[Ville]

Very nice looking cab you have there Kaba

And it's nice to see more people from Finland here too!! I have to say I'm a bit suprised...but in a good way

We should deff have a meeting during next summer!

[uuni]

Originally Posted by Ville

Very nice looking cab you have there Kaba

And it's nice to see more people from Finland here too!! I have to say I'm a bit suprised...but in a good way

We should deff have a meeting during next summer!

We have to hurry to get all mods done so we can have a race who is the fastest of the fastest nation on earth

[Ville]

Yes, we'll see who's the fastest
But seriously, would be nice to have a meeting and maybe test each others cars
and get some ideas and so on...

This is going to be FUN and expensive

[kaba]

Ok, i went to the dyno today. I had nokia winterwheels (no spikes/pins, 225¨s,18"). The first problem was traction, it had big problems with the grip. When we got a decent run (still some lose of traction) we noticed that the engine stopped giving more power in about 5400rpm:s. The intakeair was very hot at this moment, about 79C (174F) when it was 36C (97F) when the run started. You can see this on the dip in the dyno. Is there somekind of lid that controls the incoming air?? There was one fan and the room temperature was 18C (64F). On the street it feels like it has a lot of power when the rpms is 6000-7000.

The first run was Map 5 with shell vpower-gas, the other was map 0 and then a run with map 4.
With map 5 it got 500nm (369lb-ft) and 280hp from the wheels.
map 4: 290 hp wheels and 440nm (325lb-ft) torque.
Map 0: 250 hp wheels, 434nm (320lb-ft).

Wise men! Please tell me why i got the problem with the hot intake-air! Will that explain the lower hp gains than other have achieved?

I put numbers to tell what map, in the other picture the lower HP:s are from wheels, higher wrom engine. Map 5 wheel is almost equal to Map 0 engine hp.

Thanks!
kaba

[OpenFlash]

How are you logging intake temp?

Shiv

[Mike@N54Tuning.com]

Originally Posted by kaba

Ok, i went to the dyno today. I had nokia winterwheels (no spikes/pins, 225¨s,18"). The first problem was traction, it had big problems with the grip. When we got a decent run (still some lose of traction) we noticed that the engine stopped giving more power in about 5400rpm:s. The intakeair was very hot at this moment, about 79C (174F) when it was 36C (97F) when the run started. You can see this on the dip in the dyno. Is there somekind of lid that controls the incoming air?? There was one fan and the room temperature was 18C (64F). On the street it feels like it has a lot of power when the rpms is 6000-7000.

The first run was Map 5 with shell vpower-gas, the other was map 0 and then a run with map 4.
With map 5 it got 500nm (369lb-ft) and 280hp from the wheels.
map 4: 290 hp wheels and 440nm (325lb-ft) torque.
Map 0: 250 hp wheels, 434nm (320lb-ft).

Wise men! Please tell me why i got the problem with the hot intake-air! Will that explain the lower hp gains than other have achieved?

I put numbers to tell what map, in the other picture the lower HP:s are from wheels, higher wrom engine. Map 5 wheel is almost equal to Map 0 engine hp.

Thanks!
kaba

Is it possible to find a dynojet?

It sounds like you are using a load dyno, and the loading may be set too high, or you should try a lower gear. If IAT is getting up to 180 degrees the JB3 will cut boost down to almost stock levels as a safety feature. Stronger fans may help as well.

Mike

[Tortfeasor 335xi]

Are you logging A/F ratios with your dyno pulls? Could you have a soon to fail fuel pump?

