Smallest turbo to hit 500whp on pump gas

jamaicaLemons · 11-16-2020, 08:46 PM

Ok so I'm planning on going single turbo soon and am currently trying to figure out which turbo to go with. Basically I want to hit 500whp on 91 octane (thats all we have in salt lake) but retain the best spool possible. I know a gt3582r will hit that power, but might be a bit overkill. Does anyone suggest a different turbo?

Saif2018 · 11-17-2020, 01:31 AM

Quote:

Originally Posted by jamaicaLemons

Ok so I'm planning on going single turbo soon and am currently trying to figure out which turbo to go with. Basically I want to hit 500whp on 91 octane (thats all we have in salt lake) but retain the best spool possible. I know a gt3582r will hit that power, but might be a bit overkill. Does anyone suggest a different turbo?

91 Octane is poor fuel, you will seriously struggle to get near 500whp just using 91 Octane fuel.

jamaicaLemons · 11-17-2020, 02:09 AM

Quote:

Originally Posted by Saif2018

Quote:

Originally Posted by jamaicaLemons

Ok so I'm planning on going single turbo soon and am currently trying to figure out which turbo to go with. Basically I want to hit 500whp on 91 octane (thats all we have in salt lake) but retain the best spool possible. I know a gt3582r will hit that power, but might be a bit overkill. Does anyone suggest a different turbo?

91 Octane is poor fuel, you will seriously struggle to get near 500whp just using 91 Octane fuel.

Quote:

Originally Posted by Saif2018

Quote:

Originally Posted by jamaicaLemons

Ok so I'm planning on going single turbo soon and am currently trying to figure out which turbo to go with. Basically I want to hit 500whp on 91 octane (thats all we have in salt lake) but retain the best spool possible. I know a gt3582r will hit that power, but might be a bit overkill. Does anyone suggest a different turbo?

91 Octane is poor fuel, you will seriously struggle to get near 500whp just using 91 Octane fuel.

Didn't somebody hit 600whp with a 6466 on just pump gas, no meth? But for arguments sake let's say I would want to make 475whp. What would you recommend?

Saif2018 · 11-17-2020, 03:50 AM

Quote:

Originally Posted by jamaicaLemons

Didn't somebody hit 600whp with a 6466 on just pump gas, no meth? But for arguments sake let's say I would want to make 475whp. What would you recommend?

Have a read through this thread...

https://www.e90post.com/forums/showthread.php?t=1771082

475whp should be achievable on Stage 2 twins or a ST might be achievable on FBO car with 93oct, without E85. I don't know what the limit is on 91oct,

Fueling is a major component to performance and running 91oct alone is going to hamper it big time. Its pretty much the worst fuel you can run.

_N54 · 11-17-2020, 09:49 AM

You'll need to add meth injection on top of the 91 octane. I have the AEM kit and so far it's working great.

HKD126 · 11-18-2020, 02:00 PM

Sounds like you’re going to be unhappy with your car. That’s a lot of money for little power, even less power band, and limiting yourself on octane. Either figure out E85, meth or stick with twins.

Smgs1992 · 11-27-2020, 06:11 PM

Quote:

Originally Posted by jamaicaLemons

Didn't somebody hit 600whp with a 6466 on just pump gas, no meth? But for arguments sake let's say I would want to make 475whp. What would you recommend?

They just hit 670whp on pump gas with a 6466

_N54 · 11-28-2020, 09:44 AM

Quote:

Originally Posted by Smgs1992

Quote:

Originally Posted by jamaicaLemons

Didn't somebody hit 600whp with a 6466 on just pump gas, no meth? But for arguments sake let's say I would want to make 475whp. What would you recommend?

They just hit 670whp on pump gas with a 6466

I think that's a dangerous power level for pump gas. I'm not sure what his timing and boost level is set around, but I assume this might have been done for a dyno record on pump, but I can imagine 1 serious detonation destroying that engine.

Riceball777 · 12-02-2020, 04:52 PM

Quote:

Originally Posted by Smgs1992

They just hit 670whp on pump gas with a 6466

You cannot make that kind of power on normal 91/93 octane not even close. Realistically the safest and most power you can make on straight low octane 91 octane with no water meth injection is around 500whp. This is will all the bolt on and with a much bigger than stock turbo.

