djempirE55

First...a plug for the crew at Eurocharged Canada, namely Slav and Randy. Always great work and service.
Caveat on the numbers: two runs were performed before noticing the Dyno was triggering an error with no results. It was resolved after the third pass. Here are upgrades with SAE and STD numbers.

• EC Long Tube Headers
• 82mm TB
• 77mm SC pulley
• EC Tune
• Belt Wrap
• K&N filters
• PLM Heat exchanger
• Bosch 010 pump
• Cats and resonator delete

nanayaw6

How was the AFR reading obtained?
Looks lean.

djempirE55

AFR was from the tailpipe sniffer. Slav said the numbers are bang on. AFR #'s are usually 0.3-0.6 richer at the motor.

DVC

+1

Read at the tail or not, that's an aggressive tune. Especially considering no cats.

Do you know what your IAT was for that pull?

JoeJErnst

Our mods are almost identical! I've got a Lawshee tune in mine and I'm going for a dyno session on Wednesday. Should be an interesting comparison.

Congrats on cracking the 500hp mark!

djempirE55

Unfortunately I have no idea what my IAT was at the time. I approached EC with the same concern and he said there is no issues with my AFR's. I'm wondering if the stock injectors or the introduction of unmetered air have anything to do with this?

djempirE55

Thanks man! Looking forward to your results also.

djempirE55

What's the best solution to a lean afr?

DVC

I'd send the graph to Jerry and ask if he'd command a safer AFR in your tune file.

djempirE55

Sent to the boys @ EC. Thanks for the tip.

J J

Stock injectors? Where is the limit before needing 550s?