Yes, afrs look decent. Did they also measure timing, boost, etc..

 

FVD Catless exhaust and Proto flash ms109 file. We did 3 pulls. Max power was around 480 and 540 TQ. Their dyno reads 25% lower than crank according to the shop staff. I just sent todd an email a few minutes ago, see what he says.

 

They only had a wideband sensor sticked into the tailpipe. No other measurement were avaliable.

 

Abby

Yours number look good for a tune and exhaust.

My numbers were Softronic tune/AP Exhaust/BMC drop in filter and 93 Oct.

It was hot day back in July

Sport Mode
Max Power 403.7HP@5850 and Max Torque 400.2(ft-lbs)@4250


Standard Mode
Max Power 398.6HP@5850 and Max Torque 422.6(ft-lbs)@3600

 

So that puts you over 600lb/ft torque????? Man that race file is something!!! Although I think Todd told me the pump gas file with sport mode also comes close to 600lb/ft iirc. Mmmmmmmm....torque!

 

Thanks guys!

Bogg,
You should try the race file for just once and you will know what mean. Race gas give you that neck snapping force can not be found on pump gas file.

 

The power starts to drop off around 5700 rpm. This is likely due to your stock vtgs. Time to upgrade!!

 

Haha, I actually thought about that today. It's amazing how fast you can get used to all that power and want to have more.
Hopefully next spring I can get intercoolers, vtgs and clutch done. I am done this year and my car will be putting away at the end of the october for the rainy season.

 

Abby-- two questions, if I may: 1. On your dyno sheet showing HP and torque, why do the traces not cross at 5252RPM ? 2. What is causing the torque to drop so far, so fast, from what seems to be a rather early peak at of ~3850RPM ? Just curious.
Oh, sorry.. one more, please. Does the early (and steep) torque arrival have any adverse effect on driveability, i.e., any sort of "light switch" effect ? Thanks so much for your patience.

 

I don't have race gas but I'm only working half day today - going to go home and do some datalogs and then put in the race file and give it a go. Going to the track for the first time next month and possibly they'll have race gas available - fingers crossed.

 

You know, that might be what I was experiencing - a bit of drop off after 5700rpm. I know I know, time for upgraded vtgs.

I've sent an email off to Todd to see what the different upgraded vtg options are. Seems like there are a few variants. Did you go with a clipped wheel? did it affect low end torque/responsiveness?

 

so true. I'm hoping to put it off for another 2 years to at least partially get some value from my CPO but the reality is I'll probably just say screw it and get the mods next year. Someone told me the dealers here have gotten really picky with ANY mods so they might try to deny any warranty claims even with just an exhaust upgrade.

 

sorry, can't answer your question regarding dyno. I am no expert with dyno, this is the graph that the shop loaded on to my flash drive, and I didn't pay too much attention to it. I think torque suppose to drop once it peaks? the car hits hard and pulls really hard all the way to redline and I really couldn't feel the drop.
Driveability is same as stock, very civilized in normal mode.

 

I have CPO on my car too, but I think it's probably gone because I have hit so many over revs and flashed so many times.

I would say just have fun now and worry about it when it breaks.

 

The reason why the tq looks like such a steep drop off is simply becuase of the way the data is plotted. They did not do a careful job plotting the data. Look at the tq units/per square grid of Abby's vs Evoms (such beautiful dyno graphs). Evoms is linear and consistently 55/sq unit whereas Abby's is not. Abby's value for the unit sq is also much smaller (hence the steeper looking curve). They should be able to re-plot the data so it conforms to standards.