Boost and EGT's

[minytrker]

I finally got my gauges installed so I can play wiht the tune some more. From 30mph wot up to 80mph I had 25psi boost and right at the end my egt's peaked at 1400 so I let out. What do I need to do to either get more boost or how else can I lower the egts? I was told to stay under 1300. This is on a 2003 crew cab dually all stock except tune and straight piped.

[lakingslayer]

You can go up to 32psi of boost with the stock charger and still get a benefit from it. As far as EGT's go you don't want to go over 1400 deg for an extended period of time. A few seconds at 1400deg shouldn't hurt anything.

Use tables B2204 thru B2209. You only need to mess with the ones that are for your altitude based on your Baro readings. The number in the table minus the Baro PID reading is what your actual boost is. If you want 32psi boost and are at sea level which is approx. 14.6 baro then you'd put in 46.6 in the table.

[minytrker]

I dont have those tables on my LB7.

[lakingslayer]

Sorry. B0504 and B0505 for a '04 LB7.

[minytrker]

Those tables have numbers in the 99 and up to the 200s. So subtract my baro pid from this and that should be my boost?

[lakingslayer]

You need to put the tables in imperial units instead of metric units. Then it will make more sense when we talk psi. The Baro and boost tables should be the same units when doing this calculation.