PP-Performance 800bhp limiter removed (pic)

[M5Rlz]

Originally Posted by M-bitious

I honestly never heard of this and I don't understand the logic. In my car the M drivers pack was limited to 314kmh speedo or true 305 km/h. I had the car reporgrammed by BMW back to the 155mph limiter. Then PP-Performance removed it. I have not been able to take the car over the limit by a single mile. On my car for sure the limiters are gone.

Like I said i've seen higher so I'm not sure how high one could keep going before it corrects to 155 which is why I personally am just skeptical of any company that says they've got it off completely.

[Tom C]

I have heard of some of the German manufacturers letting the car go past a 155mph limiter by a few mph to allow for different tire height as tread wear occurs. At least that was an excuse for allowing it to exceed the old gentleman's agreement that was instiuted to pacify their Green Party.

[gmd2003]

Originally Posted by 335iRlz

The speedo on our cars should at some point self correct its back to 155...

So if I mash on it it'll go 160+ but if I were to maintain those speeds eventually the speedo/hud would realize I've always been going 155 and start to bring itself down. Or at least thats how someone explained it to me.

Sorry this does not occur , I'm telling you I have over 20 Vbox runs that have the limiter kick in at 155mph GPS speed , if you are going down hill it will go a couple over thusly with the 4% speedo error our cars have is mid 160's . This is assuming you have stock tire diameter of course. I spent 500 km on the German autobahn in an M6 so I know this without a doubt .
George

[M-bitious]

I am with you. I never heard of this.
Also can he explain how I hit 204 mph on the speedo.
BTW I will take the car way beyond that soon and record it.

[RPiM5]

Originally Posted by M-bitious

BTW I will take the car way beyond that soon and record it.

Yes! Dude, I hope that you are able to break 215mph indicated on the instrument panel. Because that's what a delimited E60 M5 Dinan Stroker did once on a rally that I was on.

[akh23456]

Congrats man ,the best way to prove it is with a GPS like VBOX showing the MPH or Km/h.

[Boss330]

Originally Posted by 335iRlz

The speedo on our cars should at some point self correct its back to 155...

So if I mash on it it'll go 160+ but if I were to maintain those speeds eventually the speedo/hud would realize I've always been going 155 and start to bring itself down. Or at least thats how someone explained it to me.

Who explained this to you?

I have never heard of a speedo that "auto corrects". How would that work out for the customer driving along at a steady rpm and gear and suddenly the speedo goes from 167MPH down to 155MPH (but car is still in same gear and RPM)...

I'm not buying that explanation without some proper technical backup and info from a reliable source. Every speedometer reads high to avoid getting the driver in a speeding offence situation. Usually this is around 3-5% more than actual speed. This is also what is seen on the limited M5's that reads between 167-172MPH at the limited 155MPH.

The 327km/h reading means around 315km/h (197MPH) true speed with a 4% correction. Definitely over the speed limiter in the "delimited" M5.

If it will stop at 320km/h, as AC Schnitzer found out with their delimited M6 GC, will be interesting to see (second speed limiter set at 320km/h in the DCT transmission).

[M-bitious]

I hope to find out soon. I have enough power to go faster than 200 miles per hour easily. Remember 327 kmh in sixth and not yet at the rev limiter with seventh to go. So with 4% margin the speedo should read 333 kmh.
We will see.

[M5essex]

Originally Posted by Boss330

Who explained this to you?

I have never heard of a speedo that "auto corrects". How would that work out for the customer driving along at a steady rpm and gear and suddenly the speedo goes from 167MPH down to 155MPH (but car is still in same gear and RPM)...

I'm not buying that explanation without some proper technical backup and info from a reliable source. Every speedometer reads high to avoid getting the driver in a speeding offence situation. Usually this is around 3-5% more than actual speed. This is also what is seen on the limited M5's that reads between 167-172MPH at the limited 155MPH.

The 327km/h reading means around 315km/h (197MPH) true speed with a 4% correction. Definitely over the speed limiter in the "delimited" M5.

If it will stop at 320km/h, as AC Schnitzer found out with their delimited M6 GC, will be interesting to see (second speed limiter set at 320km/h in the DCT transmission).

I understood speedos have as much as 10%+ inaccuracy readings. Mainly due to wheel and tyre variables... So that's why most speed cameras in the uk allow you 10% over the limit to allow for this. So if eu M5s are reading 172mph, which many have confirmed, this is in fact only 155mph...? So if you think you are doing 100mph, you're in fact only doing 90mph...? GPS is the way to confirm this of course.

[Used2be]

Originally Posted by M-bitious

I hope to find out soon. I have enough power to go faster than 200 miles per hour easily.

This is something I've wanted to do for a long time, hit 200 mph in a street driven car. I'm excited for you! I'm sure many of you already know this, but I thought I'd post the link for some that may not. The M5 differential is 3.15:1, 1st gear 4.81, 2nd gear 2.59, 3rd gear 1.70. 4th gear 1.28, 5th gear 1.00, 6th gear .84, and 7th .67. Use those ratios and the stock rear tire diameter of 27.1" to plug into this calculator to find your speed in any gear. I believe your rpm in whatever gear will give you an accurate speed if you work up a chart to cover the gears and rpm you'll be running at. The tach has no fudge factor, and the gearing is the gearing. The variable would be the tire if you've fitted other than stock. Oh, and I suppose in M-btious's case, if the tires are spinning up at 190 mph!!!

