Growl rolling road results - 500's beware

[FlipFlopGriff]

As most of you know I've been having some problems which seem to have been resolved. My last rolling road run (on the same dyno at the Growl) was 2011 so I thought I'd have another bash to see where the car sits in comparison.
I was pretty pleased with the outcome (2011 is the pink line and 2013 is red):




BHP is pretty similar to before but the torque has gone from 311 (ish) to over 340. The torque curve is now very different, but why??
I've changed to hotter plugs (BPR6ES) and replaced the engine earth strap. I've also swapped a few electrical items over and checked all the base settings but didn't expect this.
Not bad for a seasoned 430, even though it is a BV. Spoke to some 500 owners who'd spend a few grand on upgrades who were none too happy.
FFG

[V8Bart]

Nice numbers Paul, great result.

Makes my 213bhp from a 500 look even worse.

[Barreti]

I'm sure running without a drive belt attached to the water pump and alternator will have helped Paul

[MPoxon]

Great result Paul, very glad to hear the car is running right again.

For the record I am a 500 owner and no I am not happy! BHP on a 4.3BV will always be similar to a 500 but that torque figure is unreal! Great result.

[TVR Beaver]

Didn't you publish a table before with all the results on?

Edited by TVR Beaver on Tuesday 9th July 09:18

[EGB]

Engine earth strap. How did you change this Paul. Thickness/length of cable etc
Good result for your BV. Thanks Eddie.

[FlipFlopGriff]

EGB said:

Engine earth strap. How did you change this Paul. Thickness/length of cable etc
Good result for your BV. Thanks Eddie.

Found by the garage and changed by them too. Did overszie the new one. Old one was about a foot long and identical thickness to the battery earth strap. Was about 20% left holding it together.
FFG

[LordGrover]

Keep plugging away FlipFlop, you'll be up near my old precat soon.

[FlipFlopGriff]

LordGrover said:

Keep plugging away FlipFlop, you'll be up near my old precat soon.

BHP isnt that far off, the torque has increased rapidly. What was your torque figure?
I'm not trying to increase either but just seem to get improvemnnts, despite doing nothing other than swapping a few electrical items over. My BHP before 2011 and the ECU change was 256 and torque around 290 so the BHP has increased a fair bit (278.6 in 2011) but the torque increase is a mystery.
FFG

[LordGrover]

That was cheating with no air filter.
Also rather younger than your old bus too, it only had about 110,000 miles on it then.

I think the most mine made was about 320 torques.

[FlipFlopGriff]

So over 340 doesn't seem that unbelievable then. Must take the air filter off next time then.
FFG

[LordGrover]

Interesting to note the difference in AT yet similar IT.

[FlipFlopGriff]

LordGrover said:

Interesting to note the difference in AT yet similar IT.

Think the 27 is the temperature - it was damn hot.
FFG

[LordGrover]

Sorry, didn't make it clear; that's what I meant.
Ambient temps are 19 & 27° yet intake temps 33 & 32°C.

[clive f]

I can see it now, all griff 500 owners rushing to replace their earth straps


nice one Paul, let me know when you sort a date for next year

[TVR Beaver]

Paul... do you have the list of result from the rollers?

[FlipFlopGriff]

TVR Beaver said:

Paul... do you have the list of result from the rollers?

Most bhp's but nothing else. If you want to start one John that would be great.
FFG

[FlipFlopGriff]

clive f said:

I can see it now, all griff 500 owners rushing to replace their earth straps


nice one Paul, let me know when you sort a date for next year

Will do. Possibly the greatest performance enhancement EVER.
I said exactly the same after I saw the results.
FFG

[TVR Beaver]

FlipFlopGriff said:

Most bhp's but nothing else. If you want to start one John that would be great.
FFG

Its up if you want to add in what you have