Building The Perfect B9 A4 | Episode 3

[@Gearsandco]

I love what you guys are doing, that's what we needed as B9 a4 owners, there wasn't enough videos and parts for this car.

[@IEtuned]

We're glad you are enjoying it!

[@Gearsandco]

@@IEtuned I can't wait for the 4th Episode! any idea when it will be out?

[@euroberto85]

I wanna see a total cost breakdown for all these parts at the end of the series

[@K03sport]

I'm sure they would love for you to visit their website and search the parts and compile a list yourself.

[@davidblais2933]

Great idea. A summary episode would be great.

[@AudiSportDre]

HELL YEAH. Now we can efficiently run E85, this is huge. Thank you for the continued A4 but please don’t let it end here. We need more!

[@IEtuned]

More to come!💪

[@kgunnatatted6294]

Love the attention on the B9 A4 😊

[@IEtuned]

SO much coming for the B9 platform from iE, you're going to love it all!

[@peterblais5282]

Awesome work guys! That A4 is going to rip. Lilly FTW.

[@BrokenQuattros]

Lilly is the best dog

[@k5warrior115]

FINALLY FLEX FUEL

[@IEtuned]

It's coming!

[@seanb9907]

FINALLY WE SEE THE PUP!!! Building lookin great!

[@IEtuned]

Lilly really is the best girl.

[@AudiKeys]

As the brother-car owner (B9 A5) this is great! The community would love more!! (Can you guys make more exhaust parts and/or possibly even a turbo, and stage 3… 👀👀👀)

[@IEtuned]

Lots more coming soon for this platform!

[@David111767]

Love that TrueFlex is coming! With that, is there anything regarding port injection coming as well?

[@IEtuned]

As of now, we don't have plans for port injection at this time in development.

[@Aintitsosparkly]

Gordon!! Good to see you in the video :)

[@P3Gauges]

Gotta love a guy who loves his dog. And all that IE green on the shelf looks mighty pretty! 8:26 - Does Rojas see a dentist weekly or what? We'll be throwing TrueFlex on the Mk7R soon!

[@IEtuned]

All of that is accurate.

[@paulgarcha2251]

Stage 3 PMAX TrueFlex in the works??

[@IEtuned]

The B9 A4 2.0T is similar to the MK7 2.0T, but they are very different on the turbo setup. The Garrett PowerMax turbos are designed for transverse mounted 2.0T MQB platform engines and are not compatible with the the longitudinal mounted B9 2.0T MLB platform. However, we are currently looking at B9 2.0T turbo options for future tuning support.

[@charlestucker6365]

my dream has came thru

[@IEtuned]

You dream it, we build it.

[@freddy22622]

how much more can we squeeze out of this is20 turbo with stock injectors?

[@bdez1259]

Gti does 350whp on e85 on their setup, so about there.

[@840customs]

9:41 that Trailblazer tho..

[@ronaudia4b9]

TrueFlex 💪🏼😍

[@IEtuned]

It's here!

[@thatswhyyomamaded2855]

so whens the stage 2 kit for mk8 gti gonna be available? models been out 2 years now 2025’s coming soon

[@whats55]

How do the lowering springs compare to s line cars?

[@danenbaer4480]

This is an Sline car and it still lowered it a bit.

[@K03sport]

so, Bilstein B6 or B8 for the lowering springs? Same valving, but the B8 has a different shaft and operates in a different zone than the B6.

[@Matt-rk3de]

B8 for lowering springs

[@aaronlive1541]

Thank you for putting work in the a4 mk7 engine

[@IEtuned]

We love the B9 A4's!

[@kyle-o5f3l]

Quick question, I know it's a b9 but never caught the year...2018?

[@danenbaer4480]

2017

[@whats55]

Wonder how much power it makes on trueflex and at what % ethanol

[@IEtuned]

The tune is launching in just a couple weeks, get ready!

[@bdez1259]

Just look up the GTI power numbers. My guess is it will be near 350whp.

[@laurelman975]

Ok. Now do this for the B8

[@bdez1259]

E85 will put the b9 A4 into the 11’s…watch

[@IEtuned]

We cant wait to see it!

[@tylerdavis2018]

I dont think Dave actually felt terrible about spraying Danen with fuel.

[@IEtuned]

His remosre did not seem sincere.

[@skyhookpro]

I do not understand something why if the car have a 250bar fuel pump, and you retrofit and old fuel pump that the max pressure by factory is 200 bar, unless that modification increases the fuel pressure over 300+ bar the system stay at the same 250 bar...Please when you tune the car please show the fuel pressure so I can understand why you use an older version of the fuel pump.thabks and great all 3 videos..

[@skyhookpro]

@@ValerianusEustorgios increasing the piston on the hpp does not increase flow, increase pressure why is that because the physical dimension of the pump is not modified the piston is "compressing" more fuel into the same physical hard ware. On the other hand on the low pressure side you can change the whole fuel pump , line and Port injectors and keep the 8-10 bar pressure with increase of fuel flow...the high pressure side is limited by the fuel rail and injector. Replacing the piston on the hpp does not increase the flow because is limited by the physical dimension of the hpp fuel rail and DI. That why a 350bar system achieve 650hp with support hardware....high pressure side work completely different form the low pressure side.

[@Aintitsosparkly]

​@@skyhookproVolumetrically the stock MQB HPFP holds more fuel than the MLB hpfp, which is why the retrofit is needed. The hpfp upgrade kit takes the fuel pressure limit to 250 bar as the stock is 200 for the MQB pump. This is standard for all tuners that are taking these cars to e85 or stage 3.

[@IEtuned]

​ @skyhookpro Hey, happy to help clear this up. We change the B9. 2.0T (MLB) pump to a MK7 (MQB) pump housing so that we can upgrade it for ethanol with our MQB HPFP internal kit. The B9 2.0T pump is laser welded shut and can not be upgraded and in stock form the stroke volume can not keep up with the fuel demands of a performance ethanol/flex-fuel tune. Keep in mind, our larger HPFP pump internals do not increase pressure capacity, it increases volume and thus, flow capacity (the stroke volume is increased from 231mm^3 to 321mm^3 with our kit). Pressure is just a function of flow being forced into a static volume (such as a fuel rail), so all the HPFP pumps can operate at 200, 250, or even 300 bar of pressure -but our larger HPFP internals flow higher at the same pressure. Also, it's important to note that these pumps do not operate at 100% duty cycle all of the time, they bypass any amount of the stroke during low fuel consumption to regulate pressure since flow in must equal flow out. The goal with upgrading the pump is to avoid rail pressure from dropping. To maintain fuel pressure, fuel in must equal fuel out (HPFP in = injector out), if fuel consumption from injection is higher than what the HPFP can deliver, this is when rail pressure drops. By installing an MQB HPFP with our HPFP upgrade, we are able to increase the max available flow so that the pressure can be maintained. This means our simple HPFP upgrade can safely provide the necessary fuel to max out the turbo/engine power on ethanol without adding any unnecessary complexities.

[@skyhookpro]

@@Aintitsosparkly thanks understood

[@skyhookpro]

@@IEtuned I see the problem it the E fuel, adjust the hpp control valve for that particular fuel, understood the goal. Thanks for your time, again great 3 videos!! Great company!