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Rusty old 1968 Renault R8
- Thread starter Adey.
- Start date
Adey.
ClioSport Club Member
Yes very much so and was hunting for one for ages.
I actually have a ropey Renault R6 as well as the 8, its an R4 underneath but slightly posher (mine isnt)
Its been in the naughty corner for a few months, should probably check its still there
I actually have a ropey Renault R6 as well as the 8, its an R4 underneath but slightly posher (mine isnt)
Its been in the naughty corner for a few months, should probably check its still there
Adey.
ClioSport Club Member
i will try and post some bits up soonPlease get a thread up for this
Adey.
ClioSport Club Member
Adey.
ClioSport Club Member
Compression test is fine, roughly 9.5 bar on all and more importantly even across them. I reset base timing and that seems fine. Spark is there too, can see it arching when I pull the leads out, doesn’t mean its happening at the right time though I guess. Dubious it being fuel as 1-2 and 3-4 which are on a shared runners and one side of the dcoe so you would expect them pairs to have the issue?
Spoke with a mate/tuner last night and I’m going to try flipping the timing manually in the ecu by 180degrees, then move the ht leads and see if the problem moves to cylinders 2-3. If it does it may be a failing ignition driver on one side (paired 1-4 2-3). If it doesn’t it then leans back to being some weird fuel/carb issue
Spoke with a mate/tuner last night and I’m going to try flipping the timing manually in the ecu by 180degrees, then move the ht leads and see if the problem moves to cylinders 2-3. If it does it may be a failing ignition driver on one side (paired 1-4 2-3). If it doesn’t it then leans back to being some weird fuel/carb issue
2018 Ford F-250 Su
love seeing old french iron saved. bet the rear swing axle bushings were completely rotted after 35 years, but that patina is killer.
Adey.
ClioSport Club Member
The ethos of this project has always been along the budget DIY lines but with improvements along the way. The first wave was for a bigger engine that ended up with me going for a mappable ignition to ditch the old points and dizzy and I replaced the fuel pump for a modern unit at the same time, this was after a few issues that left me stranded. This came with benefits, raising the original hp from 42bhp to 65bhp. After some fettling if the carb and mapping it was raised to 75bhp.
This only satisfied me for so long, a custom cam was thrown in, vernier pulley and stronger valves springs along with a chunk of material removed from the head to bump compression, this with dialled in for later delivery saw over 100bhp (along with a written off gearbox, my own fault for running it low on oil)
Ive always hankered for that throaty weber sound track so made efforts to get that on and sorted. It runs well but.... it seemed like a backwards step. I have it on there, and bar its funny idle fuelling issue which im assured can be sorted it runs ok and certainly gives the right noises. That said it needs a rebuild and jetting, followed by fine tuning on the dyno with more jetting to suit. This was looking to run me another £500+
After a long conversation whilst trouble shooting with Guy Higgs from Guy Higgs Tuning, he mentioned how if it was EFI, we would be able to fuel correctly at every point in the rpm with no trade offs like you would get with an old school carb. So.... I went hunting for some parts. I've ended up with an ECU master EMU to go on and a weber replacement ITB. I've ordered up a few connectors, loom and some injectors and think I can switch it all over to full EFI with very little issue (he says/touch wood) This will give me full control of the engine along with all the benefits of modern sensors and inputs! the ECU is majorly overkill for my needs but I think it'll be a fun winter project. So far I'm in for about £300 so winning vs the Carb rebuild and setup so far.
So even more modern tech for the ropey old Renault, the ECU even has digital dash support which would be awesome if I can find a budget item. The project has stalled a little whilst I've been going through with this plan but I'm looking forward to the outcome
This only satisfied me for so long, a custom cam was thrown in, vernier pulley and stronger valves springs along with a chunk of material removed from the head to bump compression, this with dialled in for later delivery saw over 100bhp (along with a written off gearbox, my own fault for running it low on oil)
Ive always hankered for that throaty weber sound track so made efforts to get that on and sorted. It runs well but.... it seemed like a backwards step. I have it on there, and bar its funny idle fuelling issue which im assured can be sorted it runs ok and certainly gives the right noises. That said it needs a rebuild and jetting, followed by fine tuning on the dyno with more jetting to suit. This was looking to run me another £500+
After a long conversation whilst trouble shooting with Guy Higgs from Guy Higgs Tuning, he mentioned how if it was EFI, we would be able to fuel correctly at every point in the rpm with no trade offs like you would get with an old school carb. So.... I went hunting for some parts. I've ended up with an ECU master EMU to go on and a weber replacement ITB. I've ordered up a few connectors, loom and some injectors and think I can switch it all over to full EFI with very little issue (he says/touch wood) This will give me full control of the engine along with all the benefits of modern sensors and inputs! the ECU is majorly overkill for my needs but I think it'll be a fun winter project. So far I'm in for about £300 so winning vs the Carb rebuild and setup so far.
So even more modern tech for the ropey old Renault, the ECU even has digital dash support which would be awesome if I can find a budget item. The project has stalled a little whilst I've been going through with this plan but I'm looking forward to the outcome
Adey.
ClioSport Club Member
I made a start this morning and came up against my first issue..... id ordered the wrong ITB, the one I have is an IDF replacement. Order now placed for the DCOE version. Fingers crossed I can return it, if not it can go on ebay once I'm finished.
