Griff Growl 2014 Rolling Road Videos & Charts

[MPoxon]

Afternoon gents,

I have created a wiki for the rolling road results here so feel free to add your results:
http://www.pistonheads.com/GASSING/topic.asp?h=0&a...

Here are a few videos I took of the Rolling Road

FFG Griff 430 BV:
http://youtu.be/illucgLCAMo

Moycie Cerb 4.5 Red Rose
http://youtu.be/1K7DnxBuNic

pjac Griff 540
http://youtu.be/kagztOdWTD0 - Flame map only
http://youtu.be/8LGthZHOcFo - Petrol, LPG & Flame runs

MPoxon Griff 500
http://youtu.be/616GxwDgZcY

Feel free to post up your Dyno charts, here are mine.... fuelling looking good and a nice flat torque curve

[phazed]

You need a more aggressive cam to push you over the 300 mark it seems.

I assume you are on the original?

[Quinny]

Here's mine..

The graph suggests my fueling is crap and way to rich...but I'd suggest its a spurious reading... I'm averaging 28 mpg, car doesn't smell of fuel, and at a recent MOT it nearly passed a cat test.... With no cats fitted.


This is supposed to be the torque figure, but again, my old griff had 326ft/lbs, so I know what that feels like... There's no way this car has the same torque as my old one....

[SILICONEKIDOBHP]

Quinny said:

Here's mine..

The graph suggests my fueling is crap and way to rich...but I'd suggest its a spurious reading... I'm averaging 28 mpg, car doesn't smell of fuel, and at a recent MOT it nearly passed a cat test.... With no cats fitted.


This is supposed to be the torque figure, but again, my old griff had 326ft/lbs, so I know what that feels like... There's no way this car has the same torque as my old one....

Have you checked the oil pressure ?

[MPoxon]

phazed said:

You need a more aggressive cam to push you over the 300 mark it seems.

I assume you are on the original?

According to that dyno yes it would seem so but according to the TVR Power dyno I had 309 two weeks ago. The figures did seem a little lower across the board this year compared to last year. Either way the car drives very nicely, has a nice flat torque band and has more power than I have talent so I will not be in a rush to spend more on further power.

Still on the original cam, car has done 47k so it might need replacing at some point in the not too distant future judging by others experiences of the TVR500 chocolate cam.

[phazed]

My Rover engine showed just under 400 torque, dam overrated yank engines

[Quinny]

SILICONEKIDOBHP said:

Have you checked the oil pressure ?

Yes..at 2000rpm... Its exactly 3.44737864e+29 yoctopascals

[QBee]

Quinny, your car must have had wheel spin on the rollers

[Quinny]

QBee said:

Quinny, your car must have had wheel spin on the rollers

Pretty sure something wasn't tickity boo.. But it certainly isn't the car, it's running beautifully

[phazed]

They all seemed down apart from the precat 4.3 that made 268 or 278?

[QBee]

I was watching for quite a while. They were having quite a bit of trouble with tying the cars down adequately. Therefore getting insufficient downward pressure on the rollers.
Might explain some of the results. Might not.
I am not an expert, but did do A level Physice just before the Boer War.

I have been in Quinny's car. Mine has 330 torques. If his has less than 400 then my name's Mary and I was made Pope in 1853.

[FlipFlopGriff]

phazed said:

They all seemed down apart from the precat 4.3 that made 268 or 278?

Mine (430BV) was 268 which is a good 10 down from last year.
Its a level playing field so if one is down so are the rest.
No room for excuses.
FFG

[SILICONEKIDOBHP]

Are you sure it`s a real rolling road? ,it`s an Etch A Sketch ,some bloke twiddling the knobs at the back :

[phazed]

Lovingly carried home in the boot of the car with a load of other crap

[grngriff]

My 4.3 seemed the exception, which surprised me
287.4 bhp and 310 torques
All in a good day for all

Pete

[FlipFlopGriff]

grngriff said:

My 4.3 seemed the exception, which surprised me
287.4 bhp and 310 torques
All in a good day for all

Pete

Great figures. My bhp (ocean haze) was nearly 280 last year but 340 torque which I dont believe (315 the year before). My fuelling isnt right so some work to do. Target 300 bhp and 350 torque with minimal work.
Which one was yours - lots of precats this year which is briliant,
FFG

[fastandcurious]

phazed said:

They all seemed down apart from the precat 4.3 that made 268 or 278?

Mine wasn't down as it has gained nearly 40 bhp's since the last time I went on the rolling road at the Growl back in 2008!

[eff eff]

Mine showed 446 brake and 368 lbs/ft, that was with a fair bit of wheel slip, in fact the boot lid was covered in small bits of rubber after the run. When tuning the engine it pulled 478 brake and just over 500lbs/ft that was with 45 psi rear tyre pressure and 50 gallons (500lbs) of water in the boot, so unless the wheels grip the rollers consistently the numbers will vary.

[QBee]

I have seen the Phazedmobile make 357 bhp on a proper rolling road, one we all trust.
My own car read 300 bhp on that same RR, and i was not a little disappointed. I expected around 330.
I am not 100% convinced about portable rolling roads.
They stick a lightweight rear wheel drive car's arse up in the air and expect to get accurate readings.
The first RR I took my car on was flat, and 3 of us had to sit on the boot to get proper readings.

[phazed]

QBee said:

I have seen the Phazedmobile make 357 bhp on a proper rolling road, one we all trust.
My own car read 300 bhp on that same RR, and i was not a little disappointed. I expected around 330.
I am not 100% convinced about portable rolling roads.
They stick a lightweight rear wheel drive car's arse up in the air and expect to get accurate readings.
The first RR I took my car on was flat, and 3 of us had to sit on the boot to get proper readings.

Don't forget Jools tweaked the map since then and got about another 10 bhp!