I'm going to pick up a set of Robs C32 downpipes when he finishes them and then modify them so they clear the center diff and front driveshaft or possibly just make a set from scratch along with the back half of the exhaust since I'm going 3" single the rest of the way out.

If you look at the flow characteristics of these vs the factory manifolds, you'll quickly see that there are gains to be realized even by a shorty style header like this. The factory manifolds are slip fit under the heat shield and the ID of the runners is half what these are.

I know, almost a shame but the good news is you can see them if you're looking for them so they won't be completely invisible.

Thanks and will do. It's crappy, cold and snowy up here right now and I've got a healthy amount of work to do to the car but this spring when the tracks open back up, should be for a real good time messing with people both there and on the way to and from! LOL

Yup, and this thing should fly!

It's kind of an optical illusion as they somewhat look like they are turned forward when in reality, they are pointing right at the downpipe flange. I won't be able to do a true before and after for these as I'm upgrading the rest of the exhaust at the same time.

 

Thanks for a totally flame-free reply on the forward facing cyl (mostly on the drivers side illusion, if left handed driving), it sure did look like it was facing forward... Anyway, too bad this one set could not be installed and tested, then the rest added.

 

My car is AWD so getting it on a dyno is either expensive or a PITA to line up a time that works for all parties involved but I'm guessing Rob will have some before and after numbers on his C32 shortly

 

See the red hot Inconel exhaust on a F1 V10 Honda engine on a test bed in

this clip

. (at the 1 minute mark)

 

DAYUM! Shore Nuff Biatch'in!

 

That's right. Any 1/4 miler knows that. Assuming that equal length headers are all but impossible with the space we have, there are still gains to be had in the exhaust. By eliminating the 2 back CATS and resonator, using 2.5 in. all the way back, inline resonators, 2 into 2 muffler, you have a true dual exhaust that doesn't have the 2x2.5 into 3 restriction and the restrictive turns. Oh, and a Xover.

 

I'd wager the "shorties" will be close to long tubes until the upper rpm range. I hope we find out one day.

Les

 

Measured up the stock exhaust and the surrounding sheetmetal on the underbody and put something together in solidworks. I designed this with 2.5" up front and 3" after things merge together. I made everything as straight as I could but the part around the center diff and front driveshaft proved to be rather tough so I used the same routing as stock. This model was more or less to see where I could straighten things up and what bends could be omitted and which ones needed to stay and to get a good idea what bends I'd need to get. This file right now couldn't be used to build one and bolt it on the car but it wouldn't be too tough to correct if it was be something that was to be used for manufacturing and you noted your changes as you did things.

 

That's nice I wish I could do it, I have my old bosses fully licensed SolidWorks 2012 setup on a computer here to learn, but after using AutoCad for so long I just cannot wrap this old brain around it. No patience these days. I really should try though as it just sits here. How hard can it be?

It really kicked AutoCad out the door on it's ****. Just as well I retired as I may have been kicked out the door with the ACad.

 

It all looks great.......waiting with baited breath

 

Until I can see Robs C32 downpipes to determine if it will be possible to make them work around the 4matic componenets and what would all need to all be changed, nothing is going to be made or bought.

 

Hey Rudy I am a very patient guy........I never have a problem with the time it takes to see these things through......unlike some on here who get impatient with the development of new products with nasty comments or little understanding for the development process. It all is a work in progress and takes time.

 

I was the last guy in the header group to get my money back and it was sent back not because I requested it. I would still be "in" on that deal if it were not for some. It is very few and far between that anyone is willing to develop new products for our orphaned cars so I am very grateful and patient when things come along.

 

But the nice thing about the CAD files.. if you've got a complex face on a part.. you can start your model with that by importing the DXF..

I just wish we could get our Generators in a 3D model!

 

you sir have no idea what your talking about. your were the last on the group buy? i was the first. in fact i arranged for the headers to be sent for mock up fab. after 7 months of nothing you expect me to just sit back and wait while they proclaim they have NO PROJECTS to do so they are going to build a s/c for the e55?

lets put your money were your mouth is. i have a shop that will build you a set of headers in less than 2 months. send your car and a large amount of cash and i will get it done. until then sit back shut up and let others do the fab work for you

 

Easy there Steve, I think he was saying that he was more than patient to see something come of this. BTW, these don't have anything to do with the Speedriven headers so let's not clutter Rob's thread with that.

 

no disrespect to you or rob. i dont speak in innuendo or vaugely. i say it up front and to the person im talking to

 

I am not in the habit of posting on this forum just to start some BS so I can make others feel justified by their actions. If the shoe fits wear it other wise don't comment on posts if you are not in a position to know what I am speaking of. You sir have no respect for others or you would not insert yourself in comments and assume you know anything about what I am talking about. If you had a problem in the past that is your problem and doesn't involve me. You need to backoff and find some manners. Nobody said anything to you Steve or about you so post when you have something constructive to say.

 

lets all send waldig a pm and tell him happy birthday

 

thank you for posting up some pictures Rudy, yes still playing with the r170/193 headers

btw, did anyone know that a 193 prefixed part number means crossfire instead of slk and not interchangeable, such as the rear trunk shocks