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      08-07-2022, 12:34 AM   #177
MOD.Works
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Here is a comparison of N54 intake and S54 airbox. WOT done same place and exhaust setting. Flap closed.
The weather was also similar for both WOTs.

Even though I have a slightly bad desing S54 airbox, it still beats the N54 Intake.
I should have run the S54 with the airbox also with the exhaust flap open Log.
I noticed today that with the exhaust flap open, the N54 intake gets better results if I run the flap open for a longer time. At first I thought that the car runs worse with the flap closed. I was wrong about that.

Blue= N54 intake
Green= S54 airbox.


Last edited by MOD.Works; 08-07-2022 at 01:18 AM..
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      08-07-2022, 06:18 AM   #178
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Good stuff!!
More torque throughout the range.
I wonder why the n54 intake makes more power over 7000rpm tho? Is that a priority for you since you've got 7500rpm redline?

When you say the exhaust flap was closed, do you mean "not permanently stuck open"? I.e. normal operation - close at low rpm, open at high rpm?
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      08-07-2022, 12:50 PM   #179
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Quote:
Originally Posted by tree233 View Post
Good stuff!!
More torque throughout the range.
I wonder why the n54 intake makes more power over 7000rpm tho? Is that a priority for you since you've got 7500rpm redline?

When you say the exhaust flap was closed, do you mean "not permanently stuck open"? I.e. normal operation - close at low rpm, open at high rpm?
Usually the 7500RPM limiter is used with the N54 intake. It also works well with the S54 airbox.



I made a new custom exhaust with an N54 muffler. The flap bypasses the muffler. You can see it in the Link below.

https://www.1addicts.com/forums/show...&postcount=273


When I installed a new exhaust in my car. The car felt slower when the flap was open. I also made a Log and it was slightly lower MAF values ​​than flap closed.
I thought that the exhaust is too big in diameter, so I made all LOGs after that with the flap was closed.


Today I got a better result with the flap was open. You can read about it here. There is also a comparison of the N54 intake with the flap open and closed.

https://www.e90post.com/forums/showp...6&postcount=25

I think I would have gotten a better result with the S54 airbox if I had done the Log the same way I did today.

Last edited by MOD.Works; 08-07-2022 at 01:09 PM..
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      02-02-2023, 08:37 AM   #180
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MOD.Works Have you had a chance to do any more testing between your S54, N54, and 3IM intake manifolds? Or make any updates to the S54 intake manifold?
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      02-03-2023, 06:30 AM   #181
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Quote:
Originally Posted by spidertri View Post
MOD.Works Have you had a chance to do any more testing between your S54, N54, and 3IM intake manifolds? Or make any updates to the S54 intake manifold?
I have to wait more than three months. It's a little slippery now.
But the intake temperature would be suitably cool now.






I would have to get some minor changes to the dme maps. That I could do more experiments.
I have to find some other way to do this. Because I can't get any contact from StageFB.
I don't understand why they stopped contacting me. I have not spoken ill of them or otherwise done wrong. I would have paid for changes to the maps. And I even bought a new n52 tune from them. They didn't deliver it. Paypal returned the money.
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      02-03-2023, 11:22 AM   #182
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Quote:
Originally Posted by MOD.Works View Post
I would have to get some minor changes to the dme maps. That I could do more experiments.
I have to find some other way to do this. Because I can't get any contact from StageFB.
I don't understand why they stopped contacting me. I have not spoken ill of them or otherwise done wrong. I would have paid for changes to the maps. And I even bought a new n52 tune from them. They didn't deliver it. Paypal returned the money.
I think 22RPD can help, might want to ask 303bmw about them, he is a vendor of their n52/n51 tunes.
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      02-03-2023, 11:42 AM   #183
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Quote:
Originally Posted by mike5124 View Post
I think 22RPD can help, might want to ask 303bmw about them, he is a vendor of their n52/n51 tunes.
I checked the 22RPD website earlier and there was a note that only MSV70 dme. I have an MSV80.
StageFB tune was really easy to flash with their tool.

I would like to flash remotely or I can do it myself.
I don't want or can't send dme to the shop and wait several weeks.
I'm in Europe.
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      02-03-2023, 12:05 PM   #184
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Quote:
Originally Posted by MOD.Works View Post
I checked the 22RPD website earlier and there was a note that only MSV70 dme. I have an MSV80.
StageFB tune was really easy to flash with their tool.

