Non typical dump results (slips attached)

Mike T

Well-Known Member
#3
Dynomax/Walker stock location. Absolutely love how quiet it is so I guess opening the dump will become a part of the routine.
17 on the first 2 and unknown on the 3rd (forgot to hit the record button).
Salvaged the last few seconds of the log but it revealed very little info.
 

Mike T

Well-Known Member
#9
Stayed in it to insure a full pass, got it slowed down enough to see PL not recording. If you save the PL quick enough it will bring back a few seconds past. Sadly comparing other logs I was .5 second too late.

20180808_211124.jpg
 

Mike T

Well-Known Member
#15
About 8 months ago was the first two passes on the car. On 93 octane leaving at zero pounds and maxing at 12 pounds the car was slow but still picked up 23-24 mph from the 1/8 so I knew something was there.
 

Pronto

You're very kind. Some day it will get you killed.
#16
Think you need to revisit that. That's a huge gain for sure. Get a good log this time. I'm sure the tune will need tweaking if it was tuned for it being that corked.
 

Mike T

Well-Known Member
#17
Think you need to revisit that. That's a huge gain for sure. Get a good log this time. I'm sure the tune will need tweaking if it was tuned for it being that corked.
Was not totally in the dark as to what could be. Had a decent idea of possible fuel curve problems in advance to opening it up and timing was very conservative.
 

Mike T

Well-Known Member
#18
Think you need to revisit that. That's a huge gain for sure. Get a good log this time. I'm sure the tune will need tweaking if it was tuned for it being that corked.
Pronto I want to back up and agree with you 100 percent. There is no way the tune was ideal.

Now to explain my rather generic response from above. A few years ago we found that the car picked up 2-3 pounds and 50+ hp on the dyno uncapped. The same basic combo has been updated a bit and will turn more rpm now so I anticipated the choke to be even greater. When uncapping I estimated maybe as much as seven pounds to be safe.

The prior pass was 17 psi and the a/f favored the rich side as the run progressed. I felt the tune could support up to 24 psi based on fueling trends at various boost levels that were observed on the street.