[BigShow]

30-70 mph in 2nd gear, average of 4.6 seconds... no need for third!

[Paul Webster]

So the older box does have an advantage in the 2nd gear 30-70 test or you could call it the 3000-7000rpm test as its 10.05mph per 1000rpm

With the later box you would have to go to 7600 to reach 70 in 2nd

[BigShow]

Yup, thanks to the long gearing on the older box 2nd gear is awesome at 30-70mph, I'd like to put it through the performancebox though when I get it back.. be interesting to see what other people get especially those with over 200 whp and an old box. There are some pretty amazing cars with similar 30-70mph times:

Impreza STI: 5.0
Evo VIII: 4.9
Exige MK2: 4.8
RS4: 4.1
Z4 M Coupe: 4.6

But the ones to beat are:

599 GTB: 2.6
LP640: 2.8
Zonda: 2.6
Carrera GT: 2.7
Veyron: 2.0

Come on Paul, load up the nitrous and see if you can wup the Veyron between 30-70!

[Aberdeen Al]

I tried the 30 ~ 70mph in 3rd gear tonight and got the following results:

Run 1: 7.51 secs
Run 2: 6.96 secs
Run 3: 6.66 secs
Run 4: 6.84 secs

Judging by the times posted by others I think the above times are disappointing!

Car Spec:

MCS 2003
GTT220+
GRS I/C
GTT manifold
GTT 1% lightened crank wheel
Lohen enlarged TB
JCW Exhaust
JCW injectors

1/2 tank of VPower fuel
Outside temp: 4 deg C

Hopefully these times will improve once I've had my cylinder head, cam & larger injectors fitted at the end of the month!!

[BigShow]

Those do seem low cosidering the mods you have mate. Especially with an outside temp of 4 deg C! You must be running 230 bhp with your mods surely?? Were you on your own or did you have a passenger?

[Aberdeen Al]

Quote: Originally Posted by BigShow (original)

Those do seem low cosidering the mods you have mate. Especially with an outside temp of 4 deg C! You must be running 230 bhp with your mods surely?? Were you on your own or did you have a passenger?

On my own !

[MINI-Morgan]

Quote: Originally Posted by Aberdeen Al (original)

I tried the 30 ~ 70mph in 3rd gear tonight and got the following results:

Run 1: 7.51 secs
Run 2: 6.96 secs
Run 3: 6.66 secs
Run 4: 6.84 secs

Judging by the times posted by others I think the above times are disappointing!

Car Spec:

MCS 2003
GTT220+
GRS I/C
GTT manifold
GTT 1% lightened crank wheel
Lohen enlarged TB
JCW Exhaust
JCW injectors

1/2 tank of VPower fuel
Outside temp: 4 deg C

Hopefully these times will improve once I've had my cylinder head, cam & larger injectors fitted at the end of the month!!

What map are you running with the JCW injectors??

[BigShow]

Doesn't make sense, makes me want to go re-test mine now, feel like a fraud lol. Have you been on the dyno recently? I'd expect you to be quicker than me, I've no back seats but I defo weigh more than you so that shouldn't make a difference.

[MINI-Morgan]

I've got a new application for my IPAQ that uses GPS to monitor speed but but sadly the best I could do was 6 dead on but I dont trust it as the GPS sample speed wasnt anywhere near fast enough. Tomorrows task is to find an application with equally good features that supports ODB2 instead and we'll see where we are. Failing that its the stop watch again.....

[BigShow]

I went with the stopwatch but its never going to be 100%, will defo be straight out there again when I get the performancebox back.

[Aberdeen Al]

Quote: Originally Posted by MINI-Morgan (original)

What map are you running with the JCW injectors??

Standard map.

I was using a stop watch so there may be a very small amount of human error but the times seem to be very close together.

I'll maybe empty my pockets on my next runs -

[Paul Webster]

Before you empty your pockets on a cylinder head and larger injectors I would hit a dyno and see whats wrong at the moment.

Even though these test can have slight human error your times are consistant, you're probably 30 bhp down at the moment.

