Which Z4 is the fastest?

[craig3.2]

“The Old Runway that used to be in use was 1.5 mike's long ,the ones currently in use are only around 2/3 of a mile,two are still in use for public flights “





Strangely tonight when I used the Ordnance Survey just now it shows that East Fortune airport was only ever 1.2 miles long? Not 1.5 miles?

That includes the 450m of Cold War extension on the other side of a B road…so assuming you could have used the whole of the available length without flying across the B road, it would have been 1.2 miles - 450m = 0.9 miles which I think is quite a bit less than 1.5 miles?

Maybe a “mike’s” a different unit of measure?

The East Fortune flying web site states their longest runway is 450 metres not 2/3rd of a mile which I think is around 1070 meters?

Seems that your arithmetic is out by about 1/3 to 1/2?

Peter,clearly meant to be miles,not mike's,lol

As said,I was told at the time,the available track where I did my max run,back in 2012,was 1.5 miles long....I didn't go measure it,ffs!
I am not bothered quite frankly if you or your groupies who like to have a go at Every thing I post, pretty much

Fact,I had My z4m de limited in 2012, and shortly after took it to an old Airstrip,and maxed out at 176.2 on a GPS satnav unit.
I was told said airstrip was 1.5 miles long,(and it was shortly after being reduced to 0.8 of a mile),which was thought to be enough(1.5miles,as I was told it was),and it was(just) long enough.
END OF.
Don't give a hoot if you believe me or not.
All I posted was that was what they can do,on the Fastest z4 speeds thread.
Quite frankly fed up with the same old idiots trying to bully me off the Forum by having a go at Every other post I make,which,tbf, isn't alot,for this exact reason.
Got far more serious things going on in the real world to give a s**t if the Font of all Knowledge,or anyone else, believes me or not!!

 

[craig3.2]

Yeah, pretty true.
Just after I had my speed limiter taken off,I took it to East Fortune Airfield,and got to use a bit of old runway now used for trsckdays...
Got the car upto 176.2 mph,with a couple hundred rpm to go before the rev limiter
Ran out of Runway,for available braking distance,as was still on Standard brakes then,back in 2012.
Car felt ok,but definitely at its limits with a soft top z4m.imo.

Wow, how long was the straight? :?
Rob

That’s what got me .. and why I used the lambo quoted as it was easier without digging figures

You see a Z4M will hit the quarter mile @ 113mph in 13.8secs according to road tests ( from accelerationtimes.com )

It will then take around 2secs to add each additional 10mph which gets longer as the speed increases .. but let’s leave it at 2sec for each 10mph increment to work out distance travelled at 120mph in 2 secs you would cover 54m/s .108m at 130 116m etc as the distance travelled increases so at 160 you’d cover 144m in 2 secs

So very roughly to get from 114mph @ 1/4mile to 176mph you would need some 800m/2624ft added to 1320ft for the 1/4mile which is 3844ft/0.73mile which is generous as time/distance between each increment will increase and my calcs assume 10mph increments in 2 secs

So, by my rough calcs we are looking at the very least 8/10mile to hit v/max ( likely in reality more ) and then you need to decelerate which add another 4/10 mile perhaps

I’d imagine you’d need at least a 1.5 mile runway to achieve a v/max of 176mph in a Z4m and probably more with any safety net

Which is why a questioned it, not because of having a pop at Craig I’m just trying to understand how it’s possible and what space you’d need to do it and having seen multiple reports of people’s top speeds in Z4M’s I’ve never seen anyone reporting over 176mph .. plenty in the high 160’s though

Andy,1.5 miles was the length of the airstrip I used,and it was enough!
I referred to the Murcielago as Analyst had called me a liar,which isn't the case.
So I said,they were also not there when I did 197 in a Lambo,but didn't mean it didn't happen,just cause they were not there.
That was my point!!

The lambo can do 212mph and only 2 UK tracks can get it to 200+ so I was told, by the Instructor,and at the track I was at,was told it's very difficult to get it to 200, and that I did well getting close, after failing to get more than an indicated 197mph,on the Speedo.

