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I believe they upgrade the piston, use coatings to decrease the friction and perhaps open up some restrictive areas, but I'm not sure.

Opening up the restrictive passages is not a solution for mid range where hpfp volume is limited due to the RPM of the pump rather than the size of the passages in the pump and rail. Fixing mid...

Also stock HPFP is sufficient for petroleum based fuels.

I believe you need to upgrade your HPFP to have a larger piston and consequently get it to flow more.

Oh man, you are making too much power, and there is no easy solution for that.

Removing the AR from the front of the radiator could help already as the spot in the radiator behind the current AR would receive cold air instead of hot air increasing the cooling capacity.

I'm afraid you are correct. I guess there is no demand for these upgrades and consequently no one can log a product that they don't have?

What was the original problem if any? Did you have symptoms related to either coolant or oil temps?

Sorry about the typing mistakes... Is your fuel system maxed at low revs currently when using e85 without meth? I.e. do you have high AFRs low down with no way to increase fueling? Or not?

Are you tapping the fuel system at low revs?

Modern engines with direct injection are designed to be run at 240-260. If you are at 280 constantly you need to run a bigger core in the wheel well to enable the thermostat governed temps. OC in...

In theory yes, but in practice it is impossible to develop a lot of electric car models for which there is no real market anyways. Currently Bmw has only one combustion model that meets the 2020...

The fleet average to be achieved by new cars is 130 grams of CO2 per kilometre (g/km) by 2015 and 95g/km by 2020. The EU fleet average target of 130g CO2 per km will be phased in between 2012 and...

None of these cars are made in EU and have to meet the EU manufacturer fleet requirements.

How are the logs different from the last time when you had a bit more power and a bit less tq? AFRs? Trims? LPFP / HPFP voltages / pressures?

Did you see the trims? Could OP post the logs for seeing how the fueling works?

That's good news. Single is a more straight forward option.

Sorry, you are correct. I believe you detached the stock pump whereas I'd like to keep the stock pump fittings untouched and still fit Walbro in there. What I meant was that it might not fit that...

Sounds even better. Fitting Walbro to the bucket next to the stock pump is tight as well and might not fit. One big pump should fit better than two pumps.

For 8-900whp you need parallel LPFP setup.

There is no reason for not running 725whp daily, but its always nice to get a real life confirmation that it has been done.

Listen to the expert and go with upgraded CHRA or other turbos such as 2 x GTX or a single.

At least he knows what should be done. Doing it would be in everyone's best interest. So, Jake, let's encourage him and hope for the best.

I like your approach. Dynoing the pump and long term testing is needed to ensure the longevity. It is good to see that you address the springs in addition to the HPFP passages.

The cost of doing something like this is quite high, so the price is right. Let's see the demand.