View Full Version : Starting the turbo M5 project...


reno808
12-07-2007, 11:12 AM
Thought you guys might be interested in this.
I am building an M5 high speed car for the Texas Mile, Silver State and Bonneville.
Anyone who may visit "Rennlist" might know that this is a serious undertaking with full Nascar style cage, etc., etc.

The car is NOT being built with the street in mind, so we do not really have to compromise.
The turbo is GT4788.
The exhaust plumbing is 321 SS to be routed under the engine (ALA 944 turbo) - this I am going to say is easier than canting the engine upright.
I can not use a Burns 6-1 because they are as big as a trash can with the primaries I am using and it wont fit.
We are confident, however, that the Tri-y will still enable over 1,200 crank HP relatively easily. We are talking big Tri-y here.http://www.m5board.com/vbulletin/images/smilies/santa.gif
The management will probably be Link G3.
Compression is 8:1 with the new Mahle motorsports pistons, if they would be so kind as to make them for me, they have been fantastik in the baby Porsche. Bored to the minimum with torque plate, dry sump, 3 gallon tank at the rear, disabled stock pump, 3 044's, etc., etc.

My biggest concern at this point is the head.
It is to be flowed as baseline next week -what am I to expect at .5" 28IN/HG? Anyone here?
The intake ports look small to me??
Obviously, I will work the entire head and fit largest possible valves,but I am dying of curiosity - as I have a machinist cad writer friend who says it flows under 200 stock.

Please, all input is welcome.http://www.m5board.com/vbulletin/images/smilies/M5launch.gif

VentoGT
12-07-2007, 12:17 PM
Reno, welcome to bf.com. I used to be a regular on Rennlist and still trawl around there from time to time. I would advise that you go to www.m5board.com as that is a heavily trafficked and M5 specific board with a LOT more M5 information. They are mostly over in Europe but those folks have a TON of knowledge.

There is also an e34 M5 Yahoo mail list with a plethora of info.

Good luck!

reno808
12-07-2007, 12:23 PM
Reno, welcome to bf.com. I used to be a regular on Rennlist and still trawl around there from time to time. I would advise that you go to www.m5board.com (http://www.m5board.com) as that is a heavily trafficked and M5 specific board with a LOT more M5 information. They are mostly over in Europe but those folks have a TON of knowledge.

There is also an e34 M5 Yahoo mail list with a plethora of info.

Good luck!
THanks we have already posted on that m5board thanks. Any links to this yahoo mail list?

BigM62
12-07-2007, 12:46 PM
Go to the FI section and look up all the Swedes.They just love to turbo the M5 engines.

reno808
12-07-2007, 12:56 PM
Go to the FI section and look up all the Swedes.They just love to turbo the M5 engines.
haha Thanks i just posted up there toooooo

VentoGT
12-07-2007, 05:06 PM
THanks we have already posted on that m5board thanks. Any links to this yahoo mail list?

You go to the yahoo.com site and search under groups for e34 M5. They have to allow you onto the group [which they will of course]

Analog
12-07-2007, 07:19 PM
"Do you have the urge to be bat-shit insane fast?"

Kind of inside joke :)

BUt make sure you get plenty of pictures!

Sounds like an awesome project!

Erick
12-07-2007, 10:48 PM
lol i remember that bat-shit insane fast XD

bmwm3n528
12-08-2007, 05:28 PM
Which S38 are you starting with? (B36/B38?)

The ports are, obviously, quite a bit different.

MPD47
12-14-2007, 09:28 PM
You're building?

That's a bit misleading, especially since the car isnt even for you.

reno808
12-15-2007, 03:36 AM
Which S38 are you starting with? (B36/B38?)

The ports are, obviously, quite a bit different.
b36 yes they are

reno808
12-15-2007, 03:43 AM
You're building?

That's a bit misleading, especially since the car isnt even for you.
YES mike IAM building. what is your problem? ask anders and jim. fyi its anders car. dude next time i would do some research before u accuse someone in public like this.