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Author Topic: Nefmoto community project: Stage2 1.8t ME7.5 A4 (8E0909518AK-0003)  (Read 111216 times)
BlkSerialKilla
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That's Just The Nature Of The Beast...



Before we begin the Stage 2 project (new thread) I would like to see some reports and logs from the Stage 1 file on other cars. My car is running well, but I might be missing some drivability problems due to my short commute and heavy foot.

I would also like to discuss beforehand what is to be expected from the Stage 2 file. We will certainly need some hardware upgrades. We need to decide which parts are a good compromise of performance vs value.

What do you think?


I guess for starters a easily attainable set of larger injectors that require few to moderate amount of alterations to get working. If anyone is considering stage 2 I would even say better intercooler solution too. Other bits like ignition system and such I guess may be suggested. I'm not a pro just an amateur learning myself, others may chime in with greater suggestions too  Smiley
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nyet
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« Reply #1 on: October 30, 2014, 11:48:09 AM »

Well, there is also the question of what stage 2 is..

On the 2.7t, stage 2 means chip + exhaust, and stage 2+ means chip + dp + exhaust... neither call for injectors.

I am not familiar enough with the 1.8t tuning conventions to know what stage 2 means for 1.8t...

Any input?
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Tshirt2k
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« Reply #2 on: October 30, 2014, 12:03:20 PM »

Some stage 2's also ask for fmic and 4bar fpr.
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thelastleroy
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« Reply #3 on: October 30, 2014, 02:10:07 PM »

I think we're going to need a way to get more fuel into the engine.  We're already approaching the limit of what the stock injectors can do for duty cycle. Intercooler upgrade and full exhaust/DP would allow a lot of room for tuning. Maybe a 2.0T coil swap too (cheap enough). I heard they are the dogs dangly bits.

I cant afford most of these upgrades at the moment, hopefully someone will do the project with their car and post logs etc. I'm going to continue to refine the stage 1 file until I've saved enough to do the next upgrade properly.
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turboat
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« Reply #4 on: October 30, 2014, 03:28:41 PM »

My understanding of stage2 on a 1.8t is:
-dp (stock is tiny)
-fmic
-exhaust
-filter/cai

But that's just from reading skoda forums and could be incomplete.
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ddillenger
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« Reply #5 on: October 30, 2014, 03:33:45 PM »

My understanding of stage2 on a 1.8t is:
-dp (stock is tiny)
-fmic
-exhaust
-filter/cai

But that's just from reading skoda forums and could be incomplete.

This is true on the return system cars. Problem is, the returnless are out of fuel at 15psi-lol.

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adam-
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« Reply #6 on: October 30, 2014, 04:50:46 PM »

That is pretty much stage 2 on a 1.8t.

3" turbo back, supersize TIP, filter, FMIC.

If you're holding as much as the little K03(s) can hold, you'll run out of injector DC pretty fast.

That said, mine took 10k of solid abuse, NLS and AL on a daily basic and it never threw up, or threw a rod!  Loved that engine..

That said, the K04-064 that's in it just now is loooovely! Smiley
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SB_GLI
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« Reply #7 on: October 30, 2014, 07:40:08 PM »

This is true on the return system cars. Problem is, the returnless are out of fuel at 15psi-lol.

Could use a 4 bar fpr to get a little more out of the stock injectors, right?  That's only $40.

In my opinion, stage II would require;

downpipe at the very least, full turboback exhaust is best
better cooling (intercooler, wmi)
an upgraded TIP would be nice, but not really required.
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ddillenger
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« Reply #8 on: October 30, 2014, 08:49:37 PM »

Could use a 4 bar fpr to get a little more out of the stock injectors, right?  That's only $40.


On a normal stage2, yep. B6 being returnless and all kinda ruins that.

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KmosK04
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« Reply #9 on: October 31, 2014, 01:10:30 AM »

Stage 2 for k03s requires
-4bar fpr
-225hp 386cc injectors
-225hp maf
-fmic
-wastgate forge
1.7bar over and 1.1 limiter boost. With those you can make 250+hp
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ddillenger
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« Reply #10 on: October 31, 2014, 02:01:48 AM »

There is no need for a TT225 maf on a k03 car. Hell. There is no need for a TT225 MAF on a bolt on K04 car either. Injectors don't hurt, but you definitely don't need injectors AND a 4 bar FPR.
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turboat
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« Reply #11 on: October 31, 2014, 02:12:00 AM »

If only there was some standard that defined the different stages, like an rfc
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TijnCU
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« Reply #12 on: October 31, 2014, 02:46:55 AM »

I consider stage 2 to be all supporting mods to gain maximum performance from the stock turbo and block. The experts (not me) can tell what components are restrictive on the stock car. It's not just the finetuning in my opinion, the best recommended tuners in the Netherlands will write a car specific tune on a stock components engine (true stg 1, just software) as well to max performance. The "off the shelf chip/1 chip suits all" philosophy is not that common around here as in the US.
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littco
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« Reply #13 on: October 31, 2014, 03:52:35 AM »

In the uk the 518al which is the same as the 518ak is a return less 4bar fuel system, with in filter fpr.

Running 386cc 225bhp at 0.83 lambda will see you at around 200grams Maf ie 245bhp before they start running 100 IDC..

3" Maf isn't needed for stage 2 but decent TIP is

3" downpipe is needed,

And fmic

Main issue with stage 2 power is the timing, with higher boost levels and the poor flowing turbine housing you can easily be down to 2degrees timing at 6k

Porting the exhaust manifold helps

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fknbrkn
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« Reply #14 on: October 31, 2014, 04:28:44 AM »

stage 2 from my pov is the
4bar fpr
downpipe
fmic

with the 1.2 to 1.0 boost level

p.s. tt225 injectors are stupid idea anyway because new 550s are cheaper than used tts
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