[Mk2] [NA] Can i get my N/A Re-mapped for more power and better fuel economy??

[BiGWiLlYsTyLe]

Hi people,

As above and if anyone can help how much does it usually cost??

Thanks

[steve b]

not so you'd notice any diffence

[MrGazz2]

what about swapping the ecu in a jap car for its uk equivalent to make it run properly on normal fuel instead of super unleaded?

[BiGWiLlYsTyLe]

HHmm what will that do exactly as im not very good stuff like that lol

[SevenR]

As far as I know, you can't do much with the n/a with regards to ECU mods. Most 2's over fuel, even my UK one. I think if you go for a session on the rolling road, they can sort your car out to run just right.
But don't quote me on that!! LOL

[steve b]

As far as I know, you can't do much with the n/a with regards to ECU mods. Most 2's over fuel, even my UK one. I think if you go for a session on the rolling road, they can sort your car out to run just right.
But don't quote me on that!! LOL

The only way they can do that is with a piggy back ECU or a new standalone ECU. I wondered about borrowing my Eunos LINK G3 and installing it in my rev3 n/a MR2 to see if I could get any more out of it. I thought the person to ask if it was worth bothering with would be Lyndon at Rogue, he said .. no nothing to gain.

[benson]

mate, you might want to look into a mapecu...not sure how many people there are in the uk that fit them and map but know that Eurospec nr Guildford are an approved supplier and fitter (google them and you'll find it). Theres a bit of info on their website about them..I think on average you can expect about 15bhp out of them.
The reason I know this is that my fto is in at the mo having it done its not cheap but hopefully will be worth it..I'll be getting my car back in about a weeks time so can let you know when I get it back

[steve b]

..I think on average you can expect about 15bhp out of them.

Believe it when I see it on a rev3+ MR2 (that is believe it after seeing it run at a club dyno day not where the chip was installed with other people with standard cars as a guide). Anyone ever seen a stock block 190bhp n/a other than a beams?

[benson]

Believe it when I see it on a rev3+ MR2 (that is believe it after seeing it run at a club dyno day not where the chip was installed with other people with standard cars as a guide). Anyone ever seen a stock block 190bhp n/a other than a beams?

Well I'm not sure what they could get out of a n/a mr2 but I know they've done quite a few gr ftos and the average has been around 10 to 15bhp gains

[SevenR]

..I think on average you can expect about 15bhp out of them.

Believe it when I see it on a rev3+ MR2 (that is believe it after seeing it run at a club dyno day not where the chip was installed with other people with standard cars as a guide). Anyone ever seen a stock block 190bhp n/a other than a beams?

Steve. Best I've seen non Beams was Marc_mr2 on the OC.
He had a Rev 3 with Cat back system, induction kit and running on V power. It made 188FWHP on Dasteks dyno last year.
Not bad. My rev 2 with only an induction kit made 162FWHP. I wonder what an exhaust would have pushed it to??
In fact portgordon on the OC had the same car as me without the filter, but with the exhaust, and he made 172FWHP
Could my car have made 175 with an exhaust who knows. Anyone want to lend me one? LOL

[MrGazz2]

Basically your asking for two seperate things, you can either tune for power or economy, not both, simply because the more power you demand, the more fuel you use up to get that power.

My comment about swapping ecu's was to get better economy in a Jap car from a UK 95ron mapped ecu (Jap cars are mapped to 100ron fuel as standard - therefore it runs better, more economically on super unleaded over standard UK unleaded fuel).

My feels sluggish when using standard fuel over super unleaded and its a jap car. If I could swap the ecu from jap to uk without any negative side effects to make the engine run better on standard uk fuel, I would give it a shot to save on my fuel bill.

[steve b]

Basically your asking for two seperate things, you can either tune for power or economy, not both, simply because the more power you demand, the more fuel you use up to get that power.

Crap.

High load areas you tune for power, low load for economy so you can very much tune for both, low load run lean as far as 16:1 even and loads of ignition, nail throttle it reads a totally different part of the map.

My MX5 had a lot of work by Lyndon & Ryan done for power, a bit for motorway cruise by Ryan, I've spent time doing all the other load sites at different revs I now run a car that pulls like a train and returns 35+ mpg

[GeoffC320]

Basically your asking for two seperate things, you can either tune for power or economy, not both, simply because the more power you demand, the more fuel you use up to get that power.

Crap.

High load areas you tune for power, low load for economy so you can very much tune for both, low load run lean as far as 16:1 even and loads of ignition, nail throttle it reads a totally different part of the map.

My MX5 had a lot of work by Lyndon & Ryan done for power, a bit for motorway cruise by Ryan, I've spent time doing all the other load sites at different revs I now run a car that pulls like a train and returns 35+ mpg

Quite right. My old Rev3 turbo always averaged 23mpg or so after I had the Unichip fitted - despite running at least 60bhp over stock. (This was with very little motorway cruising). Before, I'd be looking at 20mpg at best.

[benson]

just in case anyone was interested, just got my fto back from having the mapecu.
Exactly the same setup, same induction kit before and after; results were 172hp to 188.6hp
Again not sure what they could do with a n/a mr2....

[marc GT Turbo]

my car being an import is set up for 100 ron fuel . so i have to stick v power in. if ive been caught out and had to use standard fuel it then runs like crap ! pinking , slugish and doesnt sound right. the thing with v power though , and they dont tell you this , v power is a brand yeah , and in ireland v power can be as low as 95 ron. in germany its 100 ron and here its supposed to be 99 ron . but it does vary throughout the uk my friend had his car re mapped and he had problems ! it was down to the fuel in the end. the v power is not always 99 ron !!! something else to think about there , fuel quality

[dawolf]

Seems like a bit of a contradiction to me. I can't really see how you can gain more power but have better fuel economy. It's either one or the other. Surely standard ECU's aren't setup that badly, although I know they have to take into account lower RON fuels.

[steve b]

Seems like a bit of a contradiction to me. I can't really see how you can gain more power but have better fuel economy. It's either one or the other. Surely standard ECU's aren't setup that badly, although I know they have to take into account lower RON fuels.

They don't work like that, imagine an excel sheet, each box has a value in it higher value = more petrol, the Axis are MAP (manifold air pressure) and RPM when your doing 60mph in 5th at say 3000rpm foot just on the throttle to keep you at your speed the table will be reading at 3000rpm and a MAP of say 60, in a turbo you boot the throttle the MAP position will change to have more fuel as pressure goes positive. So all the positions in the grid that are "cruise" can be leaned out to save fuel on a re map, where as all those under load can have fueling increased or maybe even decreased (remember most turbos run excessively lean for safty.

N/a works in the same way except you'll never get positive pressure, you'd probably look at throttle position + MAP + RPM, different revs, different MAP readings, different throttle positions mean reading from different places on the table.

Same happens with ignition at the same time.