ECU Questions
Author
Discussion

itsallyellow

Original Poster:

3,846 posts

244 months

Wednesday 23rd September 2009
quotequote all
Firstly my understanding of engine managment is very limited.

I need to run a flat shift system on my race car and have been informed that the mbe will not support this. So ive had a look around at other ecu options. What im struggling to see is apart from enabling the flat shift function what will i actually gain from having a good ecu??

Also any views on the various ecu's out there..

Thanks

Mike

stevieturbo

17,985 posts

271 months

Wednesday 23rd September 2009
quotequote all
Flat shifting can be achieved in many ways, with or without an ecu. m sure it is possible in some shape or form on even the crappest ecu's

Be more specific about the application, and why flat shifting is essential.

itsallyellow

Original Poster:

3,846 posts

244 months

Wednesday 23rd September 2009
quotequote all
Its a TVR Cerbera race car with an AJP V8.

I dont see the point in spending money on a sequential box without being able to flat shift.

At the moment im being pushed towards motec.

Mike

stevieturbo

17,985 posts

271 months

Wednesday 23rd September 2009
quotequote all
Again, I'm amazed MBE cant to this, must be pretty crap really.

DTA has this feature, and I'd have thought almost every aftermarket ecu in some shape or form.

There's no doubt Motec is good....but carries a hefty price. But more importantly, who will be tuning and installing it ? You need to use a system that your tuner is able to work with

dnb

3,330 posts

266 months

Wednesday 23rd September 2009
quotequote all
I'm amazed the MBE can't do flat shift either, but by all accounts it's difficult to tune.
Have a look at Emerald. I have briefly played with these on 2 different cars now (AJP Griff and supercharged MX5) and found them to be quite good. It's a shame there's no inbuilt wideband controller, but at least there's a 0-5v input for a separate dedicated controller to use.

Pumaracing

2,089 posts

231 months

Thursday 24th September 2009
quotequote all
stevieturbo said:
Again, I'm amazed MBE cant to this, must be pretty crap really.

DTA has this feature, and I'd have thought almost every aftermarket ecu in some shape or form.

There's no doubt Motec is good....but carries a hefty price. But more importantly, who will be tuning and installing it ? You need to use a system that your tuner is able to work with
I can second that. I recall a turbocharged engine with one of my big valve heads that was detonated to the point of cylinder head gasket destruction (and considerable damage to the head itself) by a rolling road operator who didn't realise the boost retard settings in that ecu were a percentage of the base map ignition timing rather than actual degrees of retard.

He set up a base ignition map, then added what he thought was 10 degrees of high boost retard which was actually only 10% of the 30 degrees of base map advance i.e 3 degrees. It ran fine without boost but detonated like a bar steward under boost so he kept adding what he thought was more degrees of boost retard but which was in fact only a few extra percent of the base map 30 degrees. Before he'd got the boost retard anywhere near what it needed to be he'd run the thing for long enough under full load it expired in a cloud of steam and smoke and had to be trailered back home on the back of an AA truck.

Needless to say he didn't pay for the repairs.

Mind you I also have to say that's a damn silly way to design a programmable ecu so I can understand his confusion but then it was his choice to map with something he hadn't used before and didn't read the instructions for properly.

As for ECUs to recommend I'm not up to date on the current state of the art but I've never seen a DTA system which didn't do exactly what it said on the tin and I've never seen a failure with one. I'm sure others are also good but you stick with what you know. I've seen god knows how many failures with one of the systems previously mentioned in this thread although maybe they've got their act sorted out better now.

Edited by Pumaracing on Thursday 24th September 01:36

spitfire4v8

4,021 posts

205 months

Thursday 24th September 2009
quotequote all
There could be a way to do it on the cerb ecu Mike, who told you it couldn't be done ?
You can flat shift without any rev cutting of course but it's not too kind on gearboxes so some kind of rev limiting for the shift period is desirable. seems a shame to change ecu if you dont have to ..

