4.3 TVR Power speed 6

[glow worm]

spitfire4v8 said:

Christ. Who was doing the mapping? The time spent at high rpm is tiny. If you added it all up it would be a couple of minutes in total!

I said 2 hours AT UPTO 6500 rpm ...Not 2 hours at 6500 rpm.
I also understood there to be more reference points required in the rpm/load matrix at the higher end on the MBE ECU.

Edited by glow worm on Friday 24th January 10:35

[spitfire4v8]

yes you said 2 hours revving UP TO 6500rpm. It's probably more like 15 mins revving up to 6500rpm of which the time spent at 6500rpm and over is tiny. I take your point about your engine man not wanting the engine to rev high, but even a statement of 2 hours revving up to 6500rpm is grossly exagerrated ..

[billy no brakes]

glow worm said:

What's your exhaust configuration ?
Are you having a power run before the upgrade, so you know your starting point ?
I daren't have a power run before because my chains were a little rattley and I wasn't prepared to risk jumping a cog. My upgrade happened because I went for a bespoke mapping, and Jason advised against 2 hours revving upto 6500 rpm.

Edited by glow worm on Friday 24th January 09:36

Exhaust is from the engine to the back of the car

Power run only if Dom wants to, all I want is an engine with more torque, I,am used to my Cerb and any gains is good for me and the 3.6 just does not do it for me, I have done a trackday at Donnington and the car was great but it deserves a faster engine, I,am 56 this year and the engine comes with a 5 year warranty and that is good enough for me, I,am not getting involved with any arguments over the engine builder I have chosen Dom and that's that

[gacksen]

-->all I want is an engine with more torque<--

i would have wanted to have quite a lot of more torque and BHP for almost 10000 pounds spent
by the previous owner of my car......

in approx 2 weeks time my idependent dyno results of a standard 4.3 decat with tvr power eprom chip and
standard backbox will follow. no larger bore exhaust. anything standard....

looking forward to the results....

Edited by gacksen on Saturday 22 February 21:47

[chris watton]

I note that TVR Power have a couple of new products they have just brought out, a new MBE engine management system:

http://www.tvrpower.co.uk/store/slug/electronic-ig...

And a new MBE ECU system:

http://www.tvrpower.co.uk/store/slug/mbe-ajp/

Would these be a worthwhile upgrade together with the 4.3?

[Ant.]

chris watton said:

I note that TVR Power have a couple of new products they have just brought out, a new MBE engine management system:

http://www.tvrpower.co.uk/store/slug/electronic-ig...

And a new MBE ECU system:

http://www.tvrpower.co.uk/store/slug/mbe-ajp/

Would these be a worthwhile upgrade together with the 4.3?

Well the first one is for a RV8 , so no...

[chris watton]

Ant. said:

chris watton said:

I note that TVR Power have a couple of new products they have just brought out, a new MBE engine management system:

http://www.tvrpower.co.uk/store/slug/electronic-ig...

And a new MBE ECU system:

http://www.tvrpower.co.uk/store/slug/mbe-ajp/

Would these be a worthwhile upgrade together with the 4.3?

Well the first one is for a RV8 , so no...

You sure?

It does state: "New MBE engine management system for both Rover V8 and Speed 6 powered cars"

[Ant.]

chris watton said:

You sure?

It does state: "New MBE engine management system for both Rover V8 and Speed 6 powered cars"

Well that coil pack and crank wheel are for an RV8.......

[m4tti]

gacksen said:

-->all I want is an engine with more torque<--

i would have wanted to have quite a lot of more torque and BHP for almost 10000 pounds spent
by the previous owner of my car......

in approx 2 weeks time my idependent dyno results of a standard 4.3 decat with tvr power eprom chip and
standard backbox will follow. no larger bore exhaust. anything standard....

looking forward to the results....

Edited by gacksen on Saturday 22 February 21:47

Thanks gacksen I'm looking forward to seeing what you get!

[gacksen]

chris watton said:

I note that TVR Power have a couple of new products they have just brought out, a new MBE engine management system:

http://www.tvrpower.co.uk/store/slug/electronic-ig...

And a new MBE ECU system:

http://www.tvrpower.co.uk/store/slug/mbe-ajp/

Would these be a worthwhile upgrade together with the 4.3?

would raise far more questions like where are the knock sensors placed ?
cold start control ? non existing for 2.2 K ?
what is the final price with knock control ?
Programmable interface for MBE TFT Screen ? what is meant by TFT screen ?

end of the day you have a 3k bill for minor improvements....

[EvoOlli]

gacksen said:

would raise far more questions like where are the knock sensors placed ?
cold start control ? non existing for 2.2 K ?
what is the final price with knock control ?
Programmable interface for MBE TFT Screen ? what is meant by TFT screen ?

end of the day you have a 3k bill for minor improvements....

