Power run today on 4.0

[zzr1200]

I had a power run done on a new rolling road in Witham, Essex today on my 1997 4.0. It gave 211bhp@5564rpm at the flywheel and 216 lb/ft torque@4300rpm with a really nice, flat curve with 165lb/ft@2000rpm and 200lb/ft@5564rpm. What have other people had on their cars?

Mine is standard with the timing adjusted for 95 unleaded so I'm happy with the results but may go for a Unichip if I decide to keep it. It was hitting the limiter at 5564rpm though when power was still climbing, has anybody else got a limiter so low?

Paul

[zzr1200]

HarryW said:

zzr do you have a print out of the power run, if so post it here, you can normally tell a bit more from its shape. IMHO the torque may be a little low, powers seems fine though. Saying that, there are always 'funny' figures, try not to read too much into them, particulary if you are happy with the way it drives. Compared to a 1200 Kwaka it probably feels a tad slow anyway . Harry

Hi Harry,

I have a printout of the power run, I'll scan it later and post it on this thread. The BHP read out was starting to flatten when the limiter came in so I assume it will probably give about another 10 flywheel horsepower before tailing off. I thought the torque seemed a little low as well because the curve is not that curvy (if ya know what I mean!). I am currently deciding on whether to keep it, I had decided to put it up for sale but the other half is persuading me otherwise! If I keep it I'll probably chip it to improve drivability, if I gain extra power then so be it.

Your right about the bike though, makes any TVR seem slow, I want to run the bike up the strip as I've seen qtr mile times of 10.5 secs @133mph! I should just be getting to the end of 3rd gear about then!

[zzr1200]

Mark.S said:

Wheres this place in Witham Paul?

Hi Mark,

How's the 500 going?

The rolling road is on the industrial estate by Dovercourt Ford on the North side of Witham. Just turn left (if travelling from the town centre) before the ford dealer and go to the end of the road and the car park is right in front of you, the 2 guys who run it have worked with various professional race teams and seem to know there stuff. I'll give you the phone number when I get home.

Paul