Anyone tried Schmeidmann S65 headers?

Raptor251 · 03-08-2012, 08:15 AM

Quote:

Originally Posted by THE TECH

Unless the gains are like 40hp, I don't see them being worth the time it will take to install.

I would install them if they only produced 5-10hp because I'm a car nut that loves to work on his own car. I think trying to install these would be a really fun project, to each his own...I'm not scared to get my hands dirty!

flipm3 · 03-08-2012, 09:24 AM

Quote:

Originally Posted by SchnellM3

Titanium Headers from Akra = $$$$

Titanium Headers from Akra =

Sales@Evolve · 03-08-2012, 10:55 AM

You have to bare in mind - the stock headers on the S65 are radical in design from the very beginning. Similar to back in the day when they made headers for the S38 engine - totally amazing equal length headers with properly designed merge collectors.

All of these headers by design are exact replicas of the OEM headers. Even the diameter looks similar and the merge collector certainly is nowhere near as good as stock.

This is a proper merge collector:

The nicest header seen so far is from Amuse :

Check out the merge collector!

This header is an absolute work of art.

The problem is this, it's not even worth considering any of these headers without actually knowing if they actually add power or not.

If a larger diameter stock version does add power with a true merge collector then you will be looking at around $2500-$3000 for a set.

Who will test though??

M3PO · 03-08-2012, 03:31 PM

Quote:

Originally Posted by pbonsalb

If it is just a matter of time and patience, I would spend a day installing them if they were worth 15 rwhp since I am a DIYer. If I have to pull the engine to do it, I might think twice.

I have run 5 different headers on my E36M3 over the years. The ones that were like a snake's nest -- like these -- were the most challenging, and the S65 has another cylinder in each header. I would not want to pay the labor to install these, but many E9x owners seem to have a lot of money to spend, so I think there will still be a market if even small gains can be proven.

And the supercharger guys making 50% more power than stock are probably past the efficiency point of the stock headers.

To install them, you'll probably have to unbolt the subframe and support the motor from above. It's a lot of work. The procedure is likely similar to what the IS-F guys have to do. And if I recall, they are paying ~$1500 for headers and ~$1500 for labor. The difference is that the IS-F has sh*t stock headers/manifolds so the are seeing something like ~40 RWHP from headers.

shay2nak · 03-17-2012, 10:21 PM

no way these headers would get you +40whp. Maybe 10-15whp...and that's at the very top. I'd be interested in knowing what the weight savings are over the stock pieces. That's another advantage that folks don't think about. Not unless you're looking to drop total weight off the car with lots of other bits.

Kyoshi71 · 03-18-2012, 05:48 AM

Quote:

Originally Posted by pbonsalb

They look the same to me. It does not even look like one copied the other. Looks like they are made in the same place, but one has a price tag twice the other.

Quote:

Originally Posted by Nate@IND

We are working on keeping the pricing 4k or under.

Thanks for that mark-up

And agree with previous post^. 40whp is out of the question.

saxonb · 08-31-2013, 02:06 AM

Has anyone tried these yet at all?

I can't find the product on the schmeidmann site anymore. M24 are still for sale but are still $3000+

I'm looking at fitting these with a positive displacement TVS supercharger from Harrop. I am expecting to get at least 20hp.

MisterEm · 08-31-2013, 11:43 AM

F/I will almost always benefit from exhaust manifold improvements. The harrop kit will enjoy more efficient scavenging than a naturally agitated S65.

FWIW: The Gintani Stage 3.5 YSI car with the tentative WHP record has larger custom headers.

1MOREMOD · 08-31-2013, 11:44 AM

Quote:

Originally Posted by MisterEm

F/I will almost always benefit from exhaust manifold improvements. The harrop kit will enjoy more efficient scavenging than a naturally agitated S65.

FWIW: The Gintani Stage 3.5 YSI car with the tentative WHP record has larger custom headers.

my s65 was naturally agitated also. especially until warmed up.

ZZebes · 08-31-2013, 12:28 PM

Quote:

Originally Posted by 1MOREMOD

my s65 was naturally agitated also. especially until warmed up.

03-08-2012, 10:55 AM	#25
Sales@Evolve BimmerPost Supporting Vendor 92 Rep 1,064 Posts Drives: Slow Join Date: Feb 2008 Location: Luton, Bedfordshire iTrader: (0)	You have to bare in mind - the stock headers on the S65 are radical in design from the very beginning. Similar to back in the day when they made headers for the S38 engine - totally amazing equal length headers with properly designed merge collectors. All of these headers by design are exact replicas of the OEM headers. Even the diameter looks similar and the merge collector certainly is nowhere near as good as stock. This is a proper merge collector: The nicest header seen so far is from Amuse : Check out the merge collector! This header is an absolute work of art. The problem is this, it's not even worth considering any of these headers without actually knowing if they actually add power or not. If a larger diameter stock version does add power with a true merge collector then you will be looking at around $2500-$3000 for a set. Who will test though??
	Appreciate 0 Quote

03-17-2012, 10:21 PM	#27
shay2nak smoke if ya got 'em 1070 Rep 2,179 Posts Drives: F80 M3/Lotus Exige/500 Abarth Join Date: Feb 2011 Location: Calipornia iTrader: (0)	no way these headers would get you +40whp. Maybe 10-15whp...and that's at the very top. I'd be interested in knowing what the weight savings are over the stock pieces. That's another advantage that folks don't think about. Not unless you're looking to drop total weight off the car with lots of other bits.
	Appreciate 0 Quote

08-31-2013, 02:06 AM	#29
saxonb Second Lieutenant 70 Rep 287 Posts Drives: E70 X5M Carbonschwarz Join Date: Mar 2010 Location: Sydney Australia iTrader: (0)	Has anyone tried these yet at all? I can't find the product on the schmeidmann site anymore. M24 are still for sale but are still $3000+ I'm looking at fitting these with a positive displacement TVS supercharger from Harrop. I am expecting to get at least 20hp. __________________ Drives: 2010 E70 X5M Carbonschwarz Loved and lost: 07 E92 M3 Silverstone II / 96 E36 M3 Evo Estoril Blue / 07 E84 Z4 M Coupe Interlagos Blue
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08-31-2013, 11:43 AM	#30
MisterEm Second Lieutenant 33 Rep 203 Posts Drives: slow turd Join Date: Sep 2010 Location: huh iTrader: (0)	F/I will almost always benefit from exhaust manifold improvements. The harrop kit will enjoy more efficient scavenging than a naturally agitated S65. FWIW: The Gintani Stage 3.5 YSI car with the tentative WHP record has larger custom headers. __________________ Naturally Agitated - S54B34 CSL Clone - *395 285 SAE on 91 pump* - 3150 lbs - P car and E9X eater.
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