Also,re the z4m,other sites actually quote the 1/4 Mile as speed of around 1.07 upto as much as 118mph!. And I put up earlier,what mine had actually done.

After all the abuse headed my way,I deliberately didn't name the track I did that in the Lambo,as can't be bothered with more inane abuse/pops at me!

 

[earthdweller]

I’m not having a go at you Craig, nor have I given you any abuse in any form

I accept fully that you have the fastest zed in the world

We agree on that

I accept fully that you are the one of, if not the best, driver on the forum, certainly right up there with professional racing drivers, as you correctly state

So, non of that is in dispute



I’m just interested in how fast your car actually is ( and how good the brakes are ) because, being a simpleton, and not blessed with your driving god status, I’m struggling understand how you managed to get a Zed from 0-176mph-0 in the distance you obviously did

I’ve obviously missed something because at 176mph you would be covering a mile in under 22secs and it would take you nearly half a mile to stop from that speed

That’s what’s confusing me .. I’d just like you to help me understand how you did it

 

[B21]

[/quote]

Andy,1.5 miles was the length of the airstrip I used,and it was enough!

[/quote]

Here is some Google pictures from September 2011 that shows the runway which was only 1.2 miles long in its heyday, is bisected by the said roundabout. So there was (in September 2011 a few months before the 176 mph record breaking attempt) only 1,500 meters of runway for accelerate-stop.. :tumbleweed: :thumbsdown:

 

[B21]

Interesting video of a 35is which is pretty close performance wise to a Z4M and a M40i doinf a dash to 155 mph.

https://www.youtube.com/watch?v=C33TgVrjESg

The video shows time and trip meter.

So M40i 0-155 mph in 28 seconds having travelled 1,400 meters

35is 0-155 mph in 36 seconds having travelled 1,700 meters, which is prettty close to what Commander Straker's SHADO computer said.

So the facts in 2011-2012 are

The available runway was only 1,500 meters, not 1.5 miles and in fact the runway was never 1.5 miles in length ever.

A similar performing car required 1,700 meters to get to 155 mph still 21 mph short of Craig3.2 Z4M, having gone across the roundabout 200 meters back..

As an aside those M40i horses seem pokier than the 35is horses

 

[Argyll Andy]

As an aside those M40i horses seem pokier than the 35is horses

That’s more of a time difference than I was expecting Peter. As I’ve said previously, to me, the M40i seems notably quicker than my 35iS but that’s more than I thought. *IMO 6 seconds is a lot time at those speeds.

So now back to the OP’s point, in stock form, MINE especially since it’s a blue one :lol:

EDIT : sorry, should’ve said 8 seconds :headbang:

* IMO 6 seconds is a lot time at those speeds

 

[Scubaregs]

So now back to the OP’s point, in stock form, MINE especially since it’s a blue one :lol:

Impressive, but if slowest colour known to man can do that, imagine what a red could do.

 

[B21]

As an aside those M40i horses seem pokier than the 35is horses

That’s more of a time difference than I was expecting Peter. As I’ve said previously, to me, the M40i seems notably quicker than my 35iS but that’s more than I thought. IMO 6 seconds is a lot time at those speeds.

So now back to the OP’s point, in stock form, MINE especially since it’s a blue one :lol:

Yes given that's its supposed to be almost the same power 335 bhp and 500 nm and the 35is is 335 and 500 nm that's kind of fishy..its not that the BUF is any better drag wise! :rofl: :driving:

Better upgrade the turbo's..again.. :fuelfire:

 

[Argyll Andy]

imagine what a red could do

I’ll watch it in my rear view mirror and report back oke: :fuelfire:

 

[Scubaregs]

I'll bring the bike.

Dammit, it's sodding blue.........

 

[Argyll Andy]

As an aside those M40i horses seem pokier than the 35is horses

That’s more of a time difference than I was expecting Peter. As I’ve said previously, to me, the M40i seems notably quicker than my 35iS but that’s more than I thought. IMO 6 seconds is a lot time at those speeds.

