The beans...(475BHP on a 71R Eliminator, stock block)

[400HPA4]

Testing continues today...

This is the dealio...

David Sarabi has done a GTRS retune on my A4...

This involves REVO software and a EuroCode exclusive fueling kit. The fueling kit is comprised of a new mass air flow sensor, map sensor and injectors...

All of these items, along with the retune is allowing my car to run 30psi on the N75.

The initial fuel I am using is Shell V-power 91 octane (because I had a full tank).

Last night we were able to successfully run 26.5psi on the N75 on 91 octane, however right now I have it set at 26.5psi and it will hold this to redline in fifth gear with only a 27.7psi boost spike in the lower gears.

We will attempt to drain the tank today and fill up with VP MS109 to see how things go with race gas.

I have no actual numbers to share because we have not hit the dyno yet, however the car rips like friggen crazy through traffic, the boost response with this fueling kit is awesome, it is nice to be able to modulate the boost with the acellerator pedal.

I will chime in in a bit to let you guys know how things are coming as the day progresses.

<cliff notes>New MAF, MAP, Injectors and retune=up to 34psi on the N75</cliff notes>

[aaaudiprotein]

WOW Good Luck!!!

[dirtybrd]

Nice title.

[dougyfresh]

Let me know how it goes

[jessefrank]

Greg,
Def interested to see some dyno graphs of your setup now. Do you think it has more in the mid/lower rpms? How about spool time?

Right after I bought that OEM SMIC from you I got a deal on AWE exhaust/FMIC...so it got tossed into storage after like 2 months .
My clutch just gave out so the last thing for me to do is a BT upgrade after I get my ECS RA4 stg 3 clutch in. I'm really only looking into the GTRS/71R/2871RS as I'm not dumping too much more into building my engine. I saw on your previous dyno's that your setup dosen't hit peak boost till the upper RPMs which is why I'm leaning toward the GTRS (I'm not trying to start another one of these GTRS/2871 debates!!!!)..anyhow...I'm def interested is seeing some of your new #'s if you go to the dyno.

Oh, is your Ecode fueling kit on their product list yet or still indevelopement?

-Jesse

[7speed]

Thats interesting, I didnt know the GTRS Eliminator series was efficient at 26psi

* edited

[dirtybrd]

Still under testing/development.

[Das General]

Nice to see someone pushing the envelope.

[400HPA4]

Thats interesting, I didnt know the GTRS series was efficient at 26psi

What are your sources?

[7speed]

What are your sources?

No sources, I just didn't know. I figured everyone was going to 30 serires turbos because of that

[dougyfresh]

Thats interesting, I didnt know the GTRS series was efficient at 26psi

I am running a 28series turbo in the mid 20psi range daily.

[7speed]

I am running a 28series turbo in the mid 20psi range daily.

Maybe I should edit that, I meant a Eliminator turbo. Sorry. I thought that everyone was bitchin about the fact that the Elim housing limited that output of the turbo.

[400HPA4]

Basically David is trying to put together a solution for those who already have the GTRS and or any other turbo setup running on REVO tuning...

His data also shows that these fueling components can be used on other software manufacturers that use the N75 to control boost (APR, GIAC), however they will need to be tested as well.

Because he was been so focused on the B5 S4 last year, he did not devote the time he would have liked to with the B6, however some folks are just looking for a little bit more.

My whole goal with this is to remove my eBoost and have a 100% OEM+ looking interior as well as engine bay in this car.

[dirtybrd]

He never said it was efficient. I'd have to re-wire my whole car. I removed all those plugs except the MAP.

[400HPA4]

Correct, it may or may not be...further testing will prove this.

Driveability has definitely improved, numbers will tell the rest of the story.

[20vturbo]

is your engine built?????

[dougyfresh]

N75 FTW! Smooooth power.

[400HPA4]

is your engine built?????

Nope, just a 100% stock longblock that Audi put in the car at 50K miles. Motor has 40K miles on it, all of them are GT28Rs or 71R Eliminator.

[400HPA4]

He never said it was efficient. I'd have to re-wire my whole car. I removed all those plugs except the MAP.

You would have to run the MAF sensor with this setup, it is crucial for adaptation.

[B6480Avant]

subscribed

[OneBadAudi]

cant wait to see the numbers...sounds bad ass..nice work

[djwimbo]

I'm interested. I'm curious if or when the GTRS will actually run out of steam.

