[duncanbanana]

152 mph ,2 people in car,over 3/4 of fuel ,32 degrees C private road in France

[s_and_m]

Glad to see we are able to access private roads and controlled conditions.

Will be looking to take a short jaunt down an autobahn or two this weekend to see if the GTT pulls better than my old Cooper did (135 indicated, 126 on the satnav) .

But I'll only attempt a fast run if conditions allow.

S

[CC07ERS]

with aero kit on its less aerodynamic than a bus i want to look good @25 mph window down shades on 150mph is just madness how easy is it to die @ that speed

[s_and_m]

Often it has been said that a MINI has the drag coefficient of a common or garden house brick.

And it is well worth pointing out that speed in inappropriate places/conditions will generally result in serious consequences and I doubt if anyone using this forum would condone such behaviour.


S

[roland2003]

Top speed runs not only risk your license & life but your engine too. A modified engine is more likely to blow under these conditions than any other ,irrespective of the tuner or model of car. (though perhaps even more likely on a supercharged or turbocharged car as the gains over stock are greater). Use fuel thats not quite as good as it should be (octane) and you double the already high chance of blowing the engine up. (specifically destroying No1 piston & the engine block). Fortunatly we have not experienced this with our conversions yet, though other Mini tuners customers cars have gone this way.- Yes even JCW can go this way too.
If you have to do it (even once) add a high strentgh mix of Alden octane booster or similar. By contrast a hard blast to 100mph in the first 4 gears then holding it at 100mph on LIGHT throttle all day (if you like) is perfectly OK. Customer education is an important part of the service we provide and ensures these things dont happen (unless you ignore it of course)
Best Regards Roland GT Tuning

[R1]

Just ruined your own sales there!

No mention in my JCW S manual. If I blew it up doing high speeds on an autobahn, I'd just take it back to the dealer and get a new engine under warranty!

No reports on here of any engine blowups yet.

http://www.mini2.com/forum/mini-coop...t=engine+blown

[roland2003]

Well I could tell you of 2 UK Tuners whose engines blew, one of which we fixed for him because the tuner involved didnt want to know!! I wont name the customers or the tuners as is down to the customer to reveal. Check out NAM a few people on there have blown engines with high speed /load situations.
If you spend say £800 with us or (another tuners) 210bhp conversion you could buy a brand new engine AND have it fitted & still have big change left over from the £2700 you saved not having the JCW.On the other hand if nothing went wrong you pocket a £2700 saving on the £3500 price of the JCW. This is an old topic so I'll stop there. The important thing is to make people aware of the dangers.,and precautions that should be observed. The other thing is to make the conversion as bullet proof as possible. High temp Iridium Spark Plugs, belt snapping prevension etc all go a long way to ensuring your not going to get stuck on the side of the motorway in the first place (with or without a warranty card in hand.)
Best Regards Roland GT Tuning

[salocin]

Quote: Originally Posted by duncanbanana (original)

152 mph ,2 people in car,over 3/4 of fuel ,32 degrees C private road in France

I'm not a top speed man myself but .......... that's amazing!

Have you got something from GTT under the bonnet???

[R1]

Quote: Originally Posted by roland2003 (original)

Well I could tell you of 2 UK Tuners whose engines blew, one of which we fixed for him because the tuner involved didnt want to know!! I wont name the customers or the tuners as is down to the customer to reveal. Check out NAM a few people on there have blown engines with high speed /load situations.
If you spend say £800 with us or (another tuners) 210bhp conversion you could buy a brand new engine AND have it fitted & still have big change left over from the £2700 you saved not having the JCW.On the other hand if nothing went wrong you pocket a £2700 saving on the £3500 price of the JCW. This is an old topic so I'll stop there. The important thing is to make people aware of the dangers.,and precautions that should be observed. The other thing is to make the conversion as bullet proof as possible. High temp Iridium Spark Plugs, belt snapping prevension etc all go a long way to ensuring your not going to get stuck on the side of the motorway in the first place (with or without a warranty card in hand.)
Best Regards Roland GT Tuning

Fair point, but if I buy a car that has been officially tuned with the blessing of the manufacturer and with all that goes into the type testing of that vehicle (I work in an automotive engineering design office) and the red line has been set to a certain RPM, I would expect to be able to use the full revs availiable as long and has many times as I want to without it going bang.

[salocin]

Quote: Originally Posted by R1 (original)

Fair point, but if I buy a car that has been officially tuned with the blessing of the manufacturer and with all that goes into the type testing of that vehicle (I work in an automotive engineering design office) and the red line has been set to a certain RPM, I would expect to be able to use the full revs availiable as long and has many times as I want to without it going bang.

The subtle beauty of the GP, full BMW warranty and 5 years/ 50k free servicing!

[duncanbanana]

Quote: Originally Posted by salocin (original)

I'm not a top speed man myself but .......... that's amazing!

