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General diesel cinq thoughts

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General diesel cinq thoughts

seems everyone is thinking of something different here, im going on about running a diesel crank and rods in a 1.4 14v (cant do the 1.2 as it hasn't got a ladder brace) along with custom pistons so can have some control on the CC CR and fitting it together and this would be run on petrol

with custom pistons you could have the engine over sized to bring the volume up ARP stuff would be needed IMO

i see where craig is coming from with the hydraulic tappets, its made a bit harder with the valves being in a separate unit to where the buckets and shims would be, either really long valve stems that could bend or deep buckets that are weighty

but alas without any measurements on either crank to go by i wouldn't want to start this and have it backfire, yet again if it did work then it would be a mental thing to have in a cinq

Ash
 
whitz said:
seems everyone is thinking of something different here, im going on about running a diesel crank and rods in a 1.4 14v (cant do the 1.2 as it hasn't got a ladder brace) along with custom pistons so can have some control on the CC CR and fitting it together and this would be run on petrol

with custom pistons you could have the engine over sized to bring the volume up ARP stuff would be needed IMO

i see where craig is coming from with the hydraulic tappets, its made a bit harder with the valves being in a separate unit to where the buckets and shims would be, either really long valve stems that could bend or deep buckets that are weighty

but alas without any measurements on either crank to go by i wouldn't want to start this and have it backfire, yet again if it did work then it would be a mental thing to have in a cinq

Ash
Click to expand...

Why not fit the T-jet engine ?

Ming
 
I had this idea a while ago, got put off by the extra weight but I suppose for long motorway hauls it'd be an epic mini-cruiser and understeeriness wouldn't be an issue on roads that're straight as an arrow.
As Dan says, I reckon probably the easiest way would be to butcher an entire Panda/500/GP for the engine, ecu, fuel lines etc and connect it up exactly as if they were in the original car (guessing a Panda would probably be the better starting place to do that). What to do about a fuel tank though? I guess it would have to just be an aftermarket job in the boot?
 
Eklipze3k said:
I had this idea a while ago, got put off by the extra weight but I suppose for long motorway hauls it'd be an epic mini-cruiser and understeeriness wouldn't be an issue on roads that're straight as an arrow.
As Dan says, I reckon probably the easiest way would be to butcher an entire Panda/500/GP for the engine, ecu, fuel lines etc and connect it up exactly as if they were in the original car (guessing a Panda would probably be the better starting place to do that). What to do about a fuel tank though? I guess it would have to just be an aftermarket job in the boot?
Click to expand...

a new panda would be a good starting point but when its wet and there's a corner never put your food down in the lower gears as one wheel can and does sometimes spin but i am on steelies

over the last 1000 miles ive averaged 63.2 MPG and i do alot of short runs

Ash
 
Eklipze3k said:
I had this idea a while ago, got put off by the extra weight but I suppose for long motorway hauls it'd be an epic mini-cruiser and understeeriness wouldn't be an issue on roads that're straight as an arrow.
As Dan says, I reckon probably the easiest way would be to butcher an entire Panda/500/GP for the engine, ecu, fuel lines etc and connect it up exactly as if they were in the original car (guessing a Panda would probably be the better starting place to do that). What to do about a fuel tank though? I guess it would have to just be an aftermarket job in the boot?
Click to expand...

is the 1.3 multijet really that heavy compare to the likes of the 16v egines?

Ming
 
i believe the 1.3 Mjet engine to be light for a diesel

the 100hp going off kurb weights is 40KG heavier then the 1.3M-Jet most people think of old diesels ahh its all cast iron big and heavy

but on the M-jet the crank-cast is cast iron, cylinder head aluminium along with an aluminium base

source here
weights from Wiki

Ash
 
some pictures of it in a panda engine bay

DSC00928.jpg

DSC00936.jpg

DSC00935.jpg


aww isnt that a cute tiny turbo
DSC00931.jpg


the side of the bold on the selector unit is just next to the chassis rail
DSC00933.jpg


3 fingers of clearance
DSC00934.jpg


thats one hefty mount to take the torque
DSC00930.jpg

DSC00929.jpg


doesnt that gearbox look familiar;)
DSC00932.jpg


Ash
 
diesel box's have longer ratios. so 5k is the equivalant of 7k on a petrol. hence the short rev range not really mattering and the torque to pull it through it.

on a turbo it might be helpfull but you would loos alot of torque to it.... then again would dull down the wheel spin.
 
I know of one person in Clubcento who was planning on fitting the 1300 MJ to his Cinq. It got shelved. IIRC it was to do with the management side of things, but I can't remember exactly what.
 
are there any aftermarket ecu's that can run diesels?

i know probably a stupid question but never looked into it. if there are it wouldnt be any harder than doing a petrol loom from scratch with a megasquirt.
 
diesel injectors run on hundreds of volts iirc. i dont think there are any real aftermarket ecus for diesels and would be stupidly expensive because they are very complicated and need to be stupidly accurate

also I doute anyone would be willing to take the risk of making the ecu.

on a petrol if the ecu went mental not much will happen (as YOU control the throttle)
desels dont have a throttle the engines speed is controlled by the fuel and fuel timing (more fuel = higher rpm) so if the ecu or your wiring went a little wrong you would end up with an engine going full speed.
 
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