[kaba]

thx for replys.

shiv: The tempometer was put inside the bmw grills.
Mike: Dynojet is the file? is so, ill ask for it.. Think it was .dat.
laloosh: Dont know what kind, have to ask it aswell.
Tort: A/F ratios? Havent any symptoms in my car, what would it do if the fuel pump had a soon failure? On the road it has good power up to redline and its a huge cap compared to stock.

kaba

[uuni]

kaba check your PM inbox

[Ramppo]

kaba, i don`t want mock anybodys business but i took my car to that same dyno last November now iam no expert but i think that it was not done with expertise. The computer stop drowing the diagram line around 4500 rmp:s for some reason, then the guy took a pen and drew the rest of the line by hand and said that the line would of been around here and the Hp:s aroud here and so on.
The other dyno that i talked you about in my mail, i took my car there twice first with dinan stage 2 and then with stage 3 and as far as i know it was very professional the result was both times allmost the same as Dinan said it would be.

Yes it would be nice to have a meeting count me in!

[kaba]

ok guys! Ill take my car to that other dyno next time, first i need the summertyres (and maybe 1.3 update? ).

Tomorrow to Bansko, Bulgary for one week..Dont know if they have internet there ?

kaba

[hotrod182]

Originally Posted by kaba

thx for replys.

shiv: The tempometer was put inside the bmw grills.
Mike: Dynojet is the file? is so, ill ask for it.. Think it was .dat.
laloosh: Dont know what kind, have to ask it aswell.
Tort: A/F ratios? Havent any symptoms in my car, what would it do if the fuel pump had a soon failure? On the road it has good power up to redline and its a huge cap compared to stock.

kaba

It is more important to know what your IATs are. However, you can pretty much figure the IATs would be more than your ambient at no boost, and then rockets up higher from there on. On my 1/4 mile run, the IAT went from about 66F to around 128F. And thats after going to redline in 3rd, and then running 4th gear to around 120mph. I don't understand how the grill temperatures would rise though a run though. Maybe you can elaborate on that.

Here is a video showing IATs in 58F ambient temperature using the new BMS tuning gauge:

Cold ambient temps are super helpful. You not only have the colder intake temps, but the intercooler is so much more effective. I was testing the other night in 47F temps and during normal in town boost levels, the IATs were down in the 50-60F range! Only after full 1/4 mile pulls would it get into the 120F temp range.

Here are some map#6 runs in the 114-115mph range on 91 octane! Theoretically these would be 12 flat high 11s with traction at a drag strip. I am almost tempted to throw on my DRs to show you some 12.0-12.1 qtr mile times on the street, on 91 octane! And these runs were made with barely over 12 psi of boost.

Here you can see the boost readouts on the BMW tuning gauge:

These are all the consecutive runs one after another:

Conditions 47F, Sea Level. JB3 1.2 Map #6. 91 Octane.
19” Generals:

Run#1 2nd gear launch, accidental shift from 3rd right into 4th gear.
¼ mile: 12.8 seconds at 113.5 mph
1/8 mile: 8.4 secs at 85.2 mph
0-60: 4.3 sec
60ft: 2.1 sec

Run#2
¼ mile: 12.6 seconds at 114.8 mph
1/8 mile: 8.2 sec at 93.2 mph
0-60mph: 4.2 sec

Run#3:
¼ mile:12.6 seconds at 115.2 mph
1/8 mile: 8.3 sec at 92.1 mph
0-60mph: 4.3 sec
60ft: 2.1 sec

Run#4
¼ mile: 12.7 seconds at 114.8 mph
1/8 mile: 8.4 sec at 91.8 mph
0-60mph: 4.4 sec
60ft: 2.1 sec

Run#5 accidentally shifted straight from 3rd to 4th
¼ mile: 12.8 seconds at 113.2 mph
1/8 mile: 8.4 sec at 89.1 mph
0-60mph: 4.4 sec
60ft: 2.1 sec

Run#6
¼ mile: 12.7 secs at 114.2 mph
1/8 mile: 8.3 sec at 90.8 mph
0-60mph: 4.4 sec
60ft: 2.1 sec

Run#7
¼ mile: 12.6 seconds at 114.6 mph
1/8 mile: 8.3 sec at 91.9 mph
0-60mph: 4.3 sec
60ft: 2.1 sec

