Noob to M30's

Good & Tight · Post by **Good & Tight** » Sep 10, 2008 9:09 PM

Big Bronze Rim wrote:Awesome stuff. I like the manifold with the flipped TB. It should be a monster.

Your right

Started tuning and holy shite

traction does not exist

and I haven't even begun to scratch the surface of tuning.

Today was able to get the idle decent, but tuning 85# injectors on a stock engine is challenging. I set the # of squirts to 1 simultaneous and that helped smooth it out.

Data logging recorded 7.5# of boost in first gear with a rolling start and just fried the tires

Haven't even hit second gear yet, not enough room in the driveway.

Can't wait to get it fully tuned and crank it up

Post by **Brad D.** » Sep 13, 2008 11:39 AM

Any progress with the car? How is the MS tuning going?

Good & Tight · Post by **Good & Tight** » Sep 13, 2008 3:06 PM

Big Bronze Rim wrote:Any progress with the car? How is the MS tuning going?

Still tuning, got the idle pretty smooth and still tweaking the ve map. Manage to get to second gear, even more tire spin. Here are some data log pics.

InkaCola · Post by **InkaCola** » Sep 27, 2008 7:11 PM

Big Bronze Rim wrote:Awesome stuff. I like the manifold with the flipped TB. It should be a monster.

a la Alpina style. very nice. i will keep watching here. keep up the good work.

turbodan · Post by **turbodan** » Sep 27, 2008 9:34 PM

Nice dump tube. That kicks some ass.

Good & Tight · Post by **Good & Tight** » Oct 05, 2008 9:54 PM

Had some time for some tuning and data logging. Here's 2nd 3rd gear pull. The TPS position is correct just haven't floored it yet. Also the wastegate spring is 15psi and highest data log is 173kps, meaning the wastegate has yet to open

Even with the drag radials it still breaks the tires loose in 3rd gear

Hopefully get to the drag strip this week.

George · Post by **George** » Oct 05, 2008 10:09 PM

Good & Tight wrote:Had some time for some tuning and data logging. Here's 2nd 3rd gear pull. The TPS position is correct just haven't floored it yet. Also the wastegate spring is 15psi and highest data log is 173kps, meaning the wastegate has yet to open Even with the drag radials it still breaks the tires loose in 3rd gear
Hopefully get to the drag strip this week.

Not sure why the wastegate is screwy. The datalog looks good though. The boost is building really quickly! Are you sure your running a 15lb spring? Also, what is your mPa reading with the engine off (P atm)?

Do you have a picture of your VE and spark tables?

Good & Tight · Post by **Good & Tight** » Oct 05, 2008 10:22 PM

thesixerkid wrote:
Not sure why the wastegate is screwy. The datalog looks good though. The boost is building really quickly! Are you sure your running a 15lb spring? Also, what is your mPa reading with the engine off (P atm)?

Do you have a picture of your VE and spark tables?

I confirmed today it's a 15lbs spring, bought it new from a friend, it's a tial. The MAP is 100kpa with the engine off.

George · Post by **George** » Oct 05, 2008 10:32 PM

Did you buy the whole wastegate new or just the spring?

Is the valve operating correctly? It looks like the engine builds boost really quickly to about 160Kpa and then slowly creeps up to 170kPa

turbodan · Post by **turbodan** » Oct 05, 2008 10:41 PM

Note the RPM that this is occuring. That high above the boost threshold, boost should come on that quick. You're seeing what appears to be normal operation of the wastegate. They dont always make full pressure either. My .6 bar spring cracks open at 140kpa. Its not unusual. Consider the spring rating a maximum potential boost pressure.

Good & Tight · Post by **Good & Tight** » Oct 05, 2008 10:43 PM

thesixerkid wrote:Did you buy the whole wastegate new or just the spring?

Is the valve operating correctly? It looks like the engine builds boost really quickly to about 160Kpa and then slowly creeps up to 170kPa

Bought the whole thing new. The vacuum line is connected on the bottom of the wastegate. I should buy a 10# spring to keep the engine from popping, or just throw some race gas in it and see what happens

turbodan · Post by **turbodan** » Oct 05, 2008 10:54 PM

I dont think you'll have any problems at 180kpa.

I'd run it.

Good & Tight · Post by **Good & Tight** » Oct 11, 2008 7:12 PM

turbodan wrote:I dont think you'll have any problems at 180kpa.

I'd run it.