Vixpy1

42,697 posts

288 months

Thursday 24th September 2009
quotequote all
Flat shift whistle

And a whole lot more wink

DaveL485

2,768 posts

221 months

Thursday 24th September 2009
quotequote all
http://adaptronic.co.uk/

Have a good read through. I think they're bloody fantastic, and genuinely do self-map for fuel.

stevieturbo

17,985 posts

271 months

Thursday 24th September 2009
quotequote all
Vixpy1 said:
Flat shift whistle

And a whole lot more wink
Would that be a Solaris you are referring to ? that comes with a cal switch whistle lol

Vixpy1

42,697 posts

288 months

Friday 25th September 2009
quotequote all
stevieturbo said:
Vixpy1 said:
Flat shift whistle

And a whole lot more wink
Would that be a Solaris you are referring to ? that comes with a cal switch whistle lol
That would be the one Stevie, Stock will be in next week and one will be straight out to you smile

CNHSS1

942 posts

241 months

Friday 25th September 2009
quotequote all
stevieturbo said:
But more importantly, who will be tuning and installing it ? You need to use a system that your tuner is able to work with
this man talks sense smile

stevieturbo

17,985 posts

271 months

Friday 25th September 2009
quotequote all
Suppose the S6 would probably cover it.

http://www.solaris-ecs.co.uk/s6gp.php

Or DTA S80 Pro

http://www.dtafast.co.uk/S_80_PRO.htm

Edited by stevieturbo on Friday 25th September 12:22

Busa_Rush

6,930 posts

275 months

Friday 25th September 2009
quotequote all
itsallyellow said:
Firstly my understanding of engine managment is very limited.

I need to run a flat shift system on my race car and have been informed that the mbe will not support this. So ive had a look around at other ecu options. What im struggling to see is apart from enabling the flat shift function what will i actually gain from having a good ecu??

Also any views on the various ecu's out there..

Thanks

Mike
Depends on the engine you have, the ECU you choose and what additional hardware you want. Have a look at http://www.sbdev.co.uk/Engine_Management_Systems/E...

My MBE 992 supports flat shift, launch control and can also blip the throttle on down shift. Have a chat with Steve at SBD for more into.

dirty boy

14,827 posts

233 months

Friday 25th September 2009
quotequote all
Life Racing F88 engine management system

http://www.aerltd.com/

who run

http://www.liferacing.com/





Edited by dirty boy on Friday 25th September 13:22

Vixpy1

42,697 posts

288 months

Friday 25th September 2009
quotequote all
dirty boy said:
Life Racing F88 engine management system

http://www.aerltd.com/

who run

http://www.liferacing.com/


Edited by dirty boy on Friday 25th September 13:22
Who make ECU's for us hehe


AR TVR

5 posts

199 months

Monday 28th September 2009
quotequote all
We fitted a MoTeC M800 to an Aston V8 Vantage GT3 car running a Drenth sequential box. Ran flatshifting absolutely perfectly. Providing you have the signal coming from the 'box for up and down shift, you can configure both the upshift and the 'blip' on downshift with the MoTeC.

If you are going to the expense of a sequential system, you have no doubt spent funds elsewhere ie engine etc. It's certainly worth investing in a good system to control and look after your investment ! MoTeC has it's reputation for good reason.


itsallyellow

Original Poster:

3,846 posts

244 months

Tuesday 10th November 2009
quotequote all
I have pretty much decided to go with the motec now. So the next question...

Who are the best people out there to do the mapping etc?

Mike

Vixpy1

42,697 posts

288 months

Tuesday 10th November 2009
quotequote all
itsallyellow said:
I have pretty much decided to go with the motec now. So the next question...

Who are the best people out there to do the mapping etc?

Mike
On a Motec, Dave Rowe at EPS

rev-erend

21,605 posts

308 months

Wednesday 11th November 2009
quotequote all
Just a point of clarification.

MBE is the ECU supplied with the Cerbera from new and is not aftermarket and from all I've read on here - they have not supplied 'open' code so that someone can re-tune or make use of additional not used features.