[Taskmaster]

Any difference in terms of tuning in the MSV70 vs MSV80?

[Bob@BPC]

Originally Posted by TheAxiom

Any difference in terms of tuning in the MSV70 vs MSV80?

A few changes in the code yes, but most of the tuning maps are the same. The tool we use for bench flashing from 1996 - 2016 does almost every dme & dde, but the MSV/D80.x & MSD85.x. That needs to be flashed via can bus or over the obdII port and it takes forever.

[Eagle1oh7]

Originally Posted by Bob@BPC

We will have more detail on prices later this month if these s62 cams work out, we were thinking of doing a core charge to keep cost down for both us and the consumer. As for a Custom tune, For the N52 (If done local and no hardware needed to buy) prices start $600 & go up (power adder tune), that also includes dyno time.

EDIT: if a remote tune is needed, we can bench flash the MSV70 (x25i /x30i cars) & MSV80 (x28i) cars we can order personal flashers

Would they work on the N51 or are the cams different?

[Taskmaster]

Originally Posted by Bob@BPC

A few changes in the code yes, but most of the tuning maps are the same. The tool we use for bench flashing from 1996 - 2016 does almost every dme & dde, but the MSV80.x & MSV85.x. That needs to be flashed via can bus or over the obdII port and it takes forever.

I love this direct line of communication with you, waay better than Email!

I'm excited for a bolt on cam solution, but do you think the cam gear or cam and be physically retarded for more range of adjustment ?

Chance we will ever see a bolt on solution for those open trumpets?

[hassmaschine]

N51 cams are dimensionally the same as N52.

[Bob@BPC]

Originally Posted by Eagle1oh7

Would they work on the N51 or are the cams different?

From my understanding of the n51, is the only major change is the compression, I think the cams are the same, but I will check to see if they have the same part number.

Originally Posted by TheAxiom

I love this direct line of communication with you, waay better than Email!

I'm excited for a bolt on cam solution, but do you think the cam gear or cam and be physically retarded for more range of adjustment ?

Chance we will ever see a bolt on solution for those open trumpets?

We have the tools to machine a prototype set of cam gears, but to go into production is a different story. If we get high enough demand from cams and gears, we will think about making a set.

As for the intake stuff, we had to pause on the N52, too many race cars in the shop, and our project E30 race car is the main focus for us, trying to get it ready for track testing.

[hassmaschine]

can't you just loosen the vanos unit and rotate the camshaft? I don't think it needs a special gear. I will find out for myself soon enough.

Maybe by the time you get back to the N52, I'll have a prototype manifold ready to test..

[Bob@BPC]

Originally Posted by hassmaschine

can't you just loosen the vanos unit and rotate the camshaft? I don't think it needs a special gear. I will find out for myself soon enough.

Maybe by the time you get back to the N52, I'll have a prototype manifold ready to test..

This is true too, but some people would like something where they could see the amount of adjustment on the gear.

Originally Posted by hassmaschine

Maybe by the time you get back to the N52, I'll have a prototype manifold ready to test..

That would be awesome

[hassmaschine]

my idea was to modify a cam alignment tool - it could have preset positions for retarding the cam 5 degrees, 10 degrees, etc. It could be rented out with a core deposit.

[Taskmaster]

Originally Posted by hassmaschine

my idea was to modify a cam alignment tool - it could have preset positions for retarding the cam 5 degrees, 10 degrees, etc. It could be rented out with a core deposit.

Might be able to gain a few whp without the high cost of cams. That would be nice.

[Bimmer-Bob]

Originally Posted by Bob@BPC

BTW, for the N52 Guys, lets talk about CAMS. We are sending off a set of S62 cams to be custom grind with a company out in Cali, if we see good results out of this set, our next goal would be to have a test set made for our N52, if successful, would there be a demand for cams? Just a side note, cost would be in the $1000 - 1500 for the pair and the install for cams on the N52 is around $1300.

Definitely interested, and I'm local (at least until June/July). You guys actually have my car in the shop right now for an LSD.

[Bob@BPC]

Originally Posted by Bimmer-Bob

Definitely interested, and I'm local (at least until June/July). You guys actually have my car in the shop right now for an LSD.

[hassmaschine]

Originally Posted by TheAxiom

Might be able to gain a few whp without the high cost of cams. That would be nice.

it all depends on how physically possible it is, and also what the valve clearance is at full lift/TDC. If it's less than 1.5mm bad things will happen. I hope to measure it soon!

[Taskmaster]

HI gents, any news for us? I have a question, why does the single stage manifold to make power until redline, while the 3 stage does not? There also seems to be a 4th DISA event around there, but I haven't seen anyone "turn it off" so to speak.

[Bob@BPC]

Originally Posted by TheAxiom

HI gents, any news for us? I have a question, why does the single stage manifold to make power until redline, while the 3 stage does not? There also seems to be a 4th DISA event around there, but I haven't seen anyone "turn it off" so to speak.

Thats a very good question, I really dont have an answer for that, but I have tested the stock intake past 7000rpm and it dives just a bad as the 3 stage intake.

[Taskmaster]

Originally Posted by Bob@BPC

Thats a very good question, I really dont have an answer for that, but I have tested the stock intake past 7000rpm and it dives just a bad as the 3 stage intake.

Does it really? Are you able to move the DISA points with the MSV80? Honestly, I know these questions are silly, as if there were power on the table, you would have found it. Thanks Bob, you're not the tuner we deserve, you're the tuner we need.

[rjahl]

Originally Posted by Bob@BPC

Thats a very good question, I really dont have an answer for that, but I have tested the stock intake past 7000rpm and it dives just a bad as the 3 stage intake.

There is a "forth" stage around 6,800 RPM where the Disa closes again. You need to set that value higher. I've logged it with Testo. We also see a soft limiter kicking in around the same time. That's killing valve lift and timing.

I've logged a good increase in manifold vacuum above 6,000 RPM. Could be my stock air filter or it could be something else in the induction system. Simply math shows the stock 70MM throttle body being a little small for the volume of air we need. I want to look into this but no time right now.

[hassmaschine]

yep. the power nosedive doesn't really look like a VE limitation to me - it's something the computer is doing. I increased my "4th" stage beyond 7k rpm but I haven't been back to a dyno to measure the results.

[Bob@BPC]

Originally Posted by hassmaschine

yep. the power nosedive doesn't really look like a VE limitation to me - it's something the computer is doing. I increased my "4th" stage beyond 7k rpm but I haven't been back to a dyno to measure the results.

hmmm, looking at it now, next time I have a 3 stage car on the dyno. I will test and share.

[hassmaschine]

yeah, usually if VE is tapering off, the torque curve will start to slope downwards in a gentle arc. if you look at the end of my 330i dyno curve, it hits an abrupt wall.

[Taskmaster]

Originally Posted by Bob@BPC

hmmm, looking at it now, next time I have a 3 stage car on the dyno. I will test and share.

For real? Awesome man!

[Bob@BPC]

Originally Posted by TheAxiom

For real? Awesome man!

We sold our last 3 stage a month ago, wish we didnt. I know the R&D on the N52 is slow right now (Diesel guys taking up most of my time) But, we are working on the cams and intake stuff right now, hope I can post some more stuff soon.