dont know if this will help, taken from another clio forum:
65 bhp -
No blue letters in the word DCI on the sidestrip.
No intercooler.
JB3 gearbox pretty much same as 1.6 16v
Engine code - K9K 704.
80 bhp -
Blue I in the word DCI on the sidestrip.
Large Intercooler.
Injectors 15% more efficient than 65's
JB5 gearbox pretty much same as 2.0 16v
Engine code - K9K 702.
100 bhp -
Blue CI in the word DCI on the sidestrip.
Small fat intercooler (17% more efficient than 80 ic).
Same injectors as 80
Fuel pump goes up to 1600 bar (65 & 80 1400 bar)
Gearstick, reverse is down and right as opposed to up and left with the lift.
Weak gearbox from a laguna.
Engine code - K9K 712.
pro's over a 1.2 16v:
much better fuel economy (60mpg is easy ive had 75mpg)
cheaper road tax £35 a year over (iirc £115 last time i had a 1.2 16v)
much better handling, my dci 65 imo handled closer to my 172 than it did to my old 1.2 16v due to thicker ARB's and a more sporty suspension setup.
more torque, most people assume a dci 65 is going to be slower than a 75bhp 1.2 16v due to the 10bhp difference but in reality the extra torque makes the dci65 much quicker around town as you have all your power from 2,000rpm (turbo spools just bellow 1500rpm) giving a thump of torque making it feel quicker than it actually is.
more refined to drive over a 1.2 16v
cons over a 1.2 16v:
only one i can think is think a dci65 is a group 4 insurance group over group 3 for the 1.2 16v but again dont quote me on that
other than that i cant think of any
I appreciate you've taken that knowledge from another clio site but there are several discrepancies with the above info
The 65 bhp also uses a K9K 700 as well as the 704
OVAL PLATE CB07
The 80 bhp ( depending on year ) also uses a JB3. There isnt a JB5 - The author was probably thinking of the JC5 unit ( JC5 125 in the DCi ) They also fit the JH3 and JR5 units in 2004 onwards clio's.
The block, cylinder head and delphi high pressure fuel pump on the 700 / 702 / 704 are exactly the same. Its the combination of the turbo ( 5435 970 0002 Borg warner K series ) the delphi injectors and the intercooler that gives the 702 its 15 bhp extra as supposed to the 704 which uses a 5435 970 0000 blower. You can easily mod the 700 / 704 to get the extra power.
OVAL PLATE CB08
The 100 bhp version uses a different block and head and different injection set up. Again the 712 uses the delphi high pressure injectors and fuel pump but has a stronger crank, stronger rods and pistons. The turbo is the Borg warner 5439 970 0030 unit. The inlets on the 712 head are bigger, different cam and ex manifold. It doesnt use a Laguna gearbox. The gearbox fitted to the 712 is the JR5 120.
OVAL PLATE CB2G
Watch out for injector faults - in all models fuel contamination can block the high pressure injectors. Most common fault is the high pressure pump breaking up from the inside and blocking the injectors. Will need the entire system flushing and new / recon injectors fitting + pump.
Turbo's are renowned for blowing - this in return sucks the oil from the sump, throws it into the inlet, gives the engine 5 lts of uncontrolable fuel, over revs and throws a rod through the side of the block.
Stay clear of high mileage cars - always buy a car with full history. Before you knock the engine off let it idle for 30 seconds and this allows the oil to circulate through the turbo bearings and cool them down by extracting the heat from them - this will prolong the life of the turbo by a good few years. Dont buy a "chipped" or a "modded" car - buy standard and then get the remap done proffesionally or just buy one of these....
http://www.dieseltuner.co.uk/renault.html
