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Author Topic: Average overall ignition timing me7.5 1.8t  (Read 2418 times)
denniss112
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Audi TT 99' | 180+HP FWD


« on: July 08, 2022, 12:25:58 PM »

I was wondering what the average ignition timing is for the 1.8t's? I see mine going as low as 1 degree whilest doing a pull.
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justinvw2646
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« Reply #1 on: July 08, 2022, 05:39:26 PM »

What fuel? What turbo?
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denniss112
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Audi TT 99' | 180+HP FWD


« Reply #2 on: July 09, 2022, 06:15:33 AM »

What fuel? What turbo?

Im in europe, so for me its called "E5 98", "RON98", "Euro 98". With a K03-052 turbo
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Blazius
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« Reply #3 on: July 10, 2022, 04:06:50 AM »

Take a look at KFZWOP... as starters. Hint you wont get close at all with pump fuel be it 100 ron or whatever if you got boosties cranked up.

People just seem to have a hard time understanding compression ratio/DCR and the fact that the sub 200 hp 1.8T's run ridicolously high CR for a turbo engine because it was all done for efficiency. Its like magic they dropped CR to 9 in the 225 HP and 240 models isnt it ?

The amount of braincells I loose in facebook groups when this topic pops up is something else really. I had someone tell me other day that 11CR is good for 650 hp and that audi engineers are joke etc., like you can put a number on CR vs hp without any other factors. I just dont get it.
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denniss112
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Audi TT 99' | 180+HP FWD


« Reply #4 on: July 10, 2022, 07:53:25 AM »

Take a look at KFZWOP... as starters. Hint you wont get close at all with pump fuel be it 100 ron or whatever if you got boosties cranked up.

People just seem to have a hard time understanding compression ratio/DCR and the fact that the sub 200 hp 1.8T's run ridicolously high CR for a turbo engine because it was all done for efficiency. Its like magic they dropped CR to 9 in the 225 HP and 240 models isnt it ?

The amount of braincells I loose in facebook groups when this topic pops up is something else really. I had someone tell me other day that 11CR is good for 650 hp and that audi engineers are joke etc., like you can put a number on CR vs hp without any other factors. I just dont get it.

I have not touched KFZWOP only KFZW, but the OP is around 26 - 34,5 degrees on max load. Whilest ZW is 6 - 12 degrees. I have honestly no clue or understanding what compression ratio actualy means, or what DCR stands for. No clue.

The car sounds and drives amazing, I was just wondering if the ignition angle was something to be cautios of or not.

The 180HP and 225 HP are both 9,5:1, I dont think there is a 240 HP model, there is a 250, but those are the VR6's. At least on the TT's that is.
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R32Dude
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« Reply #5 on: July 10, 2022, 08:18:50 AM »

Easy, get a hold of a stock map and look at all KFZW maps to compare.

Log ignition retard on all cylinders on your car and lambda.
Knock is what determines the maximum advance.

If you get no knock you can try adding a little at a time.


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Blazius
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« Reply #6 on: July 10, 2022, 11:23:27 AM »


The 180HP and 225 HP are both 9,5:1, I dont think there is a 240 HP model, there is a 250, but those are the VR6's. At least on the TT's that is.


Thats not true, 225 models such as BAM,APX etc run different pistons which have 9CR. And yes there is a 240 hp 1.8T which was the highest factory produced power , also runs the same pistons. Even the 210 hp ones run 9CR because you have to..
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fknbrkn
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mk4 1.8T AUM


« Reply #7 on: July 10, 2022, 03:26:42 PM »

I was just wondering if the ignition angle was something to be cautios of or not.

Thats brilliant for sure
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