Mhhh....minor improvements ? For me they are major. A few things that come to my mind:

- Better fuelling through Wide Band Lambdas and Camshaft Sensor
- Safer engine run because of the above mentioned and the knock sensors
- Better mapping possible because of the knock sensors, even when you are travelling in GB with 97 Octane and Germany with 102 Octane
- OBD2 and CAN-Bus Interface, for example for data acquisition in combination with a Data-Logger
- Display of different values on a separate TFT-Screen or a Custom-Build-Display
- More sensor inputs avaiable, for example a fuel pressure sensor (very important for me)
- Better programmability of the ECU, more options to control the behaviour
- Much better possibilities to diagnose a fault when it arises
- Optional Traction Control

Why do you need a cold start control ? My engine runs perfect at idle even under zero degrees ? So IMHO it's not necessary. Maybe your throttle bodies are worn ?

[gacksen]

EvoOlli said:

Mhhh....minor improvements ? For me they are major. A few things that come to my mind:

- Better fuelling through Wide Band Lambdas and Camshaft Sensor
- Safer engine run because of the above mentioned and the knock sensors
- Better mapping possible because of the knock sensors, even when you are travelling in GB with 97 Octane and Germany with 102 Octane
- OBD2 and CAN-Bus Interface, for example for data acquisition in combination with a Data-Logger
- Display of different values on a separate TFT-Screen or a Custom-Build-Display
- More sensor inputs avaiable, for example a fuel pressure sensor (very important for me)
- Better programmability of the ECU, more options to control the behaviour
- Much better possibilities to diagnose a fault when it arises
- Optional Traction Control

Why do you need a cold start control ? My engine runs perfect at idle even under zero degrees ? So IMHO it's not necessary. Maybe your throttle bodies are worn ?

as a new ecu will be built in the next weeks for me it is the following :

- Better fuelling through Wide Band Lambdas and Camshaft Sensor
as for the fuel consumption i don´t care as it is a maybe weekend fun car. as for correct mapping yes..

- Safer engine run because of the above mentioned and the knock sensors
where are the engine knock sensors placed on the block ?

- Better mapping possible because of the knock sensors, even when you are travelling in GB with 97 Octane and Germany with 102 Octane
makes sense if installed and mapped correctly. havent realy heard about positive results yet.

- OBD2 and CAN-Bus Interface, for example for data acquisition in combination with a Data-Logger
any proper ecu in this price range can do that

- Display of different values on a separate TFT-Screen or a Custom-Build-Display
personaly don´t need that. if i am interessted i use my subnotebook

- More sensor inputs avaiable, for example a fuel pressure sensor (very important for me)
good investment

- Better programmability of the ECU, more options to control the behaviour
of course yes but do you think will get a 100 percent mapped car back ? i don´t think so
means you have to adjust the mapping in part throttle by yourself and not everybody is willing
to invest the time or can do it.

- Much better possibilities to diagnose a fault when it arises
depends on the fault. if something internal is the problem knock sensors will tell
you but thats it.

- Optional Traction Control
don´t need that. would have bought a porker if i wanted to.

-Why do you need a cold start control ? My engine runs perfect at idle even under zero degrees ? So IMHO it's not necessary. Maybe your throttle bodies are worn ?
both T cars had a similar behavior once cold. with cold start control i don´t mean the car won´t start. of course it
does every single time but having the Bosch PWM in my Chim i won´t miss that on a new built T car.

Swapping the ECU on my side is just for torque BHP and fun reasons. If you have a standard car and 3 grand
on your hand there are way better options to spent that money first instead of getting a new ecu like 3.73
diff airbox exhaust etc.....

[EvoOlli]

OK, so you are not comparing the new TVR-Power/MBE-ECU against the standard ECU. Instead you are comparing it against a different ECU you have to name...

Regarding the fuelling: It's not the fuel consumption I'm after, don't care about that, but I want to have a fuelling which isn't lean under certain circumstances.

Don't know where the knock sensors are placed, maybe you should ask Dom ?

Why shouldn't I get a 100% mapped car back ? Dom should know how to do it.

Regarding the reliability of the knock sensors, you say, you didn't heard positive things about it...was it regarding this MBE from Dom or was it with someone else's ECU ?

Cold start control: I understand that we are not talking about the starting itself, every ECU should do that :-) But I don't have any problems with idle when the engine is cold, so an extra part would make no sense to me.

Regarding investment: Don't see an advantage in a 3.73 Diff with my 4.3, especially driving it here in Germany. I only have to shift earlier...

Airbox...exhaust....all done, but not with performance in mind ;-)

[gacksen]

EvoOlli said:

OK, so you are not comparing the new TVR-Power/MBE-ECU against the standard ECU. Instead you are comparing it against a different ECU you have to name...

Regarding the fuelling: It's not the fuel consumption I'm after, don't care about that, but I want to have a fuelling which isn't lean under certain circumstances.

Don't know where the knock sensors are placed, maybe you should ask Dom ?

