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  #51  
Old 01-17-2017, 09:29 PM
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Originally Posted by Plattus1000 View Post
Which part?
The fact that someone is putting headers on an N62. I've been longing for the Tubulare headers from SS, but they're a good chunk of change.
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  #52  
Old 01-18-2017, 12:53 AM
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What software do you have to have to tune a 4.4?
I know what you need for m54...that path has been cleared by the e46 people. The e38/39 folks are less...transparent.
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  #53  
Old 01-18-2017, 02:13 AM
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I already have an amalgam of a 4.4 and 4.6 tune pieced together by Terrafantm and DUDMD.

If anything, I'll just have DUDMD tweak that for now.
These aren't cheap. The price is $5,500 for just the headers, the x-pipe and cat-delete pipes Jed sells will run another $1,200 but what you get is a lack of questions. Did I pick the right headers, will they hold up, can I salvage them if I wreck my car and sell them for good money.

I know there's some questions concerning the benifit to putting these on an m62 engine but we'll know soon enough if they produce or not.

I'd still be happy to see no gains just to know that something this beautiful is just inches from me underneath the car. I'll keep my fingers crossed for substantial gains but I am very proud to own these for their beauty also. Rolling art.
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  #54  
Old 01-18-2017, 04:25 PM
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Originally Posted by Plattus1000 View Post
I'd still be happy to see no gains just to know that something this beautiful is just inches from me underneath the car. I'll keep my fingers crossed for substantial gains but I am very proud to own these for their beauty also. Rolling art.
I'd want to put holes in the wings just you everyone could see when you drove past!!

Looking forward to seeing the results!
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  #55  
Old 01-18-2017, 10:44 PM
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Quote:
Originally Posted by Plattus1000 View Post
I'd still be happy to see no gains just to know that something this beautiful is just inches from me underneath the car. I'll keep my fingers crossed for substantial gains but I am very proud to own these for their beauty also. Rolling art.
They are undoubtedly good looking. But for their cost... I'd demand significant power/tq improvements. $5500 is nearing FI costs.

Not wanting to be a debbie downer. Definitely hoping you see good results.
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  #56  
Old 02-01-2017, 01:51 AM
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I had a plan:
Local shop "drift office" would do a post-tune dyno so we know how the engine is running now on the amalgam tune by DUDMD and Terrafantom.

Next would be driving a few blocks to DUDMD's shop for a baseline dyno and either he or a friend you met, James (wizard behind the swap success) would help me install these headers. I'd then drive the loudest wagon ever to the other side of the state to have the cats deleted and custom work done on the exhaust, then back to DUDMD's shop so he could strap her to the dyno and see what kind of power he can pull out of the whole pkg...

Then that joker Jed called me up and said that I should drive 1,200 miles to his new shop and let him install them. He then added that Dinan was having a 50% off sale on tuning e'series cars, so let them tune headers that are better than their own e39 M5 headers. Cruel to rub their face in it but kind of a cool thought...

This would be within 1.5 weeks.

If DUDMD can save the Dinan tune to a flash drive and put my car back to the adaptations post-tune (which I'll have him save before driving down) we can then see if Dima, DUDMD can get better results than Dinan.

Dima and I had talked about adding his intake system afterwards to show yet again on another car, it would be a decent increase, especially with headers and a resistance-free (virtually) exhaust.

I'm psyched to make the journey. I've told the wife but not the wagon. That'll take some coaxing.
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  #57  
Old 02-01-2017, 12:03 PM
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Originally Posted by Plattus1000 View Post
I had a plan:
Local shop "drift office" would do a post-tune dyno so we know how the engine is running now on the amalgam tune by DUDMD and Terrafantom.

Next would be driving a few blocks to DUDMD's shop for a baseline dyno and either he or a friend you met, James (wizard behind the swap success) would help me install these headers. I'd then drive the loudest wagon ever to the other side of the state to have the cats deleted and custom work done on the exhaust, then back to DUDMD's shop so he could strap her to the dyno and see what kind of power he can pull out of the whole pkg...

Then that joker Jed called me up and said that I should drive 1,200 miles to his new shop and let him install them. He then added that Dinan was having a 50% off sale on tuning e'series cars, so let them tune headers that are better than their own e39 M5 headers. Cruel to rub their face in it but kind of a cool thought...

This would be within 1.5 weeks.

If DUDMD can save the Dinan tune to a flash drive and put my car back to the adaptations post-tune (which I'll have him save before driving down) we can then see if Dima, DUDMD can get better results than Dinan.

Dima and I had talked about adding his intake system afterwards to show yet again on another car, it would be a decent increase, especially with headers and a resistance-free (virtually) exhaust.

I'm psyched to make the journey. I've told the wife but not the wagon. That'll take some coaxing.
I'm fairly certain that the Dinan tune is a "canned" tune that is pre programmed, and is simply being loaded into your ECU. You are going to get much better results if you find a shop that has the ability to dyno tune. IMO the Dinan tune will not represent what these headers are truly capable of power wise.
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  #58  
Old 02-01-2017, 12:59 PM
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Dinan tunes are based on specific Dinan mods.Tunes are done on a dyno with setup that is attached to the wheel hubs for accuracy. Dinan tunes are not so radical that they reduce engine reliability and longevity so it is likely they leave some performance on the table.

I work up a plan with tuner and dyno tech that limits dyno runs as much as possible to minimize risk of something going BOOM on the dyno. Even with a plan it is quite likely you will do more runs than planned. Unless variables such as temp and humidity are controlled I do all runs on the same day whenever possible, especially when I don't expect gains to be significant.
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  #59  
Old 02-01-2017, 05:39 PM
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I guess I'm curious what the Dinan day will be like but it should be interesting to say the least. I will let Dima do his thing afterwards regardless.

I too fear the big "boom" on a dyno. The least I can be on one, the better.

Mostly, I'm excited to work with Jed, the guy who made these. How cool is that gonna be. A fun uneventful road trip would be nice too.

I'll keep you updated.
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  #60  
Old 02-10-2017, 01:48 AM
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Update;
I ran on 2 different dyno's today to confirm but the results were, odd to say the least.

I've lost 20 hp since the tune and my afr is goofballed. I'll deal with that when Jed and I are done with the exhaust. My departure keeps getting pushed back by details but I'll leave this Saturday at the latest.








This one shows last year pre and today's post tune but the difference is about a year's time and not very impressive when you consider the higher numbers were on a stock 4.4 DME tune.


As to the numbers, each machine reads completely different and I don't remember the equation to get close to true rwhp but you would have to ask DUDMD about his numbers on these machines. He has his head completely around his dyno and can explain anything about it (minus that 4th readout down. That was a freaky thing to see when it happened) That, a stock 4.4 would destroy,

We were all wondering what happened there but 5 minutes later things got better. Not terribly better but better. Still wondering why the AFR wanders all over the place and why the advance is so off.

I have my stock 4.4 dyno in here somewhere. (this thread)

A readout of my 4.4 vs 4.6 on a stock 4.4 dme tune.
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