RE Amemiya ECU

[festa]

I have an RE Amemiya chipped ecu for an FC from japan (not fitted yet) my FC is a JDM so its factory ecu is tuned for jap hi octane fuel but ive herd that installing the chipped ecu may damage the engine because of the uk fuel is anyone else running one of these ecu\'s or have any advice about them
Cheers

[m1tch]

I have an RE Amemiya chipped ecu for an FC from japan (not fitted yet) my FC is a JDM so its factory ecu is tuned for jap hi octane fuel but ive herd that installing the chipped ecu may damage the engine because of the uk fuel is anyone else running one of these ecu\'s or have any advice about them
Cheers

Hey mate, its best to run high octane stuff like V power or Tesco 99RON, its a performance car and needs performance fuel. If you get an aftermarket ECU like a Power FC, Emanage ultimate or a microtech it can be mapped for UK fuel, but for the time being, keep with high octane.

[festa]

What about running the chiped ecu on tesco 99 any reasons why this would cause engine damage or should I stick to the factory ecu?

[m1tch]

The higher octane fuel will reduce the chance of detonation on boost - not good! The chipped ECU, as its mapped for 100RON takes this into account and can run slightly different settings to get more power but reduced safety margins, but can get away with it on higher octane fuel.

Is your ECU UK spec or jap spec anyhow? What is the RE-A ECU mapped for?

[festa]

The ecu in the car is the factory jap one, the chipped one I got off ebay is set up for higher boost, bigger exust, removed speed cut out, higher rev cut out etc and said the fuel map was modified.
A bit vage but you get that when you buy second hand parts, I dont think its to much of a change from the factory settings I think the main thing it does is up the fuel to the the engine so you can run slightly higher boost.

[dthebuk]

I\'m under the impression my fc has  RE-A chipped ecu. though the ecu and the car is english.

If its one of the re-a chips that are usually sold on ebay it will have;
removal of fuel cut (when running above stock boost)
removal of rev limit
and a map for higher boost(0.9 bar max), an upraded air filter, full through exhuast and an uprated intercooler.

Mine has been run with a full exhuast, and air filter. I can only assume that because the exhuast was a full through it was running more than standard boost, i never had a boost gauge though.

Hasn\'t let me down so far, and the previous owner thought it was kicking out about 240 bhp

hope this helps, don\'t know what the deal with the jap fuel is, though i always run mine on v power

[festa]

Yea that sounds like the spec, did you have any problems when runing the re-a chipped ecu I know they use 100 ron in japan so useing tesco 99 can\'t be that different.
Check this site out they say tesco 99 is the best after doing loads of testing. http://www.thorneymotorsport.co.uk/index.html

[m1tch]

0.9 bar is about the point where the OEM fueling and the turbo runs out of puff lol the OEM ECU doesn\'t run the OEM injectors to full duty cycle but will cap them at a safer level. The Knightsport ecu (which I have) and the RE-A ECUs will run the injectors fully to probably about 92% duty cycle which is MAX, if your injectors aren\'t in tip top condition they could fail on full boost meaning the engine will run lean and the engine will probably be lost lol.

I havn\'t gone past 0.8bar yet, mainly because my clutch has been eaten by the engine and the fact that the OEM wastegate isn\'t strong enough lol should be running max mapping and boost this year though I have all the shiny parts I need in a box next to me

[Prof]

I\'ve run a Blitz Access chipped ECU from Japan in an FC for a few years - as a daily runner - I run 99 RON and have since the ECU was fitted.  I\'ve had a couple of engines fail - but never because the ECU failed.
 
All I would say, is check the current ECU for any error codes - and then when you swap the other ECU in and do the same check - if you get no codes then chances are you\'ll have no issues.
 
The chipped ECU\'s usually have mapping for higher than stock boost, rev/speed/boost cut\'s removed, and have more agressive timing - they are designed to get the most out of exhaust/induction/intercooler mods and some are for upgraded turbo as well - you may not get much out of a stock setup with one of these ECU\'s, but if you\'ve done some of those mods then the ECU will be a useful upgrade.  Ideally you want to match the ECU to your mods - as these chipped ECU\'s are a fixed map - not alterable.

[dthebuk]

festa - nope havn\'t had a single problem with the engine. The only reason its still not running is because the exhuast split itself after i stupidly missed out a hanger when fitting it.

Mitch - agree with you completely on the condition of the fuelling system but i have spoken to a couple of people now who\'ve run the stock turbo over one bar (though they say theres not a lot of point) and havn\'t had any problems. may be this is because the turbo becomes pretty inefficient after 0.9 bar. Either way, afm to check all this stuff is a must and if you\'ve got a map up to 0.9 bar whats the point?

prof - are these other chips for hybrid turbo\'s and do you have any other information on them? only reason i gave up on a hybrid was because i thought i\'d have to fork out for a mappable ecu.

[L18M]

from my findings (namely from their respective websites), most of the jap tuners ecu\'s (re-a, r-magic, blitz etc) are \'universal\' for \'stage 1\' mods.
seldom see these aftermarket ecu\'s tuned for individual hybris turbos etc as they usually would use apexi pfc / microtech etc.

only main differance i\'ve read is some are tuned for larger (150%) IC, but most are induction cone, exhaust, higher boost, remove speed limit.

[dthebuk]

so how are these maps created? Does some use something like a pfc then copy the same map onto a chip?

[festa]

the intake and exhust are done and the ic is stock, so I should it should be ok to run the chipped ecu on a safe boost level I don\'t want to go to high and risk the engine at this stage.
Whats the best way of uping the boost pressure to about 0.7 bar?
Also is there any other small mods I can do to up the power I\'m planing to do do a proper job next year after enjoying the car this summer hopfeuly with out breaking it.

[dthebuk]

should be fine with the ic as long as your not driving it really hard, i.e loads of drifting and always on full boost. though i\'d still recommend something a bit bigger just for added safety.

as for boost you can either go manual or electronic boost controller. not sure on the disadvantages of the manual, but they seem to be frowned upon. If you\'ve got a decent exhaust theres a chance you could be running 0.7 bar boost already, so i\'d advise on fitting a boost gauge first.

well the cheapest mod is stripping the thing, you could always look into getting an ally bonnet off a cab fc

[festa]

The ally bonnet is on the todo list, a boost gage sounds like a good place to start