TDStuart Tuning Adventure

[K4fxd]

I'm not seeing an issue with your MAF. Don't chase rabbits or you will end up in a hole.

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[markmurfie]

Atleast hpt forums is better than pcmtec. No one talks there

Meh
Being offered a paid for tune via a DM then crickets isn't much better than no one talking.

 

[tdstuart]

I'm not seeing an issue with your MAF. Don't chase rabbits or you will end up in a hole.

Can you look at this one and tell me if you think its any better? I found a lot of roush files had different breakpoint and high/low slope multipliers so I changed them. I think I also disabled the cat protection.

I changed what data its getting so hopefully it polls better.

 

[engineermike]

Looks like it might still be going in to COT, but you need to log fuel source to be sure.

 

[K4fxd]

Still going into cat protection

Load looks low, maybe bring the intake cam in faster

6% fuel on top but you really need to log more RPM to see what is going on.

 

[K4fxd]

I'd log actual load or just load.

 

[engineermike]

@K4fxd i believe his high rpm load is showing false low due to the fuel trims being high.

 

[tdstuart]

I'm not seeing an issue with your MAF. Don't chase rabbits or you will end up in a hole.

Looks like my changes didn't do much. Do you think its good enough to start tweaking the maf to get closer to 0 at higher rpm and fix the one weird spot around 650?

 

[tdstuart]

@K4fxd i believe his high rpm load is showing false low due to the fuel trims being high.

My load is also low due to whatever is wrong with the engine. Its one of the few concrete things Lund could point out that changed between old motor and new. It went from over 1.0 to around 0.87-0.92 if I remember correctly.

 

[tdstuart]

Ill make a new tune that revs to like 7,500 and with better cam values and add in the things to log you guys suggested.

 

[K4fxd]

Keep your cam at -20 to 6000 then run it to 0 at 8000. That mimics a big name tuner's curve. EX at 30 starting at 5000 this would be OP cam timing.

Do you think its good enough to start tweaking the maf to get closer to 0 at higher rpm and fix the one weird spot around 650?

do about 4 logs and average the points to get a better reading. It will have spikes that come and go

 

[tdstuart]

Cat temp protection should have been disabled for that latest log

 

[K4fxd]

Cat protection is AUF0196 set to 0

You can also set the max temp to something crazy like 10000 degrees
AUF2536

 

[K4fxd]

Cat temp protection should have been disabled for that latest log

There are other protections, 02 sensor manifold ect....

 

[tdstuart]

Alright I disabled those too. Ill get another log with some of the parameters mentioned above

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