Yesterday I went to my software guy to talk about a remap for my vRS. We wanted to see what is the car outputting, so hooked it up to his laptop and a couple of spins. It showed pretty large figures for a standard car - 1,4 to 1,5 bar hold boost and peak of 1,8 bar. My vRS is from the last that were made - mid 2007, BLT engine (EU4), ~13k miles on it. It only has a PD160 intake, with a standard (new) air filter and the flow through the EGR valve has been reduced, in order to remove the notorious stutter. I drive hard, so it is getting booted almost every day, so a soothed up VNT is out of question (according to me ).

According to my guy these were pretty serious figures for a non-modified motor. He said that if it is running these figures at the moment it could cope well with 1,75-1,8 bar hold boost and 2-2,1 bar peak boost. Do you think it is achievable without blowing the turbo into pieces? If not what are the biggest possible safe figures? And one more - does anybody know exactly what turbo is fitted to the later BLT engine?

I have a SPEC stage 2+ (up to 610nM) waiting under the bed, so clutch slippage is not really an issue. I plan running it on the standard DMF and wonder if it is going to be a problem?

Thanks a lot in advance!

Yup mine peaks at about 2.1 bar and holds about 1.9 ish.

Im still on the DMF with a sach clutch, Its fine, just dont boot it low down

It shouldn't be peaking to 1.8 with the stock turbo! :eek: Where did those readings come from? Generally, when a fairly stock pd130 is remapped, boost is upped from the stock 1.35 bar up to around 1.6, perhaps 1.7 if you want to live dangerously.

It shouldn't be peaking to 1.8 with the stock turbo! :eek: Where did those readings come from? Generally, when a fairly stock pd130 is remapped, boost is upped from the stock 1.35 bar up to around 1.6, perhaps 1.7 if you want to live dangerously.

We hooked it up to a VAG COM and he monitored while I was driving. It was definitely holding more than 1,4 bar boost and made the 1,8 peak for a second when I booted at 4th gear at about 2100 rpm.

I want to stay with the standard turbo for at least 30k miles more, so definitely want to keep it to the safe side.

Your car is running boost figures for a remap, and a living on the edge remap at that already.

Id say either its already mapped, in which case, you wont run anymore without it blowing up, or your readings are wrong.

As far as I am aware even on the late BLT engines, the turbo is a KKK unit, which again will melt like chocolate at 2BAR+

IIRC it was 1.82bar peak on custom-code stage 2 and also the Jabba ones at some stage, although they may have changed that down a tad with their more recent maps (which IMHO are better)

Hhmm... :confused:

I have the car from new and I saw it coming off the truck from CZ, when it had 2km total on the clock, so a remap without my knowledge is out of the question.

Again, the data comes from a VAG COM, while I was driving. If it reads slightly wrong we can have an explanation, but I doubt it. What can be wrong then? Strange.

Anyways, according to you guys the remap figures for a standard turbo shouldn't exceed 1,6 bar hold boost and 1,85 bar peak boost, right?

Can anybody tell me exactly which model turbo is fitted to a 2007 BLT engine?

Thanks!

Almost sure it is a KKK VNT17

My vrs had a mega harsh map on it which if I remem right was peaking at 1.9 bar and that was a kkk and popped LOL ah well lesson learnt

My vrs had a mega harsh map on it which if I remem right was peaking at 1.9 bar and that was a kkk and popped LOL ah well lesson learnt

Haha not surprised, and to think Jabbasport aint that far from you...........

P Torque stage 1, peaks at 25 psi and holds boost 22/23 psi

standard map peaked at 21psi and held at 18/19

Lol keV put the map in on my drive in 20mins tbh it lasted a few months but the the shaft in the turbo snapped LOL it was a laugh though!!!! Got my new hybrid coming on ties which I'm going to have mapped on the Jabba rollers properly!!!

P Torque stage 1, peaks at 25 psi and holds boost 22/23 psi

standard map peaked at 21psi and held at 18/19

But that's on the ASZ as far as I can tell. What about the BLT? I know the BLT is slightly powerful than the ASZ.

Lol keV put the map in on my drive in 20mins tbh it lasted a few months but the the shaft in the turbo snapped LOL it was a laugh though!!!! Got my new hybrid coming on ties which I'm going to have mapped on the Jabba rollers properly!!!

Thats what I did. I had a far bigger drive than you though. He gave me 220 ponies

P Torque stage 1, peaks at 25 psi and holds boost 22/23 psi

standard map peaked at 21psi and held at 18/19

type error, pls delete

P Torque stage 1, peaks at 25 psi and holds boost 22/23 psi

standard map peaked at 21psi and held at 18/19

Yeah sounds about right 1.7 bar

That's what my boost gauge reads.

Standard -

Spiked at 1.4 BAR momentarily, held at 1.25-1.3 BAR

Remapped:

Occasionally spikes at 1.7 BAR (usually goes straight to 23psi and holds there though), holds at 1.5 BAR

Thats what I did. I had a far bigger drive than you though. He gave me 220 ponies

haha im hoping to get 230 out of the new turbo, was speaking to luke and apparently its the exact same one he had on his fabia! and also its going in with the pro alloy fmic and my helix clutch!

going to fit the 312mm brakes on sunday so at least i'll be able to stop as well

Come on guys, share with me your BLT remap boost experience! I want to be sure that my remap is done right.

Come on guys, share with me your BLT remap boost experience! I want to be sure that my remap is done right.

Given the boost numbers you have posted, I'd be very careful with any remap. The KKK turbo isn't the strongest and it is quite possible to break it by being too aggressive with the map.

A couple of other questions....

What was the air temperature when the boost numbers were recorded? Cold air is denser and can provoke overboost and possibly higher held boost numbers.

Do you have a decat exhaust downpipe on the car or is the standard downpipe fitted?

J.

Standard downpipe, standard exhaust, actually the car is all standard besides a PD160 intake and slightly turned down EGR.

The temperature when we did the measures was 1-3°C, not really warm.

Here is the answer of the unanswerable question - what is the turbo on the late Fabia vRS with BLT engine - KKK BV39B 0016. I went under and got some evidence:

Edited 9 March, 200917 yr by Karaibrahim

And you believe the BLT engine is better than the ASZ?

And you believe the BLT engine is better than the ASZ?

I don't really care, but at least dyno graphs show that BLT is slightly more powerful (ca. 10 hp more).

Do you think ASZ is better and why?

Edited 9 March, 200917 yr by Karaibrahim

Probably because some came with a Garrett Turbo instead of the KKK one (I have the BLT engine)