27 replies to this topic

[leroy26]

did RR make a difference as ive never done mine since i s1k it, i just co test and make sure plugs are fawn

is yours standard tho thurt you had a s1k on it

Yes stage 1 kit fitted & Rolling Roaded... maybe shave a few seconds off it

[konyo]

did RR make a difference as ive never done mine since i s1k it, i just co test and make sure plugs are fawn

HUGE Difference! Just put your foot down and it's keeps going & going. I would show you if I lived nearer to you. Defiantly worth getting yours set up though :) You won't regret it.

Edited by konyo, 14 August 2012 - 04:17 PM.

[Chance]

I put my foot down and it goes 'nope not going anywhere'
Put it through the floor and it picks up

Slightly rich I think
I'd rolling road it but it's fully standard

Oh and have you tested yet?? :)

Edited by Chance, 14 August 2012 - 04:38 PM.

[Cooperman]

I did some 0 - 60 tests in my 'S' on an airfield with a level runway and tested both ways to remove the wind-speed error.
It averages 0 - 60 in 7.4 seconds using just 1st & 2nd and changing up at 7000 rpm, and 8.5 using 1st, 2nd & 3rd and changing up at 6500 rpm. That's with around 115 bhp at 6400 rpm. Of course, wheelspin is the problem. I run a SC CR gearbox with a 3.9:1 FDR.

[Chance]

I would like about 10secs 0-60
Guess I'd need around 80bhp??

[Cooperman]

Depending on the FDR, that sounds about right. With lower gearing you might do it on 70 bhp, but that would limit your top & cruising speeds.

[Chance]

I only have a 998 atm, completely standard engine wise. I guessworked it and its a 998 A+ with 3.105 FD. I think this is more suited for cruising??

[Cooperman]

The acceleration of a 998 is limited by the lower torque compared to a 1275 and by the high FDR.
The old 998 Cooper had a 3.76:1 FDR and with 55 bhp it could do 0 - 60 in around 16 seconds. The original 1275 'S' with 75 bhp had a 3.76 FDR which was soon changed as standard to 3.44. It gave around 11 seconds 0 - 60 which in 1964 was stunning.
Still, the 998 is a very smooth engine and will cruise all day at 4000 rpm+.

[cooperrodeo]

I hope none of you is relying on the speedo to give an accurate indication of speed. It is quite likely that the speedo reads 10% high.

[Cooperman]

I hope none of you is relying on the speedo to give an accurate indication of speed. It is quite likely that the speedo reads 10% high.

I use my accurately calibrated rev counter.

[Spitz]

Got my 1130 to 145 the other day ( clocked by GPS ) That's with a 3.1FD, didn't think to look at the tach.

( not positive what that is in the old fashion mph...lol )

[Doz1971]

My speedo is currently broken, and I'm not sure whether it's more accurate like that or not

[Cooperman]

Got my 1130 to 145 the other day ( clocked by GPS ) That's with a 3.1FD, didn't think to look at the tach.

( not positive what that is in the old fashion mph...lol )

90.5 mph.