This is the link to the calculator.

http://www.apexgarage.com/tech/gear_ratios.shtml

[avlnch]

Originally Posted by M-bitious

I hope to find out soon. I have enough power to go faster than 200 miles per hour easily. Remember 327 kmh in sixth and not yet at the rev limiter with seventh to go. So with 4% margin the speedo should read 333 kmh.
We will see.

The M5's 7th gear is an overdrive gear. In other words, the engine will reach it's maximum speed at the top of 6th gear.

From there you could click into 7th, but you wouldn't be able to reach the top of gear seven.

Drive safe..

[M5Rlz]

Originally Posted by Boss330

Who explained this to you?

I believe it someone on here mentioned it and it sounded plausible because I was under the impression when I first got the car you'd hit 155 and not go any faster, but was shocked when the speedo/hud kept going...

[Spinny02]

Originally Posted by 335iRlz

The speedo on our cars should at some point self correct its back to 155...

So if I mash on it it'll go 160+ but if I were to maintain those speeds eventually the speedo/hud would realize I've always been going 155 and start to bring itself down. Or at least thats how someone explained it to me.

I wonder what the distance would be. I have hit 270kmh ( limit on my us spec -155 ture) and kept it there for a 2 min +-with no auto correct kicking in

[RPiM5]

Originally Posted by Used2be

This is something I've wanted to do for a long time, hit 200 mph in a street driven car. I'm excited for you! I'm sure many of you already know this, but I thought I'd post the link for some that may not. The M5 differential is 3.15:1, 1st gear 4.81, 2nd gear 2.59, 3rd gear 1.70. 4th gear 1.28, 5th gear 1.00, 6th gear .84, and 7th .67. Use those ratios and the stock rear tire diameter of 27.1" to plug into this calculator to find your speed in any gear. I believe your rpm in whatever gear will give you an accurate speed if you work up a chart to cover the gears and rpm you'll be running at. The tach has no fudge factor, and the gearing is the gearing. The variable would be the tire if you've fitted other than stock. Oh, and I suppose in M-btious's case, if the tires are spinning up at 190 mph!!!

This is the link to the calculator.

http://www.apexgarage.com/tech/gear_ratios.shtml

I hit 213mph in my old E60 M5 on 7 different occasions. De-limited and modded of course. The last time I did it was when I had the fully catless headers installed. The car was so much faster with the headers, it was crazy. All on stock Michelin PS2's. I'm very confident that the PSS's are capable of those speeds. Also OP, make sure your tire pressure is set to a good pressure before going up to those high speeds. The pressure can affect your acceleration and top speed.

Oh yeah and it's so funny that once you've been above 200mph in a road car, even slowing down to 130mph feels like your going 60mph. It's the weirdest feeling. Lol!

[wisesoul]

HOLY GUACAMOLE. It has been done. There is hope

[M-bitious]

Originally Posted by avlnch

The M5's 7th gear is an overdrive gear. In other words, the engine will reach it's maximum speed at the top of 6th gear.

From there you could click into 7th, but you wouldn't be able to reach the top of gear seven.

Drive safe..

We will see. Maybe you are right, because I still had a little over 700 rpm left in sixth, but my car has over 800 bhp and close to 900Nm of torque, so it just might pull a bit more in seventh.

[Boss330]

Originally Posted by avlnch

The M5's 7th gear is an overdrive gear. In other words, the engine will reach it's maximum speed at the top of 6th gear.

From there you could click into 7th, but you wouldn't be able to reach the top of gear seven.

Drive safe..

Both 6th and 7th gear are overdrive gears on the M5. 5th is the direct 1:1 ratio (as per the post above your post).

If you have enough power there should be no reason why the car shouldnt continue to accelerate in 7th gear as well. I believe the stock M5 hasn't got enough power to take advantage of the longer gearing in 7th, but with the OP having "a bit" more than stock he could very well be able to keep gaining speed in 7th

[Used2be]

Originally Posted by RPiM5

I hit 213mph in my old E60 M5 on 7 different occasions. De-limited and modded of course.

I'm jealous! Before owning the M5 the best I'd done in a car on the street was 130. I'm thinking the stock F10 M5 might get into the 190s when de-limited, and with just catless downpipes and a fueling adjustment to take advantage should push past 200!!

[DrewM5]

Originally Posted by 335iRlz

I believe it someone on here mentioned it and it sounded plausible because I was under the impression when I first got the car you'd hit 155 and not go any faster, but was shocked when the speedo/hud kept going...

There is a big difference between "that is how someone explained it to me" and "I believe someone here mentioned it".

[M5Rlz]

Originally Posted by DrewM5

There is a big difference between "that is how someone explained it to me" and "I believe someone here mentioned it".

Either way both are probably wrong so does it matter lol... I get no ego boost out of being right nor would I be butt hurt if I just misinterpreted it lol.

[mastek]

The last time I flew to New York ....I hit 623 mph

Oh BTW, if u have a tire blow out @ 217 mph ....ur gonna be DEAD along with whoever is dumb enough to be in your car.

[M-bitious]

At that kind of speed I hope the plane is technically well checked and the pilot an experienced one. But I didn't know tires can blow out