paulr33

Members who have renewed this year are given a special SAU gift as a thanks for renewing. It's an SAU VIC Member keyring / bottle opener. Being in the wrong gear under "shootout mode" guidelines and correct dyno operation isn't mean to affect power output but every time I've seen a car dynoed in another gear the values are whacko, so dyno'ing in 3rd does skew the results unfortunately, which could explain why it was higher on AVO's dyno (makes sense now). The standard limp mode could be triggered by a few things, one of the main sensors fried should do it. Consult should tell you what sensor is toast. Look for the obvious ones, both AFM signals, water temp signal.

its the same as the vl commodore plug any commodore wreckers will have it

end tank design, fins, the core and pipework layout are more important than the core size its probably not a big issue

wastegates do not make noises there is no such thing was wastegate flutter the noise you are likely hearing could be compressor surge, as a result of no or a very tight blow off valve

No, you can't

Photos in here are okay

I have spoken with my supplier and they will let me do the wiring loom changes for me so this makes it even easier than we thought. I will simply setup the loom and required changes and then simply sell the loom to suit RB20 & RB25. It will be upto you to source your own RB26 PFC from either 2nd hand, new, nengun etc. I will provide some instructions on what to change on the hand controller before starting the car so it should be straight forward. More to come when I find out total costs from the supplier, I am unsure how much they will charge me to setup the custom loom and make changes then batch build them.

Hi robb, This is probably the 3rd GT3540 & Q45 combination I have seen that has the AFM maxing out really early. I am unable to offer much to help the situation. The only thing I can think of is the batch of Q45 most people are getting is the wrong version/model or has different firmware etc. To run twin afms on the single RB25 PFC you will need to either use the new SAFC II which has AFM duplexing support (twin into single signal) or use the Rb26 PFC. Using the Rb26 PFC requires a few changes and youll loose the factory VCT. If you have aftermarket exhaust cam gear then its not an issue as that negates it anyway.

updated added nismo 480cc injector settings added some info on using rb26 pfc on rb20 and rb25 (including link to EOI my thread)

The evo FQ400 was pretty impressive, the thing would just ramp from like 90rwkw to 300kw in the space of a few hundred rpm. I think from memory it was making 90rwkw ish at around 2900rpm then at 3300rpm it would just ramp to 300kw. nobbad

Thanks to everyone who attended the day and helped organising. Special thanks to Chris (Scotsman) and Scott (Chrisman) for running the BBQ. We had a nearly a 100 people throughout the day which was a fantastic turnout and had a fantastic number of new member signups and renewals. It really shows up club is starting to grow to a massive size and we have all the members to thank for this. Throughout the day we dynoed over 40 cars which is a big effort for everyone. Special thanks to RE Customs for having us on the day and providing the bbq, dyno and club facilities. RE Customs 16 Yiannis Court Springvale 3171 9548 3414 [email protected]

Wrap up thread here, please post your results and any questions here http://www.skylinesaustralia.com/forums/in...howtopic=161739

The PowerFCs will be new from nengun. Hopefully, I can just work on makes changes to the wiring loom only and the stock FC is simply a 26 FC. This would mean you would have to order the FC from nengun and the warranty would lie with yourself & nengun. I would supply the loom to suit and instructions on how to set it up to suit the RB20 or RB25. This would avoid me buying dozen's of 26 FC's and your normal warranty would be with the supplier directly. Otherwise I have to act as a proxy for the warranty on the FC

did you not research it before you brought it ?

good stuff, well done

happy birthday champ, have a good one

The price I have come up with is around $1250 for the unit. This would include all the changes needed and the standard box, jap manual etc etc and shipping to your address via normal aust post. The wiring loom alone costs about $200 and I have to allow for fluctuating aussie dollar / jap yen for the standard PowerFC unit. The legacy AP Engineering units are $1499 with hand controller so I think my price is reasonable.

lean? whats wrong with spot on 12 ?

tuning wouldnt be an issue as its a normal PowerFC. You don't have to run twin AFMs, the changes I make will make it use only 1 AFM and retain the stock RB20/RB25 wiring and AFM

If you are interested in a customized RB20/RB25 PowerFC please read: http://www.skylinesaustralia.com/forums/in...=0#entry2999521 and then register your interest

