A/F 2 pts richer then comanded ????????

[Perdieu]

I'm a little lost on this one. I can't believe my VE's are that far off.
set up is
04 GTO with a 370ci iron block, ported 243's, .76 turbo, th400

I had the car running in May with the same setup raced at WSC car went 10.72 at 127 (4100lb) during an oil change we found brass. Pulled the motor and put new bearings in it.. starts up and drives great has great throttle response but it runs to rich now. I'm lost I just can't believe the VE need tweaked that much..

any advice would be welcome.. like I said the car runs great it's just richer then I would like down low..

[Redline Motorsports]

It is what it is! I would do a AutoVE tune and get the VE dialed in from scratch. Did you change the MAF transfer function?

Howard

[Perdieu]

It is what it is! I would do a AutoVE tune and get the VE dialed in from scratch. Did you change the MAF transfer function?

Howard

I just can see the VE table being correct with that low of numbers Look at map F if I paste and mutiply them it just don't look right.
didn't mess with any MAF stuff..
could soemthing in the injector set up be screwed up.. motron 60's

[Redline Motorsports]

I just can see the VE table being correct with that low of numbers Look at map F if I paste and mutiply them it just don't look right.
didn't mess with any MAF stuff..
could soemthing in the injector set up be screwed up.. motron 60's

If your IFR tables is incorrect you can also have wacked out #'s in the VE. You first need to get the injectors setup. Then fail the MAF and get the VE dialed in. Once done, re-enable the MAF and dial that in.

[Perdieu]

If your IFR tables is incorrect you can also have wacked out #'s in the VE. You first need to get the injectors setup. Then fail the MAF and get the VE dialed in. Once done, re-enable the MAF and dial that in.


I don't have a MAF :thumb_yello:
I'm going to play with the IFR table and see what it dose.
All I know is if it runs this damn good on a bad (rich) tune I can't wait to see what it dose leaned out :rockon:

[Perdieu]

here is what my IFR are now and what the spread sheet says they should be. I won't get to test the change till late tomorrow. Anyone have an idea if the change will lean it out any ?
whats in there now
7.484375
7.531250
7.570313
7.625000
7.671875
7.710938
7.765625
7.804688
7.843750
7.898438
7.937500
7.984375
8.023438
8.070313
8.109375
8.156250
8.203125


What redhardsupra .xls sheet calls for.

8.952454
9.005512
9.058260
9.110702
9.162844
9.214692
9.266249
9.317520
9.368512
9.419227
9.469670
9.519847
9.569760
9.619414
9.668813
9.717961
9.766862

[charcold-bowtie]

remember the ve is temp dependant. Are you COS3, if so do u have values for a0014

[Perdieu]

remember the ve is temp dependant. Are you COS3, if so do u have values for a0014

yes it's a COS3 I was trying to get it dailed in then add in the A0014 data

[charcold-bowtie]

Ok I just wondered. Obviously those values are supposed to help this kind of thing.