RS ecus

[dannyh172]

Hi all.... just wonderin... what does this renaultsport ecu consist of?? What makes it special? What does it do...and quite importantly...how much!

I believe Yozza has one? Can u give me any feedback mate?

Cheers, Dan

 

[JAY172]

£220 from hillpower.same as a normal ecu but the mapping is different.

 

[dannyh172]

what does the change in mapping cause? more economy?faster?

Just thinkin of buying one!

 

[stan*]

the map on an ECU gives the fuelling and ignition timing required for an engine run. the criteria for each is different depending on how much power u want to produce.

a MAP is a cross reference grid. it has 16 rpm sites on the x axis, and 16 load sites on the y axis. each site contains the data that the ECU requires to give fuelling/ignition for max. power.

 

[dannyh172]

sorry...i meant the RS ecu in particular!

 

[BenR]

that is what it changes....fueling and ignition.

 

[JAY172]

different mapping will alter ing timing,injection duration etc.the rs ecu will have a mapping thats beneficial to driving the engine hard whislt the normal road going ecu is a comprimise between performance,economy and drivabilty under light throttle positions.

 

[stan*]

"a comprimise between performance,economy and drivabilty under light throttle positions."



ALL throttle positions

 

[JAY172]

there not nes mapped just for max power either.

comprimise-performance(driving hard,full throttle etc)

-light throttle conditions(steady normal driving)

didnt quite phrase it right but i know what i meant.

 

[stan*]

a road map isnt for max power, no. but wots the point in goin 2 the trouble of re-mapping and not goin 4 max power?

 

[JAY172]

doesnt the group n ecu improve power/torque through the revs but not nes increase the standard maximum bhp?

 

[stan*]

ive no idea wot the grp N ECU does.

id imagine it will incraese max power if it gives gains further down rev range, but depends wot standard map is like

 

[Eddd]

There are four Grp N ECUs

(77 11 129) 391 F4R 730 €205.32

434 F4R 732 €203.51

506 F4R 736 €205.32

630 F4R 736 with Grp N Cams €215.20

Prices without VAT. from Alpine Renault catalogue

 

[stan*]

doesnt tell us much about the mapping tho does it?

 

[Neil82]

Whats the difference between them Eddd? Not sure which one ive got, will go see if any of those numbers are on it.

 

[Eddd]

Damned if I know. Looks like they are for variants of the F7R Engine. The engine they list in the Group N catalogue is the F7R 737 PN: 60 00 072 545

Price:€3055.02

Note: these prices are all in Euros not Sterling

 

[crono33]

max poower iw not everything. also driveability is very important. if the power band is too narrow perhaps the power will be higher but lap time will be worse



Quote: Originally posted by stan* on 09 March 2004
a road map isnt for max power, no. but wots the point in goin 2 the trouble of re-mapping and not goin 4 max power?

 

[stan*]

well if ur talkin bout lap-times, driveability is gonna be comprimised. a race engine needs max power/torque to be further up rev-range, therefore driveability is comprimised. but that isnt of much importnace, cos u very rarely drive round town in a flat out race car.

anyway power bands are determined more by cam profile/timing, so if ur gonna map a road car-u might aswell go for max power/torque