Tech-Tune

Your the man, thanks bro

jmb614

Thanks!

BI-Performance

The 44mm waste gates were put in and the car is doing the exact same thing. Back pressure measured at 130psi.

This was on 15lbs of boost. Looks like we have come to the end of the road.

whipplem104

Is that a type-o? 130 psi?

305-E55

Damnit man,sorry to hear things didn't work out for you and the BIP crew!! You definitely gave it a hell of a shot!!

boostiality

Hear Hear!

I wonder if this same issue happened to the TTCLS which was why he ended up selling the thing no too long ago.

Craig: For the sake of science, would you ever consider installing the kit onto a volunteers stock e55 just to see if it was your particular car's issue that's causing this to happen? I'd happily chip in some coin on the install just to see this thing come to fruition.

e55amgrocket

What size A/R is on the turbos? I would guess that's a big part of your problem

320 dreamer

.82 i think

BI-Performance

.82 I believe Steve! Some more data from today is that the egts in the down pipe was 1000* and egts in the actual exhaust manifold was *600.

when we had these turbos off the car we took every possible measurement and wrote down every number we could find on the turbo itself. we then called into Garrett and a couple other well known turbo companies. well, they came back with the same result, they said we had 3071 turbos.

We called IPS and spoke to the owner, Stas. Stas said we need to speak to his tuner, so now we are waiting for that call to take place with Jason, owner of BIP.

Another thing that is very interesting is that 320 dreamer has 3076 turbos on his Porsche, and the housing measures 2.5", well the turbos in this kit only measure 2.25".

Having these size turbos on a 5.4 V8 is not going to work. There is so much money invested in proofing this kit, IPS needs to step up to get this resolved once and for all. We have gone through the whole kit, addressed issues we thought could be the problem areas, and nothing, no improvement. Sure you can add a bigger down pipe to a 3071 and market it as a 3076, but this is not a Chevy. That may work on camaros and corvettes, but at this point it is clear this does not work on a m113k motor.

RedBullJnky

Yup, it's not a vette!!. I'll call Jason tomorrow.

Denroll

Well that blows (pun!), but I'm glad you're figuring it out. I'm sure you're completely frustrated at this point.

Go look at some *****; you'll feel better.

RAWE55

Sorry to hear Craig, what a PITA you have been through chasing your tail, throwing money around and it ended up being the vendors fault. At least you know you have done all you can, let's hope this gets sorted ASAP.

320 dreamer

craig i have 3071 tials on my car. even if you have these turbos they are still good for 800+ rwhp on a bad day. theres soothing else going on

tial has been known to build many variations of the garrett turbo. its quite possible the previous owner ordered the turbos in this configuration

chawkins2001

Thanks brotha, Really appreciate it

I am also speaking to Garth who built the TT CLS55 in Jersey to see what size turbo's he had on that car

chawkins2001

Thanks for clearing that up, regardless, when you and BIP swapped measurement sizing of the turbo's, this turbo measured 1/4" smaller, right?

GT3071 are rated 300-400HP at the crank each, and are seeing 620rwhp and thats when it takes a plummet. These turbos are maxed out, plain and simple and are too small. Sky high EGTS, sky high back pressure and topped out HP.

The turbos are been pulled off and I am taking them to Diesel Performance to have them spec'd out and identified once and for all. We spoke to Moto Visity yesterday too about them, and they said that turbo is too small for the m113k.

blackbenzz

You're welcome
No problem
The TTCLS ran the 1/4 mile. It was not having these issues
Agreed.
Garth had NOTHING to do with building the TT CLS55. You're talking to the wrong guy. It was Powerhaus.

Hulk

You are correct, the clstt belonged to Binh and was built by his shop Powerhaus

TTE55

Sorry to hear you are going through all this mess. I hope you get it all sorted out. I guess the kit wasn't truly finished and "bolt on" ready. Not sure if this helps any but here is the invoice I had for the kit when my car was at IPS. It notes the turbos as GT3076. Thats pretty messed up if they are actually GT3071. Go ahead and get them checked out to be sure. It will help rule some things out. They would definitely be too small for your application. I personally think that the GT3076 is still a little on the small size for our 5.4 liter engine with 3 valves per cylinder. I would say GTX3076 at least or Precision 6262's. Thats all my opinion though. Good luck brotha. I hope you get this bad boy running. Need it for Wannagofast

Joncl

Chawkins sorry this is happening bud. Contact powerhaus they are the only one who built a proven successful TT setup, they have the right information.

typhoon43

KEEP UP THE FIGHT MAN.
This is what it takes to have a very unique setup. I ditched my old Supercharged setup in the Lightning and went turbo and it took me 2 years to see the fruits of all of my trial and error. I changed turbos, changed wastegates, and went through all the hell you did man, but I'm telling you, the day you witness that first REAL dyno pull, you'll have a ****-eating grin that can be seen from outer space brother. Hang in there!

BI-Performance

Just spoke to tial, we are sending them all our measurements and numbers on the turbos so they can identify these once and for all.

They will then tell us what should be on the car.

Yes, that was a typo earlier Whipplem, lol. I meant to type we saw between 13-15 ib's of back pressure. Tial said we should be in the 6-7ib range.

1ForcedBenz

Heard this build was going on, and congrats on taking it on! After reading through the post's, I'd like to see if I could help at all. So I take it the back pressure was measured between the turbo and the manifold correct, and your saying the back pressure was around 15 lbs under boost of approx 15lbs? I wouldn't consider that your issue in the least honestly, running nearly 1:1 ratio in relation to boost and preturbine back pressure is pretty darn good. Many factory cars run ratios of 1:5 and many higher to help spool the turbos, while not Ideal it still works. Generally you shouldn't ever have breakup issues until you get over a 1.5 on the exhaust side and even then there are plenty of setups running 1:2 without issues. With that being said your turbos aren't the restriction or "to small" at this point of where your issue is occurring in my opinion. Now I'm not saying that once you get everything sorted out and running to wot that the turbos are of sufficient sizing, but take the 275 mercedes engine the turbos are tiny on those cars and make lots of power and torque for example. They have tiny inlets through there even smaller manifolds. I would think your getting break up based around a turbulence issue preturbine.

Pewter KPA

What does the intake/turbo inlet setup on this car look like?

TTE55

Its a little strange to just join a forum to post in a certain thread

Maybe just me IDK. Usually its someone posting on behalf of someone else. But hey maybe I am wrong.

It was mentioned earlier about possible turbulence pre-turbine. As the intake manifold wasn't designed for forced induction. However someone mentioned another twin turbo build that used the intake manifold and they said that they are having absolutely zero problems.

rockthemullet

It may be strange, but he's correct with his information.


Craig, you're on stock manifolds? How did I miss this?! It's turbulence... the more the turbos flow, the worse the symptoms are. With it being an OEM blower car Mercedes did not care how air exited the manifolds, only that they were sufficient for the stock power output. Has anyone completed a rear mount turbo setup? If so, I'm willing to bet they don't have this issue... the air evens out by then.