As we all know Apexi have ended production of the RB20/RB25 PowerFC. For whatever reasons, we don't care. There have been a few rumours surfacing around that the RB26 PFC will work on both the RB20 and RB25. I expect that it *will* work but some changes are required to be made to make it work and be user friendly. There are some known "gotchas" for either version and some unknown / risks as well. Known changes: - Injector wire changes - Injector setting changes - Airflow wire changes - Airflow setting changes - Stock map changes - 02 sensor setting changes Known "gotchas": - RB25 version will NOT have working VCT support - The RB25 engine by default has variable cam timing. This is turned on at 1800rpm and off at 4700rpm. Customers who have aftermarket exhauts cam gear are not affected by this known "gotcha'" as fitting aftermarket cam gear negates the VCT. Jaycar have a product to build your own "rpm" on/off relay system but its completely manually and you would have to do it yourself. - RB20 versions will face an issue with standard injectors and the correction involved. This is because we are limited to how much correction we can throw in. We are fairly certain it will be OK and work acceptably, you will have to dial in more fuel in the INJ map than normal to make it work. I will provide stock maps to suit this. - 02 feedback might not work. This is because the GTR PFC and stock ecu have no support for 02 heater control but GTST needs it Bonus Features: - Working airtemp support The mainstream RB20 and RB25 powerfcs do not support airtemp. That is they do not have the AIRT sensor and do not use it. The RB26 powefc does and you can simply purchase / find an airtemp and connect it up and it will work. This will provide air temp correction on the maps and show it on the hand controller - Twin AFM Support The "modified" version will support single or twin AFM depending on your power needs. So you can run say for example twin z32's or twin rb25s MAFS on your single turbo RB20 or RB25 - Twin 02 Support The "modified" version will support single or twin 02 depending on your power needs. So you can run say for example twin 02 sensors if you have a twin turbo setup. - Djetro Option The mainsteam RB20 and RB25 only let you choose LJetro, that is the AFM only version. The RB26 PFC lets you choose either lJetro (afms) or Djetro (maps) and either will work. I am unsure at this stage if it would work and how feasible it is (ie: Djetro Rb20) as you would need twin MAP sensors in a suitable location. How: I will obtain a stock Rb26 PFC and then with a suitable wiring loom adapter make the required changes. I will use software to edit the stock RB26 settings to suit which ever engine combination you need (RB20 or RB25) The loom that I had in mind The wiring loom adapter or pass through lets me make changes to suit your engine and not hack your existing car loom. This makes the 26 PFC still a 26 PFC and your car still a stock 25 or 20 engine / loom setup. So you can sell the PFC as a stock 26 PFC (just do a DATA INIT before you do) and sell your loom or change to a stock Rb20 / Rb25 ecu. The changes on the loom control include injector, afm and 02 sensor changes need and there is no secret "firmware" changes etc to it. It simply makes it easy for me to do my changes and for you as a customer to go back to stock and negates the need for you to hack your own loom. The PFC kit and loom (that I supply) will be a direct plug and play to your car. Plug in the loom to your current loom and then plug the loom into the PFC. Thats it, Away you go, run the self idle learn procedure and you are done. If you want to go back to the stock ECU or another ECU, remove the loom and plug it into the factory car loom. (no mess, no fuss) Why: I am trying this because there is an obvious lack of PowerFC's for the RB20 and RB25. People have been resorting to buying them off ebay and other places for mega prices $1500+ I feel that it should be cost effective and relativity easy for the user to get a PFC hence the work I am doing. I have my own full time job and this is not an ebay scam / make money deal. I am simply offering a service to modify 26 PFC's to suit RB20 and RB25. !! WARNING !! I will NOT provide a warranty, the ecu you receive off me is provided on a do so at your own risk. If it fries your coilpacks, melts your CAS, cooks your ultra super cool cam gear, melts pistons etc I cannot be held responsible. This is a completely UNSUPPORTED HACK and violates any warrannty / guarantee. Of course I will test each unit but there are always risks. I have been assured that other than the changes mentioned above are fairly normaml and that its a direct swap. !! What do AP Engineering do !! AP Engineering for some time provide hacks on mainstream PFCs to suit other models. The RB20 AP engineering unit is simply an RB25 ECU with removed VCT support and the minor map changes. They even open the ECU ecu and cut tracks and make wiring loom solder changes to achieve the goal. Whats next This is a work in progress. It was originally setup as a done project but it hasnt been completed and didnt work out. Someone else will need to take on the legacy here.

your efforts are certainly appreciated, good work looks good

have just realised the same "ap engineering custom" ecu could be used for rb25 and rb20 in fact its easier on rb20 as you dont need to worry about VCT support

if you are curious how an evo compares to an r33 evo 8 vs my car both are tuned more power everywhere, nobbad

yep i had mine turn off at like 1900 for a bit of fun and the car was sluggish and drove like a bucket of poo thats not to say it would do the same withit complelely off