HUGE POWER GAINS with 3 stage manifold and mafless tune, 0-60 in mid 5’s

neilvan · 06-07-2021, 03:09 PM

Yep its a direct bolt in/plug in replacement. Off hand no but a quick google search (or even on this site) and it should pop right up

hassmaschine · 06-07-2021, 04:07 PM

Quote:

Originally Posted by Skoidat69

Do you know if your brother's IAT fits where my MAF is now? I duno if I want to mess with the IAT/MAF relocation. You wouldn't by chance know that part number for his IAT?

you don't have to relocate it. the IAT is a direct replacement for the MAF. same plug and mounting location.

Skoidat69 · 06-07-2021, 04:50 PM

Quote:

Originally Posted by hassmaschine

Quote:

Originally Posted by Skoidat69

Do you know if your brother's IAT fits where my MAF is now? I duno if I want to mess with the IAT/MAF relocation. You wouldn't by chance know that part number for his IAT?

you don't have to relocate it. the IAT is a direct replacement for the MAF. same plug and mounting location.

Quote:

Originally Posted by hassmaschine

Quote:

Originally Posted by Skoidat69

Do you know if your brother's IAT fits where my MAF is now? I duno if I want to mess with the IAT/MAF relocation. You wouldn't by chance know that part number for his IAT?

you don't have to relocate it. the IAT is a direct replacement for the MAF. same plug and mounting location.

The plug for my MAF seems different than the IAT.. they are found on Canadian and Euro cars, right? I'm having trouble finding a part number ..

hassmaschine · 06-07-2021, 05:28 PM

it's definitely the same plug. What IAT are you looking at? neither of those are it.

Skoidat69 · 06-07-2021, 05:34 PM

Quote:

Originally Posted by hassmaschine

it's definitely the same plug. What IAT are you looking at? neither of those are it.

I can't find the part because search engines/real oem default to US market bmws..

Those are MAFs like mine that's in the car now

I found this:

hassmaschine · 06-07-2021, 06:12 PM

That looks like it. I don't remember the exact part # I used.

I'd try it with your MAF first though, to see if it's for you, before swapping to just the IAT.

Skoidat69 · 06-09-2021, 09:22 AM

Quote:

Originally Posted by hassmaschine

That looks like it. I don't remember the exact part # I used.

I'd try it with your MAF first though, to see if it's for you, before swapping to just the IAT.

I'm running to it with a MAF now and love it.. Now I want to see if it gets better with IAT..

marvinstockman · 06-09-2021, 09:40 AM

From Dr. Google:

The ideal (theoretical) air-fuel ratio, for a complete combustion, is called stoichiometric air-fuel ratio. For a gasoline (petrol) engine, the stoichiometric air-fuel ratio is around 14.7:1. ... For example, for a gasoline engine, an AFR of 16.5:1 is lean and 13.7:1 is rich.

e90yyc · 06-09-2021, 11:31 AM

Quote:

Originally Posted by marvinstockman

Without a MAF, you must be running rich. What is the AFR?

Quote:

Originally Posted by marvinstockman

Again, what is the AFR? Below 14.7 and you're running rich.

Quote:

Originally Posted by marvinstockman

My point is that if you're getting more power, you're probably running rich, especially if you're in open loop. AFR can be recording at various RPM's and throttle positions, even with something as simple as the Torque App Pro.

My final point is that there's no free lunch! Anyway, I'm just asking a question, which hasn't been answered. Do I really care, not really.

But you clearly do care…

Quote:

Originally Posted by marvinstockman

Hass, 13.5 is running rich.

Modern cars try and stay at 14.7 under most all conditions to reduce emissions.

Quote:

Originally Posted by marvinstockman

From Dr. Google:

The ideal (theoretical) air-fuel ratio, for a complete combustion, is called stoichiometric air-fuel ratio. For a gasoline (petrol) engine, the stoichiometric air-fuel ratio is around 14.7:1. ... For example, for a gasoline engine, an AFR of 16.5:1 is lean and 13.7:1 is rich.

I’m not trying to be a d*ck man, but nobody is making you run this (free) tune. I don’t think hassmaschine needs a lesson on AFR…

Quote:

Originally Posted by TunafishE93

Free tunes are the best tunes!

^^^^^^

Quote:

Originally Posted by nsjames

hassmaschine has done every n52 owner a great service, and anyone that doesn't like how it's done can bugger off and do their own.

