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I agree. Maybe just getting a shop to bore out the stock TB will be good. Also, maybe somehow change the circuitry of the TB. We did switch the a few of the components, but nothing helped. Maybe I just have to look into more.
Steve from E-Tunez told me that their go to is an overbored TSX TB (K24A2 06-08 / 64mm+4mm). It has the same current with a good idle, no codes thrown.
 

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Discussion Starter #22
Steve from E-Tunez told me that their go to is an overbored TSX TB (K24A2 06-08 / 64mm+4mm). It has the same current with a good idle, no codes thrown.
awesome, I'll look into that.
 

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It's not an issue that Hondata can fix. It's a circuitry issue. The IC that controls the TB motor is rated for 5A. The stock TB pulls 4.9A which is obvs within spec. Now the ZDX TB pulls 10.4A on that same circuit that's only rated for 5A, which is twice as much current (NOT GOOD).

After reading into this more, I'm really in awe that anyone runs them. I'm no electrical engineer, but that just seems like it's asking for electrical gremlins to run the larger TB. Especially, like you're saying, the juice just isn't worth the squeeze. The gains just aren't there for the potential issues it introduces.

This is good information. I also ran across this article on Hondata:


There are a few folks that replaced TB motor and claim to have no issues. Whether the motor might burn out overtime, who knows.

For anyone running a positive displacement blower, this is not just a couple ponies. Its a difference of 25-30hp and around 20tq.

I have one of these J37s sitting around, but I might look a K-Tuned as well. There's lot's of conversation on other forums about switching out the motor from the OEM to get the gremlins out of the way.
 
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