Full throttle Electric Supercharger Build Thread

[fenton]

Originally Posted by VR46

Just trying to figure out if there's anything funky - the guy at ptuning seemed to think the AFRs in the lower rev ranges were concerning

Your running the latest tune right?

Also was this a tail pipe Afr reading? Those are notoriously off by a couple points on the lean side.

What does a stock FRS do on their dyno?

[VR46]

Originally Posted by fenton

Your running the latest tune right?

Also was this a tail pipe Afr reading? Those are notoriously off by a couple points on the lean side.

What does a stock FRS do on their dyno?

Yes, running latest tune.

As far as their dyno, I did find this thread regarding their header

maybe @ptuning can chime in if they know what a stock BRZ/FR-S does on their dyno?

EDIT: found this quote deeper in the thread: "A stock FR-S/BRZ puts down around 160whp on our dyno."

[Boofneenee]

Would a data log be more accurate than the dyno? Its got to be because the o2 sensor recording the oft log is in the header. Certianly thats more reliable than from the tailpipe. My afrs are rock solid. run one and post it up here to view

[raven1231]

Originally Posted by VR46

Yes, running latest tune.

As far as their dyno, I did find this thread regarding their header

maybe @ptuning can chime in if they know what a stock BRZ/FR-S does on their dyno?


EDIT: found this quote deeper in the thread: "A stock FR-S/BRZ puts down around 160whp on our dyno."

That does seem really weird...Their car produces roughly the same power with just a header and on pump as an esc 1.5 car running e85? ??

[fenton]

Originally Posted by raven1231

That does seem really weird...Their car produces roughly the same power with just a header and on pump as an esc 1.5 car running e85? ??

He also has a AT remember so he will be down from the 160 number a MT FRS would do. I think these are good results. Assuming you would make about 150 stock this is a huge gain and its a gain for the entire rpm band. You could have easily went WOT at 3k and made 180tq as well.

[fenton]

Their header only ever makes just over 150tq. He is making more than 150 tq from 0 to about 7000 rpm. The area under the curve is substantially different. Its not uncommon for a fully tuned and modes FRS to come close to the peak HP of a phantom sc FRS but they only match that HP for about 500 rpm of the power band as seen here by comparing Tue two graphs. I would say everything is looking good here. Good numbers vr46

[DeliciousTuning]

Originally Posted by VR46

Went to Ptuning today to have some dyno pulls done. I talked to the guy doing the pulls to let him know not to go WOT too low, he started off pretty easy and got a little more aggressive with each successive pull.

Please help me interpret these results:

Info - it was about 93 degrees out, approx 200 feet above sea level

My car: '13 BRZ AT
Borla UEL
Tsudo catted front pipe
Stock catback
OFT ESC E85 A01D tune v2.01 beta
Phantom ESC with 1.5 dump conversion

data log from one pull







am i doin' it right?

Well as far as the AFR's, they are concerning down low BUT being the power curve look smooth (no dip with the AFR's running lean) in that area I would think something else is going on. My gut reaction is to think the wideband at the tailpipe is not reading correctly and that is why the AFR's are all wonky. Maybe you have a dual exhaust system or exhaust tips and down low the airflow out that tailpipe the meter is in is not reading much. Just a guess...

Like everyone has stated I would look at the datalogs and see what those show as they will offer better information being they are from the OEM wideband in the header.

Lastly how does the car feel when accelerating through this area in the RPM range? If it feels smooth, it is just another sign the sensor int he tailpipe is not reading correctly.

Cheers,
William Knose
Delicious Tuning

[VR46]

Originally Posted by Boofneenee

Would a data log be more accurate than the dyno? Its got to be because the o2 sensor recording the oft log is in the header. Certianly thats more reliable than from the tailpipe. My afrs are rock solid. run one and post it up here to view

Yep, there's a link to the data log in my post with the dyno graphs above

[raven1231]

Originally Posted by fenton

He also has a AT remember so he will be down from the 160 number a MT FRS would do. I think these are good results. Assuming you would make about 150 stock this is a huge gain and its a gain for the entire rpm band. You could have easily went WOT at 3k and made 180tq as well.

This is true. Thanks for the clarification fenton!

[VR46]

Originally Posted by DeliciousTuning

Well as far as the AFR's, they are concerning down low BUT being the power curve look smooth (no dip with the AFR's running lean) in that area I would think something else is going on. My gut reaction is to think the wideband at the tailpipe is not reading correctly and that is why the AFR's are all wonky. Maybe you have a dual exhaust system or exhaust tips and down low the airflow out that tailpipe the meter is in is not reading much. Just a guess...

Like everyone has stated I would look at the datalogs and see what those show as they will offer better information being they are from the OEM wideband in the header.

Lastly how does the car feel when accelerating through this area in the RPM range? If it feels smooth, it is just another sign the sensor int he tailpipe is not reading correctly.

Cheers,
William Knose
Delicious Tuning

Yep, link to datalog is in the post, does appear to differ slightly. I'm currently running the stock catback, with (dingdingding) exhaust tips which I used to replace the fugly stock ones.

[DeliciousTuning]

Originally Posted by VR46

Yep, there's a link to the data log in my post with the dyno graphs above

In your logs it looks as though it is running stoich for a couple hundred RPM's (~4600 - 5100) probably due to the switch over from Closed Loop to Open Loop. This is always a balancing act between fuel economy and making sure there is enough fuel for the forced induction application.

Being the boost is so low on this kit I do not find it to be of any concern. As an example stock Subaru 2015 WRX's run 5 PSI and run stoich in order to improve fuel economy.

Cheers,
William Knose
Delicious Tuning

[Target70]

I was thinking they could have floored it from ~2500rpm, and you might have had a higher peak TQ. It looks like you started making boost at 4200rpm, it took .7 seconds to get to full boost of 3.63psi at ~4900rpm

That is the first time I have paid attention and noticed the drag reduction kicking in. from 3200rpm till 4200rpm.

also does stock afr still measure correctly when running e85?

[enwave]

Love seeing these charts. Looking at the area under the curve just reminds me how good my daily driving experience is these days.


Sent from my iPhone using Tapatalk

[VR46]

took another data log this morning, third gear