I run a total advance of 29*-32* but it is the midrange between 4,600-5,800 RPM that that is the real issue since that is where the torque/load comes into play…Too lean and you get detonation…guaranteed…
I wouldn’t run Jim’s new headers very long without having a proper remap…His headers flow far better than the stock exhaust but everything needs to work together…
The R$D has been done take advantage of it…
^^^ great stuff Frank ^^^
Fully agree about tailoring everything together …
I’ll try and get a video of the af gauge on a pull posted as soon as I can …
See what you make of it ?
Obviously there’s more to be gained …
It’s great tho to get some feedback from peeps that really know their stuff .
At the moment ,for me It’s about keeping things safe …power optimization comes second …
Get it tuned then take a video, I don’t need to see video of engine failure…
I know first hand what will happen…
It will happen unless you tune…
Ok … you win !
When did CN get a dyno???
They use a local one, seems pretty good.
I certainly wouldn’t track it until its properly mapped. It’s probably OK for pootling around on the road but you don’t want to pootle in a 275bhp Exige!
The noise is certainly addictive, you need a nice snarl at 4.5krpm which then turns into a scream by the time you get to the limiter. 
I have some of my AFRs on my dynos from Sincs somewhere and they generally never exceed 12 over the entire range and mostly hover closer to 11.5, good to see you can still feel the difference on the bum dyno even without a remap though
Cheers ade … will drive it today and properly record the values …
Hi,
great to see all PROs here together. I would like to take this chance to discuss the AFR values of my Exige (measured on the road):
My car (manual throttle, engine setup from 240R):
In the picture:
Click: [color:#3333FF]AFR Exige 240R[/color]
As you can see the AFR is slightly lean if your comments are correct.
What is your opinion?
bockt - The ITG induction is probably the reason why your a touch lean otherwise your setup of very similar to a standard 240R setup. A better IC isn’t going to impact AFR it will just prevent heat soak.
Video sent Ade …
you have a PM, share the video?
It sounds STUNNING!! 
Don’t like my Wolvo accent !!!
It still looks a little lean when you first nail it… The rpm range between 4,600 and 5,800 is still too lean from what I can “hear”…
The drop into the low 11’s is most likely due to the knock sensor dumping fuel to quite detonation…You should have 0 knock
I would want A/F not to exceed 12.2 under load, tip in should drop into the high 11’s… Remember its cold outside come summertime things will be bad with those ratios…
Was trying to dig out my RR graphs…my car runs more lean than that with a custom sincs tune!
Will be getting mine mapped again in the not too distant future anyway for the even smaller pulley
Fuel octaine…?
super unleaded (97) as a minimum…but try to get shell vpower when i can (99).
Will be getting it mapped again shortly anyway…
Mine has never been mapped any leaner than 12 except the cam change which always gives an odd spike.