cerbera, 160bhp power gain
Discussion
The final result has yet to come in, but preliminary indications suggest that the cerbie being mapped at the moment is showing an extra 160ish bhp!! .. obviously there's a bit more to this story than meets the eye and involves cars being serviced that are just not up to the mark, will post more details later in the day .. just wanted to whet your appetite 
joospeed said:
The final result has yet to come in, but preliminary indications suggest that the cerbie being mapped at the moment is showing an extra 160ish bhp!! .. obviously there's a bit more to this story than meets the eye and involves cars being serviced that are just not up to the mark, will post more details later in the day .. just wanted to whet your appetite
Does that mean it was 240bhp-ish to start with?
joospeed said:
The final result has yet to come in, but preliminary indications suggest that the cerbie being mapped at the moment is showing an extra 160ish bhp!! .. obviously there's a bit more to this story than meets the eye and involves cars being serviced that are just not up to the mark, will post more details later in the day .. just wanted to whet your appetite
Joolz, i'm whetted...!
Any idea of costs, i'm about ready for a service so maybe we should have little chat
Ok, the results are in .. car eventually made 391.2bhp, and 353lbs torque.
The car came in and made 190bhp!
it was down to several factors, most of which were missed by a long standing tvr dealer in the northern half of the country :
one blocked catalyst
one blocked rear exhaust silencer
cams too far retarded
HT leads wrong type so terminals inside weren't actually touching the spark plugs!
one coil pack split / corroded transformer.
Silicone inlet hoses vert crimped together.
Once all that lot had been sorted, and teh car remapped it made the figures above .. result I'd say!!
.. but just goes to show that if you trust your pride and joy to certain delaers they may very well be producing a lot less power than they're supposed to ..
I think the owner may well notice the difference
The car came in and made 190bhp!
it was down to several factors, most of which were missed by a long standing tvr dealer in the northern half of the country : one blocked catalyst
one blocked rear exhaust silencer
cams too far retarded
HT leads wrong type so terminals inside weren't actually touching the spark plugs!
one coil pack split / corroded transformer.
Silicone inlet hoses vert crimped together.
Once all that lot had been sorted, and teh car remapped it made the figures above .. result I'd say!!
.. but just goes to show that if you trust your pride and joy to certain delaers they may very well be producing a lot less power than they're supposed to ..
I think the owner may well notice the difference
What RR was the final figures taken on then Joolz..................
.
Harry
Just playing btw, very healthy final figure though, seems that 390+ is looking more like the standard for a fettled cerb now days, must get me one of those 
. Are you doing a similar/ same mapping thing to Paul @ Austec then, or was this with the emerald ECU 
. Harry
Just playing btw
, very healthy final figure though, seems that 390+ is looking more like the standard for a fettled cerb now days, must get me one of those . Are you doing a similar/ same mapping thing to Paul @ Austec then, or was this with the emerald ECU Don't know what the wheels figure was Mike .. Darren at Noble has only given me a graph with the flywheel figures on .. sorry.
Seems like 390bhp is the airflow potential of the 4.5 cerbie .. seems to me that the 420 quoted by the factory was either on a very optomistic dyno or the power was never there in the first place *in this spec* ...
great thing abuot these engines is that there's at least 320lbs torque from 3000 to 7000 rpm .. that makes them incredibly easy cars to drive fast, a 4k rev range where the torque is enormous
Seems like 390bhp is the airflow potential of the 4.5 cerbie .. seems to me that the 420 quoted by the factory was either on a very optomistic dyno or the power was never there in the first place *in this spec* ...
great thing abuot these engines is that there's at least 320lbs torque from 3000 to 7000 rpm .. that makes them incredibly easy cars to drive fast, a 4k rev range where the torque is enormous
HarryW said:
What RR was the final figures taken on then Joolz..................
Harry
Just playing btw
haha .. Hi Harry.
I use the Emerald system .. Paul does great stuff with the MBE and it scores over the Emerald on some areas, and there are several areas I consider the Emerald to be better than going MBE remap route, summarised below...
Notable points are :
MBE ..
diagnostics can be run by any TVR dealer, handy if you break down away from home.
looks standard for warranty time
is a good way to get more power if no on-going mods are planned.
You only get a remapped chip for your money.
Emerald ..
you can run your own diagnostics using Emerald's software, but your average TVR dealer wouldn't have a clue what they were looking at! But as it's plug and play you could swap the MBE back in for diagnosis anway. Not ideal but would work.
You get an ECU, mapping lead, software for your money.
Becomes much more sensible if ongoing changes are planned as you don't need Austec to remap it after every upgrade, your local rolling road dyno can do it for minimal cost so saving money on a progression of upgrades.
You'd have to swap back to the MBE ecu if warranty inspector was coming to see the car (easy peasy 2 minute job though)
Because of the way the emerald uses the throttle pot inputs it doesn't appear to be anywhere near as sensitive to throttle signal spiking that afflicts the MBE.
Both systems will get you the full capability of your engine so no worries there
Austec Mike .. feel free to comment if you feel this is in any way biased
Wow, that's an amazing result. I thought you might get 370 at a push but 391, fantastic.....owner is gonna be grinning for weeks.
Can't wait till you do mine, do you think you'll have the ECU in before the service? She'll need some xtra TLC though so be nice to her cos I want 400+!
Ceejay
Can't wait till you do mine, do you think you'll have the ECU in before the service? She'll need some xtra TLC though so be nice to her cos I want 400+!
Ceejay
ceejay said:
Wow, that's an amazing result. I thought you might get 370 at a push but 391, fantastic.....owner is gonna be grinning for weeks.
Can't wait till you do mine, do you think you'll have the ECU in before the service? She'll need some xtra TLC though so be nice to her cos I want 400+!
Ceejay
You'll get what you're given and like it ok!!
Yes the engine was a dog! I went to a main TVR agent on three occasions but their computer did not really help enough. I had heard good things about the Wizard of Chesterfield who could work wonders so I travelled over the peak district (in hill fog!) to him! I am so chuffed my grin will probably travel right round my head. What is amazing is I came second overall (on handicap)in the September sprint at Liverpool MC with only 190bhp. No wonder I had to corner fast!!I have completely rebuilt jaguar engines myself but could never have coped with a cerbera motor (no info). Jools really is a miracle worker. I can recommend Jools to anyone - no hesitation. I knew the motor had good compression and burns hardly any oil so I hoped it would basically be OK. At less than 16k miles it should be!
joospeed said:
Wow, that's an amazing result. I thought you might get 370 at a push but 391, fantastic.....owner is gonna be grinning for weeks.
Can't wait till you do mine, do you think you'll have the ECU in before the service? She'll need some xtra TLC though so be nice to her cos I want 400+!
Ceejay
You'll get what you're given and like it ok!!
Just remembered why my Cerb goes nearly 100 miles up the M1 to Joospeed.............cos you understand my needs!
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