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Author Topic: Just did a stage 2+ to my GTI, what do you think?  (Read 557 times)

Offline LuisGTI

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Just did a stage 2+ to my GTI, what do you think?
« on: December 17, 2020, 01:29:11 am »
Hello all, like the title says, I did a stage 2+ and I'm happy with the results except with the boost pressure...

Hardware:

3" Ramair Intake
3" Downpipe
Loba HPFP upgrade
Forge PCV fix
Forge DV

294hp 458nm max boost 1.45-1.5

BUT

1.4 @ 5000
1.1 @ 6000
0.9 @ 6500
0.85 @ 7000

And here's the graph... (before and after hpfp upgrade)



What's your thoughts on the tune? Like I said I'm worried about that 0.85 at revlimit although it's 0.9-1 at 6500 when I upshift
« Last Edit: December 17, 2020, 01:33:34 am by LuisGTI »

Offline rich83

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Re: Just did a stage 2+ to my GTI, what do you think?
« Reply #1 on: December 17, 2020, 08:25:33 pm »
Looks a little optimistic to me

Offline colesey

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Re: Just did a stage 2+ to my GTI, what do you think?
« Reply #2 on: December 18, 2020, 09:40:43 am »
Looks like some great gains in drivability from the hpfp / new mapping.

Offline Pudding

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Re: Just did a stage 2+ to my GTI, what do you think?
« Reply #3 on: December 18, 2020, 06:03:16 pm »
Looks a little optimistic to me

I thought the same.  ED30s make around 300hp from 1.4 bar, so I can't see a K03 making the same.



2007 ED30 | Ohlins Coilovers | Revo Map | Plus some other stuff | Is all a GTI needs :-)

Offline Pudding

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Re: Just did a stage 2+ to my GTI, what do you think?
« Reply #4 on: December 18, 2020, 06:05:36 pm »
What's your thoughts on the tune? Like I said I'm worried about that 0.85 at revlimit although it's 0.9-1 at 6500 when I upshift

Is it DSG?

You will get a boost spike after a gear change.  That's normal.

It's a tiny turbo.  That is a typical K03 plot.


2007 ED30 | Ohlins Coilovers | Revo Map | Plus some other stuff | Is all a GTI needs :-)

Offline LuisGTI

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Re: Just did a stage 2+ to my GTI, what do you think?
« Reply #5 on: December 20, 2020, 03:13:19 pm »
What's your thoughts on the tune? Like I said I'm worried about that 0.85 at revlimit although it's 0.9-1 at 6500 when I upshift

Is it DSG?

You will get a boost spike after a gear change.  That's normal.

It's a tiny turbo.  That is a typical K03 plot.

It's manual

The chiptuner said that his stage 2+ is 1.6 and 1.1 at revlimit but my turbo can't handle it, it just goes down, maybe the wastegate is defective?

Offline Pudding

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Re: Just did a stage 2+ to my GTI, what do you think?
« Reply #6 on: December 24, 2020, 04:01:53 pm »
OK, that confirms the spike then as manuals do spike more than DSG due to the bigger rev drop between gears.

ECU remaps may command certain boost levels, ignition advance and fuel pressures but at the end of the day, hardware faults and/or the ECU's component protection routines may not allow the requests to be achieved.

If you're not achieving the target boost, check the hardware.  Boost leaks, leaking dump valves, worn out or loose wastegate penny valve, incorrect wastegate tension, worn turbo, worn VVT, worn or broken engine (weak compression), incorrectly timed engine, clutch slip....the list goes on.

Software suppliers will always give you a blanket "It's your hardware" response to any kind of complaint I'm afraid, so it's time to verify that before going back to them.




2007 ED30 | Ohlins Coilovers | Revo Map | Plus some other stuff | Is all a GTI needs :-)