How about 211kpa at 60% throttle you think it's safe, bone stock motor never been opened with unknown miles

Had the blow off valve hose on wrong which was causing it to open as boost started to build. Swapped the hose and saw 16psi

Got back home cracked open a beer to keep me from driving it again

Good & Tight · Post by **Good & Tight** » Nov 08, 2008 11:14 PM

Got a few short vids at 1/2 throttle last night. Ran a few cars but nothing to video, the cars disappear to quickly:D Running 11.5# of boost spiking to 16#.

link here

http://forums.bimmerforums.com/forum/sh ... ?t=1115805

Post by **Brad D.** » Nov 08, 2008 11:17 PM

Good & Tight wrote:Got a few short vids at 1/2 throttle last night. Ran a few cars but nothing to video, the cars disappear to quickly:D Running 11.5# of boost spiking to 16#.

http://s3.photobucket.com/albums/y83/lisaotis/?action=view&current=whitecar2.flv

http://s3.photobucket.com/albums/y83/lisaotis/?action=view&current=whitecar3.flv

http://s3.photobucket.com/albums/y83/lisaotis/?action=view&current=whitecar4.flv

http://s3.photobucket.com/albums/y83/lisaotis/?action=view&current=whitecar5.flv

http://s3.photobucket.com/albums/y83/lisaotis/?action=view&current=whitecar6.flv

http://s3.photobucket.com/albums/y83/lisaotis/?action=view&current=whitecar7.flv

http://s3.photobucket.com/albums/y83/lisaotis/?action=view&current=whitecar8.flv

http://s3.photobucket.com/albums/y83/lisaotis/?action=view&current=whitecar9.flv

It says a password is required.

brody · Post by **brody** » Nov 10, 2008 11:36 AM

griffith wrote:I don't know which had the mythical oil squirters, I would guess the later models (I was saying, ahh the later models must have had the squirters).

Jason

how are the oil squirters mythical? You can see them in the picture on the earlier block... look at the holes where the bearings go, there are supposed to be tiny nozzles if you will, that recess into there and thus become oil squirters for the underside of the piston.

There are a few companies that will machine them into a 3.5 Block to BMW factory spec.

Good & Tight · Post by **Good & Tight** » Nov 12, 2008 12:38 PM

Just came back from the dyno, pump gas with 14psi. My street tune wasn't that far off, leaned out the AFR's up top and gained 30whp and advanced the timing a bit. I'm happy:)

Duke · Post by **Duke** » Nov 12, 2008 12:48 PM

Great numbers for 14 psi and 88 air temp. Congrats!

Post by **Brad D.** » Nov 12, 2008 12:51 PM

Nice numbers!

George · Post by **George** » Nov 12, 2008 12:53 PM

Good & Tight wrote:Just came back from the dyno, pump gas with 14psi. My street tune wasn't that far off, leaned out the AFR's up top and gained 30whp and advanced the timing a bit. I'm happy:)

Congrats! Those numbers are great.

Good & Tight · Post by **Good & Tight** » Nov 12, 2008 1:07 PM

Duke wrote:Great numbers for 14 psi and 88 air temp. Congrats!

Big Bronze Rim wrote:Nice numbers!

thesixerkid wrote:
Congrats! Those numbers are great.

Thanks guys, the first dyno run it laid down 400ftlbs and didn't believe it.

I was going to throw a wastegate controller on it to bump it up to 18psi but figured let me not push my luck with a unknown mileage stock engine.

Post by **Brad D.** » Nov 12, 2008 1:08 PM

What clutch are you running?

Good & Tight · Post by **Good & Tight** » Nov 12, 2008 1:24 PM

Big Bronze Rim wrote:What clutch are you running?

It's a 7.25" twin plate race clutch w/lightened flywheel, had it on my M10. I think it's good for 600ftlbs. Whole assembly weighs 14lbs.

George · Post by **George** » Nov 12, 2008 1:27 PM

What Octane was that on? 91, 93 100??

Good & Tight · Post by **Good & Tight** » Nov 12, 2008 1:30 PM

thesixerkid wrote:What Octane was that on? 91, 93 100??

93

George · Post by **George** » Nov 12, 2008 1:31 PM

Good & Tight wrote:
thesixerkid wrote:What Octane was that on? 91, 93 100??
93

you lucky guy, I'm stuck with 91

Post by **Brad D.** » Nov 12, 2008 1:37 PM

Ya, having only 91 craptane sucks for you guys.

That is one beefy looking clutch BTW.

George · Post by **George** » Nov 12, 2008 1:40 PM

tell me about it.

100 octane is available because I don't live that far from the Pomona race track. I think when I finally get the damn car to a dyno in December I'll have a 91 octane tune done as well a 100 octane tune

Good & Tight · Post by **Good & Tight** » Nov 21, 2008 9:28 PM

It was only a matter of time, gasket crapped out on cylinder 1 & 6, the gasket was pretty dried up. Have ARP's on the way with a stock headgasket. The stock headgasket will hold 18psi with head studs right?

Here are some dyno pulls

Post by **Brad D.** » Nov 21, 2008 11:45 PM

Engine sounds great on the dyno. The HG didn't last too long though at that level.

MyE28.com

MyE28.com

Noob to M30's