Supercharged E34 M60/M62's check in here

[BruinBimmer]

Working on this for another member, will definitely be looking at doing a few other bits to go along with the PCV delete plates and the Provent 200 setup for you M60 guys.

M60_Crank_Pulley_1 by 93FIM5, on Flickr

-Greg

You the man Greg! Will there be an 8-rib version?

[UnrulyGrace]

You the man Greg! Will there be an 8-rib version?

Please!

[GazM3]

UPDATE: Well the tough stuff is done. Its basically in tuning mode. Have 36 lb/hr injectors, a euro s50b32 maf (bosch 806), and a turbosmart adjustable fuel pressure regulator. Had a few fiddly issues initially, not helping with a faulty wideband sensor giving us unusual signals. I have a basic (but very handy) fuel interceptor computer which is enabling me to change the fuel values at 128 load points, but it enables us to alter the voltage ratio that the ECU sees from the maf. Currently its stepped down when maf gives 5.0v, it gives the computer 4.4v. Maf can go beyond 5v it seems so no resistor/s required at this stage. We will keep lowering it until we have full maf range to 7000rpm.

Initially I was running out of MAF (load point 128) at about 4900rpm with the OEM maf. With the m3 maf it raised it to about 5400rpm. With the fuel computer now on and a trustworthy wideband, slowly feeding in fuel, and testing up to 6000rpm is making orsome power, and seeing A/F around 10.8:1 and no sign of pinging. I haven't pushed it much more as its pouring rain here and kinda hard to use full power in the wet in the first 3 gears. We are running 4bar (59psi) fuel pressure. I may up the fuel pressure slightly so we can trim some fuel out of the computer, which will feed in more timing, making more power. Ill try to get full throttle AF ratios in the low 11's, and all the part throttle/idle in the 14's. I don't have the luxury of someone being able to tune the 404 Ecu here in Australia, and as its a road car, I wanted to keep the nice OEM drivablity and impeccable manners, and keep costs under control. I had a haltech elite ecu on stand by, but ive got that earmarked for the m635.

Hard to say what sort of power its making now, but its power delivery is smooth and once it hits about 4500, it throws you back in the seat much more strongly than before. I have to sort the exhaust soon, as the oringal exhaust fabricator thought it would be a good idea to feed the dual 2.25" pipe into a single 2.25" after the first muffler. It sounds great but no doubt it will hold it back. The oem exhaust is dual 2" which would be better, but Ill probably go with a dual 2.25" muffler as the noise is intoxicating.

Im pretty busy this week and the weather is wet, so Ill get some tuning done on the weekend. Hope ive got full range of the maf to 7000rpm then sort the exhaust. I wouldnt be surprised if we end up well over 400rwhp, once the exhaust is done.

So hopefully we have one of the first successful air/air intercooled e34 supercharged setups. I was inspired by the Gixxerboy to learn from the mistakes of is system, to simplify the setup, and to get the maf to the pressure side of the system rather than the supercharger entry point. Its great having nice consistent power all the time, with little drop off in traffic or in hot weather. The only casualty has been the traction control module. Good riddance to it i say. AC is still in tact. By god it has taken some time and fiddling to get there though. I have no idea of the boost level, ill have to put a gauge on it, but its 2 sizes smaller than the factory ESS kit. I think the ESS kit will be lucky to give 6psi so I may be peaking at 7-8psi as a guesstimate due to the extra resistance of the intercooler and piping. Ive been able to keep the piping all at 3" (75mm) which helps free up the intake.

I guess the problem may be where to stop. Now I have control over all things, the temptation will always be to go smaller again on the pulley, wack some 42 lb/hr injectors in it and push the boost to double digits. I guess if I have fuel, and no pinging I should be able to feed in more. Ill play around with the cam timing also as less overlap would be a good thing for low rpm power, and Im keen to run a solenoid on the blow off valve with a hobbs adjustable pressure switch, so I can keep say 4psi boost in it when its there rather than having it hunt on the blow off valve at very low throttle. Why waste the boost. The blow off valve is really for gear changes and braking.

I will do a proper build thread for it once its finished. I have bad luck doing build threads and its nothing worse than having 90% of the work done, and have a shit time of it getting it sorted to the point you get disinterested in it and get sidetracked doing other cars.