Good luck though, I thought you were pushing the envelope before(whp on stock rods), hopefully this isn't what pushes it over the limit.

[Don Supreme]

motor..........

[NyteEscape]

i thought it was a bad idea for that much boost on a stock motor? or is that an exaggeration?

[AudiA4Turbo22]

next in line right here

[absolutegtr]

I miss my N75 soooo badly...

I thought an EBC was similiar in boost management to the N75...

[400HPA4]

100% duty on the wastegate is 33psi, the turbo can only hold 28 to redline in fifth...

Still working, I will have logs and data a bit later...

Moved on from 91 (finished) to MS109

[400HPA4]

Car is still running, pretty much got everything dialed in on MS109, car is much faster than it ever has been before.

I may take it to the dyno tomorrow, depends on how I feel today, I keep pushing a flight back to go back to work and it is costing me $$$.

[Papachristou]

now this sounds like something i would be interested in if the stock engine can hold it!

[Audi Skate Snow]

everyday I change my mind on staying 1.8 or doing a 2.0. I think a built 1.8 with a done up head with a good tune like this (lets pray) will do the trick.

Sure enough I will change my mind by end of the day. Keep us posted greg!

[Don Supreme]

Car is still running, pretty much got everything dialed in on MS109, car is much faster than it ever has been before.

I may take it to the dyno tomorrow, depends on how I feel today, I keep pushing a flight back to go back to work and it is costing me $$$.

Sounds promising Greg. I just hope the motor holds together.

Did you install an aftermarket MAP sensor?

[Audi Skate Snow]

Sounds promising Greg. I just hope the motor holds together.

Did you install an aftermarket MAP sensor?

Agree, kinda scary with that boost. The kit that he is offering comes with a map sensor if i am not mistaking.

I am just really curious to see when that turbo stops being efficient.

Greg get to the dyno!

[400HPA4]

Sounds promising Greg. I just hope the motor holds together.

Did you install an aftermarket MAP sensor?

Define aftermarket?

Just because the 71R will run 33psi, does not mean I am going to do it...26.5psi seems to bee the best all around number and is pretty much the threshold of my fueling for 91 octane.

Some of the positives...ER Comp stays right in the 38-40 degree range, even after multiple high boost passes, EGTs never were maxed out, rarely even hit 900*, the idle is a perfect 1:1 ratio.

[KPC1.8TQuat]

This sounds pretty sweet, can't wait to see the data.

Probably would be overkill for my setup considering I'm going to keep a GT71r elim in the low 20's PSI due to my awesome TIP tranny.

When you said Revo Re-tune do you mean with an SPS?

[Audi Skate Snow]

Define aftermarket?

Just because the 71R will run 33psi, does not mean I am going to do it...26.5psi seems to bee the best all around number and is pretty much the threshold of my fueling for 91 octane.

Some of the positives...ER Comp stays right in the 38-40 degree range, even after multiple high boost passes, EGTs never were maxed out, rarely even hit 900*, the idle is a perfect 1:1 ratio.

sounds promising.

[dougyfresh]

This all makes good sense based on stuff I have seen.

Greg, do what you have to do. There is no rush unless David wants to get this to market ASAP.

[400HPA4]

now this sounds like something i would be interested in if the stock engine can hold it!

The whole goal that David has is to make the GTRS kit safely run at 25-27psi while still on the N75 to maintain "stock-like" driveability.

Even if the car makes less overall power than it has before (which it wont), the way it rips through traffic makes this all worthwhile for me.

I am going to try to fix my speedo today (it does not go over 40mph) and get a video of the increased spool time for you guys.

[Audi Skate Snow]

The whole goal that David has is to make the GTRS kit safely run at 25-27psi while still on the N75 to maintain "stock-like" driveability.

Even if the car makes less overall power than it has before (which it wont), the way it rips through traffic makes this all worthwhile for me.

I am going to try to fix my speedo today (it does not go over 40mph) and get a video of the increased spool time for you guys.

greg you are not running a MBC or EBC at all, just straight n75? and also do you have your n249 valve looped?

[400HPA4]

Straight N75, my eBoost is only in the car right now to serve as a boost gauge. The N249 output is plugged and the DV is running straight off of the intake manifold.

[Audi Skate Snow]

Straight N75, my eBoost is only in the car right now to serve as a boost gauge. The N249 output is plugged and the DV is running straight off of the intake manifold.

nice. any noticeable spikes?