Cerbera Dyno Results

[rjben]

EDIT: Sorry, I can't spell Cerber!!

Hello All,

Not sure if your interested but here's a link to the dyno graphs of my 4.5LW after a run during Ted's rolloing road day. The car has the new TVR-Power map, does the torque curve look any smoother than the standard curve?

Cheers,

Rob

<a href="http://www.aauk.biz/Cerbera/robertbennettdyno.jpg">www.aauk.biz/Cerbera/robertbennettdyno.jpg</a>

<a href="http://www.aauk.biz/Cerbera/robertbennettdyno2.jpg">www.aauk.biz/Cerbera/robertbennettdyno2.jpg</a>

>>> Edited by rjben on Thursday 2nd September 10:27

[ceejay]

Looks to me like your car still has the inherent Cerb problem. Falling torque and power in the mid-range. On my previous 4.5 this happened a little lower down the rev range (approx 3K) than yours. Ideally you want to fill this part of the curve in. If you can you'll really notice the difference.

Does yours feel just a little dull on the throttle at about 3700rpm?


Ceejay

[Tam Lin]

Nice to see the classic AJP "Camel back" torque curve..mine's the same (4.2, 97, no mods). Did you do anything to it before or since?

I really want to find out if the APM-later-factory chip improves matters.

[rjben]

ceejay said:

Looks to me like your car still has the inherent Cerb problem. Falling torque and power in the mid-range. On my previous 4.5 this happened a little lower down the rev range (approx 3K) than yours. Ideally you want to fill this part of the curve in. If you can you'll really notice the difference. Does yours feel just a little dull on the throttle at about 3700rpm? Ceejay

I have to admit that I'm not a good enough driver to identify any momentary power loss that would translate to a trough a in the torque curve - it just feels fast!

[rjben]

Tam Lin said:

Nice to see the classic AJP "Camel back" torque curve..mine's the same (4.2, 97, no mods). Did you do anything to it before or since? I really want to find out if the APM-later-factory chip improves matters.

The new chip I had fitted before the rolling road is the 'APM-later-factory' chip from TVR Power. It does not seem to make any difference when he car is 'on the boil' although it has absolutely transformed its behaviour sub 3k. It can now be driven at 1500 rpm relatively easily.

[flashheart]

Those figures seem a little less than the 420bhp/380lbft figures mentioned in my logbook!

[joospeed]

Looks to be just an average cerbera output to me, curves look generic cerbie output too .. no change there then

shame cos i have two chips on order .. boo.

[J_S_G]

flashheart said:

Those figures seem a little less than the 420bhp/380lbft figures mentioned in my logbook!

90lbft and 70BHP down... would be interesting to see what TVR had to say about figures like these.

[rjben]

flashheart said:

Those figures seem a little less than the 420bhp/380lbft figures mentioned in my logbook!

I didn't think anybody believed the book figures anymore? I'm more than happy with the fact that its a 'normal' Cerbera.

In all honesty I don't think that I'm 'Jonnie Big Potatoes' enough to deal with 420BHP anyway!

[rjben]

joospeed said:

Looks to be just an average cerbera output to me, curves look generic cerbie output too .. no change there then shame cos i have two chips on order .. boo.

Joospeed, whats with the 'Stop Press: Engine Mapping' or similar on your banner add? Are you refering to the two chips you have on order?

[joospeed]

No, it's the ecu from emerald .. about 1200 pounds fitted and mapped

[arcbeer]

joospeed said:

No, it's the ecu from emerald .. about 1200 pounds fitted and mapped

Do I take it that the Austec chip is dead in the water?

[jamster]

flashheart said:

Those figures seem a little less than the 420bhp/380lbft figures mentioned in my logbook!

better of with an SP6 boyz. 360bhp guaranteed!!! Ehh when it's workin that is