TSi tuning

[Rfkdemon]

According to DHL, my TTE450 upgrade is due to be delivered tomorrow. The TTE team seems really capable and helpful. I've been speaking with Simon (based in the UK) as and when needed.

The harder part seems to be finding a one-stop shop to do the installation and tuning. MRC Tuning is not interested in doing this anymore. Too many boost hose failures according to them when I asked. VASworks (where I normally get all engine work done) can do the spanner work but doesn't have the facility to do the custom tuning and dyno work. I've been told I can drive it untuned to get it somewhere where they can create a custom map and dyno it, so that might be an option. Would have preferred to get it all done in one go though.

Any hints/tips or experiences that TTE450 owners can share would be appreciated.

Mine won't have an EGT bung welded on. Have never heard of that before and it would have been too late to ask more questions about it.

I'm considering a sports cat to go with the Milltek cat-back I already have, but would really like to keep the noise somewhat manageable.

I have a 200 cell sports cat on my custom downpipe and I ended up having to put another silencer on it as it was too loud for me.

Mat

 

[roooms]

Rick at Unicorn maybe wortt a shout or R-Tech. What boost hoses are MRC seeing burst? Standard ones?

The person on the phone didn't provide much detail, just that they had generally seen too many failures. When I mentioned this to TTE they suggested a likely fault is with hoses and mating surfaces not being properly prepared and combined with high-quality clamps. I guess any hose isn't great if you don't tighten it sufficiently to the IC or you're unable to get a sufficient hold due to a lack of preparation.

 

[Mars2]

HI,

Funny what MRC says. I'm on OEM Boost hose my TTE450 is at 2.0 Bar of boost tapering to 1.7bar at redline. I did 30.000Km like that no problem.
Maybe those boost hose failure are with Silicone forge kit. I had lot of problem with silicone hose on my Subaru's , Audi RS2... Never again silicon hose.

You have to find a way to remove the hard limit (1.55bar max allowed) in ECU MED17.1 to get to 2 bar. With the torque that MRC claim I can see that they did not remove it.
It's not easy to remove that 1.55 bar hard limit in MED17.1
So look strange to me that you pop off boost hose with 1.55 bar. It's very mild boost. Specialy if you compare to diesel remap engine's.
Pretty sure it's silicone hose.


I would not go for Milltek. I had one I remove directly. Only half of the center box is indeed a silencer. The other half is just a stainless tube not perforated.
Miltek crazy loud with a TTE 450 as the turbine wheel is bigger than OEM turbo it let pass much more noise. OEM turbo with it tiny Turbine work as a silencer.
I went after for a Scorpion 2.75 exhaust with a silencer with inside tube that is perforated on 100% of it length. A REAL silencer.

I'm working on building a silencer at the back as it is still too load for me.

I have DTH 4" to 3" down pipe

Performance Downpipe T5 T6 2.0TSI Cat Sportcat

Performance Downpipe for the T5 and T6 with2.0 TSI engine

www.dth-turbo.de

 

[Mars2]

The person on the phone didn't provide much detail, just that they had generally seen too many failures. When I mentioned this to TTE they suggested a likely fault is with hoses and mating surfaces not being properly prepared and combined with high-quality clamps. I guess any hose isn't great if you don't tighten it sufficiently to the IC or you're unable to get a sufficient hold due to a lack of preparation.

On TTE450 Their only one boost hose attached ( like on every turbo) and the part to what it's attached is OEM VW part with very good grooving to block the hose to pop from it. OEM boost hose also have super good clamp system attached .

 

[Mars2]

The perforated silencing part in Milltek box is not even 20cm long ( 8 Inch). This not A SILENCER it's a SCREAMER
Picture I took when I receive my Milltek exhaust

 

[Mars2]

Scorpion Silencing part is full length of the box. That make sense. A real SILENCER
Picture I took when I receive my Scorpion exhaust.


For those who want to fit a Scorpion exhaust to a T6 TSI you just need to buy from Milltek the adaptor from down pipe to resonator. then every thing fit perfect.

 

[Mars2]

DTH down pipe is Art. But pricey
I never spent so much on a down pipe

 

[roooms]

Thanks for sharing all your experiences @Mars2 , I really appreciate it. My wallet might not.

Here are some "unboxing" pics of the TTE450 that was delivered today.

