04-12-2021, 05:32 AM | #2031 |
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try to flash his -2% tune
and reduce adv timing because they are too high |
04-12-2021, 05:42 AM | #2032 |
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Thx for that. What are you thoughts on the Eng load @ 3800, as I will still get a rich dip at 3800rpm?
Last edited by 73TORANA!; 04-12-2021 at 06:19 AM. |
04-12-2021, 06:19 AM | #2033 |
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first try the -2%, then if in the torque dip is still rich, you can try lowering engine load limits (which will be healthy since the -2% will have a bit lower engine load overall)
You can try fix it also rescaling the maf in open loop a bit better and to make it leaner through the table "Engine load compensation (MP)" in that range (lower values to make it leaner) Reduce PI% at high rpm or lower adv timing or will be even more knocky you could keep this richer tune and just remove timing where it knocks, no big difference.. i had just a quick look at the logs when i first answered, but the -2% worth a try to me |
04-12-2021, 06:32 AM | #2034 | |
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Quote:
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04-26-2021, 02:26 PM | #2035 |
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I could really use some help. I feel the car is running way too rich. I changed to the stage 2+ 4.03 tune, from the 4.02. I ran a data log on the highway with 3rd gear pulls on the onramps. Could someone take a look? I feel like the front pipe cat is getting really hot, from the smell of it. The car has a an uncatted UEL header and a Perrin intake, both were on there when I bought the car. I want to be on the track next weekend, but I don't think the current fuel mappings are going to work.
https://drive.google.com/file/d/1ukM...ew?usp=sharing https://datazap.me/u/derekbarker3gma...y?log=0&data=1 Last edited by Silver49; 04-26-2021 at 09:42 PM. |
04-26-2021, 07:40 PM | #2036 |
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please upload to datazap.me and link here ..
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04-26-2021, 09:42 PM | #2037 |
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04-26-2021, 10:43 PM | #2038 |
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yes quite rich
a maf rescaling would help |
04-27-2021, 08:36 AM | #2039 |
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So on that note, I believe my car came with both the 2.75" and 3" Perrin. Or does the size just relate to the silicone part of the intake tube? I added a picture as well. Again any help would be awesome since I didn't buy these parts. Assuming it is both, would I just use the 3" MAF scaling tables or is there a different one since it is both parts. https://photos.app.goo.gl/dSfCbhmBaUhd1i3f8 |
04-27-2021, 09:10 AM | #2040 |
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i don't know of which scaling you re referring to.
I only do custom tune or nothing, if you want help with it i can help you That intake definitely requires it if you want it to run smooth like with stock intake If you want to do by yourself with romraider, there is a maf scaling guide complete with a maf rescaling tool in the Tuning section |
04-27-2021, 06:21 PM | #2041 | |
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I updated the MAP scaling with the tables Perrin claims should be used. I believe it is someone better. I think it is still on the rich side from this new data log. I am assuming I need to do the whole MAP scaling process, that the Perrin table amounts are just not good enough. Thank you for any insight.
https://datazap.me/u/derekbarker3gma...p?log=0&data=1 Quote:
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04-28-2021, 04:26 AM | #2042 |
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MAF
not MAP and yes, you assume right |
04-30-2021, 01:39 PM | #2043 | |
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I tried scaling the MAF and took this log with a mix of city and highway driving with a 3rd gear pull on the highway. Can someone take a look and let me know if this is good. I believe it is significantly better than the Perrin MAF scaling tables. Any advice would be awesome. My plan is to have the car back on the track next Friday. Thanks
https://datazap.me/u/derekbarker3gma...=1-2-4-8-10-13 Quote:
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04-30-2021, 09:35 PM | #2044 |
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better, yes
rise a bit the value on the maf around 3.7V you should take also a log of a third gear pull full throttle from 2000 to redline |
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