[keithmac]

I got 1/2 way through making the jet adapters and figured they`d be too restictive in front of the 9b`s inlet,.

I went to plan B which was injecting after the MAF using a T in the bubble with 2 0.3mm jets (90cc/min to each turbo). I used 70% meth solution. This made little difference to the 6500 rpm WOT boost reading on the datalogger.

I then went to a 1mm jet each side of the T (500cc/min to each turbo) as these were what I had lying around and probably got a 1psi increase in boost at 6500rpm WOT. I deemed this of too little benefit to warrant any turbo blade pitting so removed the pre turbo jets.

Just after this I got a miracle buy on Ebay, 2 13G`s for £100 (approx $200), I`ve fitted the front and planning to do the back one soon. If these get close to 18psi at redline I`ll be happy enough at that for a while.

I think if you could make a system up to spray into the compressor point blank without restricting air flow you would see better gains, but the 9b intake is that small it would be difficult.