i understand these came with injection for the b14 equivalent at some point? has anyone tried mating up the b14 with this system? or has this been tried and thrown away?

seeing as i can't read seems renault changed the engine to a 1390cc unit instead. does anyone know if the manifold fittings remained the same, i.e could its injection manifold and associated system be plumbed into a b14?

I have tried fitting a Renault 5 injection system on a Volvo 340 B14. The intake/exhaust manifold from the Renault does not fit the Volvo cylinder head, and the TBI has a different bolt pattern than the Volvo Weber carb. It is however possible to manufacture an adaptor plate to mount the TBI on the Volvo manifold.
Next step is to mount the temperature sensors, the Renault comes with 2 open air temperature sensors; one for IAT and one for engine temperature.
When everything is mounted on the engine, just run the wires to a suitable place, change the ignition coil and backplate to the Renault part and change the connector on the flywheel VR sensor and you're good to go!
The fuel cutoff solenoid wire to the carb is perfect to provide a switched power supply to the injection system; for permanent power just run a cable from the battery via a fuse.
I mounted the Renault 5 fuel pump under the bonnet, sucking fuel through the original fuel lines. It sounded very strained, but it worked well... Now I run an intank fuelpump from a Ford Focus; it doesn't sound as strained (I can barely hear it at all), but it sucks air when making hard right turns with low fuel levels...

When I fitted my car with the R5 injection system I managed to hide everything except the TBI under the spare wheel under the bonnet; very neat indeed! It was a fairly easy job, and it did make the car run much better! However the car did lose a bit of power; possibly because of the narrower bore of the TBI, possibly because the R5 system runs leaner than the carb. I am still investigating!

Good sides:
* Easy job
* Great drivability
* Better fuel economy
* Adjustable fuel pressure regulator

Bad sides:
* Powerloss
* Very few options for future modifications
* Not much documentation about the R5 Renix/Bendix TBI system available
* Injector to small to run E85

I have now continued on to run MS in my car; still using the R5 TBI though. If you want some pictures, take a look here and here. Under the first link is also the complete story of my project, in swedish though...
I have a good document on the R5, including injection system, in english, on my website aswell: http://kurre86.dyndns.org/bilar/super5.pdf

interesting, i originally thought about this for the fuel ecomony reasons and for an easier swap than a bodged system of different parts held together by MS.

however according to some sources the 1.7 engine from the 440 with multipoint injection makes about 100 hp and under the assumption this would fit (can't see a reason why not) it might be more economical given the b14 seems to struggle a little with the weight of the car. the 440 system may even be a little more modern although various websites differ.

it seems the 1.7 was phased out at some stage in favour of 1.6s and 1.8s but someone in the know is better able to substantiate this. a 1.7 mpi ~100hp 340 would be quite a reasonable cruiser i'd have thought. might be a better injection conversion/swap although my previous 1.7 was a 25mpg travesty.....

The 440 1.7 is exactly the same engine, with the same cam, and the same carb, the only difference is the jetting from memory, I looked it up a while back!

There are also several jetting patterens for the 440, depending on age

i suspected that a miraculous 20hp gain wasn't a reality. is the 1.7 injection (87-89 from the VOC website) coded b18e a different 1.7 (if that makes sense) as its listed a 1.7 capacity?.

All the B18's are 1721, apart from the B18U (I think, late multipoint) that are bored (to just shy of 1.. The 2.0's are bored and stroked from memory.

The jetting could well give a bit more tbh, the venturi sizes I think are changed too, I looked it up about a month ago, and have forgotten it all now Certainly could guve you a bit more power, but would be dubious of 20bhp!

no, later b18 are a bit more cc's than 1721.

i believe something like 1748 cc

Chris_C wrote:All the B18's are 1721, apart from the B18U (I think, late multipoint) that are bored (to just shy of 1.. The 2.0's are bored and stroked from memory.

antiekeradio wrote:no, later b18 are a bit more cc's than 1721.

i believe something like 1748 cc

Yup, the B18U I should have written "later" instead of "late".