Team, My car is an auto that is undergoing a manual conversion :hyper: at the moment.

 

My question is will my car always need an auto ECU (with the big 23 on it) or can I at the same time switch to a manual ECU (with the big 22 on it).

 

I am uprgrading to 555cc injectors so I don't have the same melt down as I did on std injectors.

 

I have a number of ECU's so need to know which one to 're-chip to 555cc or even if it does not matter.

 

Thanks for your help

It can go to a manual ECU as far as im aware but there is no reason to change it i dont think.

 

Mines about to have something similar done and the ECU is staying put lol

IIRC if you cant put a Manual ECU on an Auto car, but can put a Auto ECU on a Manual Car. I thing the manual ECU cuts the fuel between gearchanges and the Auto one doesnt.

IIRC if you cant put a Manual ECU on an Auto car, but can put a Auto ECU on a Manual Car. I thing the manual ECU cuts the fuel between gearchanges and the Auto one doesnt.

 

Yes you can, as long as it no longer has the auto box !

 

Either a manual or an auto ECU will work in this instance. I would normally say stick with an auto as it will match the turbos better, but as you're changing injectors etc then you will need it remapped anyway.

thanks andy,

 

The reason I asked is I have a spare manual 'Mines' ECU which I was going to get upgraded on their 'upgrade-for-life' policy with the VXROM but did not want to get that done if would not work in my auto loom or something.

Yeah I am going to 555cc injectors and uprating to 360degree bearing turbo's. New engine in in v. good nick but otherwise stock so not going for big power. maybe just running about 1.2bar.

All note I was running 1bar on std injectors with a mines ECU and my real-time diagnostics just showed the injectors running at 99.9% capacity all the time. On the super hot day that was the Z parade at Silverstone my new Zedworld +70hp chip + track session + the heat fried the engine...........

Lesson learned std injectors soon max out.

 

Anyway my Z will be back

 

 

 

 

 

Anyway thanks should soon be back on the road.............

sorry team that should have read at silverstone when she blew i was running a std ECU with Zedworld chip :slap: .

Note I ran with a mines ECU for 2.5 years no problem and she went great. D'oh! Even now I cannot understand why I messed with it and tried the +70hp Zedworld chip........... :cry:

Mines ECU is just a std ECU with a Mines chip.

 

Zedworld use JWT maps I believe. Pretty rich and safe. Would not be the reason for your problems.

 

I would personally go with a John Dixon or AndyP chip over anything else, short of a fully standalone ECU and full rolling road mapping session.

I have to beg to differ re: zedworld chips and john dixon chips.

 

John Dixon sent me three chips over the course of some months about a year ago and my car would never run right with them. I tried it in a mates and same with his. Hesitation on kickdown in the midrange due to overfueling then leaning out at the top end.

 

The zedworld+70hp chip was worse it went into safety boost on the way home from having it fitted and then the next day at silverstone my car went bang.

 

Prior to that I had ran for 2 years on the mines ECU (yes all it is is their chip in a 're-conditioned' ECU). I ran that on optimax with no issues and great performance so I know which I think is the quality item.

 

My fear is that any chip I get for my 555cc set-up is developed enough to not have things like safety maps deleted etc.

That is why my car blew up. The normal nissan safety maps where shall we say 'by-passed' in the +70hp chip

Go for the Andy P 555 set up chip then dude... Still retains the safety map.... ;)

Go for the Andy P 555 set up chip then dude... Still retains the safety map.... ;)

 

Who said it does ? ;)

 

Actually, some do, some don't ...

I have to beg to differ re: zedworld chips and john dixon chips.

 

John Dixon sent me three chips over the course of some months about a year ago and my car would never run right with them. I tried it in a mates and same with his. Hesitation on kickdown in the midrange due to overfueling then leaning out at the top end.

 

The zedworld+70hp chip was worse it went into safety boost on the way home from having it fitted and then the next day at silverstone my car went bang.

 

Prior to that I had ran for 2 years on the mines ECU (yes all it is is their chip in a 're-conditioned' ECU). I ran that on optimax with no issues and great performance so I know which I think is the quality item.

 

My fear is that any chip I get for my 555cc set-up is developed enough to not have things like safety maps deleted etc.

That is why my car blew up. The normal nissan safety maps where shall we say 'by-passed' in the +70hp chip

 

Yep, the JWT copy(that zedworld uses) chip does away with the safety maps, one of the reasons Im not a fan of it, its also far from the best performer. JD's chips retain the safety maps and are mapped for a broad power band. I dont have any experience with Andyp's chips, but they have good reviews.

 

I've fitted well over a dozen JD chips in Different zed's, and there must be another 50 or so members here with the same, I've never had issues with mid range over or under fueling. Did you discuss with JD ?

 

Your best option IMO is to book a session with John to map it properly with his Wideband A/F monitor or on the rollers with him at Thor.

Yes I did discuss with John and perhaps I got a faulty chip.

 

Early in the conversation the assumption was that my car must have issues but upon trying it in other Z's they all behaved the same. John then said that he had found out he had a faulty EPROM burner. This all took place over a long period as I was in and out of the country due to my job. When we get up and running with the 555cc injectors I want to take it to get a proper set-up so will consider all of the known chips and test thoroughly then decide.

 

Experience has taught me this is a very expensive thing to get wrong.