coil over spark

[2.5bluenob]

Has anyone with a 3L engine changed from coil over spark to a single coil pack, as i'm thinking bout doing it.
Cheers steve

[951]

Why would you want to do that??

[Gadgeroonie]

easily done - the 2.5 runs this way

you will end up with wasted spark - but no problem

[mgbond]

Gadgeroonie said:

easily done - the 2.5 runs this way

you will end up with wasted spark - but no problem

Not saying I understand this but are u sure?

If the MBE is firing sequentially in its current set up then why can't it from the coil pack as it still has 6 coils.

My 2.5 runs sequentially?

[2.5bluenob]

951 said:

Why would you want to do that??

Because its supposed to be a much more reliable set up! Apparently coil over spark was only introduced because of emission laws. And if i convert it i will free up loads of outputs in my ECU.

[Gadgeroonie]

mgbond said:

Gadgeroonie said:

easily done - the 2.5 runs this way

you will end up with wasted spark - but no problem

Not saying I understand this but are u sure?

If the MBE is firing sequentially in its current set up then why can't it from the coil pack as it still has 6 coils.

My 2.5 runs sequentially?

the 2.5 has 6 ht leads - but if you look carefully there are 2 leads per coil

so it is 3 coils not 6

it runs wasted spark - not really a problem


however why would you want to do it if you have 6 working coils ? is there a coil gone down ?

[GTO600]

2.5bluenob said:

951 said:

Why would you want to do that??

Because its supposed to be a much more reliable set up! Apparently coil over spark was only introduced because of emission laws. And if i convert it i will free up loads of outputs in my ECU.

Not knowing why you want all the extra outputs but wouldn't be better to look at a different ECU ?

[Adrian W]

2.5bluenob said:

Because its supposed to be a much more reliable set up! Apparently coil over spark was only introduced because of emission laws. And if i convert it i will free up loads of outputs in my ECU.

By emission laws do you mean EMC/RFI? otherwise that statement make little sense.

[mgbond]

Gadgeroonie said:

the 2.5 has 6 ht leads - but if you look carefully there are 2 leads per coil

so it is 3 coils not 6

it runs wasted spark - not really a problem


however why would you want to do it if you have 6 working coils ? is there a coil gone down ?

So are you saying that although I'm running fully sequential I'm actually still firing as semi sequential?

[951]

2.5bluenob said:

Because its supposed to be a much more reliable set up! Apparently coil over spark was only introduced because of emission laws. And if i convert it i will free up loads of outputs in my ECU.

Well, it's a more simple setup because there is only one coil, but coil on plug does have some inherent performance advantages as each coil has a longer dwell time.

I would have thought that going to a single coil setup would be a backwards step?

Probably not enough to make a difference on a standard car though I guess.

[F.C.]

mgbond said:

So are you saying that although I'm running fully sequential I'm actually still firing as semi sequential?

If you have three coil packs with two leads on each, then yes there will be a wasted spark on the opposing cylinder for that coil pack,
Not a big deal though.

[2.5bluenob]

[quote=Adrian that statement make little sense.
[/quote]
Not my line of work so your probably right lol
Someone who makes wiring looms as his job. Was just sharing some knowledge and advise. As you can see it was a little lost on me.

[2.5bluenob]

GTO600 said:

Not knowing why you want all the extra outputs but wouldn't be better to look at a different ECU ?

Kevin i just want to have All the extra sensors etc that i can possible have to try to make my car safe!
I thought the omex 710 is a good ecu but i dont know. Is the omex capable of running extra sensors and limp modes ect?
Also ive had a new wiring loom made for the omex so i spose i dont really want to bin it! although im open to suggestions and advise?
Cheers
Steve

[Adrian W]

2.5bluenob said:

Kevin i just want to have All the extra sensors etc that i can possible have to try to make my car safe!
I thought the omex 710 is a good ecu but i dont know. Is the omex capable of running extra sensors and limp modes ect?
Also ive had a new wiring loom made for the omex so i spose i dont really want to bin it! although im open to suggestions and advise?
Cheers
Steve

Omex 710 is a great ECU, very flexible and bucketfuls of I/O, who i are going to get to map it

Edited by Adrian W on Saturday 12th October 09:58

[GTO600]

2.5bluenob said:

Kevin i just want to have All the extra sensors etc that i can possible have to try to make my car safe!
I thought the omex 710 is a good ecu but i dont know. Is the omex capable of running extra sensors and limp modes ect?
Also ive had a new wiring loom made for the omex so i spose i dont really want to bin it! although im open to suggestions and advise?
Cheers
Steve

Hi Steve, the Omex as Adrain says has lots of I/O so should easily be able to do what you want to do & leave the coils as they are which works really well. The 710 also has some logging all be it limited but is a step up from the MBE.

Trevor can map an Omex & Steve at T&R knows them well, otherwise Darren at Noble Motorsport has a lot of experience using the 710 on Nobles & he would be my preferred.
Kevin

[Gadgeroonie]

mgbond said:

Gadgeroonie said:

the 2.5 has 6 ht leads - but if you look carefully there are 2 leads per coil

so it is 3 coils not 6

it runs wasted spark - not really a problem


however why would you want to do it if you have 6 working coils ? is there a coil gone down ?

So are you saying that although I'm running fully sequential I'm actually still firing as semi sequential?

your fueling is fully sequential
your ignition is wasted spark

[2.5bluenob]

Adrian W said:

Omex 710 is a great ECU, very flexible and bucketfuls of I/O, who i are going to get to map it

Edited by Adrian W on Saturday 12th October 09:58

i was going to get trevor to map it as he has mapped my car a couple times before on this ecu, all be it on a 2.5 though.
Cheers
Steve

[2.5bluenob]

GTO600 said:

Hi Steve, the Omex as Adrain says has lots of I/O so should easily be able to do what you want to do & leave the coils as they are which works really well. The 710 also has some logging all be it limited but is a step up from the MBE.

Trevor can map an Omex & Steve at T&R knows them well, otherwise Darren at Noble Motorsport has a lot of experience using the 710 on Nobles & he would be my preferred.
Kevin

Ok thanks Kevin. im going to use trevor. i have used noble motor sport as they fitted the ecu and mapped it for me about five years ago. But trevor is not that far for me to travel and knows his stuff! Also i think track n roads rollers seem to tally up with other rollers bhp figures.
Steve

[Adrian W]

2.5bluenob said:

Ok thanks Kevin. im going to use trevor. i have used noble motor sport as they fitted the ecu and mapped it for me about five years ago. But trevor is not that far for me to travel and knows his stuff! Also i think track n roads rollers seem to tally up with other rollers bhp figures.
Steve

Steve Greenald at Track and Road is very good with Omex and Gems

[2.5bluenob]

Adrian W said:

Steve Greenald at Track and Road is very good with Omex and Gems

When ive been to track n road before both Steve's have been there and able to help when my car wasn't behaving!
So hopefully it will be the same next time i go ( but without the car misbehaving)