➜ advanced search
Add a more detailed reply Start a new thread in the Engines forum
Home -> Forums -> Engines -> Air fuel ratio

displaying posts 1 to 25 of 30

Pages (2): [1] 2

Author Subject: Air fuel ratio
hovis16

Seasoned Pro

Location: Reading/parts for sale

Registered: 21 Nov 2008

Posts: 4,306

Status: Offline
Post #1
quick things guys will this affect bhp much if the mixture isn't right? but show no signs of hunting stalling or lack of torque. only reason i ask is because my afr looks awful and also my power readings on the dyno seem to be miles off for a rebuilt engine. At this moment i'am changing the fuel rail over to see if if makes a difference

________________________________________

Ph2 Black GTI 6!

EX black 6 owner
But now a Black caged rallye owner

Hunting for Go faster bits!


SEARCH

click here
Posted 4th Jun 2012 at 21:40
Profile
hovis16

Seasoned Pro

Location: Reading/parts for sale

Registered: 21 Nov 2008

Posts: 4,306

Status: Offline
Post #2
but i have an ok curve going

________________________________________

Ph2 Black GTI 6!

EX black 6 owner
But now a Black caged rallye owner

Hunting for Go faster bits!


SEARCH

click here
Posted 4th Jun 2012 at 21:44
Profile
fatlapit

Seasoned Pro

Location: STOCKSFIELD

Registered: 02 Nov 2010

Posts: 3,040

Status: Offline
Post #3
running a bit rich mate but not alot 12.0 is around perfect mate tbh

________________________________________


Posted 4th Jun 2012 at 21:53
Profile
hovis16

Seasoned Pro

Location: Reading/parts for sale

Registered: 21 Nov 2008

Posts: 4,306

Status: Offline
Post #4
so it burning a tad more fuel. how should the afr look then? even all the way or a tad peaky can member what standard bhp at the wheels are

________________________________________

Ph2 Black GTI 6!

EX black 6 owner
But now a Black caged rallye owner

Hunting for Go faster bits!


SEARCH

click here
Posted 4th Jun 2012 at 22:01
Profile
playboyb

Seasoned Pro

Location: Maidstone Son!

Registered: 27 Jun 2011

Posts: 1,464

Status: Offline
Post #5
I'll grab my printout in abit which is apparently perfect afr according to corten miller

________________________________________

306 1.8 xs moonstone blue-SOLD
306 gti6 supercharged china blue-SOLD
406 coupe D9 3.0 V6-SOLD

Posted 4th Jun 2012 at 22:15
Profile
playboyb

Seasoned Pro

Location: Maidstone Son!

Registered: 27 Jun 2011

Posts: 1,464

Status: Offline
Post #6


Found it

________________________________________

306 1.8 xs moonstone blue-SOLD
306 gti6 supercharged china blue-SOLD
406 coupe D9 3.0 V6-SOLD

Posted 4th Jun 2012 at 22:18
Profile
buzzbrightyear

Seasoned Pro

Location: hiding all receipts for car

Registered: 09 Jul 2008

Posts: 11,901

Status: Offline
Post #7
What would changing the rail do though?

________________________________________

andrew315rawson@live.co.uk
Moonstone phase 7 gti6
My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1
Posted 4th Jun 2012 at 22:18
Profile
hovis16

Seasoned Pro

Location: Reading/parts for sale

Registered: 21 Nov 2008

Posts: 4,306

Status: Offline
Post #8
fuel blockage ect.....seems my injector seals are fubar. so ive just changed my injectors over

________________________________________

Ph2 Black GTI 6!

EX black 6 owner
But now a Black caged rallye owner

Hunting for Go faster bits!


SEARCH

click here
Posted 4th Jun 2012 at 22:26
Profile
hovis16

Seasoned Pro

Location: Reading/parts for sale

Registered: 21 Nov 2008

Posts: 4,306

Status: Offline
Post #9
playboyb wrote:


Found it

that looks better hmmmmmm 4th gear too

________________________________________

Ph2 Black GTI 6!

EX black 6 owner
But now a Black caged rallye owner

Hunting for Go faster bits!


SEARCH

click here
Posted 4th Jun 2012 at 22:29
Profile
playboyb

Seasoned Pro

Location: Maidstone Son!

Registered: 27 Jun 2011

Posts: 1,464

Status: Offline
Post #10
Don't know what it means just been told its a good afr lol

________________________________________

306 1.8 xs moonstone blue-SOLD
306 gti6 supercharged china blue-SOLD
406 coupe D9 3.0 V6-SOLD

Posted 4th Jun 2012 at 22:32
Profile
stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

Status: Offline
Post #11
Yes, that's a nice steady increase on the AFR Sam. Yes

The car should ideally be run in 4th gear, not sure why they used 3rd on yours Hovis. Dunno

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 4th Jun 2012 at 22:43
Profile
hovis16

Seasoned Pro

Location: Reading/parts for sale

Registered: 21 Nov 2008

Posts: 4,306

Status: Offline
Post #12
stan_306gti6 wrote:
Yes, that's a nice steady increase on the AFR Sam. Yes

The car should ideally be run in 4th gear, not sure why they used 3rd on yours Hovis. Dunno


hmm so should i ignor the figures and sort my fuel issue out stan? just about to take her for a quick spin to see if changing the rail and injectors make a difference. also while your here what do the br,rh,at and etc mean at the bottom of the graph?

