Notice: We request that you don't just set up a new account at this time if you are a previous user.
If you used to be one of our moderators, please feel free to reach out to Chris via the facebook Outerlimits4x4 group and he will get you set back up with access should he need you.
Recovery:If you cannot access your old email address and don't remember your password, please click here to log a change of email address so you can do a password reset.

tb42 carby to tb42 efi info

Tech Talk for Nissan owners.

Moderators: toaddog, V8Patrol

Post Reply
Posts: 325
Joined: Sun May 08, 2005 4:55 pm
Location: melbourne

tb42 carby to tb42 efi info

Post by mudmav »

Hey Guys i cant seem to get a complete tb42 efi so i now am looking at converting my current tb42 to efi what is involved and what parts to i need to buy any help would be great

andrew
andrewholmes
Posts: 19062
Joined: Sat Oct 25, 2003 11:39 pm
Location: In a horse near you

Post by chimpboy »

This is not legal advice.
Posts: 325
Joined: Sun May 08, 2005 4:55 pm
Location: melbourne

Post by mudmav »

its funny you said that as i was just looking at it before posting this topic. Allready decided that this is not an option as i wanna keep it all factory and all nissan apart from maybe a wolf computer later down the track but thats a long way off. So thanks for the feedback but ill give that one a miss
andrewholmes
Posts: 325
Joined: Sun May 08, 2005 4:55 pm
Location: melbourne

Post by mudmav »

cmon guys im sure someone has done this or has some idea of whats involved
andrewholmes
Posts: 897
Joined: Tue Aug 02, 2005 2:31 am
Location: Central Coast

Post by MyGQ »

well if you want to go stock you need the following

first scrap the Carby and Inlet Manafold.

Next you need to get the EFI Manifold, Injectors, Loom, Computer, Fuel pump, Dizzy, and exhaust sensor as well the the inlet sensors, Throttle position sensor.

you will need the new dizzy as the EFI one doesn't have any mechanical or vaccum advances, the ECU controls the spark timing as well as the injection system.
AA's for Quitters
Posts: 28
Joined: Fri Aug 27, 2004 11:29 am
Location: Sydney

EFI conversion

Post by Nigel »

Hi Mudmav and the forum

I converted my 89GQ from carby to efi.
I used the standard efi manidold, injectors and throttle assembly.
I used a megasquirt cpu controlling both fuel and ingition.I am running a coil pack for the ingition with it all controlled by are vr sensor triging off a 36/35 tooth wheel mounted on the front pully.
The standard dissy just plugs the hole in the engine block.
I found a worthwhile increase in economy and performange.
Fitting the manifold and computer etc was easy it is other fiddlythings that take up the time and money.
Running a after market computer allows you to other modifications latter on eg fitting a turbocharger etc.

My two cents worth

Regards
User avatar
RN
A speed camera would have prevented that!
Posts: 15822
Joined: Sat Feb 05, 2005 3:46 pm
Location: Check your six.

Post by RN »

I like what Nigel has done to his rig, in fact if I had the dosh I would like to go down that path.

His mods would easily allow the Sequential Injected Gas system to be investigated as it needs a computer to piggyback off and turbocharging a SIG engine would be excellent.


If I had the dosh... :cry:

RN
Posts: 325
Joined: Sun May 08, 2005 4:55 pm
Location: melbourne

Post by mudmav »

nigel what sort id dollars did this cost and who did the work for you
andrewholmes
Posts: 30
Joined: Wed Sep 24, 2003 9:38 am

Post by gq4200 »

Hey Nigel, that sounds like an awesome setup.

I Would love to see some pics.

Are you using an EF timing disk and coil pack also?

I want to do this even just for the spark as my 88 is straight gas anyway/ with the EFI intake already.

Setup info for the megasquirt would be great to see also. What version ms do you use?
Posts: 241
Joined: Fri Jul 11, 2008 8:19 am
Location: Newcastle

Post by nellyb1 »

i'm looking at doing this install as well.

After reading the Megasquirt Forums and outers ones about megasquirt. Everybody seems to be really happy with the results.

I'm not a huge fan of carby engines. And mine at the moment is just reinforcing that decision. So i think a efi carby would be the way to go, as at least its a easier to make changes and modify.

The list of stuff i'm needing is.
Megasquirt 1.
1 offers the same basic functions as two now, 2 jsut has a better processor. so unless your thinking of going hardcore and running two turbos and a superchager and nos.

the sensors needed are a vr commonwhore exhaust gas sensor, map sensor and two coolant temperture sensor (one of which you cut the protective metal covering off and use as an intake air temperture sensor.

and a EA falcon throttle body injection.
Seems to be the easiest one that people have modified. Elongate a few holes and it should slip on.
this should have the two injectors, and a throttle position senors on it as well.

Now i havent started or done this yet, this is only what i've read.

But it seems that if you can get on the forums and get into one of the group buys, you can pick up a complete MS system for around the $300 mark. Assemble it yourself and your set.

if anybody want to correct me, please dont hold back. As i siad, this is only my understanding of it so far.
Post Reply

Who is online

Users browsing this forum: No registered users and 0 guests