chituntang
10-03-2011, 06:32 PM
S13 SR20DET
Stock bottom
HKS step 1 256 cam
Stock head otherwise
S14 T28 BB @ 8psi
3in exhaust
FMIC
PBM T28 intake
Z32 MAF
Greddy Filter
Stock injector
255 fuel pump
Got a LM-2, hook it up and got some data. I am doing a comparison of 2 tune: NEO vs rom tune by Emance. Anyways, this is a highway pull in 3rd gear...
https://byfiles.storage.live.com/y1p87kfz0AU3MTMbaZ6TDnoPXZZD0dmktSRPVW0vtltCGKDtKj 5nAtJPhtFXSZxzoNGi2dKp-n3Q4Y/Tune.png?psid=1
So base on the log (red top is THR, black is rpm, purple is A/F; 4k to 6.5k rpm pull):
4k to 5k - 1 a/f too lean
5k to 6k - .5 a/f too lean
Am I reading this right? Is there something wrong? What should concern me? Should the a/f take its time (like the graph shown) to drop to the appropriate range?
Stock bottom
HKS step 1 256 cam
Stock head otherwise
S14 T28 BB @ 8psi
3in exhaust
FMIC
PBM T28 intake
Z32 MAF
Greddy Filter
Stock injector
255 fuel pump
Got a LM-2, hook it up and got some data. I am doing a comparison of 2 tune: NEO vs rom tune by Emance. Anyways, this is a highway pull in 3rd gear...
https://byfiles.storage.live.com/y1p87kfz0AU3MTMbaZ6TDnoPXZZD0dmktSRPVW0vtltCGKDtKj 5nAtJPhtFXSZxzoNGi2dKp-n3Q4Y/Tune.png?psid=1
So base on the log (red top is THR, black is rpm, purple is A/F; 4k to 6.5k rpm pull):
4k to 5k - 1 a/f too lean
5k to 6k - .5 a/f too lean
Am I reading this right? Is there something wrong? What should concern me? Should the a/f take its time (like the graph shown) to drop to the appropriate range?