As Roland has pointed out before try a map sensors as they are cheap and easy to fit and if isn't that you have one spare when it does play up.

I would try a map sensor before you hit the dyno.

Well done to Mini Morgan for this idea and helping his fellow Mini2ers to see if there car is lacking horsepower.

[Fisher]

It's much better to do this test with GPS; or at least check with gps the speedo where are the real 30 and 70 miles.

I will try today my time. Of course I will check before with GPS.

[minicabrio]

This is an interesting thread, with some interesting times being posted!!

What do you reckon a Cooper would run 30-70 in 3rd? I can't make it in 2nd as mine hits the rev limiter at 67mph.

[Aberdeen Al]

Quote: Originally Posted by 1320autos (original)

Before you empty your pockets on a cylinder head and larger injectors I would hit a dyno and see whats wrong at the moment.

Even though these test can have slight human error your times are consistant, you're probably 30 bhp down at the moment.

As Roland has pointed out before try a map sensors as they are cheap and easy to fit and if isn't that you have one spare when it does play up.

I would try a map sensor before you hit the dyno.

Well done to Mini Morgan for this idea and helping his fellow Mini2ers to see if there car is lacking horsepower.

My car will be getting dyno'd before the head work etc and then again afterwards.

Excuse my ignorance but what is a map sensor? What does it do? Where can I get one?

[roland2003]

Hi Guys, apart from gearing and weight, tyre pressures and profile will make a massive difference. Just try pushing a car with 45 profile tyres and 20psi, then another with 40 profile and 35psi! -The difference is huge.!
Also youve got to decide whether your 'flooring it at 30', or 'flooring at 20 ,and starting the clock at 30'.-Big differnce!
The most common 'big power loser' is faulty Bypass valve actuator. -Especially on early cars The car in yesterday was losing (butt dyno) 40 -50bhp ,untill we fitted a new GTT tweaked valve. Other favourites are worn (slipping) belt, incorrectly fitted or split intercooler bellows (including mispositioned clamps). Faulty T Map sensor usually gives horrible running aswell. A GTT service/tune once a year is highly recommended. Belts (standard or modified cars) should IMO be changed once a year /12000 miles.
-Hope this helps.
Best Regards Roland GTT

[Paul Webster]

Wow Roland I cant believe some of the tests you've done, even I wouldn't of thought of that one.

So have you any data you can share with us on the 45 profile tyres and 20psi, then another with 40 profile and 35psi??

[roland2003]

Yes 45 profile and 20psi takes 30 seconds to push a car into the unit ,(heartrate increase by 30 beats) against 23.7 seconds for the 40 profile on 30 psi. (heartrate increase only 21 beats per minute)

[Aberdeen Al]

Quote: Originally Posted by roland2003 (original)

Hi Guys, apart from gearing and weight, tyre pressures and profile will make a massive difference. Just try pushing a car with 45 profile tyres and 20psi, then another with 40 profile and 35psi! -The difference is huge.!
Also youve got to decide whether your 'flooring it at 30', or 'flooring at 20 ,and starting the clock at 30'.-Big differnce!
The most common 'big power loser' is faulty Bypass valve actuator. -Especially on early cars The car in yesterday was losing (butt dyno) 40 -50bhp ,untill we fitted a new GTT tweaked valve. Other favourites are worn (slipping) belt, incorrectly fitted or split intercooler bellows (including mispositioned clamps). Faulty T Map sensor usually gives horrible running aswell. A GTT service/tune once a year is highly recommended. Belts (standard or modified cars) should IMO be changed once a year /12000 miles.
-Hope this helps.
Best Regards Roland GTT

I sat at a steady 30 for a couple of hundred yards then started the clock & floored it at the same time.

Perhaps my bypass valve actuator is faulty - this may have happened since my conversion in Feb? I've changed my T Map sensor again recently and I've checked my I/C boots for leaks - they seem to be fine....................hmmm.

Can someone tell me where I can get a map sensor thing mentioned above ^^

Cheers,

Al

[Paul Webster]