HKS Supercharger
12-01-14, 01:03 PM
#17
Instructor
Thread Starter
Yeah something is preventing development. Surely an IS/GS solution for the 2GR-FSE would sell in reasonably numbers. Was it that Apexi just couldn't do it for some reason, or is does the engine have problems (ECU, pistons, whatever)?
That is the part I would love to know from the failed Apexi attempt. If I toss on an HKS supercharger, will I run into the same problems? At this point, I probably would only consider it with a full internals upgrade and at that price, I might as well trade for a GS-F and start tuning it instead.
That is the part I would love to know from the failed Apexi attempt. If I toss on an HKS supercharger, will I run into the same problems? At this point, I probably would only consider it with a full internals upgrade and at that price, I might as well trade for a GS-F and start tuning it instead.
The ideal situation is to be able to tune using the factory ECU. That way, the car retains everything.
Full internals might be overkill, but it really depends on how much boost one wants to run and how hard the car is beaten on. Daily racing from light to light is obviously different than only using boost occasionally.
I was able to get a reliable 450-500 Hp output from the 12:1 compression engine in my last car using stock internals, so it can definitely be done using low boost.
12-01-14, 02:00 PM
#18
Pole Position
I'm not 100% positive, but I would guess the limitations are on the tuning side. It's easy to put a piggy back ECU in there using a custom harness, but as far as I know, there is no piggy back ECU that can manage port and direct injection at the same time. Going with a complete stand alone ECU would not be practical because the factory ECU integrates so much of this car.
The ideal situation is to be able to tune using the factory ECU. That way, the car retains everything.
Full internals might be overkill, but it really depends on how much boost one wants to run and how hard the car is beaten on. Daily racing from light to light is obviously different than only using boost occasionally.
I was able to get a reliable 450-500 Hp output from the 12:1 compression engine in my last car using stock internals, so it can definitely be done using low boost.
The ideal situation is to be able to tune using the factory ECU. That way, the car retains everything.
Full internals might be overkill, but it really depends on how much boost one wants to run and how hard the car is beaten on. Daily racing from light to light is obviously different than only using boost occasionally.
I was able to get a reliable 450-500 Hp output from the 12:1 compression engine in my last car using stock internals, so it can definitely be done using low boost.
12-01-14, 03:16 PM
#19
Instructor
Thread Starter
I wouldn't hold my breath. As much as I wish this would happen, Toyota / Lexus have ECUs that have been historically difficult to hack and program.
12-01-14, 03:20 PM
#20
Instructor
Thread Starter
12-02-14, 08:44 AM
#23
Pole Position
12-03-14, 03:32 PM
#24
Instructor
Thread Starter
Not quite ... HKS has their own tuning solution that does not utilize the factory ECU. From the HKS spec sheet, they basically used a piggy back ECU with a "different program". I'm familiar with the F-CON iS, but does anyone know what the added OSC is or does?
12-03-14, 04:38 PM
#25
Pole Position
Well Modellista is a division of Toyota, and they are reselling the Tom's supercharger for the Mark X...
12-10-14, 04:11 PM
#26
Instructor
Thread Starter
12-11-14, 04:04 PM
#27
That site says it's ¥583,958, using a currency converter that's about $4,906.58 USD. Can that really be right?
12-12-14, 09:36 AM
#28
Instructor
Thread Starter
Price for parts sound about right for some tubing, a single compressor and ECU. It's the custom fab and tune that jacks the price up. And this is also assuming power levels are not outrageous enough to require additional supporting mods.
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Ltaboso
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