[Spookie]

Hey all
Can you turn a carby motor into a feul injectwd motor and is there a kit to do so on my 1.3 sierra

Cheers ben

[tanshi]

it can be done, but there isnt really a "kit" for doing it.
its also not worth the time and effort really. plenty of good motors out there already with efi.

[want33s]

Bolt on Throttle Body Injection (TBI) is available for 1.3 and 1.6 8V but IMHO isn't worth the effort.
If you want EFI go straight to a G16B multi point injected engine.

[Spookie]

Also what are peoples opinios on webber carbys?

[JrZook]

Spookie wrote:

Also what are peoples opinios on webber carbys?

What do you primarily use the vehicle for? Extreme angles and the webber will not be a wise choice, TBI would be better. Otherwise it is a nice simple carb that significantly improves the performance of the 1.3.

[Spookie]

I maimly use the car for 4x4ing and weekend driver not an every day driver.

[droverdave]

Has any one actually experienced the 1.3L throttle body injection in a sierra though? I was just looking into it today.

If it is indeed a bolt on manifold and injectors, distrbributer (if its different), water and air temp sensors etc etc.

Then just need to put an EFI fuel system in.

Surely this must be a decent improvement over the carby?

If only for cold starts, and general driveability, and reliable fuel consumption.

Yes i know that the g16b is a bolt in conversion bla bla, but in my case my g13a is running like a dream after i just rebuilt it, and im quite happy with it other than the annoyances that 30yr old carburettas bring.

[tanshi]

TBI systems are hard to find and generally a waste of time.
if the carby is working stick with it. if not. G13bb or G16b
or even J20 if your feeling adventurous.

its just not worth the hassle for TBI

[droverdave]

It sounds like it all bolts up to the RWD g13a though, where is the hassle?

(wiring and fuel pumps not a problem ive done a few efi conversions)

There is some good info in here, as well as in the links.

http://www.pirate4x4.com/forum/suzuki/1 ... -swap.html

I might go wreckers hunting on the weekend.

[tanshi]

the hassle is:
finding one and paying out the cash for it
doing the wiring and setting up of fuel pumps etc.
still ending up with a shitty 47kw motor

if it was worth while more people would do it.

[want33s]

droverdave wrote:

It sounds like it all bolts up to the RWD g13a though, It does bolt up. where is the hassel? The hassle is... It is a lot of work for virtually no gains.

(wiring and fuel pumps not a problem ive done a few efi conversions)

There is some good info in here, as well as in the links.

http://www.pirate4x4.com/forum/suzuki/1 ... -swap.html

I might go wreckers hunting on the weekend. Can't say I've ever seen an import Escudo/Vitara 8V TBI in any wreckers.

For all the effort involved you might just as well fit a G16B and get better economy as well as lots more power.
I had a carby 1.3 then changed to TBI and hated it then upgraded to G16B MPFI and loved it.

[droverdave]

I Was under the (potentially misguided) impression that some of the suzuki swift and/or holden barinas of the early 90s was where you got this Throttle body injection.

If that is incorrect, then my whole plan is flawed....

[fordem]

^^^
Depends on the market they were built for - US Swifts from the early 90's were TBI - as far as I know the rest of the world had carbs.

[303zuke]

droverdave wrote:

I might go wreckers hunting on the weekend.

You might have more luck on the US E-bay site. US Samurais had TBI from about '93 or '94. They did change the dizzy at the same time, but it is not part of the efi. The Samurai system is fuel only, not ignition. This would be the closest system to "Bolt-on" for a Sierra, but there were also fuel-only TBI systems on Australian market 1.6lt 16v Swifts (4dr sedan only), but the calibration might be a bit rich for a 1.3.

[Zook_Fan]

When I get around to actually doing the conversion I'll be running a mazda 121 rb setup on a 1.3. Sure the effort level is high compared to a conversion with all the gear but it is cheap. I went and got the throttle body, ecu, wiring loom and distributor with as many sensors as I could find off the mazda for $100. I can make up the adaptor out of some 10mm aluminium and if I can manage to find a wiring pin out for the ecu the wiring won't be a drama either. The distributor will be a little bit of work, rhett has done this conversion before and he is running a hybrid between the sierra and mazda distributor. Haven't really looked at it too much yet.

Note: I don't care that I'll end up with a 47kw engine as long as it will run properly. The last carby issue I had resulted in the car being written off. Also a major bonus for me is that I can go back down to a standard class car with a 1.3 so it has more benefits compared to most.

[Rhinoman]

303zuke wrote:

droverdave wrote:

I might go wreckers hunting on the weekend.

They did change the dizzy at the same time, but it is not part of the efi. The Samurai system is fuel only, not ignition. This would be the closest system to "Bolt-on" for a Sierra, but there were also fuel-only TBI systems on Australian market 1.6lt 16v Swifts (4dr sedan only), but the calibration might be a bit rich for a 1.3.

The Samurai system is fuel and ignition, I don't know about the Aus 1.6 Swift but only the very early Vitara and 1.3 Swift models (89/90) US and EU models were fuel only. The dizzy on the EFI models is a Hall-Effect so you need to change or modify the dizzy, a 1.6 EFI dizzy would work.

[303zuke]

http://www.ebay.com.au/itm/suzuki-sierr ... 232af68229

[droverdave]

303zuke wrote:

http://www.ebay.com.au/itm/suzuki-sierra-G13-motor-with-TBI-EFI-/151044653609?pt=AU_Car_Parts_Accessories&hash=item232af68229

That is very cool.

Well this is sounding more viable now.

If the 1.6L TBI from the 16V swifts is easier to find, can be made to fit on the sierra manifold, you might be able to put a slightly smaller injector in to compensate for the fact that it is 1.3 not 1.6.

Else just run it on a megasquirt or simliar.

[JrZook]

droverdave wrote:

Else just run it on a megasquirt or simliar.

Make is sound sooo easy

[droverdave]

JrZook wrote:

droverdave wrote:

Else just run it on a megasquirt or simliar.

Make is sound sooo easy

haha of course!

We did something simliar on my mates rx7, left the factory ignition system (distributer with vac advance), used the distributer as a trigger for the MS, removed carby and installed an EFI inlet manifold (13b inlet on a 12a with an adaptor plate) and ran the MS as basically a 'fuel only' computer.

Really was quite succesfull. Ended up controlling the ignition as well after a while, then added a turbo. Then like all good rotaries, blew it up.

JR zook, I see you have been playing with MS, have you done what im dreaming about?