Search results

The governor in the pump more or less controls the fuel curve. Stock fuel curves are set to level out around 2700rpm-ish. If the governor is adjustable, you can adjust it to raise the fuel curve at higher rpm's. This, however, also controls the max-rpm limit. I adjusted mine up to get more fuel...

I can't see the bigger turbine being a restriction either. With a bigger turbine, the volume of exhaust gases doesn't change. The bigger turbine just redirects the exhaust gasses to impact the turbine wheel at a degree less than 90*, which allows for better flow but slower spool ability. If...

That MYHolset site says a required 4 inch downpipe probably because it's a 4in flange. I've seen a lot of HX40's with 3in flange outlet from factory. So why make them if it's a restriction. A lot of the HX40 applications too are on larger engines which flow a lot more exhaust gas than a 6.5L...

18 is pretty damn big. I wouldn't say it's a restriction at all. Mine was more a blanket statement comparing pipe size to turbines in general

Yeah Fellowtraveler, I guess it's sort of hard to judge since my downpipe I full 3 inch straight back with no bends and my crossover is like 2inch ID with the custom manifolds and crossover, So I'd be a totally different setup. Still, I'd say the biggest hurdle pressure wise is the turbine, not...

Just throwing this out here, but if a good hopped up DI motor can make 500hp with a 4inch exhaust, I don't really see why a 3 inch downpipe on a 6.5L would start to restrict things. I did find a good middle ground through. I found a 14cm T3 mount turbine housing that fits the HX40 76/64 turbine...

The ATT was designed to work within the limits of the OEM application from factory. You will be fine.

I'm slowly building my next turbo bit by bit. Helps save spending a lot of money at once. Also a route to go if you want to big custom design.

hahahahahaha the guy on the right is my reaction when somebody says they are going to do a Cummins swap

Was out having a bit of fun the other evening with my buddy. My friend is driving and I'm taking the video. Just thought you guys would enjoy some vids. That 35/40 is a lot louder from the outside than I realized.

I have a flip phone. Indestructible, but let's just say it isn't the most entertaining thing to take into the throne room. Computers are a lot nicer lol