:34 pm 
Getting Side Ways
Offline
User avatar

Age: 40

Posts: 2057

Joined: 25th May 2006

Ride: ef xr8

Power: 229 rwkw

Location: Perth
WA, Australia

Definately way out!


You'll end up glazing the bores if its too rich.

Should be around 12.8-13 continous for an NA set up . You might get a slight fluctuation with the BBM kicking in, but nothing like that.

 

_________________

Because of Beer, Thirst is a Beautiful Thing!

'95 EF XR8 auto, Advance headers, 3" exhaust, Cobra manifold, BBK 75mm throttle body , 80MM Marauder MAF, Vortech V2 T Trim , 307 rwhp, 405 ft/lb 13.2 @ 105 MPH

Now N/A (permanent Lag) - AFR 165's, Comp XE270 cam, 1.6 RR - 269 rwhp 14.1 @ 102mph.

Top
 Profile  
 
 
Posted: Tue Jun 03, 2008 10:42 pm 
Getting Side Ways
Offline

Age: 45

Posts: 670

Joined: 24th Jul 2006

Gallery: 4 images

Location: Geelong
VIC, Australia

so what do we do is the question to get it back to were it shoudl be

suggestions

 

_________________

EL Fairmont - GT steering wheel -3.45 lsd - superlows - white line sway bars - xr kit - au11 xr8 engine - 3500 convertor -BA XR8 leather interior - ltd woodgrain - di filippo extractors - trick flow track heat manifold - tfs1 camshaft - twin 2.5 inch system venom cats hooker mufflers - 187rwk

Top
 Profile  
 
 
Posted: Tue Jun 03, 2008 10:42 pm 
Getting Side Ways
Offline

Age: 45

Posts: 670

Joined: 24th Jul 2006

Gallery: 4 images

Location: Geelong
VIC, Australia

so what do we do is the question to get it back to were it shoudl be

suggestions

 

_________________

EL Fairmont - GT steering wheel -3.45 lsd - superlows - white line sway bars - xr kit - au11 xr8 engine - 3500 convertor -BA XR8 leather interior - ltd woodgrain - di filippo extractors - trick flow track heat manifold - tfs1 camshaft - twin 2.5 inch system venom cats hooker mufflers - 187rwk

Top
 Profile  
 
 
Posted: Tue Jun 03, 2008 11:10 pm 
Getting Side Ways
Offline
User avatar

Posts: 3331

Joined: 27th Dec 2004

Gallery: 4 images

Ride: MCMXCV Falcon

Location: G town
VIC, Australia

{USERNAME} wrote:
Definately way out!


You'll end up glazing the bores if its too rich.



that is ridicules

at worst youve got 10.6 a/f

you could pick up a bit of power in the mid range...but your 12ish a/f for the rest of the range is about right....at best youll get another 5% which i doubt youll even notice and it help max power much, if at all

 

_________________

Image

Top
 Profile  
 
 
Posted: Tue Jun 03, 2008 11:14 pm 
Getting Side Ways
Offline

Age: 45

Posts: 670

Joined: 24th Jul 2006

Gallery: 4 images

Location: Geelong
VIC, Australia

yeh just need to get it right dont want to be wasting fuel for no reason and yeh feels a little fat in the middle

 

_________________

EL Fairmont - GT steering wheel -3.45 lsd - superlows - white line sway bars - xr kit - au11 xr8 engine - 3500 convertor -BA XR8 leather interior - ltd woodgrain - di filippo extractors - trick flow track heat manifold - tfs1 camshaft - twin 2.5 inch system venom cats hooker mufflers - 187rwk

Top
 Profile  
 
 
Posted: Tue Jun 03, 2008 11:52 pm 
Getting Side Ways
Offline
User avatar

Age: 40

Posts: 2057

Joined: 25th May 2006

Ride: ef xr8

Power: 229 rwkw

Location: Perth
WA, Australia

it shows as well.

I'd be checking oxy sensors first though, power wise it wont pick up too much, but it'd be nice to see the torque curve, I assume it would be pretty flat in the mid range.

 

_________________

Because of Beer, Thirst is a Beautiful Thing!

'95 EF XR8 auto, Advance headers, 3" exhaust, Cobra manifold, BBK 75mm throttle body , 80MM Marauder MAF, Vortech V2 T Trim , 307 rwhp, 405 ft/lb 13.2 @ 105 MPH

Now N/A (permanent Lag) - AFR 165's, Comp XE270 cam, 1.6 RR - 269 rwhp 14.1 @ 102mph.

Top
 Profile  
 
 
Posted: Wed Jun 04, 2008 12:00 am 
Getting Side Ways
Offline
User avatar

Age: 40

Posts: 2057

Joined: 25th May 2006

Ride: ef xr8

Power: 229 rwkw

Location: Perth
WA, Australia

{USERNAME} wrote:
{USERNAME} wrote:
Definately way out!