________________________________________

Ph2 Black GTI 6!

EX black 6 owner
But now a Black caged rallye owner

Hunting for Go faster bits!


SEARCH

click here
Posted 4th Jun 2012 at 22:50
Profile
fatlapit

Seasoned Pro

Location: STOCKSFIELD

Registered: 02 Nov 2010

Posts: 3,040

Status: Offline
Post #13
my turbo stayed between 11.8 and 12.3 whilst accelerating from idle so should be flatish tbh

________________________________________


Posted 4th Jun 2012 at 23:15
Profile
stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

Status: Offline
Post #14
I have an AFR gauge in the car, and whilst accelerating I'll see anything from 13.2 down to 12.7 depending on how hard the acceleration is.

I am not sure what the other abreviations mean at the bottom of the graph, but your fuelling doesn't look too bad to me.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 5th Jun 2012 at 08:04
Profile
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,839

Status: Offline
Post #15
why didnt they take it to the limiter?! theres another 800 rpm there at least!

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 5th Jun 2012 at 16:33
Profile
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,839

Status: Offline
Post #16
fatlapit wrote:
running a bit rich mate but not alot 12.0 is around perfect mate tbh


13-14 is leaner not richer.

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 5th Jun 2012 at 16:55
Profile
hovis16

Seasoned Pro

Location: Reading/parts for sale

Registered: 21 Nov 2008

Posts: 4,306

Status: Offline
Post #17
welshpug! wrote:
why didnt they take it to the limiter?! theres another 800 rpm there at least!

i told him that. but because i have xsi lockwood dials the redline is lower

________________________________________

Ph2 Black GTI 6!

EX black 6 owner
But now a Black caged rallye owner

Hunting for Go faster bits!


SEARCH

click here
Posted 5th Jun 2012 at 17:16
Profile
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,839

Status: Offline
Post #18
so this thread is worthless till you go and get a proper run done LOL

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 5th Jun 2012 at 17:41
Profile
stan_306gti6 Forum Admin

Location: Kent

Registered: 18 Jan 2004

Posts: 21,768

Status: Offline
Post #19
welshpug! wrote:
so this thread is worthless till you go and get a proper run done LOL


LOL

Pretty much, yeah.

________________________________________

"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone Love
Posted 5th Jun 2012 at 17:44
Profile
hovis16

Seasoned Pro

Location: Reading/parts for sale

Registered: 21 Nov 2008

Posts: 4,306

Status: Offline
Post #20
800rpm wont make up 10-12bhp tho? would it

________________________________________

Ph2 Black GTI 6!

EX black 6 owner
But now a Black caged rallye owner

Hunting for Go faster bits!


SEARCH

click here
Posted 5th Jun 2012 at 19:00
Profile
fatlapit

Seasoned Pro

Location: STOCKSFIELD

Registered: 02 Nov 2010

Posts: 3,040

Status: Offline
Post #21
No because peak power is at 6500

________________________________________


Posted 5th Jun 2012 at 19:02
Profile
welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

Posts: 25,839

Status: Offline
Post #22
but with the wrong cluster in you havent a clue what its revving to....

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 5th Jun 2012 at 19:26
Profile
fatlapit

Seasoned Pro

Location: STOCKSFIELD

Registered: 02 Nov 2010

Posts: 3,040

Status: Offline
Post #23
welshpug! wrote:
fatlapit wrote:
running a bit rich mate but not alot 12.0 is around perfect mate tbh


13-14 is leaner not richer.


oops my bad always get it the wrong way around. try a better induction system or a injector clean by asnu

________________________________________


Posted 5th Jun 2012 at 21:23
Profile
yanni

Regular

Location: Thessaloniki

Registered: 02 Nov 2006

Posts: 309

Status: Offline
Post #24
Allow me to cut in but what's the ideal reading on the AFR on a standard engine?
On tick-over at 2500 rpm and at 5000 rpm? I am stupid i know but i never understood what's the correct values.

________________________________________

Major stock holder of group P.S.A.
I live to pay and support the French industry.
Posted 5th Jun 2012 at 23:03
Profile
fatlapit

Seasoned Pro

Location: STOCKSFIELD

Registered: 02 Nov 2010

Posts: 3,040

Status: Offline
Post #25
As close to 12 as u can on any engine tbh mate its called "stoicg". its the perfect air fuel mixture to burn in the cylinders

________________________________________


Posted 5th Jun 2012 at 23:07
Profile
Home -> Forums -> Engines -> Air fuel ratio

Pages (2): [1] 2

All times are GMT. The time is now 09:06

The Peugeot GTi-6 & Rallye Owners Club - ©2024 all rights reserved.

Please Note: The views and opinions found herein are those of individuals, and not of The Peugeot 306 GTi-6 & Rallye Owners Club or any individuals involved.
No responsibility is taken or assumed for any comments or statements made on, or in relation to, this website. Please see our updated privacy policy.