I never said the 6 port isn't a better design.. but for the overwhelming majority of people buying these cars, having the 2port high compression motor will be more beneficial then the 6port low compression motor. The 2port varient will always make better power unless A) you don't care about...
No, the whole reason for lower compression is to allow for shitty gas.. tune both cars on 93 pump or better, the A90 will always make more power.
People who are serious about making power aren't running 10:1 compression.
Not all maps are created equal.. No matter the platform, your maps are only as good as the guy doing the tuning.
At the very least, send your tuner a log for those hot days to make sure everything looks good.
That's not to say the 2port cannot make the same power because it can. The kit I'm selling is capable of almost 1,000whp. So if you're wanting a reliable 700-900 then this is the way to go - comparing to something like Pure800/850.
If you're wanting more AND plan on racing then 6port is where...
I've seen a couple overlays floating around.. peak power is a little better with 6port however when you're aiming for 1,000+whp there is a massive drop-off above 5,500rpm with the two port. I'm also having the head fully built with oversized valves so the hope is it'll further improve the upper...
Not sure why people are trying to revive the dead.. As far as I've seen, he's not sold the first one, for our cars, and they've been on backorder for over a year..
Go on the bmw forms if you wanna research this guy and his product.
Would anyone be interested in a top mount kit? Will come complete with efr9180, capable of 950whp. Will come with pre-mounted oem wastegate and everything needed to make it work.
I moving from 2 port to 6 port head and will have to start from scratch.
I purchased this kit about 6 months...
Visconti uses the already taxed OEM fuel line so it's limited in capacity.
Whereas, this setup has it's own dedicated line running to the engine bay so the potential is far greater if you plan on higher HP.
I currently have a motor being built.. when it comes in I'll have an extra motor to potentially sell.
It'll be a low mileage motor (<15k miles) that would include a 2-Port manifold (installed) as well as a 6-Port manifold if someone chose to upgrade.
I could also have this one sent out for a...
I have a used 6-port head available for anyone interested. ($750)
I picked one up with intentions of doing port work, valves and springs as well as upgrading from the OEM 2 port however I just purchased an entire motor so now I no longer need this one.