Want to know what it's like to drive one of the APR Stage III TTRS Development Vehicles? [Video]

[Marty]

Not the best exhaust splitter design in the world, unfortunately... just slams the exhaust gas coming from the downpipe into a flat wall, and then it finds its way around the sharp bend and into the stock twin pipes.

[YYC Dubber]

Turbo kicks in same way as OEM and hybrid turbos but with just alot more on top. Ive seen all 3 dyno sheets and the low rpm are identicle, apart from that where the hybrid and oem torque levels start to flatten out, the stage 3 keeps climbing. I think this is what gives the lag impression. Trust me though it drives like a OEM turbo car still, amazing.

The 2.8 sec time was done on road tyres, on a normal road, not a drag strip. The run was timed via a gps v-box.

what was the test car they used for this? Was it the Manual Transmissions APR car? If so I cant wait to see them do a DSG car!!!!


Arin, would it be possible to see a Stage 3 power curve for the 2.5 TFSI soon?

[Arin@APR]

Not the best exhaust splitter design in the world, unfortunately... just slams the exhaust gas coming from the downpipe into a flat wall, and then it finds its way around the sharp bend and into the stock twin pipes.

Yeah, I'm not exactly worried about the way something may look from the outside, and the theories behind how it may be a restriction, because I know that's not the case when measured on the dyno. It's not a wall either. It's a nice even curved surface making an excellent transition from 3inch to dual 2.5 inch exists.

If we negate the tremendous gains during spool (+60 FT-LB at some RPM), we're making between 10-30 HP more across the board. That's pretty good if you ask me.

[tdi-bart]

is the stage2 chip available already?

[YYC Dubber]

will this downpipe rear splitter bolt right onto the rest of the OEM rear resonators/ muffler?

[Arin@APR]

Arin, would it be possible to see a Stage 3 power curve for the 2.5 TFSI soon?

I'll have one car on display at waterfest with some numbers, but I've mainly held off till we've finalized the turbo and such. We still have a bunch of things to do....

Oh, and what's this???

[Arin@APR]

is the stage2 chip available already?

Yes

will this downpipe rear splitter bolt right onto the rest of the OEM rear resonators/ muffler?

Yes

If you have our catback exhaust, use the big tube at the top.

If you have the OEM catback exhaust, use the splitter after the cat tube.

[Poverty]

I'll have one car on display at waterfest with some numbers, but I've mainly held off till we've finalized the turbo and such. We still have a bunch of things to do....

Oh, and what's this???

this fills me with so much joy

[Marty]

Yeah, I'm not exactly worried about the way something may look from the outside, and the theories behind how it may be a restriction, because I know that's not the case when measured on the dyno. It's not a wall either. It's a nice even curved surface making an excellent transition from 3inch to dual 2.5 inch exists.

If we negate the tremendous gains during spool (+60 FT-LB at some RPM), we're making between 10-30 HP more across the board. That's pretty good if you ask me.

You win, that transition looks much better than the isometric view suggests. I didn't call it a "restriction", as restrictions are a misnomer in intake / exhaust systems. It just appeared non-ideal in the other pic.

Would splitting with a sharp center edge be better in an ideal world? Yes, it would be a less lossy transition. Would it make a measureable difference in performance? I would guess no.

[joneze93tsi]

this fills me with so much joy

+1,000,000

[Marty]

I'll have one car on display at waterfest with some numbers, but I've mainly held off till we've finalized the turbo and such. We still have a bunch of things to do....

Oh, and what's this???

Beautiful!!

[joneze93tsi]

I'll have one car on display at waterfest with some numbers, but I've mainly held off till we've finalized the turbo and such. We still have a bunch of things to do....

Oh, and what's this???

This got me thinking...

Is there going to be a Stage2+ (think FSI Cars)?
I guess what I'm asking is if fueling is a concern, or holding you back at all on the stock turbo?
I remember debating for a long time on getting the pump for my B7, but once I did I was so happy I did.

[Arin@APR]

This got me thinking...

Is there going to be a Stage2+ (think FSI Cars)?

Not sure it's necessary unless running the turbo wide open down low.

[Marty]

If you have our catback exhaust, use the big tube at the top.

If you have the OEM catback exhaust, use the splitter after the cat tube.

So the cat tube in your picture is only used by folks with an OEM catback exhaust? Or is there a way to use the high-flow cat tube with your RSC exhaust as well?

The lengths of the straight tube and the cat tube are different, so they don't appear to be interchangeable (I'm confused).

[Arin@APR]

(I'm confused).

Anything that you can come up with that sounds wrong is ultimately not the way it is.

Just wait till I launch the exhaust, because when I do, I lay it all out with diagrams so it all makes sense.

[joneze93tsi]

Anything that you can come up with that sounds wrong is ultimately not the way it is.

Just wait till I launch the exhaust, because when I do, I lay it all out with diagrams so it all makes sense.

Will it be colorful and amazing?

[Marty]

Anything that you can come up with that sounds wrong is ultimately not the way it is.

Just wait till I launch the exhaust, because when I do, I lay it all out with diagrams so it all makes sense.

We're impatient (if you haven't noticed already).

[joneze93tsi]

[Marty]

Alright, someone from Waterfest please post some pics of the Stage 3 info!

[hightechrdn]

APR - As another TT-RS owner in the USA, count me for a Stage 3 kit!

Sent from my SCH-I535 using Tapatalk 2

[Marty]

Hey Arin, from the video it looks like you guys are still running a stock clutch in that Stage 3 TT-RS car. If you're just driving the car on the street, do you think that's something you can continue to get away with, or are you guys having any issues with holding the torque in that thing?

[Arin@APR]

Hey Arin, from the video it looks like you guys are still running a stock clutch in that Stage 3 TT-RS car. If you're just driving the car on the street, do you think that's something you can continue to get away with, or are you guys having any issues with holding the torque in that thing?

I'm surprised we haven't had any issues yet, but I would assume that's related to driving style. I honestly don't have an answer yet though.

[Marty]

I'm surprised we haven't had any issues yet, but I would assume that's related to driving style. I honestly don't have an answer yet though.

So no evidence of clutch slippage on the dyno? If so, that's pretty good news for folks that wouldn't beat the heck out of the car with the kit (maybe changing the clutch won't be a requirement).

I suspect that the Stage 3 peak torque actually isn't THAT much higher than the Stage 2? (hint: spill the beans on the peak torque!)

[Arin@APR]

I suspect that the Stage 3 peak torque actually isn't THAT much higher than the Stage 2? (hint: spill the beans on the peak torque!)

Just pulled up one wheel graph. Peak torque was 499.9 ft-lbs to the wheels, so no, stage 3 is higher. ; )

[Marty]

Just pulled up one wheel graph. Peak torque was 499.9 ft-lbs to the wheels, so no, stage 3 is higher. ; )

Niiiice. So stage 2 is 390 whp / 432 wtq (more tq than hp), while stage 3 is on the order of ~550 whp / 500 wtq (more hp than tq).

Feel free to correct my stage 3 whp assumptions, maybe with a dyno plot?

[Marty]

Just pulled up one wheel graph. Peak torque was 499.9 ft-lbs to the wheels, so no, stage 3 is higher. ; )

Hey Arin, any juicy Stage 3 updates?