^^^^^^

neilvan · 06-09-2021, 11:46 AM

Quote:

Originally Posted by marvinstockman

From Dr. Google:

The ideal (theoretical) air-fuel ratio, for a complete combustion, is called stoichiometric air-fuel ratio. For a gasoline (petrol) engine, the stoichiometric air-fuel ratio is around 14.7:1. ... For example, for a gasoline engine, an AFR of 16.5:1 is lean and 13.7:1 is rich.

Ideal for complete combustion yes. Ideal for performance, safety and fuel economy no.

I mean considering thats what tuners and car manufacturers have NOT been doing since the early 1900s I'm tempted to say that they are right.

I think this has to be some trolling regardless

hassmaschine · 06-09-2021, 11:51 AM

Quote:

Originally Posted by marvinstockman

From Dr. Google:

The ideal (theoretical) air-fuel ratio, for a complete combustion, is called stoichiometric air-fuel ratio. For a gasoline (petrol) engine, the stoichiometric air-fuel ratio is around 14.7:1. ... For example, for a gasoline engine, an AFR of 16.5:1 is lean and 13.7:1 is rich.

You're still here arguing about this? Great, you can regurgitate a Wikipedia article. That doesn't mean you run stoich at full load. The stock tune doesn't even do that. There's nothing further to discuss here, you don't have a full understanding of this subject or have any idea how the computer controls fueling.

It's definitely not running in open loop either. Completely the opposite - it wouldn't work *at all* in open loop without the MAF.

marvinstockman · 06-09-2021, 01:25 PM

hassmachine, you certainly told me!

My point was, from the beginning, is that there is no free lunch.

hassmaschine · 06-09-2021, 02:02 PM

Oh, gee, here you go - the *STOCK* AF curve for the 330i. I guess BMW doesn't know what they're doing either?

Note the fuel dumping near redline. that is intended by BMW - to cool the cats. it *loses* power there.. lol

marvinstockman · 06-09-2021, 03:33 PM

Are posting results at WOT?

See link:

https://help.summitracing.com/app/an...2Ffuel-mixture

hassmaschine · 06-09-2021, 04:28 PM

uh, yes. I've said that like 3 times and posted the actual maps. Normal load/cruise maps are not touched (the OE tune typically runs in the 14.5-15.1 range).

Your own link agrees with everything I've said so far. What exactly is your point again? lol

marvinstockman · 06-09-2021, 07:40 PM

I guess I have no point, LOL!

Dag_BMW_E90 · 06-23-2021, 03:27 AM

Hello everyone. I have a bmw e90 325i n52b30 msv70 now I have 258 hp in 3 stage disa / I want to raise the monost, you tell me I'm from russia. I speak English badly and use google translator.

E92_William · 06-23-2021, 06:13 AM

Quote:

Originally Posted by Dag_BMW_E90

Hello everyone. I have a bmw e90 325i n52b30 msv70 now I have 258 hp in 3 stage disa / I want to raise the monost, you tell me I'm from russia. I speak English badly and use google translator.

If you already have the manifold with working valves then just go to the bimmerlabs website and follow the steps or look up on YouTube the bimmerlabs 330i tune diy that should show the steps one by one visually

Dag_BMW_E90 · 06-23-2021, 07:25 AM

thank you very much for your reply
I already have a tune of 258 hp, can I still increase the power?

hassmaschine · 06-23-2021, 10:52 AM

On a completely stock engine, maybe a little, but it's not going to be +30hp or anything. The best part of a full tune is for improved driving characteristics (better responsiveness, no soft limiter, better torque, etc). and maybe another 5-10hp

Dag_BMW_E90 · 06-24-2021, 02:40 AM

Can you help me with this? I have already removed the cat and there is a sports exhaust manifold.

Dag_BMW_E90 · 06-24-2021, 02:57 AM

at eurocarfan100
the car rides very well 0-60 what can be done to achieve the same results or get closer to it ?

06-07-2021, 03:09 PM	#67
neilvan Major 858 Rep 1,363 Posts Drives: 09 E90 335i M-Sport 6MT RWD Join Date: Nov 2017 Location: Ontario, Canada iTrader: (0) Garage List 2007 BMW E61 530xi [0.00] 1993 Mazda Miata [0.00] 2009 BMW E90 335i [0.00]	Yep its a direct bolt in/plug in replacement. Off hand no but a quick google search (or even on this site) and it should pop right up
	Appreciate 0 Quote

06-07-2021, 05:28 PM	#70
hassmaschine Major General 3973 Rep 7,215 Posts Drives: "NBO" 330i Join Date: Jun 2014 Location: earth iTrader: (0)	it's definitely the same plug. What IAT are you looking at? neither of those are it.
	Appreciate 0 Quote

