not currently running a wideband but was trying to get one with a air/fuel guage before crimbo but had no luck!
HoocH
HoocH
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Have a look at this thread mate as it should help explain it. It is block 31 but heres the gumf:
When supplying 100% load (flooring it) it is safest to run a little rich rather than let the A/F mixture run lean.
Stoich is a ratio of fuel to air which is regarded as the optimum a/f ratio. It is generally accepted that this is 14.7. When we log group 31 the lamda probe (wideband sensor) is supplying a voltage output which is proportional to the burn't A/f mixture its sensing. generally 1v relates to stoich (14.7).
In its simplest form what ever values you log, simply multiply them by 14.7 to give you the true A/F ratio. Above 14.7 represents the mix going lean, below 14.7 represents the mixture going rich (safest).
Easier still is to compare the logs to this:- Above 1 = going lean
Below 1 = going rich (good)
Max power is produced when sensor reads between 0.8-0.9
The above is not the be all and end all its just a rough guide and generalisation as Stoich does not nescessarily mean its the most powerful ratio, but for novices like me it is good enough.
When off load, ratio can appear to run a little lean.
Remember that vagcom sampling rates need to be higher to get truely accurate results and i would always compare group 20 (knock control) to check quality of fuel and timing. (below 7 is good).
When supplying 100% load (flooring it) it is safest to run a little rich rather than let the A/F mixture run lean.
Stoich is a ratio of fuel to air which is regarded as the optimum a/f ratio. It is generally accepted that this is 14.7. When we log group 31 the lamda probe (wideband sensor) is supplying a voltage output which is proportional to the burn't A/f mixture its sensing. generally 1v relates to stoich (14.7).
In its simplest form what ever values you log, simply multiply them by 14.7 to give you the true A/F ratio. Above 14.7 represents the mix going lean, below 14.7 represents the mixture going rich (safest).
Easier still is to compare the logs to this:- Above 1 = going lean
Below 1 = going rich (good)
Max power is produced when sensor reads between 0.8-0.9
The above is not the be all and end all its just a rough guide and generalisation as Stoich does not nescessarily mean its the most powerful ratio, but for novices like me it is good enough.
When off load, ratio can appear to run a little lean.
Remember that vagcom sampling rates need to be higher to get truely accurate results and i would always compare group 20 (knock control) to check quality of fuel and timing. (below 7 is good).
not really.... widebands aren't that dear, and would make the difference between knowing your car's safe or not
yea, gonna be doin track days next year, so watch out!!
There isnt that much to see but here goes!
And a lil one of painted brakes
HoocH
There isnt that much to see but here goes!
And a lil one of painted brakes
HoocH
its still not totaly finished, still got forge actuator on order, catch tank to go on and im running the boost pipe different, thats just tempary at the mo!
HoocH
HoocH
f@ckin hell, how big is that filter ?? lovin that 
job looks good fella, engine bay looks nice and clean too![[B)]](/forums/styles/seatcupra/oldforumsmileys/shades.gif "Cool [B)]")
how did the relocation of the battery to the boot go? as easy as people have been saying?j or is it a mission like everything else on these cars?
job looks good fella, engine bay looks nice and clean too
how did the relocation of the battery to the boot go? as easy as people have been saying?j or is it a mission like everything else on these cars?
bit of a mission! cost about £150 just to move a fecking battery tho!! wernt happy!
Filter is quite big i guess
HoocH
Filter is quite big i guess
HoocH
who's the fella? you? looks like he's proper ****ed off?
manifold looks interesting jobby, filter is abit overkill i think! almost looks like a photoshop its so big!
good stuff though, look forward to seeing how it goes
and is your plate H17...? i cant believe you get away with that!
manifold looks interesting jobby, filter is abit overkill i think! almost looks like a photoshop its so big!
good stuff though, look forward to seeing how it goes
and is your plate H17...? i cant believe you get away with that!
Yea thats me, though id show my face!
Yea h17och, hence my username!!
Filter is from sccottyb, Hes a gd lad
HoocH
Yea h17och, hence my username!!
Filter is from sccottyb, Hes a gd lad
HoocH
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