The "let's brainstorm how to make a piggyback work" thread

[dallas]

The problem is not the cars complex unbreakable programs, it's the lack of tuners and enthusiasts who are willing to figure this out, that leaves us newbies on the forums to figure it out on our own. Even the suppliers don't want to waste any money to offer a real turn key kit, they want us to figure it out and be their North American guinea pigs. That being said, NT Nooge, and several other guys that have the Blitz supercharger that are working hard to get the most out of this kit, and get the tuning dialed in. Sadly this is a Econo car not a Sports car.

Its funny I was just on a Genesis Coupe form and because its a 2.0 turbo, it's not much faster stock than a Yaris 0-60 in 8 seconds, Hyundai has done a great job to make it tuner friendly, they hooked up with companies like AEM and AMS to make stuff for the car, I bet in no time this platform will be over 300 hp. And at $22,000 a rear wheel drive with 200 hp, big Brembo brakes that looks like a G37 Nissan is very attrative right now.
I hope we can figure out a safe reliable way to get an honest 130 at the wheels of out the Yaris, the lack of Hp has my eyes wandering LOL

[eTiMaGo]

Originally Posted by Sabretooth

Honestly, had you thought about getting a USDM unit Thomas and trying to take it to TRD Thailand? See what they can come up with, they seemed to help you in the past about trying to sort out what Engine swaps were viable in the past.

We dont have those kind of tuning places here in the states, or at least a mainstream company that can sit there and devote time and money to try and reverse engineer it for us.

That is definitely an option, can anyone get their hands on an ECU from a salvaged car? I checked some time ago with ROCKLAND TOYOTA, the part numbers are completely different between our ECUs here and the USDM ones.

Originally Posted by PK198105

i believe the major hurdle is the ECU, its just too well protected and is not add-on friendly. what would need to be done is a interface between the ECU and the piggyback, not to "fool" the ECU but merely reroute its responses.

One of the main problem, I think, which prevents simple piggybacks like the S-AFC which modify the MAF signal, is that the ECU uses data from the AF and O2 to check on the final air/fuel ratio, and override whatever data it is getting from the MAF (fuel trim function)

Originally Posted by yaris-me

I think Toyota has engineered the car to be reliable and has built in a margin of safety for the engine. On the surface, the engine seems to have been designed for performance yet it is detuned by a margin of safety. So, I think the problem is in the ECU programming and not a piggyback. Finding a way to alter or change the programming is the way.

Yes, an ECU tweak is usually the fastest, cheapest and most warranty-friendly way to do this. But nobody yet seems to know how to do that, and it would require some pretty advanced electronics knowledge and experience, beyond the scope of this discussion.

Originally Posted by jkuchta

Reading through the Engine management section of the factory manual, there seems to be a route to add/subtract fuel and spark with an intelligent tester plugged into the OBD-II port. There is a way to also turn off the DFCO and a bunch of other things.


Anyone have access to an intelligent tester?

I think that is only for diagnostic purposes, once you return the car to normal usage it will re-adjust itself.

I checked eBay for those intelligent testers, $2000+

Originally Posted by dallas

The problem is not the cars complex unbreakable programs, it's the lack of tuners and enthusiasts who are willing to figure this out, that leaves us newbies on the forums to figure it out on our own. Even the suppliers don't want to waste any money to offer a real turn key kit, they want us to figure it out and be their North American guinea pigs. That being said, NT Nooge, and several other guys that have the Blitz supercharger that are working hard to get the most out of this kit, and get the tuning dialed in. Sadly this is a Econo car not a Sports car.

Sad but true, unfortunately. Same reason Holdener seems to have given up on the intake manifold, it'll never sell enough to be worth the trouble. But hey, we are owners and fans of the cars, we're (mostly) not stupid, we can figure this out together somehow!

Its funny I was just on a Genesis Coupe form and because its a 2.0 turbo, it's not much faster stock than a Yaris 0-60 in 8 seconds, Hyundai has done a great job to make it tuner friendly, they hooked up with companies like AEM and AMS to make stuff for the car, I bet in no time this platform will be over 300 hp. And at $22,000 a rear wheel drive with 200 hp, big Brembo brakes that looks like a G37 Nissan is very attrative right now.
I hope we can figure out a safe reliable way to get an honest 130 at the wheels of out the Yaris, the lack of Hp has my eyes wandering LOL

Yeah that Genesis coupe is gonna make some big waves in the future of import tuning in the US, beating Nissan and Toyota at their own game... But let's stay on topic