MHD+ for Supra and Gen 2 B58

[Timmy_Jones]

you don't NEED to reflash. but you should reset your trans adaptations after flashing XHP

Thanks! Will look through the MHD User Guide...I don't recall seeing that as an option when I did the multi-map

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[Twisted Tuning]

Thanks! Will look through the MHD User Guide...I don't recall seeing that as an option when I did the multi-map

trans adaptations are in XHP.

 

[ColonelAdama]

Adam was able to run e50 on stock HPFP, but there were very limited margins for safety and reliability, and he had to max out the HPFP and run lean to get there.

Hey hey... I've got most of them with HPFP MSV <105° (85%) and injectors <85% and under 13 afr

Haven't seen many do E50 stock fueling better than I have. Anyone post up a log to prove me wrong. https://norcalmotorsports.org/logapp/share.html?t=3c1dd62056a8ed21831d13e6

generally a 700nm torque limit keeps hpfp happy, you can push to 725nm but may have occasional pressure drops but not a crash. There are some injector and hpfp tables to adjust to get to this point that OTS doesn't change at all (rail pressures, injection window, hpfp efficiency, lpfp duty, etc)

 

[MavJ]

https://datazap.me/u/j-jay

Would I be correct in analyzing the logs and concluding that the OTS mhd map sets the boost to max at 2500ish rpm?

This tune feels very on and off. Hits hard around 2500 until 5000ish rpm. In fact, when holding full throttle the car feels imbalanced towards the rear. I certainly can shift through the gears quickly and accelerate tremendously fast. I don’t enjoy waiting on neutral throttle to straighten up then hit a wall of power.

Very different from the stock tune which feels more progressive and requires more shifting to keep the rpm up and pull more at the top end. I can apply throttle earlier and overall I think my times are faster.

Maybe this is a driving and shifting style issue?

Thanks for any insights.

 

[Twisted Tuning]

https://datazap.me/u/j-jay

Would I be correct in analyzing the logs and concluding that the OTS mhd map sets the boost to max at 2500ish rpm?

This tune feels very on and off. Hits hard around 2500 until 5000ish rpm. In fact, when holding full throttle the car feels imbalanced towards the rear. I certainly can shift through the gears quickly and accelerate tremendously fast. I don’t enjoy waiting on neutral throttle to straighten up then hit a wall of power.

Very different from the stock tune which feels more progressive and requires more shifting to keep the rpm up and pull more at the top end. I can apply throttle earlier and overall I think my times are faster.

Maybe this is a driving and shifting style issue?

Thanks for any insights.

Based on one of the logs. You can see the tune is still fairly progressive by how the boost is ramped up over the rpm range.

There is generally a larger torque hit down low on most stock turbo tune that assist in making the car faster for the fall off up top beyond a certain point.


If the tune feels on/off or you just don't like the torque profile of the ots map. Town look at getting a custom tune.

 

[ColonelAdama]

https://datazap.me/u/j-jay

Would I be correct in analyzing the logs and concluding that the OTS mhd map sets the boost to max at 2500ish rpm?

This tune feels very on and off. Hits hard around 2500 until 5000ish rpm. In fact, when holding full throttle the car feels imbalanced towards the rear. I certainly can shift through the gears quickly and accelerate tremendously fast. I don’t enjoy waiting on neutral throttle to straighten up then hit a wall of power.

Very different from the stock tune which feels more progressive and requires more shifting to keep the rpm up and pull more at the top end. I can apply throttle earlier and overall I think my times are faster.

Maybe this is a driving and shifting style issue?

Thanks for any insights.

its knocking, get a custom tune

 

[MavJ]

Based on one of the logs. You can see the tune is still fairly progressive by how the boost is ramped up over the rpm range.

There is generally a larger torque hit down low on most stock turbo tune that assist in making the car faster for the fall off up top beyond a certain point.


If the tune feels on/off or you just don't like the torque profile of the ots map. Town look at getting a custom tune.

Could the issue then be the throttle mapping and response?

Thanks!

 

[razorlab]

The OTS maps are ridiculously over amped with throttle mapping. Makes the parking lot bois and cut it up crowd happy.

 

[Bug2th]

so I’m having an unlock tomorrow and thinking the MHD+ route. I guess I’ll need the logging option but if using your online tuning tool should I forget the ots maps or are they a good starting point?

The OTS maps are ridiculously over amped with throttle mapping. Makes the parking lot bois and cut it up crowd happy.

 

[jmikes]

so I’m having an unlock tomorrow and thinking the MHD+ route. I guess I’ll need the logging option but if using your online tuning tool should I forget the ots maps or are they a good starting point?

There's a lot of users on here that have run OTS maps for years and have been extremely happy. That's the route I'm going today when I unlock, gonna run OTS until I decide if a custom tune is actually necessary for my needs.

I have also heard like Razorlab said that the throttle mapping is kind of ridiculous on the OTS maps at times.

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