Hi guys, I don't know anything about remaps apart from the handheld units like bluefin and dreamscience etc so any help would be appreciated.

Basically can a cars standard ecu be reprogrammed to create a custom map or would you have to buy an aftermarket ecu like omex or similar.

I remember reading an article in fast ford about remapping but it was a bit over my head so any "remapping for dummies" answers would be great!

Ps, Car In question is a focus st225. Thanks!

 

They can have a custom remap done mate. Don't know the ins and outs of it but it can be done. Just by a tuner not a hand held unit.

 

You'll be hard pushed to find an ecu that cant be mapped these days.

Motorsport developments should be able to sort you out.

North of the border...... Sitech racing perhaps.

 

That's great thanks for the replies.

I was looking into getting a rs turbocharger and rs injectors so in theory if I bolt these on then a tuner like sitech could map the car to suit these modifications.

 

i'd talk to a tuner first, you'll be surprised how well they go with just a remap, the turbo's aren't exactly stressed as standard.

 

They go spot on with a remap.

Panel filter DS map and decat back mine was estimate 270.
Lad that bought it off me had a custom map and down pipe and got proven 284.

God I miss that car

 

I've got stage 3 bluefin and the usual filter, intercooler and exhaust and it pulls like a train but you know what it's like you always want more power

 

Best bet is to get the parts And get them fitted just before mapping/if possible by the garage mapping it.

 

only so far you can go before it's worth just getting an rs though, the blocks on the st are weaker apparently.

 

Think it's the liners that differ. Could be wrong.

 

the liners are weaker on the st, i'm sure there is more to it than that given jamsport offer a "secret" fix for a grand for st engines, liners on their own wouldn't be much more if that's all it was i'd have thought.
i'd speak to mountune, msd, sitech etc. they will be able to give more facts on the upgrades.

 

BD Performance in Wrexham are heavily involved with ST tuning. They do a block mod as well.

Like fuck would I pay £1000 for a "secret" mod.

 

Ive heard a few ST owners talking about HEX+ remaps,
I'd never heard of them before and don't know what there like, Maybe someone on here
has heard of them?

 

Not heard that one. Not on STOC any more though so may be mentioned on there.

 

Google them. Seem to offer the same adaptions that can be had from the EDC ecus.

 

the mod is most likely just dowelled block/ liners of a girdle fitted to waterways to support liners.
either way there is a weak link in the engine and depending on wants it would be better just to get an rs, plus they have more trick bits fitted as standard.
I grant you they cost more from the off, but getting much cheaper all the time.

 

Seen a few pics of cracked liners. Think there is an issue on earlier ST's although some have cracked that were standard.

Wonder how much an RS engine would be?

I'd love an RS. I'll have one in time.

 

Block mods are simply shims fitted between the slots. There are now plenty of tuners on the block mod bandwagon just that JS tried to bleed as much money as they could from it.

ST tuning is plentiful and there is simply no need to go for any sort of custom mapping as there are packages catering for over 360bhp and more. Bluefin, Dreamscience, Collins Performance, Revo, JW Racing, Pumabuild, Pumaspeed all offer maps for STs and there are probably some more I've missed. Some maps allow you to run RS injectors too. Bluefin and Dreamscience do for sure. I don't know about the rest. You can expect 320bhp+ from bolt on mods and injectors before you start playing with the blower. IMO there ain't much need for well over 300bhp as it all becomes about how you put it down. Mine will easily spin all its power away if not careful enough and its under 300bhp. Get up to those power levels first before considering the RS Turbo route.

 

I code for different MAF's, different injectors, different turbos - basically anything and everything

Rick

 

Ah a man in the know.

Am I right in thinking these can't be live mapped, but the map uploaded, altered as requires and uploaded again?

 

Correct. Very few cars can be liive mapped now unless you are the OEM,

However, it isn't really needed in the same way as old ECU's. There are hundreds of internal variables that need to be monitored nowadays. They are changing very quickly so the only way to know what is going is to datalog. You then study the results, make changes, and datalog again.

Some semi modern ECU's can still be live mapped but there complexity again means it isn't that useful apart from perhaps initial MAF or injector calibration. It certainly isn't any use when I'm at Brunters doing 180mph!

Rick

 

So basically you account for mods, make sure fueling, boost, etc is at safe limits and the ecu will make the minor adjustments needed? Ie I didn't have an intercooler yet the car still made good power (although not the best) but once inlet temps get to much then the ecu will back off the boost? That kind of thing.

Or it just cracks on within those safe parameters set by what ever map?

 

basically modern ecu's have so much info given to them frequently, that if the inlet got hot the fuel and timing would be adjusted accordingly laid out on tables, more heat more adjustment, more power lost, no need to back boost off. it's just timing would be less advanced and fuel increased to allow more cooling of the pistons/cylinders.

rick is pretty good from all i've heard, i did want him to map my old zetec turbo, but stripped the car before it's full potential. if i bought another turbo's car, i'd be seeing unicorn racing

 

Sort of, yes. You are right that the ECU is constantly making adjustment. You actually set various targets, and then it's up to the ECU to reach them. It has complete control, due to the fly by wire, not you. If it's happy, it will achieve those targets. If not, it won't. As an example, boost set point (which you don't map directly) is constantly altered depending on inputs. Air temp is one of them. Once temp gets above a certain point, boost will be reduced, yes. What you may be suprised is that as temperature drops, boost is also decreased. This is not a safety feature, but a feature which results in the car making the same power whether it is hot or cold outside, whether it is at sea level or on top of a mountain.

Adding an intercooler and not mapping the car will result in a slightly lower boost pressure as the cooler air means less is needed by volume to make the same power.

Rick

 

/\ benefit of modern cars/ecu's where they directly control boost, back in the day boost wouldn't have been dropped off so you'd be begging for a cold day for more power.