what c15 do i have??

I agree. Going twins to single is a step backwards in performance IMO.

Ever have a chance to see CAT's next gen turbochargers? They use the front 3 cylinders and rear 3 cylinders seperately to feed the turbine. One set of 3 feeds a small scroll, the other 3 feed the large scroll. Small scroll gives it quick spool up and the large scroll keeps the boost up once everything is spinning. Basically like the Acert twins in one turbo.

 

While looking through the pics, I see the exhaust flex pipe is just sitting on the turbo.

A bolt for a dipstick?

 

Probably more convenient depending on which side the driver prefers to check on.

If the twins work good, I’d leave them.

I like them on my BXS.

 

No haven't seen these yet. Sounds interesting. Twins are nice. Makes for a longer power curve. I'd definitely leave that engine alone if power is good and runs well.

 

The ACERT twins run very hot, thus the need to have the pre-cooler.

They’re making a lot of boost. More pressure, more heat.

Single turbo trucks, I can put my hand on the pipe from the turbo to the CAC while checking for leaks.

The twins run about 500°f of pressurized air to the pre-cooler, cooled to about 190°f or so and cooled further through the CAC.

I’ve touched the pipe by mistake in between the turbo and the pre-cooler and learned what’s a no no to do. That is hot.

My BSX makes about 40 psi of boost at 1,000 rpms. Over 50 after 1,300 rpms.

A nice longer power band like Swaan says