If you ever thought about to upgrade the headers on your S38-B36-B38 your answer will end up hear, remember they are not that expensive as they were several year ago ! My guess is: since BMW changed manufacturer they drop in price almost half. The old manufacturer made them mandrel bent one piece, the new ones are welded it does not bother at least me !
At my play house I pulled 3 different headers in comparison. On the table we have M88/3 B36-(B38) S54-B32
The M88/3 headers will remain the Winner, at least for me !
The M88/3 headers were design for pure performance, no cats, no restrictors, no smog emissions.
All the measurements I took have some minimal tolerance +/- ... But the idea is there
On my track car E24 M6 B36 powered I will use the M88/3 and I cut the secondary pipe to do custom with 2.5 inch=63.5mm as I have done to all my S38 conversion, swaps etc..
Also I have noticed no one ever discussed about the emission little pipes on the B36-B38 headers which appears to be air flow restrictors. I had fitted B36 headers to US S38-B35 and cut removed those when sold it for swap etc...
This should be helpful for those who want to improve performance over the factory bone stock street/road car.
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- It is super fun to build your own custom car the way you want it and like it.
- E24 M6 1988. Shwartz/Tan Original condition. Daily driver, keeper, Dinan suspension, Dinan adjustable sway bars, Evo S14 A100 cam gear, TMS chip, 360mm 6pot front, BBS 17x9,5 BBS E26 Magnesium Race wheels wrapped 255's.
- E24 M6 1988 Shwartz/Grey Collectible for shows 100% all original unrestored, keeper..
- E24 M6 1988 Shwarts/Lotus For Sale E24 M6 http://euroclassicmotors.com/galleries/bmwm6e24.html.
- E24 M6 1988 Royal Blue/Lotus white S85-B50 Restoration in proses.
- E24 M6 1988 Shwartz/Recaro S38-B36 3.6 goal is ~52/48 weight distribution at around 2800 pounds. My Track car for Vintage Racing !
- E30 M3 1990 Euro B38 3.8 goal is ~52/48 at ~2800 pounds.
- E53 X5 3.0 2003 Wife's car.
- E31 840Ci 1997 Black/Black, CSI exterior.
Last edited by First e28 M5; 1st July 2012 at 22:25.
By the way, from data that i have, the Racing M88 came from factory with close to 50mm primary pipes. This is M88 common production i believe, but we can see the difference from primary pipes..
By the way, from data that i have, the Racing M88 came from factory with close to 50mm primary pipes. This is M88 common production i believe, but we can see the difference from primary pipes..
Did you fit this M88 in a E34 S38 car?
Matheus,
When you say Racing M88/? What do you mean ? Which Chassis are they used those headers you are talking about ??? I am confused. Is this from the BMW Motorsport catalog?
Like I said the M88/3 found at the pictures hear found at Euro E28 M5, E24 M635CSi will fit the E34 M5 Chassis. I sow it with my 4 eyes used on IMSA E34 M5 ! No problem ! For sure you have to cut the secondary as I did on mine. And in your case you have to delete the smog pump.
That is why I gave you the example that the M88/3 are designed for E28 M5 and M635CSi Chassis. You will never fit B38 B36 headers to M635CSi, E28 M5 chassis. Also look at the pics and see how compact they are in comparison to B36/B38 headers.
As I have mentioned soon I will make a full report on IMSA E34 M5 and you will see it there, I will sent you the link.
When you say Racing M88/? What do you mean ? Which Chassis are they used those headers you are talking about ??? I am confused. Is this from the BMW Motorsport catalog?
Like I said the M88/3 found at the pictures hear found at Euro E28 M5, E24 M635CSi will fit the E34 M5 Chassis. I sow it with my 4 eyes used on IMSA E34 M5 ! No problem ! For sure you have to cut the secondary as I did on mine. And in your case you have to delete the smog pump.
That is why I gave you the example that the M88/3 are designed for E28 M5 and M635CSi Chassis. You will never fit B38 B36 headers to M635CSi, E28 M5 chassis. Also look at the pics and see how compact they are in comparison to B36/B38 headers.
As I have mentioned soon I will make a full report on IMSA E34 M5 and you will see it there, I will sent you the link.
Regards
Anri
sorry, again we are talking about different things! :-) .. i was talking about M88/1 (now i see that you described /3 from beggining.. sorry, i missed it.. ), that equipped the M1 Procar (Race spec version)..
I did this confusious, because in the other thread, you talked about the M1, and i was thinking that we are talking about Race spec M88 from M1 version (that is M88/1.. with primary pipes with close to ~ 50mm).
by the way, nice info here and good material for comparison purpose.
