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Unique Autosports to the rescue!

wilch

By wilch,
in Engines & Forced Induction

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wilch Grand Master

wilch

Posted
Posted

Ok, now I've recently been having a few problems with my car since I had a PowerFC installed.

The short story is, got the PFC, had it tuned. Had issues with the stock fuel pump. There was no pressure. After this I had the fuel pump replaced with a high flow walbro item, and a SARD fpr installed (incorrectly). Didn't make as much power as I wanted it to.

After this, the car was again retuned and didn't make much more power. There was now lots of fuel down low, but nothing up top. ie, AFR's were 12:1, injectors close to 100% duty cycle, and boost was only at 11psi. :D

Car was good to drive still though. Felt better than before I had the PFC. I just wanted to up the boost. But couldn't because of the fuel issues.

I wasn't really happy. My tuner then suggested that my injectors were screwed, and that I needed new ones...This didn't sit right with me, so I decided to go to UAS get some power runs done and get a second opinion.

Today I took my car to Unique Autosports to have them check it out and give me a second opinion. Firstly, the car only made 188rwkW on their dyno (made 200rwkW on the other). Secondly the fuel pressure regulator wasn't installed properly and wasn't doing jack all. That is why the injectors had to be run high, and why the car was leaning out (running out of fuel).

Ben from Unique Autosports fixed it up. He made the fpr work properly, which saw 10:1 ratio's at 11psi.

He then upped the boost to 13psi, and retuned the car. Now the car is making 200.5rwkW, the injectors are only at 76% and the engine knock value is down to 22 max, when it was hitting 34 frequently and occasionally spiking to 60.

Three cheers for Ben from UAS.

dynoPowerFC_afr_web.jpg

dynoPowerFC_psi_web.jpg

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https://www.sau.com.au/forums/topic/77406-unique-autosports-to-the-rescue/
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