[GazM3]

UPDATE2: It finally stopped raining enough to start tuning and programming it. Tried a 0.4 volt offset and the maf saw full load in the high 5's . Changed to an 0.8v offset (computer sees 4.2v when maf at 5v - so maf continues to 5.85v). Maxing out the maf at about 6000-6200rpm. On the Bosch 806 maf (approx 380bhp rated) with a voltage offset of about x1.19 we are still seeing a maf at full load. Air fuel ratios are good to about 6300 then leans to 14:1 which is no good. I think ill need to put in the 803 Porsche maf, or Im thinking the Porsche 809 (993 turbo gt2) will probably be a better fit.

I guess the good news is it makes great power - around the 450bhp mark at 6000-6200, on a single 2.25" rear exhaust muffler. I think ill order the 809 Maf, and try to stay to a self imposed 5500 rpm limit. Ill source a new exhaust back section hope in a few weeks also then we can let it off the leash. Hopefully it all works out well

[motorokr718]

Little late to the party here and might be a bit of an outcast, buuuuut i have an exhaust driven supercharger, so can I hang out with you guys?

IMG_0384.jpg

IMG_0070.jpg

[GazM3]

Looks good. Can u get the front bumper on still.

How do u go getting stable maf with it right on the compressor discharge. ?

[motorokr718]

Looks good. Can u get the front bumper on still.

How do u go getting stable maf with it right on the compressor discharge. ?

Kind of. Needs some serious trimming still. Haha. And that pic is deceiving, the compressor points straight down to the intercooler, then the cold side piping comes back up next to it. Also it's converted to speed density now, so the MAF is getting pulled.

[GazM3]

Yes it is deceiving.

[Mykk]

You guys have really, really got me thinking about doing the Eaton M112 from the Jaguar XKS on my M60.

[NikosX]

You guys have really, really got me thinking about doing the Eaton M112 from the Jaguar XKS on my M60.

What is an XKS?


Sent from my iPhone using Tapatalk

[Mykk]

what is an xks?

*xkr

[GazM3]

someone was making a "kit" like this. It would make great bottom end torque.

the centrifugal blower though doesnt load up the engine too much as it comes in gradually, so it could cope with bigger boost than one of those eatons. I kind of like the way the centrifugal blower builds boost, makes it feel like a crazy NA engine.

[Crabfish180]

so, im jumping on the wagon here. i bougt a kit for 1170 freedom pesos with e39 m5 injectors.

18676775_10158762424670644_202615260_o.jpg
the bracket here was mounted where the ac unit sitts, ofcourse i want ac when my car have it.
so called ess tuning. their bracket that they weld to the engine mount costs 351 dollhairs, the crankshaft wheel, another 351 , and the belt tentioner was 293...

so do you guys have any suggestions to complete my "budget" build, soon to be expensive...

here is a picture of my e34

18676693_10158762513145644_1118289348_o.jpg

[JGood325]

so, im jumping on the wagon here. i bougt a kit for 1170 freedom pesos with e39 m5 injectors.

18676775_10158762424670644_202615260_o.jpg
the bracket here was mounted where the ac unit sitts, ofcourse i want ac when my car have it.
so called ess tuning. their bracket that they weld to the engine mount costs 351 dollhairs, the crankshaft wheel, another 351 , and the belt tentioner was 293...

so do you guys have any suggestions to complete my "budget" build, soon to be expensive...

I don't have any suggestions, but I'd be interested in purchasing your bracket, as I'd like to mount a supercharger in that location. I'm not seeing how it puts it where the A/C compressor was though, I'm having a tough time visualizing that setup...

[AHenry014]

The s/c isnt mounted there, but the bracket is. There is no way to mount the bracket to the engine without utilizing that engine mount arm, which doubles as the bracket for the A/C compressor. ESS sells you a new mount arm modified to integrate to the s/c bracket.

