2023 MT Supra vs 2023 AT Supra

[AJRMKV]

I did a 60-130 at the track yesterday with an AT 2023 Supra and the results were surprising. I'm well aware that the AT is faster from a stop but from 60 we were more or less even until 100, and I was at the rear bumper of the AT approaching 130-135 mph.

Mods on AT: Catless DP, JB4 Map 2
Mods on MT: AA catted DP, MBRP CBE, Intake, stock tune.

these results don't really make sense to me, it seems like the AT should pull more, does anyone else have experience between AT & MT?

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[zrk]

Hard to know. JB4 car maybe pulling timing?

 

[Kolme]

Lots of variables. Octane? Manual shifting at 5500ish? jb4 problems?

 

[AJRMKV]

Hard to know. JB4 car maybe pulling timing?

I guess that's a possibility, fuel here is inconsistent. 91 octane drifts between 89 and 91, sometimes worse.

I fill up with 94 to avoid dipping below 91.

 

[AJRMKV]

Lots of variables. Octane? Manual shifting at 5500ish? jb4 problems?

I'm in the MT. I'm assuming you and ZRK are right and its a timing issue related to octane with the AT

 

[Kolme]

I'm in the MT. I'm assuming you and ZRK are right and its a timing issue related to octane with the AT

Tell that guy to get a @Jesse DaBears tune. Night and day difference.

 

[Jesse DaBears]

I guess that's a possibility, fuel here is inconsistent. 91 octane drifts between 89 and 91, sometimes worse.

I fill up with 94 to avoid dipping below 91.

91 on map 2 is real shit for timing. Car is likely a turd on 91 map 2.

 

[Sub-MkV]

That's why I run a e25-28 blend with 93oct with my piggyback. I don't even trust 93 oct alone with +4 psi.

 

[AJRMKV]

That's why I run a e25-28 blend with 93oct with my piggyback. I don't even trust 93 oct alone with +4 psi.

Unfortunately were stuck with garbage fuel in Canada. Only option is to order barrels of Ethanol, which isn't realistic.

91 on map 2 is real shit for timing. Car is likely a turd on 91 map 2.

Exactly .5-1 car more than stock. Dunno if the guy is on here but i'll send him your way next time I see him.

 

[jtsang25]

I guess that's a possibility, fuel here is inconsistent. 91 octane drifts between 89 and 91, sometimes worse.

I fill up with 94 to avoid dipping below 91.

Where are you in Canada that has 94? They got rid of 93 where I am.

 

[AJRMKV]

Where are you in Canada that has 94? They got rid of 93 where I am.

Quebec. I've seen 94 all over Ontario as well.

 

[Supra_UK_]

Misleading title.

 

[Sharocks]

Stop using Petro Canada 94.

That shit is water.

Stick to Shell 91 and add some octane booster to get to 93.

 

[AJRMKV]

Stop using Petro Canada 94.

That shit is water.

Stick to Shell 91 and add some octane booster to get to 93.

Did you test this? I did datalogging on my evo with both and had more knock with shell 91

 

[Sharocks]

Did you test this? I did datalogging on my evo with both and had more knock with shell 91

I didn't experience any knock with V Power in Toronto but I was tuning NA cars. This was also at least 10 years ago.

But my cars never ran well on PC 94 so I always went with 91 and octane booster.

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