Have you got something from GTT under the bonnet???

Oh no , the only thing i have thats GTT under my bonnet is a oil catcher which isnt conneted up yet
At the time i did that run i had a GGR conversion (15% redution pulley and remap)Full Milltek exhaust and an Alta Indution kit , ididnt go any faster cos the M3 i was chasing (which did a speed of 168mph on private roads of course) slowed down

I now have an Alta 15% reduction pulley , Alta 3% larger lightened crank pulley Alta induction, JCW injectors , 64mmm throttle body, GRS larger intercooler, Quaife LSD , 40000V Screaming Deamon coil ,Full Milltek with straight thru centre section , Bluefin remap (soon to be changed to custom one) and a GTT oil catcher ( not connected yet) amongst other mods

[salocin]

Quote: Originally Posted by duncanbanana (original)

Oh no , the only thing i have thats GTT under my bonnet is a oil catcher which isnt conneted up yet
At the time i did that run i had a GGR conversion (15% redution pulley and remap)Full Milltek exhaust and an Alta Indution kit , ididnt go any faster cos the M3 i was chasing (which did a speed of 168mph on private roads of course) slowed down

I now have an Alta 15% reduction pulley , Alta 3% larger lightened crank pulley Alta induction, JCW injectors , 64mmm throttle body, GRS larger intercooler, Quaife LSD , 40000V Screaming Deamon coil ,Full Milltek with straight thru centre section , Bluefin remap (soon to be changed to custom one) and a GTT oil catcher ( not connected yet) amongst other mods

Hmmm, so it's going to be even faster then .... remind me to let you pass!

I would love to have a go on this private road sometime though!!!!!

[BRG/Blk Cooper S]

Quote: Originally Posted by Ven0m (original)

Heh....counting down for this thread to be locked

HI, why should this thread be locked?
If it was in regards to racing someone on an A road in the UK then fair enough.
The Autobahn still has an open limit in many places and maybe he's doing these sorts of speeds on the track.

I personally wouldn't want to go this fast in any car (let alone a Mini) on a public road, having said that the Cooper cruises very nicely at 140Kph (plenty fast enough) on the Autobahn (where allowed) on warm, dry days.

Cheers, Geoff.

[Madeira Jon]

At those speeds, I'd hate to think of the velocity of the con rods and the immense pounding the big ends are taking! They must almost be at the speed of sound!!!!

[Ven0m]

Quote: Originally Posted by drainaudio (original)

HI, why should this thread be locked?
If it was in regards to racing someone on an A road in the UK then fair enough.
The Autobahn still has an open limit in many places and maybe he's doing these sorts of speeds on the track.

I personally wouldn't want to go this fast in any car (let alone a Mini) on a public road, having said that the Cooper cruises very nicely at 140Kph (plenty fast enough) on the Autobahn (where allowed) on warm, dry days.

Cheers, Geoff.

Because so many threads have been locked already concerning threads containing over the legal speed limit....but all of these posts are on autobahns or private test tracks so its ok

[Drillslinger]

Well, I think any thread like this needs to have the accuracy of the std speedo questioned repeatedly After all, I managed to show 141mph on my digital display one morning on my way down the A63 towards Kaiserslautern (German Holiday, NO traffic ). There's no WAY I was really going that fast... (Didn't stop me from talking about it though ) So... just how inaccurate IS the MINI Speedometer at higher speeds??

[duncanbanana]

at the time mine was quite accurate to the sat nav we had in the car

[Drillslinger]

Quote: Originally Posted by duncanbanana (original)

at the time mine was quite accurate to the sat nav we had in the car

Damn

[snid]

My Cooper, on a racetrack, really struggle once it gets around 90mph. Third gear redlines at somewhere between 90 and 95mph, and once in fourth there just isn't much accelleration.

At Watkins Glen in New York, where the long straight is slightly uphill, I'd top out at a hair over 100mph on the speedo, my instructor's M3 would run out of gas at around 120mph on his speedo. We did have someone blow past us in a race prepared M3 GTR while we were going 120, the GTR must have been closing in on 150mph!

Granted, an MCS with more horsepower and different gearing should be able to go a bit faster before the acceleration tapers off...

[s_and_m]

On the way down to Nurburg we ran at 130kph were allowed and then had a short blast around the Ring. sadly my intercooler boot split so my MCS had to spend a couple of days at a dealer whilst wiaitng for a part. On the way out of Gemany we sat at 110 mph on derestricted autobahns (just keeping up with faster traffic). The S was showing 5300-5500 rpm in 6th and on the odd occasion we stretched our legs to an indicated 135mph the car felt a little breathless. Granted this was in 6th - if we had been trying for a higher max speed we would have clung on to the red line in 5th, but to be honest I couldn't see the point - and having suffered one mechanical failure on the holiday, I was keen to avoid a needless other.

S