noob to the whole FI
 

this is my first question WASTGATE LOCATION i have a manifold with no external wasgate hook up. Im using a t3/t4 turbo which has to use an external wastgate. here are my thoughts can i put the wastgate after the turbo in the exhaust pipe???? i have no room in the enginge bay to put the external wastegate in the manifold. the car is a 92 BMW 325is with the M50 2.5l engine. any help will help im in need of a Megasquirt stand alone but need help with the tune thanks

Re: noob to the whole FI
 

You must not understand how a wastegate works. It will divert exhaust gas flow AROUND your turbine housing to keep your boost at the desired level instead of running maximum boost all the time. In order to do this, the wastegate has to be located before the turbo.

Re: noob to the whole FI
 

no you cannot put the wastegate after the turbo in the downpipe. it will not serve its purpose as a wastegate or anything else.

best thing to do is weld a elbow on the manifold for the wastegate,.
post up some pics and many more ideas will come.

Re: noob to the whole FI
 

Haha, prepare dude.


All manifolds have WG plates before the turbo, hence bypassing the turbo to relieve exhaust gases.

Re: noob to the whole FI
 

my manifold is made for an internal WG. so all i need to do is put a pipe in the manifold so the WG is before the turbo this is going to be very interesting and a bit$h. i get it better it wouldnt do a thing in the exhaust pipe. back to the location should it go in a single pipe that come off the head or were the six pipes meet

Re: noob to the whole FI
 

the best place to put it is where all 6 runners meet. where cuts exhaust from the turbo at once.
post pics so you will get more ideas.

Re: noob to the whole FI
 

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Attachment 14249

Re: noob to the whole FI
 

red x's=fail ass

your gonna want it right before the turbo after they all meet, if you can

Re: noob to the whole FI
 

you are gonna have to install it on the car, and find the best spot that you can mount the wastegate so you can also use a dumptube, that manifold looks like something made by xs-power and usually have a shitty ass collector, and cheap thin material will be difficult to drill the hole because of the lack of collector, but its possible.
if you don't know what you are doing don't do it, turbocharging is more than just bolting on a turbo.

Re: noob to the whole FI
 

i thought all the bmw manis were individual flanges per cylinder

Re: noob to the whole FI
 

they were than they made it like it is now to save the cost. im hoping i can flip it over to do a top mount and do some tinkering. im not a total noob i had a 1st gen talon awd with a 4g63 big 16g man,turbo and astro dump but it got totaled out street racing. im just stumped on the whole tuning. a burnt chip is aroung $600 and i want to try out megasquirt. i know the basics how to hook everything up what stuff does new to the external WG though. i need to figure out injecters,tuning for the ignition/fuel. i have all i need but dont want to put it in until i figure out this stuff

Re: noob to the whole FI
 

there's a couple others with turbo bimmers on here, i havent found much as far as cheap tuning software for them though. i've been lookin into a e36 m3 for a while, just not sure about megasquirt .

Re: noob to the whole FI
 

megasquirt seems like a big PITA

Re: noob to the whole FI
 

Get in touch with Urinemachine. He has the cleanest boosted BMW in the universe. Ichbinsobose has a boosted bimmer as well, but he's also a dirty russian who'd rather be molestin' young girls than helping out some noob.

Re: noob to the whole FI
 

that manifold looks like a PAIN IN THE ASS to unbolt where talking here 24 of them.. :S hopefully they are easy to get to..

ya dude just cut into the mani and route a pipe to a good place and mount your WG there and then make a dump tube external or back into the exhaust.. 944's have a external gate under the car..

Re: noob to the whole FI
 

make a sinktrap faggot :7

Attachment 14139

pinched off volvo brick forums... circa 02 :S

Re: noob to the whole FI
 

You could attach the actuator to the frame somewhere and extend the bolt going to the turbo like this.
http://img143.imageshack.us/img143/1...stegate2tx.jpg

Re: noob to the whole FI
 

his turbo doesn't have an internal wastegate

Re: noob to the whole FI
 

ya, there turbo is also on the opposite side from the exhaust mani, just under the intake mani

Re: noob to the whole FI
 

Thets see here as of right now i have TWO stainless steel full length headers, stock the engine has TWO cast manifold so the sink trap wont work FAGGOT

Under the Hood
 

Attachment 14117
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Re: noob to the whole FI
 

space is limited as you can see in the pics the turbo looks dirty but is rebuilt last year just siting in my garage

Re: noob to the whole FI
 

looks like it was sitting outside for a year

Re: noob to the whole FI
 

im going to get it cleaned up and pc before i do the install i just need to figure out the manifold issue

Re: noob to the whole FI
 

You can use a sink trap, but it gets very long due to the angle the M50 motor is canted over at. Easiest if you wanna play that game is to flip the stock cast manifolds over (symetrical bolt patterns FTMFW!) and make a Y pipe to feed the turbo.

