Well here are my thoughts also. Note that I have fitted the plenum and the strut bar.
1. Without the plenum Car becomes piggy reach, due to the high volume injectors. I personally high suggest to proceed with the fitting. Car is quite smooth.
2. Out of the box, with the conservative map that Unichip provides, without any fine tuning car made 356WHP@6500RPM and 336ftlb@4900RPM @ 7psi. Refer also to the dyno sheet.
3. High flow cats are essential. I reached temps of 800C, at WOT. On national road I could not run the car above 180km, on sixth gear, without temp alarm.
4. High flow exhaust system is recommended by APS on their website. Especially for EU Vehicles. That's because the quality of Gas beeing used is far better than the one can be found in US. I personally use 100octane, gas, in order to eliminate knocking problems if any.
5. I am now on the building process of the motor. When I open the motor I found scratches on one crank pin bearing and one main. I strongly believe that high temp of oil decreased LO viscosity dramatically leading to near elimination of oil film. So take care of this parameter also. A LO cooler is not a bad idea. Carbon residues found also on top of pistons.
6. EGT, LO temp, and BOOST are the trhee gauges that I would highly recommend. The compression pressure of our motors is quite high for FI.
All theese derived from my personnal experience and the problems I have encountered during FI usage. Also Note that before I open the motor I did made a hard long 1000km test ride with my car, trying to see where are limits of the motor. Fortunately nothing happened apart from those already mentioned above. As I said I will be back when the built will be finished. My goal is 500WHP, which is quite safe and capable with the kit.