The point is, you could not be running these numbers with no less than 350-360rwhp+. So get your temperature thing figured out, and if the dyno operator has insufficient fans, etc. Then don't worry about it, as long as the car pulls great in the real world, on the road. I seriously hope some of these 390HP (dyno tested) cars on 91 octane that live around me can hit me up, so we can see how badly they walk away from my car. Don't get too caught up in these dyno numbers, there are so many variables. Get yourself a Vbox and test your car. We all know what a stock one will do. Or test with the stock map, and then compare the increase. Actually, have you compared how the stock map feels compared to map#5? What does it feel like to you? The fact that you pulled on that new M3 should give you a pretty good idea that you have a HP increase substantially more than just 30 or 40 hp. But again, 40HP gain with hot IATs? Nothing so surprising about that anyways.

[kaba]

thanks hotrod for good info! Ive tested the in real world map 0 and map 5, the difference is very great. It feels like a beast after map 0. When i figure the IAT-problem i will test the other dyno (with better fans etc). The numbers arent important, but somehow i still want to know how much they show ..

kaba

[RBBMWE46M3]

Originally Posted by hotrod182

It is more important to know what your IATs are. However, you can pretty much figure the IATs would be more than your ambient at no boost, and then rockets up higher from there on. On my 1/4 mile run, the IAT went from about 66F to around 128F. And thats after going to redline in 3rd, and then running 4th gear to around 120mph. I don't understand how the grill temperatures would rise though a run though. Maybe you can elaborate on that.

Here is a video showing IATs in 58F ambient temperature using the new BMS tuning gauge:

Cold ambient temps are super helpful. You not only have the colder intake temps, but the intercooler is so much more effective. I was testing the other night in 47F temps and during normal in town boost levels, the IATs were down in the 50-60F range! Only after full 1/4 mile pulls would it get into the 120F temp range.

Here are some map#6 runs in the 114-115mph range on 91 octane! Theoretically these would be 12 flat high 11s with traction at a drag strip. I am almost tempted to throw on my DRs to show you some 12.0-12.1 qtr mile times on the street, on 91 octane! And these runs were made with barely over 12 psi of boost.

Here you can see the boost readouts on the BMW tuning gauge:

These are all the consecutive runs one after another:

Conditions 47F, Sea Level. JB3 1.2 Map #6. 91 Octane.
19” Generals:

Run#1 2nd gear launch, accidental shift from 3rd right into 4th gear.
¼ mile: 12.8 seconds at 113.5 mph
1/8 mile: 8.4 secs at 85.2 mph
0-60: 4.3 sec
60ft: 2.1 sec

Run#2
¼ mile: 12.6 seconds at 114.8 mph
1/8 mile: 8.2 sec at 93.2 mph
0-60mph: 4.2 sec

Run#3:
¼ mile:12.6 seconds at 115.2 mph
1/8 mile: 8.3 sec at 92.1 mph
0-60mph: 4.3 sec
60ft: 2.1 sec

Run#4
¼ mile: 12.7 seconds at 114.8 mph
1/8 mile: 8.4 sec at 91.8 mph
0-60mph: 4.4 sec
60ft: 2.1 sec

Run#5 accidentally shifted straight from 3rd to 4th
¼ mile: 12.8 seconds at 113.2 mph
1/8 mile: 8.4 sec at 89.1 mph
0-60mph: 4.4 sec
60ft: 2.1 sec

Run#6
¼ mile: 12.7 secs at 114.2 mph
1/8 mile: 8.3 sec at 90.8 mph
0-60mph: 4.4 sec
60ft: 2.1 sec

Run#7
¼ mile: 12.6 seconds at 114.6 mph
1/8 mile: 8.3 sec at 91.9 mph
0-60mph: 4.3 sec
60ft: 2.1 sec

The point is, you could not be running these numbers with no less than 350-360rwhp+. So get your temperature thing figured out, and if the dyno operator has insufficient fans, etc. Then don't worry about it, as long as the car pulls great in the real world, on the road. I seriously hope some of these 390HP (dyno tested) cars on 91 octane that live around me can hit me up, so we can see how badly they walk away from my car. Don't get too caught up in these dyno numbers, there are so many variables. Get yourself a Vbox and test your car. We all know what a stock one will do. Or test with the stock map, and then compare the increase. Actually, have you compared how the stock map feels compared to map#5? What does it feel like to you? The fact that you pulled on that new M3 should give you a pretty good idea that you have a HP increase substantially more than just 30 or 40 hp. But again, 40HP gain with hot IATs? Nothing so surprising about that anyways.