So now back to the OP’s point, in stock form, MINE especially since it’s a blue one :lol:

Yes given that's its supposed to be almost the same power 335 bhp and 500 nm and the 35is is 335 and 500 nm that's kind of fishy..its not that the BUF is any better drag wise! :rofl: :driving:

Better upgrade the turbo's..again.. :fuelfire:

Even more so then, for exactly the same headline figures *6 seconds is an awfully long time :driving:

You getting an aftermarket bonnet scoop and camel hump to house these even hugerer mahoosive turbos? oke: :rofl:

EDIT : sorry, should’ve said 8 seconds :headbang:

* for exactly the same headline figures *6 seconds is an awfully long time

 

[B21]

imagine what a red could do

I’ll watch it in my rear view mirror and report back oke: :fuelfire:

Andy you can relax, Scubaregs is in a red car..these suffer from ‘red shift’ where photon energy is decaying…whereas blue is part of ‘blue shift’ ie photon energy increasing..therefore your car is quicker :driving:

 

[Argyll Andy]

I'll bring the bike.

Dammit, it's sodding blue.........

I’ve said earlier in this post apples and oranges ain’t a fair comparison

And yes, I’m glad you saw sense and got the faster blue for your other BMW oke:

 

[B21]

That’s more of a time difference than I was expecting Peter. As I’ve said previously, to me, the M40i seems notably quicker than my 35iS but that’s more than I thought. IMO 6 seconds is a lot time at those speeds.

So now back to the OP’s point, in stock form, MINE especially since it’s a blue one :lol:

Yes given that's its supposed to be almost the same power 335 bhp and 500 nm and the 35is is 335 and 500 nm that's kind of fishy..its not that the BUF is any better drag wise! :rofl: :driving:

Better upgrade the turbo's..again.. :fuelfire:

Even more so then, for exactly the same headline figures 6 seconds is an awfully long time :driving:

You getting an aftermarket bonnet scoop and camel hump to house these even hugerer mahoosive turbos? oke: :rofl:

Really pissed that those pesky E85 guys and the 23i 30i E89s can have a nice supercharger….looking forward to seeing Patriot 66 with boost :driving: :driving:

Maybe I can supercharge it and turbo charge it ? :tumbleweed: :rofl:

 

[Argyll Andy]

looking forward to seeing Patriot 66 with boost

Looking forward to seeing that too, my only hope is that Si is spending that much money on this and new wheels etc he’s no money left for fuel!!!

 

[B21]

looking forward to seeing Patriot 66 with boost

Looking forward to seeing that too, my only hope is that Si is spending that much money on this and new wheels etc he’s no money left for fuel!!!

New wheels? Did I miss that?

 

[Argyll Andy]

looking forward to seeing Patriot 66 with boost

Looking forward to seeing that too, my only hope is that Si is spending that much money on this and new wheels etc he’s no money left for fuel!!!

New wheels? Did I miss that?

Yip, https://z4-forum.com/forum/viewtopic.php?p=1876390&hilit=162#p1876390

 

[B21]

Looking forward to seeing that too, my only hope is that Si is spending that much money on this and new wheels etc he’s no money left for fuel!!!

New wheels? Did I miss that?

Yip, https://z4-forum.com/forum/viewtopic.php?p=1876390&hilit=162#p1876390

Ah the little debil :driving:

Wonder how they will look in some form of black..which is what Si will use..?/ :tumbleweed:

Going to look sweet…definitely another good excuse for more boost..roll on 2022 :driving:

 

[Chippie]

Interesting video of a 35is which is pretty close performance wise to a Z4M and a M40i doinf a dash to 155 mph.

To me it looks like the m40i keeps in the power band more, where the 35is seems to over rev so not keeping within the maximum available torque.

 

[Argyll Andy]

To me it looks like the m40i keeps in the power band more, where the 35is seems to over rev so not keeping within the maximum available torque

It also means you were holding me up on the NC500 oke: :rofl: :rofl: