Mace VY V6 PCM Tune Review

[VY03]

Hi all

Just recently had my 2003 acclaim tuned by Mace Engineering

Mods done

Mace bored out 69mm throttle body
Mace cold air intake
Geni extractors
2 and half inch catback manta system with rear only straight through muffler

Noticable improvement in the low down torque range say from 2000 to 4000rpm and the auto shift points
quicker and firmer.

Engine thermo fan comes on earlier as well I noticed

Basically the fuel and ignition maps are recalibrated but keep in mind that you must run 98 octane fuel due
to being tuned for it.

Good thing is that the new PCM is a outright purchase so you don't need to send in the stock one to get
reprogrammed. You just need your VIN number and modifcations details to suit the tune a new PCM gets
posted out via express post.

Kudos to Steve and the team at mace engineering for the professional customer service

Any questions people and I'll answer them

 

[MACE]

Hi all

Just recently had my 2003 acclaim tuned by Mace Engineering

Mods done

Mace bored out 69mm throttle body
Mace cold air intake
Geni extractors
2 and half inch catback manta system with rear only straight through muffler

Noticable improvement in the low down torque range say from 2000 to 4000rpm and the auto shift points
quicker and firmer.

Engine thermo fan comes on earlier as well I noticed

Basically the fuel and ignition maps are recalibrated but keep in mind that you must run 98 octane fuel due
to being tuned for it.

Good thing is that the new PCM is a outright purchase so you don't need to send in the stock one to get
reprogrammed. You just need your VIN number and modifcations details to suit the tune a new PCM gets
posted out via express post.

Kudos to Steve and the team at mace engineering for the professional customer service

Any questions people and I'll answer them

Ah excellent to hear it's all sorted Glenn

If you have any questions/concerns please don't hesitate to ask them

Cheers,
Steve

 

[VY03]

Just wouldering what else was changed in the tune apart from the fuel,ignition, thermo fans, and auto shift
points

 

[MACE]

Just wouldering what else was changed in the tune apart from the fuel,ignition, thermo fans, and auto shift
points

From my understanding these were the main changes undertaken with the tune.

If you have any other questions please don't hesitate to ask.

Cheers,
Steve

 

[vsv6dude]

What about fuel use ? Improved or use more fuel ?

I thought with the MACE chips you can still run 91 unleaded, as some of the factory tuning was retained ?

 

[VY03]

What about fuel use ? Improved or use more fuel ?

I thought with the MACE chips you can still run 91 unleaded, as some of the factory tuning was retanined ?

Improved fuel economy as now my average is 8.2lt/100km give or take on highway driving...around town it didn't use that much more.

Mace memcal chips can still run on 91 or 98 octane

For some reason when I got new the PCM it clearly stated in the custom tune form it said "please note you must use 98 octane fuel.

 

[vxcp]

if it tells u to use 98 and u use 91 what happens tho i use 98 all the time because at the end of the day its only a couple bucks more but just wondering what would happen if u used 91 instead of 98??

 

[The1]

will retard, possible pinging/knock if it's really bad fuel and loose power.

 

[MACE]

As above ^^^

 

[vsv6dude]

As above ^^^

So with MACE memcals use must 98 ron then.

I am assuming the PCM stated in this thread is supplied by MACE.

The advertising for the memcals states power increase is available from even using 91 Ron , see below
"Each MEMCAL is recalibrated to suit your specific engine and gearbox type, as well as the model of Commodore you own.

Horsepower gains vary beteen different models and the condition of your particular engine. Our estimate is
a gain of about 8 to 12kW using standard 91-RON fuel, with an extra 2% using premium fuel."
There is no room for compensation for lower quality fuels ?
I infer from the comments in RED its a multi use memcal for all fuel types.

MACE you need to make the website clearer.

Do you mean you when state "recalibrated to suit your specific engine...." each memcal can be customised to your selected preference for fuel.
And once programmed to your fuel preference you must use that fuel whilst the reprogrammed memcal is in the computer.