Engine Drivetrain 1st Gen Cooper S Helix Wildebeest TurboKompressor Update

It has been a while since I posted any updates on the Helix Wildebeest however a lot has happened. I have found that the electric oil scavenge pump for the rear mounted turbo is unreliable. During a high speed run, the pump failed. As a result the excess oil being pumped to the turbo pushed past the turbo seals and exited out the exhaust. Engine Oil + Hot Exhaust = FIREBALL. Another unfortunate side effect is engine oil starvation. My cyl1 rod bearing had spun.
Since then I removed the engine and took it to my engine machine shop called Mardinly located in Broomall PA. Paul from Mardinly did a great job with regular updates, pictures during the process, informing me of any issues, and offering corrections for them. To top it off, the whole process took only 1 week. Below are some pictures of the machining and assembly process.
The head was decked, given a new valve job, new seals, and new guides.

The crank was ground and polished to remove any blemishes.

I chose to go with Weisco .020 oversized pistons, Pauter forged rods, and ARP studs. (Side Note: The Pauter rods had to be machined a few thousandths to clear the Weisco pistons).

I had chosen to relocate the turbo to a conventional location next to head. I also replaced the failed 60-1 turbo with a new GT2871R.

The Beest is hungry to get going NOM NOM NOM.

I wish I could say that everything was perfect after all of this, but it was not the case.

The turbo wastegate was not flowing enough and causing over-boosting of 28psi peak. I had to port the wastegate.

In this picture you can see the bell mouth porting I did on the wastegate port.

I also removed the divider on the downpipe. This will allow the wastegate air to exit through its own port as well as the primary tube.

I bell mouthed the sections of the downpipe tubes that did not mate with the turbo flange for good measure.

As a result I now build and hold a solid 21psi of boost @ WOT and the car goes like a Raped Ape. I’ll be hitting the dyno soon to dial in the air/fuel ratios. For now they are around 10.9:1. I’ll update with the final numbers. Soon after that I will be doing an E85 tune with 28-30psi of boost.

 

I have a brand new liquid/Air intercooler design that we are going to try on the car shortly. That alone will yeild good HP increases and consistancy over the stock intercooler presently on the car.

After that I'll be looking into a big valve head and cam package. Currently I have a slightly ported JCW head with a stock cam. To me the car feels very close to 300whp and high 12sec 1/4mi.

 

Idk he didn't like my kickass Obama t-shirt. Lol jk. I know all about the Jesus head. I am just lacking the budget right now.

 

NEWS UPDATE 300whp 245wtq

 

It's on my phone now. When I get home ill post it from my laptop.

 

As promised. The lower curve is the first pull. The car didn't make as much boost as it did on the street so we bumped it up (from 19psi to 21psi). We also leaned it out from very rich 10:1 to the now 12:1 AFR.

 

Well I am Anthony, but I will say that this car has a ton of TQ and pulls hard to redline. Also I have the turbo wastegate set to throttle position. The turbo doesn't reall kick in until 4/5ths.