 

[Mars2]

Good memory for me. You must be exiting to get it on your Van

 

[roooms]

Quick update on where I am with the upgrade since it may help others or at least provoke some discussion…

• TTE sent me a fully upgraded turbo in exchange for the one I sent them. Pictures earlier in this thread.
• VAS Works in Poole said I’d need an upgraded high pressure fuel pump to go with the turbo. This matches some of the TTE examples on the TTE website so I bought a LOBA pump (~£650) which seems to be the common approach. Annoyingly that took nearly two weeks to arrive.
• When booking the van in to have these parts fitted I was told I’d need a sports cat or decat as the stock cat is too restrictive. TTE have two examples on their website showing 400bhp+ with stock exhaust, so I was hoping to avoid this and the potential noise increase.
• TTE also told me I could drive the van with the new turbo fitted before it was mapped. I currently have a Revo stage 1. VAS Works said this is a bad idea and I really need to get a suitable map on it as it won’t be happy at all without it. They don’t have a rolling road though but are chatting to racing line for me about map files.

Paul at VAS Works is currently running the TTE450 on his van and has spoken to many people about their plans so while his guidance means spending more money and solving the map issue, I think he’s got a known working combination which is promising.

My plan at the moment is to get a downpipe made with a sports cat, probably from longlife in Basingstoke. That’s another ~£450 and might then mean I need a custom cat back exhaust with extra silencers (~£800) to keep things at reasonable noise levels.

So the total price is creeping up. I can see why the jump from TSI stage 1 (just a map to 275-300bhp) to hybrid turbo is a dilemma when considering bang for buck.

The van is my only project at the moment though. I’m ok with investing a bit more in it to see what 400bhp in something with the aerodynamic properties of a shipping container feels like.

Just sharing this here as it might be useful for another TSI owner one day.

 

[Gossa]

Quick update on where I am with the upgrade since it may help others or at least provoke some discussion…

• TTE sent me a fully upgraded turbo in exchange for the one I sent them. Pictures earlier in this thread.
• VAS Works in Poole said I’d need an upgraded high pressure fuel pump to go with the turbo. This matches some of the TTE examples on the TTE website so I bought a LOBA pump (~£650) which seems to be the common approach. Annoyingly that took nearly two weeks to arrive.
• When booking the van in to have these parts fitted I was told I’d need a sports cat or decat as the stock cat is too restrictive. TTE have two examples on their website showing 400bhp+ with stock exhaust, so I was hoping to avoid this and the potential noise increase.
• TTE also told me I could drive the van with the new turbo fitted before it was mapped. I currently have a Revo stage 1. VAS Works said this is a bad idea and I really need to get a suitable map on it as it won’t be happy at all without it. They don’t have a rolling road though but are chatting to racing line for me about map files.

Paul at VAS Works is currently running the TTE450 on his van and has spoken to many people about their plans so while his guidance means spending more money and solving the map issue, I think he’s got a known working combination which is promising.

My plan at the moment is to get a downpipe made with a sports cat, probably from longlife in Basingstoke. That’s another ~£450 and might then mean I need a custom cat back exhaust with extra silencers (~£800) to keep things at reasonable noise levels.

So the total price is creeping up. I can see why the jump from TSI stage 1 (just a map to 275-300bhp) to hybrid turbo is a dilemma when considering bang for buck.

The van is my only project at the moment though. I’m ok with investing a bit more in it to see what 400bhp in something with the aerodynamic properties of a shipping container feels like.

Just sharing this here as it might be useful for another TSI owner one day.

Just for perspective...Pauls van at VAS is running about 450. I have driven it quite a bit and it can be handful, especially the torque steer under acceleration. It also has the 'woosh' from the induction which isn't my cup of tea at all. I have had two TSI's, a 150 manual that mapped REVO stage 1 to about 300 but needed a Sachs organic clutch upgrade which I was never that happy with as the clutch was heavy. I bided my time and now have a fully loaded TSI DSG mapped Revo stage 1 by Paul to 300. Paul drives my van and says he loves how normal and quiet it is to drive. I am really happy with where the van is and out on the road in real world conditions, I can't imagine needing a quicker van although I might put on a Milltek cat back exhaust as I had that on my 150 manual and it sounded great. Each to their own, good luck with your own projects and wouldn't life be dull if we all had the same.

 

[roooms]

Yeah, that makes a lot of sense, Gossa. What modifications do you have to get the Stage 1 to 300 bhp? I have a Milltek cat back exhaust fitted with both resonated and non-resonated back sections available. I'm currently using the resonated and I'm happy with the sound but don't really want it any louder.

 

[coullstar]

Always the same when you move on from the simple "bolt on" mods. It soon spirals as you need to have the right supporting mods to make the most and keep it safe. Its a total rabbit hole to go down. Have done in on a few cars in the past and I try to avoid it now. Good luck though as it will be fun.

 

[Rfkdemon]

I've done Stage 2 and DSG stage 2, both of which are plenty of power for a van, even when towing my rally car. Wouldn't bother with any more as I have to be very careful not to spin the wheels even in the dry.

Mat