Newbie needs help

[bunta20v]

Hi Peeps

Looking for some help on this one. Im about to install a 20v 4age blacktop into a MK2 Escort. My setup is complete in terms of a uncut wiring loom in great condition and every stock sensor needed.
Problem is the distributor wants to be where my bulkhead is and im not cutting it. (best part of the car)

I have spoken to RAW engineering and they have a OMEX 600 setup which is distributorless and runs off a front mounted trigger wheel (crank) but the setup is costly.
Just wondering if VEMs can do the same with modification to the existing loom.

What would be helpful would be a definite list of what I need to buy to get this setup working on vems then I could price this up.

Thanks in advance

[rob@vems.co.uk]

When all is said and done it makes more sense to get one of the VEMS v3 harnesses,  you can custom fit this to your installation, and either take the sensor connectors from the loom, or buy new from http://www.dataspares.com/acatalog/cconnectors.html I got all of my Honda B16 connectors off there.

In all honesty there is no cheap solution to all of this, it will cost you either time or money.  I've been involved in a fair number of 4A-GE installs and they have all benefited from the front mount trigger and coil pack.
You would need:

VEMS
Bosch LSU4 wideband
V3 Harness
Front mount trigger+VR Sensor
Coil pack
Custom HT leads.

[uzelac]

Front mount trigger+VR Sensor

VR ? Ain't HALL better ?

[rob@vems.co.uk]

There are more VR based 36-1 trigger systems available than hall.
I had someone who makes 36-1 trigger wheels tell me that hall doesn't work! - so chances are that there's nothing much that will change and multi-tooth with remain VR

[GintsK]

I would say Hall setup is less sensitive to design imperfections. I mean GT101 or sensor from late "big block" ecotecs.

[GintsK]

Coil pack also is just one of choices. It is possible to use COPs and stay with distributor (but with trigger wheel). From distributor you can still source camsync signal - no requirement for precision.

[uzelac]

What is lost if setup doesn't use secondary (cam) trigger?
I know a theory, can't run fully sequential injecting/ignition, but i couldn't find what is the "cost" in performance if using wasted spark and batch injection?

[GintsK]

What is lost if setup doesn't use secondary (cam) trigger?
I know a theory, can't run fully sequential injecting/ignition, but i couldn't find what is the "cost" in performance if using wasted spark and batch injection?

Hard to say. With small to application injectors with >85% duty cycle I believe you do not loose anything in terms of maximal output.
From my experience biggest gain is idling and off-idle response. With properly inj angle settings engine acts significant better!

Distributor->COP there is no gain. Most modern coils for distributor setup charges fast enough.

[boostd audi]

sequential fuel doesnt make more power.. its more efficient. so you will run slightly less duty on sequential vs batch.

when you are making a shit ton of power this can help free up some extra fuel.  since the sequential is more efficient you can make more power and have more injector if needed. however it doesnt make power juswt bc its sequential

[GintsK]

I wouldn't say so. With oversized injectors, I believe, there is difference when to inject.
But for sure at everyday loads there is clearly appreciable difference. I mean phased injection. Sequential (in firing order) you can inject without cam sensor.

[uzelac]

Sequential (in firing order) you can inject without cam sensor.

You can, but you got 50% chances that engine will inject on compression stroke. Other time, it will inject before exhaust stroke.
To me, it sounds better to use batch because it works the same, all the time.

[rob@vems.co.uk]

I'll be honest, I don't think that this will necessarily answer the Gentleman's question.

The answer is, yes we can run 20V engines with the VEMS, but it will require you to immerse yourself in the workings of engines, and engine management systems.
If that's your thing then VEMS offers a great DIY system.  But if you want plug and play then you will be better to pay more and buy a commercial system, or get a VEMS installer off here to do the installation and tuning.

Hope that helps

Rob