Category Archives: Turbocharger

Turbo Concepts First Drive

I got the engine back in and spent several hours hooking things back up again.  I was happy not to have any immediate leaks upon starting the car.

turbo_concepts_turbos_installed

I took it out for a drive to check how the wastegate settings were taking.  This was about what I was expecting, based on my efforts to set the preload I figured around 12-13 psi would be where it steadied out at.

Turbo Concepts Stage 1 Wastegate Pressure
Turbo Concepts Stage 1 Wastegate Pressure

Unfortunately on the way back I smelled gasoline and thought one of the injector O-rings was leaking, that appears to be the case, so I’ll need to look into correcting that problem before I can hook the N75 back up and take a log with a more appropriate boost profile.

Turbo Concepts Passenger Side

Today I finished installing the passenger side Turbo Concepts turbocharger.

turbo_concepts_passenger_side-1

A change from the last install, I’m using T-bolt clamps on the hoses at the compressor outlet.  I had one of the worm gear clamps slide off this coupler with my last setup and it took several hours to get the clamp back on – trying to avoid a repeat of that situation.

Turbo Concepts Turbocharger
Turbo Concepts Turbocharger

Turbo Concepts Driver Side

Today I installed (most of the way) the driver’s side Turbo Concepts turbocharger.  I have a few parts to tighten down still, but the oil and coolant lines are done, which are the most time consuming part.

Turbo Concepts Driver Side Turbocharger
Turbo Concepts Driver Side Turbocharger

I did have a few challenges to overcome.

One issue was the clearance between the compressor housing and the exhaust manifold on the driver’s side.  I clocked the turbo to get the notch in the housing aligned with the exhaust manifold, but was still finding them to be in contact.  After placing the Turbo Concepts turbo next to the BorgWarner K04 that I just removed I observed that the location of the indentation is different on the Turbo Concepts compressor housing.

I used a file to grind down the high point on the compressor housing so that I could see light between the exhaust manifold and compressor housing.

I also swapped out the fuel injectors, replacing the 72# EV14’s with a set of 60# injectors.