06-07-2021, 06:12 PM	#72
hassmaschine Major General 3973 Rep 7,215 Posts Drives: "NBO" 330i Join Date: Jun 2014 Location: earth iTrader: (0)	That looks like it. I don't remember the exact part # I used. I'd try it with your MAF first though, to see if it's for you, before swapping to just the IAT.
	Appreciate 0 Quote

06-09-2021, 09:40 AM	#74
marvinstockman Major 399 Rep 1,078 Posts Drives: 2011 BMW 328i Join Date: Aug 2015 Location: Rockville, MD iTrader: (0)	From Dr. Google: The ideal (theoretical) air-fuel ratio, for a complete combustion, is called stoichiometric air-fuel ratio. For a gasoline (petrol) engine, the stoichiometric air-fuel ratio is around 14.7:1. ... For example, for a gasoline engine, an AFR of 16.5:1 is lean and 13.7:1 is rich.
	Appreciate 0 Quote

06-09-2021, 01:25 PM	#78
marvinstockman Major 399 Rep 1,078 Posts Drives: 2011 BMW 328i Join Date: Aug 2015 Location: Rockville, MD iTrader: (0)	hassmachine, you certainly told me! My point was, from the beginning, is that there is no free lunch.
	Appreciate 0 Quote

06-09-2021, 02:02 PM	#79
hassmaschine Major General 3973 Rep 7,215 Posts Drives: "NBO" 330i Join Date: Jun 2014 Location: earth iTrader: (0)	Oh, gee, here you go - the STOCK AF curve for the 330i. I guess BMW doesn't know what they're doing either? Note the fuel dumping near redline. that is intended by BMW - to cool the cats. it loses power there.. lol Attached Images
	Appreciate 1 stilesg5719.50 Quote

06-09-2021, 03:33 PM	#80
marvinstockman Major 399 Rep 1,078 Posts Drives: 2011 BMW 328i Join Date: Aug 2015 Location: Rockville, MD iTrader: (0)	Are posting results at WOT? See link: https://help.summitracing.com/app/an...2Ffuel-mixture
	Appreciate 0 Quote

06-09-2021, 04:28 PM	#81
hassmaschine Major General 3973 Rep 7,215 Posts Drives: "NBO" 330i Join Date: Jun 2014 Location: earth iTrader: (0)	uh, yes. I've said that like 3 times and posted the actual maps. Normal load/cruise maps are not touched (the OE tune typically runs in the 14.5-15.1 range). Your own link agrees with everything I've said so far. What exactly is your point again? lol
	Appreciate 1 e90yyc2425.00 Quote

06-09-2021, 07:40 PM	#82
marvinstockman Major 399 Rep 1,078 Posts Drives: 2011 BMW 328i Join Date: Aug 2015 Location: Rockville, MD iTrader: (0)	I guess I have no point, LOL!
	Appreciate 1 hassmaschine3972.50 Quote

06-23-2021, 03:27 AM	#83
Dag_BMW_E90 New Member 0 Rep 12 Posts Drives: BMW e90 Join Date: Oct 2018 Location: California iTrader: (0)	Hello everyone. I have a bmw e90 325i n52b30 msv70 now I have 258 hp in 3 stage disa / I want to raise the monost, you tell me I'm from russia. I speak English badly and use google translator.
	Appreciate 0 Quote

06-23-2021, 07:25 AM	#85
Dag_BMW_E90 New Member 0 Rep 12 Posts Drives: BMW e90 Join Date: Oct 2018 Location: California iTrader: (0)	thank you very much for your reply I already have a tune of 258 hp, can I still increase the power?
	Appreciate 0 Quote

06-23-2021, 10:52 AM	#86
hassmaschine Major General 3973 Rep 7,215 Posts Drives: "NBO" 330i Join Date: Jun 2014 Location: earth iTrader: (0)	On a completely stock engine, maybe a little, but it's not going to be +30hp or anything. The best part of a full tune is for improved driving characteristics (better responsiveness, no soft limiter, better torque, etc). and maybe another 5-10hp
	Appreciate 0 Quote

06-24-2021, 02:40 AM	#87
Dag_BMW_E90 New Member 0 Rep 12 Posts Drives: BMW e90 Join Date: Oct 2018 Location: California iTrader: (0)	Can you help me with this? I have already removed the cat and there is a sports exhaust manifold.
	Appreciate 0 Quote

06-24-2021, 02:57 AM	#88
Dag_BMW_E90 New Member 0 Rep 12 Posts Drives: BMW e90 Join Date: Oct 2018 Location: California iTrader: (0)	at eurocarfan100 the car rides very well 0-60 what can be done to achieve the same results or get closer to it ?
	Appreciate 0 Quote