Mike,

Those boost figures are from my own calibrated Budenberg gauge I use whilst setting the cars up. Jon's SPA does'nt seem far out.

It is'nt a boost spike as such, I've specifically mapped it to run 38 psi between 4500 and 6000rpm. Once over 6000 it runs a more normal 33psi.

I have mapped it this way as it gives the car a much needed midrange shove especially when changing gear and is only at the 38psi region for a short time and thus has no major problem with ACT's.

Once up to 3 figure speeds in 4th and 5th you only see the 38 psi for a brief couple of seconds when changing between 4th and 5th and then holds the 33psi.

ACT's were not brilliant and I was typically seeing 50 - 55DegC with 20DegC ambients, so I hope TOTB ends up being a cool day.

Never the less I have mapped jons with a 12 stage boost pot so he can turn it down if its running hot!

38/33 is on stage 12, stage 1 runs 30/24.