You'll end up glazing the bores if its too rich.



that is ridicules

at worst youve got 10.6 a/f

you could pick up a bit of power in the mid range...but your 12ish a/f for the rest of the range is about right....at best youll get another 5% which i doubt youll even notice and it help max power much, if at all



At worst 10.6? Im sure there arent many people here that run 10.6 AFR ratio's here, not even the turbo boys.

Stoich is around 14 :1 , high comp clevo boys run theres 13-13.5, turbo boys at full boost see there drop to 12-11.7 : 1.

10.6 especially in the midrange is a waste of fuel and surely would be noticable.

 

_________________

Because of Beer, Thirst is a Beautiful Thing!

'95 EF XR8 auto, Advance headers, 3" exhaust, Cobra manifold, BBK 75mm throttle body , 80MM Marauder MAF, Vortech V2 T Trim , 307 rwhp, 405 ft/lb 13.2 @ 105 MPH

Now N/A (permanent Lag) - AFR 165's, Comp XE270 cam, 1.6 RR - 269 rwhp 14.1 @ 102mph.

Top
 Profile  
 
 
 Post subject: this is the torque curve
Posted: Wed Jun 04, 2008 12:08 am 
Getting Side Ways
Offline

Age: 45

Posts: 670

Joined: 24th Jul 2006

Gallery: 4 images

Location: Geelong
VIC, Australia

finally got it to download but yeh see if this helps

You do not have the required permissions to view the files attached to this post.

 

_________________

EL Fairmont - GT steering wheel -3.45 lsd - superlows - white line sway bars - xr kit - au11 xr8 engine - 3500 convertor -BA XR8 leather interior - ltd woodgrain - di filippo extractors - trick flow track heat manifold - tfs1 camshaft - twin 2.5 inch system venom cats hooker mufflers - 187rwk

Top
 Profile  
 
 
Posted: Wed Jun 04, 2008 12:10 am 
Getting Side Ways
Offline

Age: 45

Posts: 670

Joined: 24th Jul 2006

Gallery: 4 images

Location: Geelong
VIC, Australia

just replaced o2 sensor gonna maybe jump on the dyno again on sat see if anythings changed

 

_________________

EL Fairmont - GT steering wheel -3.45 lsd - superlows - white line sway bars - xr kit - au11 xr8 engine - 3500 convertor -BA XR8 leather interior - ltd woodgrain - di filippo extractors - trick flow track heat manifold - tfs1 camshaft - twin 2.5 inch system venom cats hooker mufflers - 187rwk

Top
 Profile  
 
 
Posted: Tue Aug 05, 2008 10:16 am 
Oompa Loompa
Offline

Age: 40

Posts: 33

Joined: 30th Jul 2008

Location: Liverpool
NSW, Australia

my advice, get rid of the chiptorque give yourself some timing at the dizzy and let your standard ecu relearn itself for a couple of days, then throw it back on the dyno, i bet your afrs improve and you gain power, you have nothing to loose...

i had the same experience with a chiptorque, im running a cms stage 3 cam, bigger profile than yours. still on standard ecu and my AFRs are also rich, but not as rich as yours, mid-low 11s when the BBM switches is the richest, i have a flat curve of 400nm till redline nearly, and make 145 -160 rwkw depending on the dyno...

 

_________________

CMS stage 3 cam, CMS stage 2 head, intake, extractors, exhaust...
standard bottom end, standard ECU
14.3 @ 96mph

Top
 Profile  
 
 
Posted: Tue Aug 05, 2008 11:35 am 
Getting Side Ways
Offline

Posts: 6113

Joined: 8th May 2007

^^ again with the Chiptorque bashing? :?

I had a custom tune done at Chiptorque a couple weeks ago to tune the car after fitting a new cam and left their happy.

In an untuned state, i had black smoke bellowing out the exhaust, nice pile of soot in the driveway. Car wouldnt barely idle and had a dreaded rev hang issue which plauged me since i converted to manual, which manual ecu nor proper wiring could fix

Now AFR's are good and idle is perfect. And best of all NO MORE REV HANG woohoo... I would like the afr's closer to 12.7 but im happy with their work. Graph below your looking at the blue lines was my last tune. Red line is an older tune i did with another cam they put for comparision

Basically why knock their work or their product when they clearly have benefits ?

Image
Top
 Profile  
 
 
Posted: Tue Aug 05, 2008 11:43 am 
Oompa Loompa
Offline

Age: 40

Posts: 33

Joined: 30th Jul 2008

Location: Liverpool
NSW, Australia

as i said before, i put one of them on my car so i am talking from experience! and the car went backwards, it was not a custom dyno tune though, it was a tune designed to run with the cam specs and dyno graphs that i supplied to their head office...

 

_________________

CMS stage 3 cam, CMS stage 2 head, intake, extractors, exhaust...
standard bottom end, standard ECU
14.3 @ 96mph

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 15 posts ] 

Who is online

Users browsing this forum: No registered users and 25 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Sun Dec 22, 2024 7:12 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names