CA18DET bottom end query...

[irish s12]

Yes the det 100% has oil squirters at the bottom of the cylinders.
I have rebuilt one.

[Noodle_Soup]

Thanks for your help guys.

Ben

[CNHSS1]

i had a number of ET blocks machined to take DET oil squirters, will dig out the pics




custom steel crank brace

[CNHSS1]

Det rods are thicker in section and use a larger diameter gudgeon pin too, so you cant use DET rods (or aftermarket versions) with ET pistons, has to be DET spec pistons too. Win, win really, better pistons and stroger rods.
crank and big end bearings are the same so will fit.

[Noodle_Soup]

Originally Posted by CNHSS1

Det rods are thicker in section and use a larger diameter gudgeon pin too, so you cant use DET rods (or aftermarket versions) with ET pistons, has to be DET spec pistons too. Win, win really, better pistons and stroger rods.
crank and big end bearings are the same so will fit.

Cheers for the info mate, i have wossner forged pistons and apex forged rods, all DET spec. DET crank too, but that was coz the ET one got a little damaged when trying to remove an uber stuck crank gear! ACL race bearings to boot, should hope fully be a reliable and powerful setup.

[CNHSS1]

good parts choice

the ET and DET cranks are different though. The 'nose' of the DET crank is bigger than the ET version so wont fit the oil pump.
The DET oil pump would have to be fitted along with the sump. Personally i think the DET sumps pants compared to the ET sump, it has loadsa louvres in the windage plate (to allow oil to drain back from head quicker i guess) but that does mean that on hard cornering/braking/acceleration the oil can move away from the pickup. Personally its why i think DETs have a reputation for 'chocolate' bigends, whereas the ET doesnt (and has same block and bearing design).The pickup is slightly different on the DET which means it has to come thru the plate at an angle, which means the plates not as tight a fit around the pickuup either.

also the bottom crank pulley for the timing belt wont fit, although if you ask 30PSI on here nicely, im sure he has a modified pulley for soem beer tokens

DET sump pan



ET sump pan



DET crank brace fouls ET sump, so ET sump needs a little 'percussive maintenance' with a ball pein hammer to clear the DET crank brace.

[Noodle_Soup]

Originally Posted by CNHSS1

good parts choice

the ET and DET cranks are different though. The 'nose' of the DET crank is bigger than the ET version so wont fit the oil pump.
The DET oil pump would have to be fitted along with the sump. Personally i think the DET sumps pants compared to the ET sump, it has loadsa louvres in the windage plate (to allow oil to drain back from head quicker i guess) but that does mean that on hard cornering/braking/acceleration the oil can move away from the pickup. Personally its why i think DETs have a reputation for 'chocolate' bigends, whereas the ET doesnt (and has same block and bearing design).The pickup is slightly different on the DET which means it has to come thru the plate at an angle, which means the plates not as tight a fit around the pickuup either.

also the bottom crank pulley for the timing belt wont fit, although if you ask 30PSI on here nicely, im sure he has a modified pulley for soem beer tokens



DET crank brace fouls ET sump, so ET sump needs a little 'percussive maintenance' with a ball pein hammer to clear the DET crank brace.

So if the nose is a big bigger, and i already have the crank and indeed the oil pump...(but as they say assumption is the mother of all fuck ups!) would it be possible to turn the nose down to suit the ET oil pump and indeed the crank gear?surely as you stated a little gentle persuasion with a cornish screwdriver the ET sump can be made to fit? as by your pics the windage plate looks weak in the DET!!was trying to retain as much of the ET engine as possible to keep the car loosely as intended. and the last thing i am wanting is to build this engine and have it fail due to DET death rattle!

ha, just when you think your getting near to completing your engine suddenly things start going backwards!!You wouldnt happen to have any DET squirters lying around would you? thinking thats the better way to go as i have had block bored to suit new pistons! and also dont wanna try and drill holes in new rods!

cheers for you help with this mate, saves me a lot of agro in the long run knowing all these things now!!

Ben