Smgs1992 · 12-02-2020, 05:54 PM

Quote:

Originally Posted by Riceball777

You cannot make that kind of power on normal 91/93 octane not even close. Realistically the safest and most power you can make on straight low octane 91 octane with no water meth injection is around 500whp. This is will all the bolt on and with a much bigger than stock turbo.

Lmao tell that to the tuner, owner and dyno. Just because you say it cant be done doesnt make it true.
Also i never said it was done on 91 octane. Owner stated it was 94 octane pump gas on a 6466 turbo 24psi no PI no Helix just stock HPFP and dual 450s. No meth no E85 no octane boosters. Never said it wasnt the safest tune either just stating that it is possible.

Tyc0 · 12-02-2020, 09:28 PM

I have rb twos and am expecting to make around 500whp on 92oct...rob said it should be possible on 21 psi which is not very high boost for these turbos, and my tuner said it might be a little bit of a stretch but he is expecting ~485

Saif2018 · 12-03-2020, 06:54 PM

Quote:

Originally Posted by Smgs1992

Lmao tell that to the tuner, owner and dyno. Just because you say it cant be done doesnt make it true.
Also i never said it was done on 91 octane. Owner stated it was 94 octane pump gas on a 6466 turbo 24psi no PI no Helix just stock HPFP and dual 450s. No meth no E85 no octane boosters. Never said it wasnt the safest tune either just stating that it is possible.

Hope the owner doesn't mind the engine grenading.

600whp+ on 91 or 93oct alone lol.

langsbr · 12-19-2020, 09:02 PM

These engines like octane and I would not try to push for a good number (despite the turbos) on 91 octane. You'd be better of with an LS based NA motor if you're trying to make a decent number with 91 octane.

Throw some E85 in to keep the motor happy and safe and be rewarded with a LOT more HP and torque.

11-16-2020, 08:46 PM	#1
jamaicaLemons Enlisted Member 17 Rep 42 Posts Drives: BMW 335i E90 6mt Join Date: Sep 2019 Location: SLC Utah iTrader: (0)	Smallest turbo to hit 500whp on pump gas Ok so I'm planning on going single turbo soon and am currently trying to figure out which turbo to go with. Basically I want to hit 500whp on 91 octane (thats all we have in salt lake) but retain the best spool possible. I know a gt3582r will hit that power, but might be a bit overkill. Does anyone suggest a different turbo?
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11-17-2020, 09:49 AM	#5
_N54 Captain 300 Rep 884 Posts Drives: 335d Join Date: Mar 2020 Location: USA iTrader: (0)	You'll need to add meth injection on top of the 91 octane. I have the AEM kit and so far it's working great. __________________ 2013 335is - sold 2011 335d
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11-18-2020, 02:00 PM	#6
HKD126 Captain 347 Rep 801 Posts Drives: 2014 335i, 2009 335xi Join Date: Jun 2016 Location: Wisconsin iTrader: (0)	Sounds like you’re going to be unhappy with your car. That’s a lot of money for little power, even less power band, and limiting yourself on octane. Either figure out E85, meth or stick with twins.
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12-02-2020, 09:28 PM	#11
Tyc0 Lieutenant 147 Rep 517 Posts Drives: BMW e92 335i Join Date: Sep 2019 Location: Oregon iTrader: (0)	I have rb twos and am expecting to make around 500whp on 92oct...rob said it should be possible on 21 psi which is not very high boost for these turbos, and my tuner said it might be a little bit of a stretch but he is expecting ~485
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12-19-2020, 09:02 PM	#13
langsbr First Lieutenant 234 Rep 317 Posts Drives: 335i Join Date: Aug 2013 Location: SC iTrader: (0)	These engines like octane and I would not try to push for a good number (despite the turbos) on 91 octane. You'd be better of with an LS based NA motor if you're trying to make a decent number with 91 octane. Throw some E85 in to keep the motor happy and safe and be rewarded with a LOT more HP and torque.
	Appreciate 0 Quote