Why shouldn't I get a 100% mapped car back ? Dom should know how to do it.

Regarding the reliability of the knock sensors, you say, you didn't heard positive things about it...was it regarding this MBE from Dom or was it with someone else's ECU ?

Cold start control: I understand that we are not talking about the starting itself, every ECU should do that :-) But I don't have any problems with idle when the engine is cold, so an extra part would make no sense to me.

Regarding investment: Don't see an advantage in a 3.73 Diff with my 4.3, especially driving it here in Germany. I only have to shift earlier...

Airbox...exhaust....all done, but not with performance in mind ;-)

as you have the 4.3 too and if the fueling is lean under certain conditions wouldn´t this be a problem
that should be adressed to the engine builder and mapper of your car ? as it seems to me it won´t make any
sense in delivering a car to a customer that is running lean ? would be the last person to accept that if
can´t be changed by myself and it seems you can´t change it either otherwise you would have chnaged it ?
i know where the 4.3 engine builder has placed it´s knock sensors so there is no need to ask.
anyway i am tired of asking the company that has done the upgrade about any specific details due the so
called "WALL OF SILENCE" if i want to buy something reply comes in within hours.........

cold start control depends on the point of view. if you don´t need it no problem. for me it is a must have
in this price range of ecu upgrade. a shorter diff like the 3.73 is not just the shorter diff but thats a
different story of the internals. in regards of driving it depends on the profile you are running with your car.
mine is driven 10 miles out of 100 on the autobahn so reduced top speed is no problem. i am harly using the
5th gear at all in weekend use.

as for the mapping did you ask the corresponding company about it ? is it a power mapping on the dyno or what kind of mapping is it ? of course your car will be mapped and driveable but i doubt it will be perfect.

it´s not my intention to bash things here but having a folder of receipts worth above 15000 grand for work done
including exhaust windshield etc. and speaking quality wise in certain regards if i would deliver that kind
of work to my customers i won´t see them next time.....


-->hopefully sounds better now<--

Edited by gacksen on Monday 24th February 22:44

[Don1]

In fairness, and to keep a thread open, please be careful of the 'name and shame' rules....

[Suffolk Redneck]

I am having the new MBE ECU fitted to my Sag. I am also having traction control and launch control.
I can't wait!

[EvoOlli]

Hi Gacksen,

I don't have any problems with my car at the moment....if I speak, for example, of a lean condition, I think of situations which can arise while using the car....and if the ECU doesn't have the possibilities to detect things which are wrong, it can't handle these. And with the simple Lambdas lean conditions are not detectable.

Regarding the Diff: Don't understand what you want to say, the diffs are so reliable I don't mind about the internals (except the sort of locker)...it's not a Porsche where you try to get gears with odd teeth-count to spread the load
...but talking about the gearing of a car could be an endless discussion, it's down to personal purposes....as you say.

You say the mapping which is included in the price isn't correct ? Why do you accuse Dom that his mappings are only for running the engine ? BTW, there's a mapping on his Dyno included.

Why don't you name the ECU you want to use ?

[gacksen]

EvoOlli said:

Hi Gacksen,

I don't have any problems with my car at the moment....if I speak, for example, of a lean condition, I think of situations which can arise while using the car....and if the ECU doesn't have the possibilities to detect things which are wrong, it can't handle these. And with the simple Lambdas lean conditions are not detectable.

Regarding the Diff: Don't understand what you want to say, the diffs are so reliable I don't mind about the internals (except the sort of locker)...it's not a Porsche where you try to get gears with odd teeth-count to spread the load
...but talking about the gearing of a car could be an endless discussion, it's down to personal purposes....as you say.

You say the mapping which is included in the price isn't correct ? Why do you accuse Dom that his mappings are only for running the engine ? BTW, there's a mapping on his Dyno included.

Why don't you name the ECU you want to use ?

me not having any issues with the car at all. my swap is for performance and for fun reasons only.

what i said had been i doubt the mapping will be perfect. there are no accusations made.
further i doubt the power figures stated of the 4.3 engine. of course i could throw some things
on the table like manufacturing an exhaust and getting a front screen in revising a dash display
etc. etc. but that is a different story and has nothing to do with it right now.

car will be on the dyno in some time so looking forward to what the independent RR figures will say...
more things to come....

if good work has been done of any kind i am the first one to recommend
a company. if the work is done soso you should not expect any recommendations.

[gacksen]

as mentioned earlier here is the dyno run of the 4.3 engine.

it is to mention car is decated with 4.3 decat chip so you can expect another
20 horses at the wheels down from the figures...... except of that anything standard...



so a realistic value for the 4.3 in standard config is around 330-340 horses at the wheels....

Edited by gacksen on Saturday 22 March 12:54

[Don1]

410bhp and 335 lb/ft - that is slap bang in the 4.3 range according to the Wiki. I'll add the details in.