More power to ya… literally . Unfortunately, in California, unless you live near Newport Beach, 91 pump is our highest grade conveniently accessible. Not sure what that translates to UK fuel grade. A Lotus Exige engine builder advised I could go as high as 12:1 on 91, but an engine rebuild was only $5k at the time. I would’ve went for it had I kept the car. Mid 11’s is highest I would consider for a California driven 355. I think 12 is ok for 93 pump.
Yep, that's why I would go for the full noise Matsu engine, which has cams, timing, fueling etc to get that 500Hp
Do we have any any updates on this TODA "Take" spec build? Been almost 5 + years since the OP made his original post.. Anyone know if the owner is still "living the dream..?"
So I have been doing some thinking.. We are all aware of the power differences between the 5.2 and 2.7 cars. From factory the 2.7 cars have were about 5-10% more power than the 5.2 cars.. ( see video @ 20min onwars) The Air intake on the 5.2 (single MAF) results in a staggering 58% reduction Intake airflow than the 2.7.(see video) Plus the 5.2 car has smaller injectors than the 2.7 car.. 2.7 (267.0 cc/min) vs 5.2 (240.7 cc/min) So why am I bringing this up..? TODA claims its "UME" spec kit can be used with the OEM injectors and ECU. This might be do-able with the 2.7 injectors, but when you crunch the numbers with the OEM 5.2 injectors ( 3.4bar, 85% DC) it doesn't seem feasible.?! And since you can't get bigger OEM injectors for the 5.2 car, this means that even if you wanted to the "UME" spec offering will not work in your vehicle.?! So does anyone if the advertised TODA HP figures were derived via testing in a in a 5.2 or 2.7 engine.? (ie- what air intake/injectors did they use..?)
That says they're stock replacements, maybe rated at a different pressure? But yeah, larger injectors should do the trick if the stock 5.2s are marginal. Maybe 360 injectors? They look the same, not sure what they're rated at.
My understanding is that larger OEM injectors for the F355 do not exist.. You can get larger aftermarket injectors but they wont work with the OEM ECU. Is this statement correct..? So what is the normal operating fuel pressure for a F355? And are the below flow rates for the OEM injectors measured at this pressure ..? 2.7 = (267.0 cc/min) 5.2 = (240.7 cc/min) And do both the 2.7 and 5.2 cars run the same baseline fuel pressure..?