So I've finally decided to show a bit if Interest in my escort. First job is get it on a rolling road for a set up. I'm hoping to drive the car as I'm only a few miles from the tuner. I'm running a standard 2.0 silver top zetec on CBR1100 carbs with 4 branch and full exhaust. I'm using megajolt programable ignition and running a base map I got off tinternet. I've used a friends gas analyser to set up my idle and balanced the carbs correctly. I've got a nasty flat spot between 3300rpm and 4000rpm. The car bogs down and over fuels terribly. Do I need to advance or retard the timing to help clear this? I understand I'm not a engine tuner nor do I pretend to be. I just want to make the car more drive able to get me the short journey to the garage.
All help welcome

 

Can you post up a screenshot of the ignition advance map? Also more details about the flat spot (e.g throttle angle), what are you using as the load for the megajolt tps or map

 

im not using either. Im sure i was told i could use it and have only a 2d map?
heres the base map im using
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For a start a chunk of your map is totally wasted and unused. Your load only needs to go to 100kpa

 

Are you using TPS or MAP?

 

Far from perfect, but try this for a base map

 

In fact totally ignore the above.
How aren't you using MAP or TPS? The megajolt is doing the grand sum of F-all without one of those inputs.
If you've been able to take it out to get it to 4k to know this issue exists, then just take it straight to a pro who can then fit the Megajolt correctly.

 

I'm guessing from that response I can't run it on a 2d map then?

 

An example of a 2d map is:
RPM
vs
MAP

At the moment, you are using 1D using only RPM as in input which essentially rules the map/megajolt as useless as they are doing absolutely nothing (a mechanical vacuum distributor does more)

 

Your megajolt ecu will be either equipped with a MAP sensor or if not it will be TPS.
If its got a map sensor (little black nipple sticking out the side) then literally plumb a vacuum line from this into your carbs (best to link a take off from each runner so you have an equal pulse across).
If its TPS... well then you need a TPS fitting/wiring in.

 

Looks like I need to buy myself a tps then! Thanks for the insight bud