Hopefully they will figure out the problem. I hope I have got everything to not run into these issues when they tune my car.

Im glad we noticed that on the sheet so you could let tyler, and the rest of those guys look at it.


its Rob by the way

 

Just my 0.02! I second the look for the boost control setup. Either the WGA is messed up or you have problems with the hallman.

1. Good test would be to swap MBC with a known good one. It is easier to check that an MBC is running well than the WGA.

2. For the amount of boost you are running, I would go 2-3 full turns on the adjustable WGA after finding the normal position. The position where the little hole on the WGA leg hardly enters on the flapper. There was a video on FP website showing how to adjust the pre-load.

I personally have not seen a red performing (boost wise) but 5200 for 20 PSI seems to be a bit higher in RPMs.

Definitely, look in there and you will find a more responsive car.

 

I think your dyno will read the same because I was told that because of the use of a 10' line the dyno boost plotting is delayed... Mark has posted his dyno was off by about 2000 rpm for showing his Actual peak boost...so if that's the case I'd be peak boost at about 4600 RPM, which would be spot on for this altitude.

 

Thank you

 

We use about 10' of vac line to connect to the dyno Map sensor as well, we do not have 3,000 rpm of delay. At most 100-200 or so rpm delay compared to on-car map sensor.

 

NP!

I would like to see how the car behaves when you got the boost hitting earlier.

 

+1

My logs from the JDM map are not that far either from the dyno sensor that is about 10' away as well.

 

In defense of the delayed boost logging, before I starting dissecting the dyno graph I did mention on the ride home to my buddy that the boost comes on crazy quick and doesn't seem to match the dyno graph... I still think it would be worth my time to have things fully checked.

 

If the actual boost curve doesn't match the logged dyno boost curve I would suggest bringing it up to the shop so they can calibrate/replace their map sensor.

 

It has been brought up, he's actually the one that told me there is a delay in logging

 

oops

 

What did you do there?

-E

 

The boost is always delayed on this dyno.. For whatever reason it just it.. Once you get the AEM you will be able to post your log and then it will show when the real spool up is.. Don't sweat it if the car feels good then its probably fine..

But based on personally experience on that dyno the boost readings are very delayed..

Congrats on the build by the way i saw it at the track, it turned out very nice!!!

Everytime i have dynoed there the correction factor has always been around 1.222 or so and when i hit 635AWHP corrected it netted me about 134MPH trap..

Mark

 

Thank you much and I had found your post before in reference to that dyno being delayed on logging boost.

 

No i have been trying to get a perfect 12.0-12.2 AFR's... but it is actually between 11.7-12.0 right now depending on the gear.