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I have a few more facelieft ECUs in stock. I can provide R50 CVT or manual and R53 S, JCW or GP1 in automatic or manual transmissions, pre and post facelift configs. The US never got a automatic R53 JCW but I can provide the EU version of that code.
jcw code has quote a few changes, notably increased redline and scaled for 380cc injectors along with fuel/air table changes for a 11 % pulley. GP1 further raises redline and air/fuel tweaks, along with a change to the ignition timing temp reduction table.
Q: Do I need to send my keys? ews? Nope and nope these are plug and play drop in ECUs with EPA bone stock tables.
Q: Prefacelift too? Pre-facelift have gear ratio changes that do require a new checksum as a few tables are modified to address the gear ration difference, however they have been passing california tests. These ratio changes are required as cruise control wont work as it expects specific speed/rpm.
Q: I have a bad ews module will this work? Yes, but I dont recommend bypassing the EWS unless it's a track or race car. The EWS key sends the starter solenoid signal through the EWS but it can be bypassed with these ECUs.
Q: I have 550cc injectors? I can assist but custom tuning is done by adrian and there is a additional charge from him.
Last edited by MrBlah; Dec 22, 2024 at 02:54 PM.
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I have a few of these in stock again, jcw tune, jcw tune with pre-facelift gearing (not cali emissions compliant) and GP1 tunes.
I get asked quite a bit what's different between US JCW & GP1 tunes, here's the list, I view the GP1 tune as a more refined JCW tune.
for those that do not know, these ECUs are narrow band and do NOT adapt at high load (+30 throttle or so), they simply go to the stock fuel table calculation formula and +LFT to it so there is a small adaption if LFT is trimmed up or down. Those with a wideband will easily notice this as the AFR will stop cycling to stay around 14.5 and will drop to 13 and taper down to low 11s at high rpm. The stock fuel table calculations are rich enough that we are able to add cams and pulleys and still be safe, the knock sensor logic aggressively pulls timing.
JCW to GP1 changes:
RPM limit increased from 7k to 7168
Changes to the rev limiter timer, these cars do not have a hard limit they have a time factor built in that's why it's when you hit the rev limiter it's not a kick in the nutz it's more of a soft limit, throttle plate is closing before you hit the max RPM in the tune
Top speed per gear increased to match
Ignition timing changes on four maps, I don't recall if this is making it leaner / more torque (more advance) or richer (retard) I'll check next time I'm in winols
Timing correction lookup changes
Quite a few table changes to the open loop fuel (wot) most of the changes are making it leaner
Some changes to the catalyst overheating prevention
And some maf air calculation changes
I have purchased 2x of these now from him..
one ecu is fully tuned by adriancl and one im running asis with the gp1 tune in my other car ,both are 04's, these facelift ecu's are much better.. lemme tell ya , its a great upgrade and the seller is hassle free and helpful...
thx again...
Do you know anyone that can flash my ecu to immo off for my race car?
I don’t need a tune.
its a ms5150 facelift ecu that needs to be benched to go immo off
TIA
Having trouble sending a message. I am definitely interested in one. Do you still have GP tunes? It should just drop into my 05 S after supplying my VIN, correct?
Mr blah- what can you do with an ecu from an R50 2003 5spd ? This is going to be a dedicated race car. Thanks
I Can setup a newer facelift ECU with the later code, and disable the immobilizer so you can get rid of the key fob, EWS modile and install a push to start button. If you want more power Adrian has done some development on the r50, things like a bigger throttle body.
I assume it's possible to revert a 2006 factory JCW car's ECU back to its original stock JCW 11% pulley tune?
I have a car that has a Behe Performance tune on it now (a long out of business shop in Beltsville, MD), and I want it gone. I'm painstakingly restoring the car back to stock, as it's a fairly rare factory Checkmate with JCW and Aero package. The tune is noticeably more raucus as compared to my other stock JCW's, but don't need it or want this on my car at all.
Do I contact Adrian directly, or is it done through you?
