JB4 Map 3 with Octane booster

[underdonk]

I would HIGHLY suggest a downpipe (catted or not doesn't matter) before going further and/or trying to raise the boost more. The JB4 OTS maps on the stock downpipe are a terrible combination.

This really should be the first choice for anyone wanting to modify this car, IMO.

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[Extreme Power House]

I can't comment on E85/35/50/etc. in this car, though there's plenty of evidence out there, but I will say that I've had positive results from properly measured Boostane Professional additive to fuel in other performance cars. I have two cans sitting in the garage I've been considering properly mixing into the Supra to get a bit of additional octane to see how the car handles it.

If the quality is good and consistent, it's a great add-on. If you use it, make sure you leave room for error in your map in case you get a can with lower octane than usual.

My issue with the octane booster is not the power potential but the consistency and the dangers if you get a bad can.

 

[underdonk]

I've noticed that additive boost is always inconsistent and you'd be better off on map 1. I have another piggyback(TurboTransformer) which ranges from 0.2-4 psi of boost settings. If I set it to 3 psi I'll see around 23-24 psi, If I set it at 2 psi I'll see 21-22.5 psi and if I set it to 1.6 psi I'll see 20.5-21.6 psi so I keep it at 1.6 psi plus I use 3 gallons of E85 mix with 93. I have the best catless dp(Armytrix) and a high flow filter.

Think that high flow filter does much for ya? Not challenging you on it, just curious on your thoughts.

 

[underdonk]

If the quality is good and consistent, it's a great add-on. If you use it, make sure you leave room for error in your map in case you get a can with lower octane than usual.

My issue with the octane booster is not the power potential but the consistency and the dangers if you get a bad can.

Yeah for sure. I've always used it more for things like my truck, which has a 93 tune on it, that gets taken to places that don't have 93 and I need to use it in a pinch on occasion.

 

[Sub-MkV]

Think that high flow filter does much for ya? Not challenging you on it, just curious on your thoughts.

I don't really know but was just mentioning mods in case anybody was wondering why I'm boosting too high with conservative additive boost.

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