Stinger and WMI.

[Terry@BMS]

If we were able to increase timing advance through other means I bet we would see greater results, but that’s assuming that we aren’t already pretty close to MBT as it is.

We are. No significant gains to be had with more timing and flow through the factory turbos is maxed out as well. So platform is more or less capped until larger turbos become more popular.

 

[cncBilly]

We are. No significant gains to be had with more timing and flow through the factory turbos is maxed out as well. So platform is more or less capped until larger turbos become more popular.

So does that mean 11.5's is the best we can expect?

 

[Terry@BMS]

So does that mean 11.5's is the best we can expect?

No because weight can always be removed, launch improved, track conditions improved, etc. I'm sure someone will hit 10s stock turbo sooner or later when they take everything seriously enough. But power is likely capped at 475-500whp stock turbo fully modified.

 

[Yaro]

I've seen a few get no gains or lose power with 50/50 wmi. Would like to see more ecu tunes piggy combos with wmi. I think lap3 has a few but gains and times still not standout.

Thats what I've seen with JB4. With 50/50 mixture we had drop in power / torque.

 

[Yaro]

With many of the other fully tunable platforms you can add timing in the tune to take better advantage of WMI. On the FA20DIT and the LNF we often add about 15-16 extra degrees of advance over normal pump gas because we can usually get away with it as a result of the increased octane and reduced air temps.

With the Stinger, not being able to add more advance in the tune, and already being able to run maximum airflow efficiency on high octane without WMI, all we can really benefit from is whatever added advance Kia has set based on the lower IAT. I bet it’s not much.

If we were able to increase timing advance through other means I bet we would see greater results, but that’s assuming that we aren’t already pretty close to MBT as it is.

As I understood. There is no point to add timing at peak power. I tried to add timing with Lap3, but power didn't increase.

 

[Toddasaurus]

Those of us who have limits on octane can find WMI to be very useful.

We are. No significant gains to be had with more timing and flow through the factory turbos is maxed out as well. So platform is more or less capped until larger turbos become more popular.

I suspect big turbo upgrades haven't become popular for a couple reasons...

1 - the stock tranny doesn't seem to be able to handle the extra torque/HP of a bigger turbo setup.
2 - tuning hasn't matured enough to make a big turbo setup appealing. That is, you can't really run big turbos/big boost without super high octane (ie race fuel and/or WMI).

 

[cncBilly]

Those of us who have limits on octane can find WMI to be very useful.
I suspect big turbo upgrades haven't become popular for a couple reasons...

1 - the stock tranny doesn't seem to be able to handle the extra torque/HP of a bigger turbo setup.
2 - tuning hasn't matured enough to make a big turbo setup appealing. That is, you can't really run big turbos/big boost without super high octane (ie race fuel and/or WMI).

What are your examples of the tranny not being able to handle the extra torque/hp?

 

[Toddasaurus]

What are your examples of the tranny not being able to handle the extra torque/hp?

A pure turbo stinger first running into shifting problems, then a blown transmission....

Stinger JB4 Pure Hyrid Turbo Testing - N54Tech.com - International Turbo Racing Discussion

Very difficult to find good 1/4 mile time info on Stingers/G70's running swapped turbos. Usually see a few dyno charts, maybe a couple 1/4 times (albeit slow ones) and then nothing. My theory: tranny can't handle it, so stories touting big HP fade away pretty quickly.

 

[Tonkabob]

A pure turbo stinger first running into shifting problems, then a blown transmission....

Stinger JB4 Pure Hyrid Turbo Testing - N54Tech.com - International Turbo Racing Discussion

Very difficult to find good 1/4 mile time info on Stingers/G70's running swapped turbos. Usually see a few dyno charts, maybe a couple 1/4 times (albeit slow ones) and then nothing. My theory: tranny can't handle it, so stories touting big HP fade away pretty quickly.

This pure turbo car was also brake snipped and the owner thought that was a factor on his trans problems.

 

[cncBilly]

A pure turbo stinger first running into shifting problems, then a blown transmission....

Stinger JB4 Pure Hyrid Turbo Testing - N54Tech.com - International Turbo Racing Discussion

Very difficult to find good 1/4 mile time info on Stingers/G70's running swapped turbos. Usually see a few dyno charts, maybe a couple 1/4 times (albeit slow ones) and then nothing. My theory: tranny can't handle it, so stories touting big HP fade away pretty quickly.

Definitely an interesting side bar to keep an eye on. Cheers