My first Audi - 2001.5 S4 with Custom Single Turbo setup...

[britishturbo]

I concur..... its so nice being able to swap turbos in the same amount of time that it takes to change your oil

I find it best to do both at the same time lol.

BTW... my oil I used was probably part of the big reason my previous turbo failed...
Different oil now lol

[Monty23]

I only use Rotella T6

[britishturbo]

I only use Rotella T6

I used to always use Valvoline VR1 20W50 on all my other high performance cars... I'm back to using that now on the S4.
I made the mistake of using Mobil 1 Synthetic 5W30 on the last turbo...

[CELison]

I used to always use Valvoline VR1 20W50 on all my other high performance cars... I'm back to using that now on the S4.
I made the mistake of using Mobil 1 Synthetic 5W30 on the last turbo...

I use mobil 1 5w30....have been for 4 years.

[britishturbo]

I use mobil 1 5w30....have been for 4 years.

You also don't have big turbos lol.
Big turbo's create an extreme amount of thrust.

Read this once from a turbo manufacturer...

http://store.forcedperformance.net/m...otor%20Oil.pdf

The only time they and other turbo companies have problems seem to be with Mobil 1 on big journal bearing turbos.

[britishturbo]

The thrust forces generated by a FT21 at 25psi is nowhere near the same as a large turbo at 30+psi...
Considering the thrust bearing is probably the same size... lol

[britishturbo]

To Quote Forced Performance:

There were two things different in this test. The first thing was that we changed to Mobil 1 10w-30 and
the second thing was the result, thrust bearing damage. The thrust bearing was starting to burn around the
edges. The edges of the steel thrust collar and the tips of the steel thrust ramps had both turned blue from
heat and started to smear the metal. Datalogs of the oil temp and pressure showed that both temp and
pressure were virtually the same as with the Brad Penn oil, but the result is far from acceptable when using the
Mobil 1 10W-30 engine oil.

[britishturbo]

So for the cliffs notes crowd out there, here is the summary: Do not use Mobil1 10w30 or any other “on
highway” GF-4 oil in your 4G63 motor with any FP high output stock appearing turbo. Use a suitable racing oil
designed for high film strength and heavy pressure loading such as Brad Penn, Joe Gibbs, Valvoline VR1, Amsoil
Racing oil or Royal Purple racing oil. Also remember that racing oils are detergent free and need to be changed
frequently

[CELison]

yeah yeah your turbo is bigger. we get it

[britishturbo]

yeah yeah your turbo is bigger. we get it

Haha did you decide if you're coming over my place before RaceWars or not btw?

[spd579]

I only use Rotella T6

Ditto......aww a moment haha

This stuff is designed for turbo diesel motors in big rigs pushing 50+ psi.......I would hope it could handle your puny turbo's thrust load by comparison????

[CELison]

Haha did you decide if you're coming over my place before RaceWars or not btw?

nope. But if I come sat I'll be there early. I shoot you a text tomorrow. But probably Fri

[britishturbo]

nope. But if I come sat I'll be there early. I shoot you a text tomorrow. But probably Fri

Sounds good bro!

[britishturbo]

Picked up the Nitrous but didn't get the wiring finished tonight... Grrrr
So it's tomorrow night or Friday.
I have a large install list for Friday .

[MileMan402]

I have a large install list for Friday .

Sounds like a few of us do, install party at your place? I'll pick up some extra o-rings just in case ;)

[martin0079]

So for the cliffs notes crowd out there, here is the summary: Do not use Mobil1 10w30 or any other “on
highway” GF-4 oil in your 4G63 motor with any FP high output stock appearing turbo. Use a suitable racing oil
designed for high film strength and heavy pressure loading such as Brad Penn, Joe Gibbs, Valvoline VR1, Amsoil
Racing oil or Royal Purple racing oil. Also remember that racing oils are detergent free and need to be changed
frequently

What about mobil 1 15w50? I have been running it for some time mind you I do not have a big turbo but still I would think it would be a safe choice no?

http://www.mobiloil.com/USA-English/...aspx?WT.srch=1

[Meow]

So for the cliffs notes crowd out there, here is the summary: Do not use Mobil1 10w30 or any other “on
highway” GF-4 oil in your 4G63 motor with any FP high output stock appearing turbo. Use a suitable racing oil
designed for high film strength and heavy pressure loading such as Brad Penn, Joe Gibbs, Valvoline VR1, Amsoil
Racing oil or Royal Purple racing oil. Also remember that racing oils are detergent free and need to be changed
frequently

HTHS is a great indicator of a good quality oil imo. (3.0 or higher only goes in my s4) Mobil 1 Turbo Diesel oil is the bomb diggity. :)

[britishturbo]

[obijohn22]

Nice Lee. Man you've got yourself under the gun.... If you hadn't had those chra problems.....I hope it's smooth sailing for you from here on out and you get to show up at race wars with everything how you want it. E85 is the shit!!! I am hoping to out spool you and make you catch me. That will be my only chance.... You are going to make more power than I do no doubt! I think we should set a rev limit of 7200 for raceways....;). Lol

[britishturbo]

So after filling up with E85... adding 30% fuel, and more timing... at the same boost level first test run got the following:

FATS: 2.5
Estimated WHP: 680

LMAO I love E85!

