How fast can an E89 go? Part Deux!
- Thread starter B21
- Start date
Our cars are too heavy to go round corners, so what else have we got to talk about?!
I tried to go round a corner in my E89 once... nothing happened, just went straight off into a ditch. Luckily we have a lot of old Roman roads around here so I've been able to avoid corners ever since.
I tried to go round a corner in my E89 once... nothing happened, just went straight off into a ditch. Luckily we have a lot of old Roman roads around here so I've been able to avoid corners ever since.
B21 said:Approx (weight is less so has a small improving effect)
240 bhp buys you about 157-160 mph...as you can see from the graph you are entering the zone where it's taking a lot more BHP to get anywhere..at the change from 59-61 mph takes 2 bhp, from 154 to 157 takes 7 bhp
That's assuming the gearing and BHP shape work for you.. :driving:
Very "interesting" reading,Peter.
But I do find it comical....
Given how you have posted all these ,graph after graph threads.
And come out with a statement saying in your esteemed calculations, a 2.0i e89,with 240bhp is good for circa 160mph
Yet,you say a z4mwith circa 350bhp, can't do 176mph
(When an Alpina can officially do 169mph with a "mere" 300bhp)
Don't you ever get fed up with the sound of your own voice,so to speak?
It must be mighty lonely,up there on your high horse,eh.
buzyg said:Is it that long?craig3.2 said:buzyg said:It's about time the E89 brigade had a good old chin wag about top speed.
Good luck. :lol: :lol: :lol:
Yeah,buzyg,it must be all of 5 minutes without a discussion on top speed,Power.....etc,etc,etc.....
Lol
Probably not ,lol
So many variables in this, wind, incline/decline etc etc. One quiet early morning on a suitable rd I had my 23i up to over 140mph! My 35i on MHD stage 2+ is still pulling really hard at 140mph!
Shall we all arrange a track /drag strip (for cars not clothes lol) day???
Shall we all arrange a track /drag strip (for cars not clothes lol) day???
mcbutler said:
Yeah,a drag strip/track day would be good,Mark....
But it wouldn't really prove much
We all know Peter's z4 is the best ever modified z Ever,don't we,lol......isn't that the point of all his comments and snidey wee digs re top speeds(176), 3 miles of road,and mentioning z4m v his e89 in one of his numerous posts.
Anyhoo,I have nothing to prove.
If Peter wants to continue his Willy waving contest.....then,let him
(Btw, mines is still bigger :rofl: )
Just that he has more money than some of the rest of us,and likes us all to know it....
first velocity squared is not acceleration and second drag is Re dependent and thus the mass of the object does not appear in any profile drag equation, except in the calculation of an object freely moving vertically in a liquid where it's the difference between mass of the body minus the buoyancy forceflybobbie said:
buzyg said:B21 said:
A lot of stats on that web site. Fun to do a side by side comparison of the MR, 35is and M40i. The old girl does better than I was expecting against the newer models.:driving:
Yes its a great resource, how they manage to populate it with all the data God only knows. :tumbleweed:
Very comprehensive and overall seems pretty accurate (from the ones I looked at)
, although there are some inconsistencies but overall a good database of info!If you want to see a better performing M40i add the US version instead....then it picks its heels up compared to the other two..especially in the energy sapping dash to 160 mph!
Of course its based on simulations and we know, empirically that the UK spec M40i are stronger than they say they are, hence why they are pretty speedy in the real world.
The only issue is that they don't allow you access to their clever modelling tool, hence my hours of fun with a spreadsheet.
