New 2018 PP1 D1X Build Data Log

[TRP45ACP]

Good afternoon,

I just finished installing the PC stage 2 D1X kit with a 4.25" pulley. Running ID 1050's and a Fore return on e85. How does the fuel look, more specifically, does the Lambse and STFT look appropriate? In addition, I don't have an accurate boost gauge and understand the number is really a measure of resistance varying by setup. With that, is it possible to estimate boost based on the load as a fraction number (my top was 1.95)? I appreciate the input. The car is tuned by Lund as info. Also, I am close to sea level Thank you,

Log:

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[MKL_DS]

It’s richening with RPM and trims are perfect, seems fine.
I do wonder why the MAF seems pegged at 86.688. I’d expect airflow to keep increasing with RPM and a D1X.
I’m sure there are some others here who can tell you about how much boost it should be making with that pulley assuming it’s a stock motor.

 

[TRP45ACP]

Thank you. It’s my understanding, the factory maf does not read higher than 86.6. At that point it’s maxed. I am glad the trims look good as I want to make sure I am not running out of fuel.

 

[MKL_DS]

Figured as much on the MAF. As long as it has good fueling control up top it should be fine but obviously have the tuner review the logs as well.

Must be a beast.

 

[TRP45ACP]

Figured as much on the MAF. As long as it has good fueling control up top it should be fine but obviously have the tuner review the logs as well.

Must be a beast.

Gotcha. Yes, Lund reviewed them today and said they look perfect.
I am trying to get an estimate on boost. I am betting 15pi.

 

[MKL_DS]

I am trying to get an estimate on boost. I am betting 15pi.

I bet @80FoxCoupe can give you a really good idea of where it should be.

 

[TRP45ACP]

Great, thanks again.

 

[80FoxCoupe]

I bet @80FoxCoupe can give you a really good idea of where it should be.

7.65 crank with 4.25 upper, d1x at 8k engine rpm, be about 18psi

 

[TRP45ACP]

7.65 crank with 4.25 upper, d1x at 8k engine rpm, be about 18psi

Ok, great. Thank you for letting me know.

 

[SolarFlare]

What did the person you paid for tuning have to say?

 

[TRP45ACP]

Good morning- after my initial post, the tuner said the log look perfect. I was surprised to see that high of a boost number based on @80FoxCoupe response. I understand it’s simply an estimate but will most likely stay away from 8000rpm on the regular.

 

[80FoxCoupe]

Good morning- after my initial post, the tuner said the log look perfect. I was surprised to see that high of a boost number based on @80FoxCoupe response. I understand it’s simply an estimate but will most likely stay away from 8000rpm on the regular.

Surprised? Why? You are running a 950-1000hp pulley combo. Car should run 8s if you know what youre doing.

 

[TGGT]

I’m also running a d1x with a 4.25 pulley on my 19. I only see 13 psi(maybe 13.5) at 7500. I haven’t spun it to 8k but I would be surprised if boost was over 15-ish. Probably still around 900 wheel

 

[80FoxCoupe]

I’m also running a d1x with a 4.25 pulley on my 19. I only see 13 psi(maybe 13.5) at 7500. I haven’t spun it to 8k but I would be surprised if boost was over 15-ish. Probably still around 900 wheel

Need 8in crank pulley and 8500rpm!!!

 

[TRP45ACP]

Surprised, yes, thought closer to the 875 range but good to know.

I’m also running a d1x with a 4.25 pulley on my 19. I only see 13 psi(maybe 13.5) at 7500. I haven’t spun it to 8k but I would be surprised if boost was over 15-ish. Probably still around 900 wheel

That’s a good reference point. I thought it would closer to 15psi at 7800-8500 rpm.

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