I would like to flash remotely or I can do it myself.
I don't want or can't send dme to the shop and wait several weeks.
I'm in Europe.
Here's his website, pretty sure they tune both MSV70, MSV80, and offer digital delivery of the tune so you can flash it yourself. https://bavautoparts.com/products/22...43603123994851
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      02-03-2023, 01:11 PM   #185
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Quote:
Originally Posted by mike5124 View Post
Here's his website, pretty sure they tune both MSV70, MSV80, and offer digital delivery of the tune so you can flash it yourself. https://bavautoparts.com/products/22...43603123994851
Thanks for the link. I need to ask them for more details.
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      02-04-2023, 01:18 AM   #186
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Quote:
Originally Posted by MOD.Works View Post
I have to wait more than three months. It's a little slippery now.
But the intake temperature would be suitably cool now.






I would have to get some minor changes to the dme maps. That I could do more experiments.
I have to find some other way to do this. Because I can't get any contact from StageFB.
I don't understand why they stopped contacting me. I have not spoken ill of them or otherwise done wrong. I would have paid for changes to the maps. And I even bought a new n52 tune from them. They didn't deliver it. Paypal returned the money.
I managed to get a reply from Bob end of last week about a tune update and it looks like they have parted ways with the company that sells the iFlash software used for the N52 tunes. That means I have to wait for a new software solution before I can get any of my file revisions updated. It also means I have no way to flash back to stock!

StageFP have been pretty good to me over the years I have had my car but the customer service the last couple of years has gradually got worse and worse. I guess they have grown too quickly for the team they have. Not having software that supports the N52 and no guaranteed date to rectify it may be the final straw and the catalyst to move to a 22RPD tune. 22RPD seem to have great reviews and be getting same power as Bob at StageFP
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      02-04-2023, 02:20 AM   #187
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Quote:
Originally Posted by jonwilli View Post
I managed to get a reply from Bob end of last week about a tune update and it looks like they have parted ways with the company that sells the iFlash software used for the N52 tunes. That means I have to wait for a new software solution before I can get any of my file revisions updated. It also means I have no way to flash back to stock!

StageFP have been pretty good to me over the years I have had my car but the customer service the last couple of years has gradually got worse and worse. I guess they have grown too quickly for the team they have. Not having software that supports the N52 and no guaranteed date to rectify it may be the final straw and the catalyst to move to a 22RPD tune. 22RPD seem to have great reviews and be getting same power as Bob at StageFP

This reason sounds reasonable.
Last summer everything worked really well with StageFB.
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      02-09-2023, 08:06 AM   #188
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can't he just bench tune the dme?
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      03-11-2023, 05:44 PM   #189
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Let me know if there is still help needed with this.
I'd love to help automate the generation of the maps. We can do that with wideband data and fuel trim data to rebuild the airflow tables. Just need good logs
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      03-14-2023, 02:24 PM   #190
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Quote:
Originally Posted by MOD.Works View Post
I checked the 22RPD website earlier and there was a note that only MSV70 dme. I have an MSV80.
StageFB tune was really easy to flash with their tool.

I would like to flash remotely or I can do it myself.
I don't want or can't send dme to the shop and wait several weeks.
I'm in Europe.
22RPD absolutely does msv80 remote and ecu exchange.
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      05-24-2023, 10:21 PM   #191
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Hey guys, 22RPD vendor here.

22RPD can remote tune both MSV70 and MSV80, they used to not do ECU exchange on MSV80, which needs to be updated on website.

22RPD already tuned an N52 with a cut intake manifold which is running well. Customer plans on putting it on the dyno at some point.

Here's a video of the car running
https://youtu.be/JNgG4KFn5xs

Here's a link to the tune (Stage 1 if headers are not installed)
https://bavautoparts.com/products/22...0-stage-2-tune

If there is demand, 22RPD will be developing an adapter plate and optimized velocity stacks for the N52/N51. I will have them on my car if development starts.