That mani is also an SSAC sack-o-----(tm), and it will crack, depending on when you bought it (the later ones are actually pretty good - I've got one right here). It also sits the turbo hard up against the inner wing if you top mount it, you'll probably have to make a wedge piece to tip it over slightly or bottom mount it. Got no experience of that though sadly, as bottom mounts don't work over here due to the steering shaft going right through there :1

Oh, and it's easiest to chop a pipe into the collector; the whole manifold will need to be rewelded anyway and the flange planed flat because the come pre-warped to ----. If you don't, I will come find you and ---- fist your sister for being stupi enough to trust anything remotely crackie chan.

<<<<-- E36 M52B28 turbo builder :)

Re: noob to the whole FI
 

ahhhhhhhhh what the ---- are the FAQs for?????

read assmunch. wastegate on downpipe tells me u down pipe. big black shiny pipe. in your esophagus

Re: noob to the whole FI
 

using the stock manifolds is a good idea im going to have to try that

Re: noob to the whole FI
 

its what me/yuriy did for his m5, worked beautifully

Re: noob to the whole FI
 

yuriys ssauto hasnt cracked yet. h1c + internal gate + sinktrap too

Re: noob to the whole FI
 

Damn, you sinktrapped a turbo manifold? And an SSAC that didn't crack at that? I want that mans lottery numbers. I got one here which I think bimmerman wants to buy that's been rewelded because it cracked within a week of being on the car. Not funny when to get at the bottom row of bolts you have to go underneath the car...

Either that or I'm gonna bandsaw the last two runners off and ruin my 318is dd :6

Re: noob to the whole FI
 

you stupid tard, you come on here looking for advice, and when a viable solution is presented you dismiss it? :1

get creative, and use flipped oem cast manis and a y pipe, as v8dave said, put turbo over inner frame area, move water bottle elsewhere....

or a TIGHT log mani and put turbo where that header is now. :)

Re: noob to the whole FI
 

maybe I didnt read the thread thoroughly enough but why don't you just bolt an internal gate onto the turbo and bypass all of this frustration? Is there no exhaust housing made for that turbo with an internal gate?

Re: noob to the whole FI
 

i ask for advise then ppl call me faggot talk ----! i have a weldiing degree so i can make a log style i think just need a manifold flange thats why im try to get v8 dave to sell that maniflod he has to do something to my likeing if not im going to get some stock cast mfs and do the y pipe design it would be easy and can put the tubo any were.

Re: noob to the whole FI
 

I gave you advice. Did you read it? faggot?

Re: noob to the whole FI
 

im going to stick with an External WG. im not sure what turbo i have so i dont know if there is an Internal exhaust side turbine i can use so the faggot was uncalled for. I wish it was a honda anyone wanna do a trade

Re: noob to the whole FI
 

Don't take it personally when people call you names on this site ;)

Re: noob to the whole FI
 

Dude, it'd cost more for me to ship it from the UK->US that it would to buy one direct from SSACrack.

If you've got a welding degree(?), then just buy a flange and make a log. Better still, got twin turbo :6

Re: noob to the whole FI
 

thats true about shipping i need to get some gaskets to make some flange then im off

Re: noob to the whole FI
 

i am acctually in the process of modifying one of those manifolds for my supplier. i am going to put a flange at the collector, then run a tube down under the car just a bit and have the wastegate sit there. i just tried to take some pics. i dont know if they will make any sense to you but i will try anyway. i have the manifold and turbo mounted, but havent touched any of the wastegate stuff yet

::EDIT:: i have a gasket for the M50 engine. i could send it to my flange guy and sell you a flange if you want also.

here is a close up pic of where the tube will come out of the manifold. i have labeled a few things to help orient you in the car.

Attachment 14093

this pic is at the same angle and just a little farther down towards the rear of the car. the opening on the wastegate will be connected to the downpipe off the turbo

Attachment 14094





::EDIT:: i have a gasket for the M50 engine. i could send it to my flange guy and sell you a flange if you want also. ::EDIT::

Re: noob to the whole FI
 

I've got an M50 dwg :6

Can't quite get the right perspective on those pics, looks like in that last pic you're mounting the wg *under* the car??

Shame it'll never be of any use to us RHD guys, it's tough just getting a 3.5" DP down past the steering shaft let alone putting the turbo down there too :(