+1

[hotrod182]

I'm tempted to log IATs on some runs with the stock setup, and then open element. I don't have any DCIs, so maybe I will just take the air box lid off to simulate the underhood temperature scenario. I'm thinking at slower speeds, lower boost levels, the stock airbox will have a measurable advantage. I did some 1/4 mile tests, and at least on my car, it went slower with the open element. Of course on a dyno, or with the hood open, the DCIs probably have the advantage. I am just interested in on the road performance though.

[kaba]

back from the mountais with some fever...well, the dyno is MaHa LPS 13. And i got the .dat files, how do i open them?

[kaba]

So, the summer season has begun !! (=summer tyres).

Ive been testing the car now with racechrono + 5HZ GPS. With the winter tyres i got 5.3 sec 0-100kmh (0-62mph) and was afraid that the heave summer wheels would be over 6.0secs. But surprisingly i got 4.9secs 0-100kmh with map 6 (+3 celsius, pretty optimal). 5.0 secs with map 4 and 6.1 secs with map 0 (standard). Im pretty satisfied with the map 6 result, the 0-60ft was 2.2secs.
I also tested 1/4 mile, but didnt get a good launch because the tyres got wet before the launch, the result was 13.5secs, 175km trap (109mph), 0-100km/h 5.4 secs. Fule used was vpower 99+octane (93-94 us).

The wheels must be lighter than i thought. Havent got the answer about weight (tried to email foose and MHT one week ago) yet.

Whats the most important is that the difference is great between map 6 and 0 ...

Still thinking about the LSD, on straight it does give power to both wheels now when all the electronic helps are turned of (two black strips).
Also thinking about new wheels, 19" would be the size.

Maybe fmic and catless DP's also. The tunebug is a bad disease

[ultimateendz]

Originally Posted by kaba

So, the summer season has begun !! (=summer tyres).

Ive been testing the car now with racechrono + 5HZ GPS. With the winter tyres i got 5.3 sec 0-100kmh (0-62mph) and was afraid that the heave summer wheels would be over 6.0secs. But surprisingly i got 4.9secs 0-100kmh with map 6 (+3 celsius, pretty optimal). 5.0 secs with map 4 and 6.1 secs with map 0 (standard). Im pretty satisfied with the map 6 result, the 0-60ft was 2.2secs.
I also tested 1/4 mile, but didnt get a good launch because the tyres got wet before the launch, the result was 13.5secs, 175km trap (109mph), 0-100km/h 5.4 secs. Fule used was vpower 99+octane (93-94 us).

The wheels must be lighter than i thought. Havent got the answer about weight (tried to email foose and MHT one week ago) yet.

Whats the most important is that the difference is great between map 6 and 0 ...

Still thinking about the LSD, on straight it does give power to both wheels now when all the electronic helps are turned of (two black strips).
Also thinking about new wheels, 19" would be the size.

Maybe fmic and catless DP's also. The tunebug is a bad disease

lol...i hear u fellow e93er....it bit me and sucked me dry...http://www.e90post.com/forums/showthread.php?t=247438

[kaba]

Tried a couple of more runs, best results were 4.9 0-100kmh (0-62mph), 1/4mile 13.1 with 178km/h trapspeed. Still some wheelspinning. Had normal tire pressures, 2.8bars around and the same 20" wheels.

Now waiting to the 1.3 to be released, still searching for lighter wheels. Tint 35% is coming to all windows except the windshield next week. Bilstein PSS is coming in about two weeks aswell