Fueling upgrade and cross compatibility between PI, Reflex, Flex Fuel kits

[SmurfA90]

Hi All, I have a 6-port Supra with the following mods:

• CTS 4.5" downpipe
• MST V2 intake
• FTP chargepipe
• Snow Performance methanol kit
• Pro Tuning Freaks flex fuel kit
• BM3 CustomROM
• Tuned by HTE Performance.

I have recently purchased a RP Omega 65 turbo kit and now exploring fueling upgrades as well so I can do the install together. My goal is to have a reliable 600whp street Supra.

My understanding is I would need port injection w/ reflex and LPFP to achieve my goals. However, I am a bit confused at all the options available to go with. What would be the recommended "package" I should go with as I understand some reflex kits only work with certain PI kits and flex fuel kits, etc. I believe the Visconti reflex kit is out of question as they don’t integrate with "competing" flex fuel kits like the Pro Tuning Freaks version.

Appreciate if I can get some guidance on the reflex + PI + LPFP kit I need to put together to achieve my goal fueling upgrades. Also open to suggestions on my setup from some of your own builds.

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[Thraxbert]

Reflex Plus, a PI solution of your choice (I went with Remnant Performance), a tensility motorsport harness for the Reflex, the PTF ethanol kit, and one of these: Vader, Spool, PFS, or Visconti LPFP.

The wiring harness is not required, but the one that comes with the Reflex is low quality and you are likely to have issues.

 

[SmurfA90]

Reflex Plus, a PI solution of your choice (I went with Remnant Performance), a tensility motorsport harness for the Reflex, the PTF ethanol kit, and one of these: Vader, Spool, PFS, or Visconti LPFP.

The wiring harness is not required, but the one that comes with the Reflex is low quality and you are likely to have issues.

Thank you for the reply Thraxbert. Again, I think its lack of knowledge, but how would I determine what size injectors would be sufficient for my build? What are you running?

 

[shaloot]

as I understand some reflex kits only work with certain PI kits, etc. I believe the Visconti reflex kit is out of question as they integrate with "competing" flex fuel kits like the Pro Tuning Freaks version.

I think you may be referring to the fact that MHD is integrated with reflex, where BM3 is not?

reflex can work with any “PI kit” meaning the injectors, rail, pump, etc whether it’s just a spacer plate or a full intake manifold with injectors built in. Me personally, I wouldn’t use only a plate as I don’t think the injectors position allow for proper atomization. Full manifold would be the way IMO.

Seems like you’re asking about the tuning integration though. You have BM3, reflex can work with that. It can also work with MHD even moreso.
so yeah, IMO you can go ahead and buy any fueling hardware you desire at this point assuming your BM3 tuner is ok with tuning your BM3 ECU plus the reflex separately.

im still doing my research on the BM vs MHD choice myself. As the integration with MHD seems better to have. Hoping the BM3 rev 2 board solves that but it sounds like that won’t be happening any time soon.

 

[Thraxbert]

If you're @ 1050cc injector (or smaller), side-firing from a PI plate will be fine. It's not a hard and fast rule, but up to 600 or 700 HP I think a PI plate is fine. Higher than that, recommend a manifold so the injectors can fire straight down. 1050cc is good up to 1000ish (I cannot account for every fuel/boost/ethanol combo -- this is an estimate).

Also, +1 for MHD. I've been on every tuning platform and, while they all had pros and cons, MHD+ has been by far the best. Reflex integration is excellent, all the features you could want (e.g. antilag), free phone flashing and logging, no stupid DRM dongle.

 

[SmurfA90]

Thank you for the feedback. I am clear on the direction I want to head in as at some point I’ll want to do the intake manifold as well. Might as well do the fuelling upgrades once I purchase the intake.

WRT to MHD and reflex integration, it definitely seems like a more logical approach to tune on that platform. Hopefully by the time I decide to upgrade my intake manifold Rev2 might be available for BM3. I’ll also check with my tuner on this and if it’s worth sticking to BM3 or MHD for ease of tuning.

 

[SmurfA90]

Reflex Plus, a PI solution of your choice (I went with Remnant Performance), a tensility motorsport harness for the Reflex, the PTF ethanol kit, and one of these: Vader, Spool, PFS, or Visconti LPFP.

The wiring harness is not required, but the one that comes with the Reflex is low quality and you are likely to have issues.

@Thraxbert, reviving this thread as I am still scratching my head on the parts I would need:

• TMS ReFlex + Harness: https://tensilitymotorsports.com/products/tms-reflex™-harness-supra™-a9x?variant=42281902014516
• RP Gamma System Stage 1 (1050 injector): https://www.remnantperformance.com/...ma-system-for-the-a90-mkv-toyota-supra-gr-3-0
• Vader LPFP: https://www.remnantperformance.com/...ma-system-for-the-a90-mkv-toyota-supra-gr-3-0
• PTF Flex FuelKit: already purchased and installed on the car

My understanding from the TMS team is I would need to add a T or another line from the PTF flex fuel kit to Reflex to make everything work together. Would you know anything about this? Or have you done something similar? Picture reference would be amazing....

Lastly, I was originally going with the DAW UFX, but after speaking with Alec from RP the logical choice became the RP Omega 65. I made the purchase and now waiting to receive it. I hope to finalize my fueling upgrades with the Omega 65 turbo install.

 

[Thraxbert]

If you already have a flex fuel kit: every single thing about that install, except for the Continental ethanol sensor, gets removed. The Reflex replaces all of it. Do not try to kludge together your current flex fuel setup with the Reflex.

The only thing you'll need to do is plug the ethanol sensor into the Tensility harness. Boom, flex fuel through the Reflex. The Reflex box and Tensility harness does the rest with your tune.

If you still have questions, feel free to PM me and I can give you a call. I have the same setup as you're about to have.

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