I put the scanner on my car the other day to check out how the new engine runs...Well, it runs nasty rich at idle. I haven't done any other testing or tuning yet, one thing at a time...Anyway, are a few of my readings at idle, warmed up...

INT 98
BLM 108
IAC 23
TPS .78
O2 Xcounts 5-4
Base PW 2.0
MAP 60
O2 mv 824

The thing that I find the most curious is the MAP reading. It seems that it shows me to have very little vacuum at idle. The cam I am running is mildly aggressive in my opinion and I expected more vacuum. I will hook up a vacuum guage and see what it shows tomorrow. What do you guys and gals think of this? I know I am very rich, you should see the plugs! What do some of you with more aggressive cams or similar cams see for MAP values at idle? Thanks in advance...

224/236 @.050"
.525/.555
113 LSA
Comp blower cam, no I don't have the blower yet!!

 

Big cam, stock PROM?

Mismatch

Edit:

A cam like that, I'd expect to see maybe 12-14in/hg at idle..max.

 

Its not exactly a stock PROM. I had done lots of tuning on the old version of the engine. It had a TPIS ZZ9 cam with about 11:1 CR. Now the heads and intake are ported, oh yeah, I put on the HSR! and completely redid the valvetrain. I never was finished with the tune on the PROM and it doesn't really matter now, its a totally different animal.

Thanks for the response...I thought I would get more vacuum though...

Anyone know a simple conversion of Kpa to vacuum in in/Hg or vis versa???