Custom Code

[cmdrfire]

?
cmdrfire - care to explain the issue?

I always understood that running lean or too lean was bad for an engine.

"As the engine runs leaner or if there is less time for the fuel to burn in the combustion chamber, there is a tendency for incomplete combustion"

IIRC lean burn also results in hotter cylinder temps which can damage cylinders/pistons. Some engines (like AXX) have deliberate lean-burn modes when cruising, but the preference is still to run stoichiometric or rich.

[Janner_Sy]

?
cmdrfire - care to explain the issue?

Being lean can result in more power but your on a fine line with the AFR.  it could mean less fuel is being pumped into the combustion chamber.  less fuel = extra heat in the engine = things bending and melting

id have walked out the door if someone had said its better to run lean than to run rich.

[richardgti]

sorry all ! when i meant lean i meant to say rich. 
grovel grovel.

i was told the engine was using approx. 15% more fuel than it needs too and the timing was slightly all over the place under full load. however the chap doing the logging wasn't too concerned with that and said the turbo pressure was all fine. he certainly didn't have too much concern over the map - he did say however that the timing could be better but the engine has the ability to sort itself out with that.

[Poverty]

I can think of 5 people all with similar stories to Boxxer.

There's a much bigger picture here that 90% of people won't know about with regard to the forums.

Read into that what you like.

Exactly it's all behind the scenes stuff because people wont or can't go posting it all over the net for obvious reasons. It's crazy the amount of people who have lost thousands of pounds others tens of thousands for cars that don't work

[Poverty]

sorry all ! when i meant lean i meant to say rich. 
grovel grovel.

i was told the engine was using approx. 15% more fuel than it needs too and the timing was slightly all over the place under full load. however the chap doing the logging wasn't too concerned with that and said the turbo pressure was all fine. he certainly didn't have too much concern over the map - he did say however that the timing could be better but the engine has the ability to sort itself out with that.

Timing which is all over the place nd letting the ecu sort the rest. Signs of a sh*t map. Overfuelling by 15% again more signs of a sh*t map that's alot of extra fuel. Bye bye catalysor.

[Hurdy]

Custom Code maps aren't bad - just not as strong as REVO or GIAC. My ED30 was smoother on CC, but much stronger on REVO.

As for JBS -  I've had work done through them, which on the whole I was satisfied with at the time.

Times change though, as do the people who worked there!

I could give a bigger insight as to how things have changed at JBS, but I won't!!!!!

[richardgti]

So would the recommendation then be to have it set back to factory standard until I can afford to have the map done elsewhere?
Cars done 28k, 12 of that on the CC map!

[Hurdy]

CC map should be fine. If it is like most stage 1 maps it will be stronger and smoother than stock in delivery - just not as strong as some other maps.

[candy turbo]

CC map should be fine. If it is like most stage 1 maps it will be stronger and smoother than stock in delivery - just not as strong as some other maps.

CC might not be as strong but much more usable on a front wheel drive car

[Poverty]

So would the recommendation then be to have it set back to factory standard until I can afford to have the map done elsewhere?
Cars done 28k, 12 of that on the CC map!

Go back and tell them to adjust the map, say the timing pull is unacceptable. Idly you want no more than minus 3 degrees of pull

CC map should be fine. If it is like most stage 1 maps it will be stronger and smoother than stock in delivery - just not as strong as some other maps.

CC might not be as strong but much more usable on a front wheel drive car

Thats going back to the days of saying 200hp is the limit for fwd cars. Or saying stock power is alot more useable than cc remap power.

Just learn how to modulate with your right foot. 30mph 3rd gear never a wheelspin issue for me in a straight line unless it was pissing down with rain or icy.

[RedRobin]

Just learn how to modulate with your right foot. 30mph 3rd gear never a wheelspin issue for me in a straight line unless it was pissing down with rain or icy.

....Hear! Hear!  - Too many folks don't seem to be able to grasp that.

[boxxer1973]

boxxer1973 - you don't say what you had done to your car? You say you had 6k of work done  - that's slightly more than a stage 1 remap!

Had a hybrid turbo tubular manifold injectors done on my mk4 manifold was useless kept returning it for cracking each time I was told it was something else turbo blew after 8000 mile/1yr 1 day out of warranty wouldn't warranty or give anything toward. Finally after a thread on SCN got my money back for manifold after a few had the same problem.

To be fair mike and leigh were top lads and am friends with them still. Just certain others

CC maps are fine there are many more CC dealers out there that will take the time with you, and not make excuses when things go wrong

[candy turbo]

Just learn how to modulate with your right foot. 30mph 3rd gear never a wheelspin issue for me in a straight line unless it was pissing down with rain or icy.

....Hear! Hear!  - Too many folks don't seem to be able to grasp that.

modulating your right foot and useability is same sort of thing

[Poverty]

Just learn how to modulate with your right foot. 30mph 3rd gear never a wheelspin issue for me in a straight line unless it was pissing down with rain or icy.

....Hear! Hear!  - Too many folks don't seem to be able to grasp that.

modulating your right foot and useability is same sort of thing

So lewis hamiltion races his F1 car with 100% throttle throughout every bend and on grid start off!?

[Poverty]

http://www.tt-forum.co.uk/forum/viewtopic.php?f=2&t=149259&hilit=jbs+big+turbo&start=60

makes you sick