[britishturbo]

Nice Lee. Man you've got yourself under the gun.... If you hadn't had those chra problems.....I hope it's smooth sailing for you from here on out and you get to show up at race wars with everything how you want it. E85 is the shit!!! I am hoping to out spool you and make you catch me. That will be my only chance.... You are going to make more power than I do no doubt! I think we should set a rev limit of 7200 for raceways....;). Lol

LMAO! But I rev to 8200+ haha

As long as my tranny holds together I'll be good for Saturday...

[obijohn22]

LMAO! But I rev to 8200+ haha

As long as my tranny holds together I'll be good for Saturday...

Haha man I'm just trying to tip the scales!!! Im on stock heads still.... but i spin em to 7400...Can't wait man

[britishturbo]

Haha man I'm just trying to tip the scales!!! Im on stock heads still.... but i spin em to 7400...Can't wait man

With nitrous and quick spooling turbos I think you might be the man to beat lol.

[obijohn22]

No man... I'm only boosting 23 psi currently. I need to get a Maf figured out for my setup...... I'm between 5-600 whp on spray right now is my guess..... But the hot day we will have heat soak may slow some others down.... It's always -50 in my intake!! Lol

[britishturbo]

No man... I'm only boosting 23 psi currently. I need to get a Maf figured out for my setup...... I'm between 5-600 whp on spray right now is my guess..... But the hot day we will have heat soak may slow some others down.... It's always -50 in my intake!! Lol

Ah ok... but you are probably at that power level at 4000rpm right? lol
I'm at about 200whp at 4000 rpm... and 500whp at 5000rpm lmao!

Should be very close between you and rtl then...
What FATS times do you run? 2.7/2.8?

[AudiSportB5S4]

Lee - you need to grab a Vbox and do a 60-130... I'd love to see how it stacks against the fastest times out there for S4s with the 770s getting all the power they can out of them, and the 2873s? or whatever that guy was running to get 5.4X.. Burningcoals was 5.7.. I think although you're a little slower in the FATs comparison (bad range for your turbo anyway), your setup has to pull harder in my opinion in 4th than theirs do so I'd bet you're right there..

[britishturbo]

Lee - you need to grab a Vbox and do a 60-130... I'd love to see how it stacks against the fastest times out there for S4s with the 770s getting all the power they can out of them, and the 2873s? or whatever that guy was running to get 5.4X.. Burningcoals was 5.7.. I think although you're a little slower in the FATs comparison (bad range for your turbo anyway), your setup has to pull harder in my opinion in 4th than theirs do so I'd bet you're right there..

Where can I get one from? I tried to google it without any luck lol

[Monty23]

Where can I get one from? I tried to google it without any luck lol

http://www.velocitybox.co.uk/

[CELison]

.UK even. Christ what kind of silly brit are you?

[Austonwerner4]

How much power is the other engine going to make?

[AudiSportB5S4]

Where can I get one from? I tried to google it without any luck lol

Tweet rents his out I believe.. For basically shipping/insurance on it. Or, the link above works too :).

[britishturbo]

Tweet rents his out I believe.. For basically shipping/insurance on it. Or, the link above works too :).

Ummm yeah they are expensive... lol

Tweet! Can I borrow yours? lol

[britishturbo]

.UK even. Christ what kind of silly brit are you?

Huh? Piss off you bloody yank!

[Schoolbus4]

You make a good decision by switching to Geico, sorry E85 lol

[spd579]

How much power is the other engine going to make?

10,000 whp @ 50k

[Monty23]

BT, post up a log showing 3rd gear acceleration during your 2.5 fats time

[aysix]

92 octance? I always thought it went 91 to 93 at pumps. Werd.

[Monty23]

92 octane at Wawa around these parts. I only get 93 from Sunoco though...

[getslideways]

92 octance? I always thought it went 91 to 93 at pumps. Werd.

WA is the same oddball configuration, 87, 89, & 92

[LINDW4LL]

We have 87,89,91,93 in WI. No 100 though...