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Dyno chart/Correct boost?

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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lexluther
Posts: 55
Joined: 21 March 2011
Year and Model: V70XC 2000
Location: SF Bay area

Dyno chart/Correct boost?

Post by lexluther »

Does anyone know if the chart below is showing I have correct boost pressure for 2000 XC LPT?

Land & speed Dynomite Dyno. Car ran in FWD mode, trans would downshift if fully accelerated below 3500 rpm so chart is full throttle after 3500rpm dyno reprogrammed to match. Could lack of airflow from dyno do this or its normal? I'm thinking of getting a PLX gauge and datalogging some street runs.

Legend:

Top black AFR
Blue TQ
Red HP
Lower drk green Boost

Notice the car is running lean?

13,500miles on odometer
new plugs
Forge bypass
OE new TCV
No codes on OB2 reader

Image
Last edited by matthew1 on 03 May 2011, 15:48, edited 1 time in total.
Reason: Fixed image with what I THINK is what you were after.

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