[Crabfish180]

I don't have any suggestions, but I'd be interested in purchasing your bracket, as I'd like to mount a supercharger in that location. I'm not seeing how it puts it where the A/C compressor was though, I'm having a tough time visualizing that setup...

yeah the mount will be mounted where the ac compressor sits,and the supercharger will sit at the "usual place" and yeah i am buying the one from ess that they weld to the motor mount. but i can sell the whole mount settup if you like. pm me

- - - Updated - - -

The s/c isnt mounted there, but the bracket is. There is no way to mount the bracket to the engine without utilizing that engine mount arm, which doubles as the bracket for the A/C compressor. ESS sells you a new mount arm modified to integrate to the s/c bracket.

yes that is correct

[JGood325]

Ahh, gotcha, nevermind then. I came across a video on youtube where someone mounted a Rotrex c38 where the a/c compressor sits, which is a great option for those without A/C, and with limited room in the normal location (e30). Might even open up the possibility of using the stock crank pulley, although pulley size/psi would be limited with a narrow belt.

[tgriffith009]

Hey all, I put on a slightly smaller pulley when I rebuilt my bd-11 and want to make sure there is nothing else I would need to change ie, injector or tune...Its running the stock dinan chip for the cams and supercharger currently.

[BleedsBlue]

Thought I might drop this here in case anyone is interested in replicas of the now-discontinued VAC under drive pulleys: https://www.bimmerforums.com/forum/s...-discontinued)

[motorokr718]

Well i accidently blew up the turbo car...I had just put the 60lb injectors in and was retuning. Went for a short drive and when I left off the throttle after a 3rd gear pull, it popped and backfired a little as per usual, then there was a really loud bang. That's when the smoke started.I think what happened is that the big injectors flowed so much extra fuel that the TPS decel hadn't had time to adjust yet (I was less than a mile from my house). This left a huge amount of excess vapor in the intake manifold, basically a giant bomb. And when it backfired, it ignited. The PCV plate and a piece of charge pipe blew off the throttle elbow. After going over my fuel table in depth, i discovered a couple cells around 3k rpm that were far too rich in the bottom row after lowering the load scale (y axis). Guessing during decel, when it passed through there it dumped fuel and *bang*...I had primed it several times to check for leaks and had it running in my driveway for a few minutes before I set off, so I ruled out a poorly seated injector, leak, etc.

Soo...anybody want to buy a turbo kit before I swap it over to a new car?

[UnrulyGrace]

Well i accidently blew up the turbo car...I had just put the 60lb injectors in and was retuning. Went for a short drive and when I left off the throttle after a 3rd gear pull, it popped and backfired a little as per usual, then there was a really loud bang. That's when the smoke started.I think what happened is that the big injectors flowed so much extra fuel that the TPS decel hadn't had time to adjust yet (I was less than a mile from my house). This left a huge amount of excess vapor in the intake manifold, basically a giant bomb. And when it backfired, it ignited. The PCV plate and a piece of charge pipe blew off the throttle elbow. After going over my fuel table in depth, i discovered a couple cells around 3k rpm that were far too rich in the bottom row after lowering the load scale (y axis). Guessing during decel, when it passed through there it dumped fuel and *bang*...I had primed it several times to check for leaks and had it running in my driveway for a few minutes before I set off, so I ruled out a poorly seated injector, leak, etc.

Soo...anybody want to buy a turbo kit before I swap it over to a new car?

Interested, PM me more details, please!

[perj42]

if we can get a good deal for a good kit. Im sure more than just I would be down... Anyone still interested? Also from reading the posts is it safe to say the ess kit isnt a "bolt-on" kit?

[GazM3]

The only issue really with the ess kit is the resistor in the maf. The maf runs of resolution. And the lack of intwrcoolong.

Ideally this kit would be sold with an intercooler, upgraded maf and bigger injectors. The corrugated intake pipe is pretty shitty too

[dovlet]

M62b44tu 540i 6speed with 440cc injectors 3.15 lsd m5 clutch kit with flywheel 3.25" pulley 9psi TTFS tuned.

Currently doing fuel maps with Frank from TTFS. Goal is 500whp.
The only problem is 92 octane euro standart.

[GazM3]

500rwhp would be great. That's close to 600bhp. U will be certainly testing out the maf capacity if u are still running it. I'm going to be running of a Porsche 803 with 20% voltage offset so the ecu sees 4v when it's really 5v