I don't check forums too often anymore, if anyone needs any help or has questions you can DM me on Instagram at rai_n52
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      05-26-2023, 03:42 AM   #192
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Quote:
Originally Posted by Raimund View Post
22RPD already tuned an N52 with a cut intake manifold which is running well.
How does it idle? And how does it handle revs dropping down to idle rpm? I think that was the problem the other tuner struggled with
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      05-26-2023, 11:32 AM   #193
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Quote:
Originally Posted by tree233 View Post
How does it idle? And how does it handle revs dropping down to idle rpm? I think that was the problem the other tuner struggled with
Hey Tree233,
I just spoke with the customer and asked him your questions.

In regards to the issues you mentioned, he said "No problem at all, It feels exactly like before with a 3 stage manifold or n54 manifold. No difference at all"
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      05-26-2023, 01:03 PM   #194
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Quote:
Originally Posted by Raimund View Post
Hey guys, 22RPD vendor here.

22RPD can remote tune both MSV70 and MSV80, they used to not do ECU exchange on MSV80, which needs to be updated on website.

22RPD already tuned an N52 with a cut intake manifold which is running well. Customer plans on putting it on the dyno at some point.

Here's a video of the car running
https://youtu.be/JNgG4KFn5xs

Here's a link to the tune (Stage 1 if headers are not installed)
https://bavautoparts.com/products/22...0-stage-2-tune

If there is demand, 22RPD will be developing an adapter plate and optimized velocity stacks for the N52/N51. I will have them on my car if development starts.

I don't check forums too often anymore, if anyone needs any help or has questions you can DM me on Instagram at rai_n52
This is my dream setup for intake noise. Would this be the optimal intake setup for outright bhp on a track car do you think. does heat of the engine bay become a factor in limiting output over let's say an n54 intake with sealed cold air feeds
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      05-26-2023, 03:09 PM   #195
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Quote:
Originally Posted by Spence90 View Post
This is my dream setup for intake noise. Would this be the optimal intake setup for outright bhp on a track car do you think. does heat of the engine bay become a factor in limiting output over let's say an n54 intake with sealed cold air feeds
Based on the other track cars I’ve seen that have itbs without a sealed intake, I would think it's not too much of an issue. But that's just observation, I won't know until it's on the dyno and on my car which will be used for time attack.

Looking at a 335i intake snorkel, it would appear that it would place fresh air right in front of the velocity stacks. But I will have to test fit to be certain. I have an n54 intake manifold with a gruppe m intake, and have data with it on a dinan ram sealed airbox. So I can make a comparison between the two after I test the velocity stacks.
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      05-27-2023, 11:44 AM   #196
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Quote:
Originally Posted by Raimund View Post
Based on the other track cars I’ve seen that have itbs without a sealed intake, I would think it's not too much of an issue. But that's just observation, I won't know until it's on the dyno and on my car which will be used for time attack.

Looking at a 335i intake snorkel, it would appear that it would place fresh air right in front of the velocity stacks. But I will have to test fit to be certain. I have an n54 intake manifold with a gruppe m intake, and have data with it on a dinan ram sealed airbox. So I can make a comparison between the two after I test the velocity stacks.
My car is still on standard 330i tune but being a euro model it has only an IAT and no maf. So surely I could experiment with cutting my manifold on a stock tune? I definitely know I need a tune eventually but can't decide whether to go catless because of emission testing in UK.
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      05-27-2023, 11:48 AM   #197
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Also is there a valvetronic failsafe feature in this tune since it loses the throttle body?
Really interested in this project I was gutted when OP gave up on this project previously.
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      05-27-2023, 12:12 PM   #198
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Quote:
Originally Posted by Spence90 View Post
My car is still on standard 330i tune but being a euro model it has only an IAT and no maf. So surely I could experiment with cutting my manifold on a stock tune? I definitely know I need a tune eventually but can't decide whether to go catless because of emission testing in UK.
I would not run it cut open without a tune. Even the n54im needs a lot of changes to run optimally, while still retaining the throttle body.

If you end up deciding to get a tune, the 22RPD Stage 1 is for stock exhaust manifolds, and the Stage 2 is for headers. However, there is only a $50 upgrade fee to go from 1 to 2, so you don't need to repurchase should you change your mind.

To answer your second question, there would not be a throttle body failsafe running velocity stacks in this manner. The only way to retain throttle bodies afaik is to run an adapter plate for S54 ITBS and then make them work with the stock DME or a standalone ECU.
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