RE: PH Fleet: Tested On The Rolling Road

[Vixpy1]

Gaz. said:

Really? I can think one bodgit and scarper outfit that used theirs to 'prove' their tuning got results. It didn't matter that every car they touched blew up due to serious issues that should have been picked up on the dyno, aside from very poor workmanship.

Does'nt really narrow it down tbh Gaz

[Silent1]

Gaz. said:

Vixpy1 said:

Gaz. said:

Really? I can think one bodgit and scarper outfit that used theirs to 'prove' their tuning got results. It didn't matter that every car they touched blew up due to serious issues that should have been picked up on the dyno, aside from very poor workmanship.

Does'nt really narrow it down tbh Gaz

I know but some stood out more than others

[300bhp/ton]

yonex said:

300bhp/ton said:

yonex said:

300bhp/ton said:

Agree fully. Also a dyno should be used as a tuning tool to allow you to load the engine, monitor and adjust while measuring AF ratios more than just the torque/power curves.

So which dyno isn't used as a 'tuning tool' exactly?

????

300bhp/ton said:

Also a dyno should be used

You seem to be suggesting that some aren't which I have just never seen?

Meaning people only wanting power runs are missing part of the point of using a dyno.

Or tuning companies/part suppliers using it as a mis-marketing tool.

[NoelWatson]

Vixpy1 said:

2) The 460/470 I quoted for the M6 was because it was running normal unleaded, On super the V10 almost always does 500bhp.

http://www.evo.co.uk/news/evonews/62488/this_months_evo.html

Didn't the M5 that EVO tested on the rollers a while back get the same reading irrespective of fuel? I will have to dig out copy later

[grahamw48]

300bhp/ton said:

Gaz. said:

carinaman said:

Big fan?

There's a bit on the BBR (MX-5 turbo and tweaked BMW Mini tuners) website where they mention not to rolling road forced induction engines due to the lack of air compared to when the cars are rolling.

Rolling road forced induction engines isn't a good idea?

Do you think that could be a bit of face saving?

The only way to really know what does what is to take it to the strip but a dyno gives you a good indication if they have nothing to do with the tuner.

Agree fully. Also a dyno should be used as a tuning tool to allow you to load the engine, monitor and adjust while measuring AF ratios more than just the torque/power curves.

Agreed my (two) sessions were exactly for that purpose.
I wanted to know that the engine was running correctly, and not about to self-destruct. The fact that extra power was also found was an added bonus.

First session produced 187 at the wheels, second session (with fuelling/AF ratio corrected using new adjustable fuel reg')...195 at the wheels and better fuel economy. I just like my engines to be 'right'.

[Pingman]

Excellent article

Can personally recommend Surrey RR

[Tim16V]

Pingman said:

Excellent article

Can personally recommend Surrey RR

+1, took my Integrale there a while back and I think I'm going to take the Cadillac down there now if they do automatics.

[Chris_w666]

Garlick said:

Two hundred and forty. That's right 240 from a 400

60 bhp/litre? <MEH>

[grahamw48]

Yep, about the same as most American V8s.