Is very easy to see how the focus of BMW to S38B36/B38 exhaust manifold was power/torque balance for all range, not peak power.
sorry, again we are talking about different things! :-) .. i was talking about M88/1 (now i see that you described /3 from beggining.. sorry, i missed it.. ), that equipped the M1 Procar (Race spec version)..
I did this confusious, because in the other thread, you talked about the M1, and i was thinking that we are talking about Race spec M88 from M1 version (that is M88/1.. with primary pipes with close to ~ 50mm).
No problem. that is what communications are for I kind of suspect that you were talking about the E26 M1 but was not sure 100% that is why I asked.
Hear is another idea how to fit M49/X headers similar to E26 M1 but I dont think Passos will turn his car into that level of racing As you can see the M49/X is set vertical with this Brutal Headers
Please NOTE that they are Ceramic Coated !
I forgot to mention to you previously if you ever put M88/3 on passos car please make sure you will Ceramic Coast them to keep the heat low... DON NOT WRAP them because they will CRACK !!! Well... you can re-weld the Primary/flanges to make them stronger and then try and take chance but I would not do it.
They are Sexy when they are Ceramic Coated in White..
The M88/3 produce so much heat that is not even funny !
No problem. that is what communications are for I kind of suspect that you were talking about the E26 M1 but was not sure 100% that is why I asked.
Hear is another idea how to fit M49/X headers similar to E26 M1 but I dont think Passos will turn his car into that level of racing As you can see the M49/X is set vertical with this Brutal Headers
Please NOTE that they are Ceramic Coated !
I forgot to mention to you previously if you ever put M88/3 on passos car please make sure you will Ceramic Coast them to keep the heat low... DON NOT WRAP them because they will CRACK !!! Well... you can re-weld the Primary/flanges to make them stronger and then try and take chance but I would not do it.
They are Sexy when they are Ceramic Coated in White..
The M88/3 produce so much heat that is not even funny !
Anri
Nice pictures (started from Race M30 with slide throttle and then M49 era.. when everything began in the BMW double overhead camshafts engines technology)!
For sure the M49 manifold had the best geometry that a manifold can have to prevent "pressure drop" (no immediate bends).. so sad to we can´t make (even with a new manifold project) in E34 shell.. in the E34 body (and most street version cars), is not possible to do a so good geometry like this (straight from exhaust port and large radius bends).
you can see how large are the primary pipes (focus at peak power), they fill all flange area...
By the way, the Procar exhaust manifold should be the best option for E34 body.. so sad that it is very rare and BMW didn´t open to common sales at Motorsport catalog.
And about M88/3, i sent to you a e-mail in your website contact (i don´t have enought posts to use PM box here).
Nice pictures (started from Race M30 with slide throttle and then M49 era.. when everything began in the BMW double overhead camshafts engines technology)!
For sure the M49 manifold had the best geometry that a manifold can have to prevent "pressure drop" (no immediate bends).. so sad to we can´t make (even with a new manifold project) in E34 shell.. in the E34 body (and most street version cars), is not possible to do a so good geometry like this (straight from exhaust port and large radius bends).
you can see how large are the primary pipes (focus at peak power), they fill all flange area...
By the way, the Procar exhaust manifold should be the best option for E34 body.. so sad that it is very rare and BMW didn´t open to common sales at Motorsport catalog.
And about M88/3, i sent to you a e-mail in your website contact (i don´t have enought posts to use PM box here).
Regards,
Matheus
Matheus,
Everything is possible in this Mechanical World ! But coast money...
If you want to fit those M49/X headers passos E34 M5 will have to turn into a Race Car, not Track car. Often people does not make difference between both. Indeed passos will be a occasional track/fun car. Ohh well that is why I dont get too excited because other things in life are more important...
If you get a chance, can you take a picture of the inside of the collector on the original M88/3 headers you show with the secondaryt pipes cut off. I want to see how well the original ones were made on the inside where the 3 pipes meet vs. how they look when you order them now -- which looks like crap IMO.
If you already welded the 2.5" pipe to them then nevermind.
If you get a chance, can you take a picture of the inside of the collector on the original M88/3 headers you show with the secondaryt pipes cut off. I want to see how well the original ones were made on the inside where the 3 pipes meet vs. how they look when you order them now -- which looks like crap IMO.
If you already welded the 2.5" pipe to them then nevermind.
Josh
Josh,
I will sent you pics on your e-mail as well on the others we spoke over the phone. I agree the old and original M88/3 headers have better build quality vs the new ones.
Hope to see you soon down to LA at the Dyno shop to enjoy the car
21Likes
used on IMSA E34 M5 ! No problem ! For sure you have to cut the secondary as I did on mine. And in your case you have to delete the smog pump.
I kind of suspect that you were talking about the E26 M1 but was not sure 100% that is why I asked.
As you can see the M49/X is set vertical with this Brutal Headers 
Linear Mode
