UCON Flex Advanced Engine Management System

1000 ft, at 65 degrees ambient I might get as much as 6.5 max

 

Planning on ordering the UCON next week.
What else should I plan on replacing while I have the truck apart? I have the 'Stealth' 2.85 pulley - do I need to downsize my belt?
Any gaskets I should have on hand?

 

I put new valve cover gaskets on when I did the cam gears. Also intake plenum gasket if yours has been on for a long time. It's also a great time to change the plugs since you will have the sc off for the cam gears. A lot of people run one step colder plugs than what the sc comes with...not sure the number off the top of my head.

 

And the S/C plugs are colder than OEM. So two steps colder?

 

9-9.5 psi with the 2.825 with open / cat free exhaust. That's at 50F and ~1400ft elevation. Stock belt length but Gatorback design. I get bet slip on a rare occasion still buts its RARE. My manual boost gauge reads -1->-0.5 with the engine off, so it's probably undershooting my actual numbers by half a psi or so. I wanna see 10 psi, waiting for a colder day.

 

I forgot about the gauge potentially being off by a margine. Good point.

 

I know everything is relative but these boost numbers are all over

 

Posting this for general info.

It’s the part numbers for the bearings that go in the pulleys.

 

Good post.

 

I agree. Seems we have some gauge, elevation, bypass, and or belt tension issues. Lol. A calibrated gauge is always a good reference to compare to your vehicle's. I.E. dyno.

 

I would guess that since these systems are relatively low pressure compared to turbocharged systems, that the accuracy of the typical gauge might not be all that good.

Also, everything that Torspd said.

 

Side note: in 80F weather around sea level, just swapping to the AFE intake yields 7psi to my 6-6.5psi previously.

 

For those with the factory intake, removing the charcoal filter will also yield similar results.

 

Need to buy a scanner with freeze frame option. Any recommendations ?

 

So I just pulled all my plugs for a compression test. How do you like that blackness? Getting low rpm, low vacuum high load pinging in top gear but otherwise drives fine. Rough idle lately, and mileage has been total crap. Currently doing some remote troubleshooting with the UCON folks.

 

Does anyone have the part number for the recommended spark plugs? I didn't do the SC install myself, so I don't have the original parts list.

 

$9 Denso IKH22 Iridium Power Spark Plug, (Pack of 1)

Denso IKH22. URD uses

$11 IKH24 Denso 5346 Spark Plug

IKH24. I use VKH22.

 

Why the VKH Finnj?

 

Thanks.

 

I run with CNG, these won’t wear so fast because of the Platinum chip. Otherwise same than IKHs.