Euro Headers

[Adrian_Visser]

Stupid question but are these prices with or without shipping?

[OldsCool]

Stupid question but are these prices with or without shipping?

without. if you search for a longer period u can score some good stuff. i've seen 2x a m3 muffler go for 40€ (almost local) now i'm looking for one but nothing cheap there, not even to mention sport exhausts. i paid my m3 cats about 135€ the rest was shipping from germany to austria. i think it was about 30€ (can't remember, but i think it was a good find)

but the prices are average german forum prices / ebay (buy now) prices

[Bimmerron]

[quote=MatRacer;1797802]http://cgi.ebay.ca/Raceland-Exhaust-...item19b881f281

Like this?
Pardon my ignorance for asking a dumb question. I am doing an M52 into e30 conversion. Do these e36 M3 headers bolt straight into an e30 with an M52 engine? I had been told locally that I would need to have custom headers made. =$$$

[Bimmerron]

[quote=Bimmerron;1815887][quote=MatRacer;1797802]http://cgi.ebay.ca/Raceland-Exhaust-...item19b881f281

Like this?
Pardon my ignorance for asking a dumb question. I am doing an M52 into e30 conversion. Do these e36 M3 headers bolt straight into an e30 with an M52 engine? I had been told locally that I would need to have custom headers made. =$$$
I have right hand drive. Steering column connection is on the right hand side of the engine. Does anybody know if these headers will clear the steering connection?. Maybe I need e36 M3 RHD Headers if they are different??

[MatRacer]

let's say you are buying raceland header for a S50.

If you already have shrick cam, 3,5 HFM and 24lbs injector, I guest you would need a different chip If you add a raceland header... Can TMS provide one, given the fact that it is not a TMS header. OR is there any company that could provide a good chip fot this setup.

[hoveringuy]

euro headers installed

These were quite the PITA to install.

I re-routed #6 slightly to clear the firewall. The #1-3 collector was pushed up about 3/4" in order to clear the subframe and the sway bar. It clears both by about 5/16" with 1/4" shim under the motor mount.

Also, the M54 block is physically larger and where these headers easily bolted onto an M50, they actually hit the block on the M54.

The problem with the euro headers is that each cylinder has its own individual flange, they are not combined onto a larger flange plate like most other headers. If the pipe gets tweaked even just a little bit it won't line up any more and the holes are exactly M7 with no room for wiggle.

Also, the port size of the euro motor is huge compared to the US DOHC motors and absoutely gynormous compared to the tiny M54 exhaust port!

Driving impressions: sounds almost exactly like my exhaust with the OBD2 manifold, only slightly more gurgly. NO RASP. ZERO. These are quality stuff. Seems to pull slightly harder.

A/F is a full point RICHER than it was with the OBD2 manifold. I've had to go a click leaner on my multi tune for WOT and it could probably use another click leaner.

When I get my second car (e39?) I'll take them back off and have them coated.

[nando]

where's your X pipe?

[gman325is]

We did some flow testing on several different types of headers, including the ones made for the m50/s52 engine swap. We found that the factory m3 exhaust manifold flowed just as good as most and better than some.

[nando]

We did some flow testing on several different types of headers, including the ones made for the m50/s52 engine swap. We found that the factory m3 exhaust manifold flowed just as good as most and better than some.

what kind of flow testing? a static test like you use on an intake port isn't going to tell you much. headers are far more complex..

[hoveringuy]

where's your X pipe?

It's in the trunk. No... it's incorporated into the OBD2 cat section.

We did some flow testing on several different types of headers, including the ones made for the m50/s52 engine swap. We found that the factory m3 exhaust manifold flowed just as good as most and better than some.

I don't think flow testing tells the whole story.

I logged my MAF flow with the OBD2 headers. I will log again and more flow throught the MAF = WIN!

[nando]

why is it in the trunk? you're missing out on half the scavenging benefit from a decent header. :p

[hoveringuy]

why is it in the trunk? you're missing out on half the scavenging benefit from a decent header. :p

I'm kidding. The X-pipe is part of the OBD2 cat.

My long-term plan is that I'll build a new center section where there will be a X-pipe right after the V-band clamp or just a 2 into 1 merge.

[Adrian_Visser]

Has anyone else had serious problems with the hole alignment on the racelands?

The holes in the flange for mine didn't line up worth a fuck.

Even after drilling them out the next two drill sizes (11/32 which is actually the same as the OE header flange holes) I still had to hog the holes out a little more with a carbide burr.

Godamn that is some hard stainless too I went through many cobalt bits before buying snap on ones that did the job.

And this is all without the engine even going into the car yet lol. I can't wait.

[hoveringuy]

Tentative results from datalogging the MAF flow before and after the euro headers are that I have a slight bump in voltage. I went from around 4.25v at 6000rpm to 4.35v. I'll need to do a bunch of statistical analysis next week by combining multiple runs to get more accurate figures.

The MAF starts getting less linear at higher flows, so even a tiny bump in voltage correlates to a huge increase in flow.

[hoveringuy]

header dyno comparison

This is euro headers vs OBD2 exhaust manifold, same exact tune. I actually lose a few horsepower. Could easily be difference in tire pressure, how the car was strapped-down, etc.



The good news is that the headers responded very nicely to tuning. They allowed me to retard the exhaust cam signficantly and they liked more fuel. Gains from around 2500 to 3500 are nice. OBD2 manifolds didn't like retarding the exhaust AT ALL!

Lesson here is that headers need a header tune to take full advantage.