Audi A4 3.0TDI new record? 505hp 980nm

Audi A4 3.0TDI 505hp 980nm

Well guys managed to hit my target of 500hp

So what’s changed? As you know my s200v has been put up for sale to make way for unique turbo.
EFR7670 with S300v housing its a watercooled roller bearing turbo with really nice wheels -

CW:76/57
TW: 70/61, gamma-Ti alloy, lower density (and thus inertia) than conventional Inconel alloys

Thanks to Ruben for all his work on the turbo top job.



I've been driving for approx a month tuning it and trying to get it right for a power run. Its been task to balance spool Vs surge - for example more spool is possible but then get surge so the short term workaround is to run less boost. Long term would be to leak off some air via ECU controlled valve.
So yes it does have lag but it still have same torque as a stock 3.0tdi @ 2.2k in its current form.

Dyno

We turned up on a BMW day









Smoke test Video:

https://youtu.be/kX7h95M7adI
(captured by Jay)

The turbo is really a monster and still has more scope, but I'm out of fuel. I guess with larger injectors 550hp would be on the cards.

EGT's - 900deg
Stock engine (apart from valvesprings)
Stock exhaust apart from downpipe
Stock gearbox
No smoke

Cheers
Bobby

Nice!
Love how clean it's running.
Very interested to see how the alloy turbine does in the oxidizing exhaust stream.
Also interested in using compressor bleed air to avoid surge. Works on big aircraft engine compressors, no reason it wouldn't on these compressors.

Great result! Congrats! Good to know the tiptronic is holding the torque.
Any remap to it, or just the normal service filter and oil?

Very nice!

great result bobby !!

Good going, these V6's must have much better porting than the 2.0's!

[486] said:

Nice!
Love how clean it's running.
Very interested to see how the alloy turbine does in the oxidizing exhaust stream.
Also interested in using compressor bleed air to avoid surge. Works on big aircraft engine compressors, no reason it wouldn't on these compressors.

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Thanks - yep I actually hate smoke and its my everyday ride so needs to be road friendly.

Macradiators.com said:

Great result! Congrats! Good to know the tiptronic is holding the torque.
Any remap to it, or just the normal service filter and oil?

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Mac - the 6hp 28 is really strong - stock sw. Only thing I was service it maybe 20k ago.

iModAMD said:

Very nice!

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Thanks

raffshore said:

great result bobby !!

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Cheers Raf

ryanp said:

Good going, these V6's must have much better porting than the 2.0's!

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Thanks Ryan - yes goes very well. Regarding head I suspect they are same but I have no flow data to confirm.
But I wouldn't like to try this on stock valve springs.

your sig needs an update!

Congratulations!

Congrats! Great Autobahn car. Probably give a stock RS6 a good run and go up to like 333kmh. How far are you pushing it in RPM? Plot stops at ~4600rpm.

Congrats! I see rpm sensor on the turbo, care to share the figures you see?

Nice work Bobby
May I ask what boost and rail pressure you are running now, still a cp3-110 pump?

Thanks guys - power is flat, but in S I can change just at 5k
Turbo speed voltage needs confirmation as the reading is too low at the moment.
CP3 R90 hpfp

really nice build and a lot of power for the A4 it"s a great sleeper.

I really like the thought that the "off the shelf" s300v with similar inducer was not quite good enough.

Ground breaking work done here and thank you for sharing !

Im sure a stock s300v will also work very decent. but nonetheless my vision is that you should always raise the bar for yourself. stock s300v was just too easy =)

the efr has some distinct advantages, which come at a price. but hey

I heard turbo speed is along the lines of 120k, and at WOT boost>emp from 2500 till 4000 rpm

Good job Bobby!

S360V (S300 with 60mm compressor inducer) is cheaper option for big power 3.0 liter build.

Great result !
Not easy to achieve !

Congrats!

Plastic manifolds are still in one piece?
Those valvesprings are something you sell or where these could be sourced? Id be probably interested in a set too.

andy2 said:

I really like the thought that the "off the shelf" s300v with similar inducer was not quite good enough.

Ground breaking work done here and thank you for sharing !

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Just to be different
Cheers Andy

Rub87 said:

Im sure a stock s300v will also work very decent. but nonetheless my vision is that you should always raise the bar for yourself. stock s300v was just too easy =)

the efr has some distinct advantages, which come at a price. but hey

I heard turbo speed is along the lines of 120k, and at WOT boost>emp from 2500 till 4000 rpm

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That reminds me - anyone using one of these in the future just be careful as the formula listed is incorrect.
http://www.roadragegages.com/tss.htm

I have two of them and will confirm if they are both same or not. Pretty bad of them tbh.

Yucca said:

Good job Bobby!

S360V (S300 with 60mm compressor inducer) is cheaper option for big power 3.0 liter build.

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Thanks I didn't test but if I had a leak off spool would be sooner than regular S360v. Would be nice to see.

Lucian189 said:

Great result !
Not easy to achieve !

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Cheers

altz1 said:

Congrats!

Plastic manifolds are still in one piece?
Those valvesprings are something you sell or where these could be sourced? Id be probably interested in a set too.

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Thanks
Drop me a PM

I did a comparison of the 2 turbos from the previous dyno and you can see about overall energy transfer difference ~6% over rpm range (2300-4600) when integrating (trap. rule) over rpm.

Congrats on breaking the 500 mark very impressive! Looks like i need to get moving your beating me to the chase. I have everything i need for these results and im very excited my 2.0 compound build has me distracted lol
I would also be interested in a set of springs since my engines apart now anyways cheers

Congrats!

Machineman said:

Congrats on breaking the 500 mark very impressive! Looks like i need to get moving your beating me to the chase. I have everything i need for these results and im very excited my 2.0 compound build has me distracted lol
I would also be interested in a set of springs since my engines apart now anyways cheers

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If you had some bigger nozzle for sale that would be good ??

I pulled a 9.7 seconds from 100 to 200
Happy with that

Verrry impressive

Proof or it didnt happen, someone would say lol

Bobby Singh said:

I pulled a 9.7 seconds from 100 to 200
Happy with that

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show me a grocery store ticket

great time bobby

Bobby its good performance, and good you are not in jail like Jamie is saying for testing your car.
Raffshore we wait the 100-200 performance from your record holder , please stop trolling.
Offer us some facts instead of so much blabla.

Macradiators.com said:

Bobby its good performance, and good you are not in jail like Jamie is saying for testing your car.
Raffshore we wait the 100-200 performance from your record holder , please stop trolling.
Offer us some facts instead of so much blabla.

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Hard to do 100-200 when your car is in bits.