Hi there!

Has anyone ever welded an oil return pipe into the sump of an CVH?

I'm planning to equip my modded XR3i Efi with a Turbo running very low boost pressure (4 or 5 PSI) and I don't want to remove the block.

 

you just drill & tap into block near oil filter as i remember!

 

Make sure it's as high as possible on the sump - so well above oil level. The pipe return pipe should be as bend free as possible, so it drains away easily.

 

tap the front of the block where u'd find it on rst

 

That's what I'd like to avoid. Don't want to remove the engine.

My plan is to just put a oil lubricated/cooled turbo from a S1 on and run some very low boost. Maybe even without an intercooler, as simple as possible. And therefore the sump would be the easiest option.

 

spend time doin the properly now and less repairing i later

 

yep

 

thats wot ive done at the mo 6psi and its going ok lol

 

i may hav a pic of how i done it on my sump let me check

 

there ya go maty

 

i just grinded out the nipple from a old rocker cover i had lying around and welded it in from both sides

 

Turbo Technics used the same method for their oil return on the XR3i Turbo conversion

Heres some pics of my TT sump

 

can be done

i braised a 1/2" hydaulic fitting into the sump - keep it as high as possible

 

Yeah, that's exactly what I'd like to do. Now I know that it's possible. Cheers for all the pictures, guys!

 

is that low comp pistons fitted from a rst lump or ?

 

Looks like std. CVH pistons. Non-turbo

 

Yep standard 16i bottom end, now replaced by newly rebuilt all singing all dancing S2 bottom end

 

sweeeeeeeet

 

Did Turbo Technics lower the compression ratio at all? 16i had something round 10:1 if I remember correctly, quite high actually.

 

They used the standard compression, the only mods they did was bolt a turbo on and fit a special advance/retard distributor, 5psi max

 

This is exactly what I want to do to my EFi Mk3 Escort. The mechanics seem quite simple but I don't know what to do about the management side of it.

Would FRST management work in a low-boost system with the actuator adjusted accordingly? Or would you have to go for an after market ECU?

 

I guess FRST management would work. However I'd like to know if you can run low boost even with the normal EFI management which is actually designed for N/A engines.

 

Thanks for the information! Tis making me more and more confident that it'll work in the end.

EDIT: One more thing. Does anyone know some hp figures for such a TT converted 1600i?

 

Is it just me, or is that actually pointing downwards slightly

 

I thought i already answered that question on your thread....?

https://passionford.com/forum/viewto...light=#3448314

 

was slightley tilted but i got a ful rst engine and running gear to go in so all gud

 

Just one more question: Will the N/A EFI management be able to handle a low boost pressure of lets say 5 psi? Or will I need a FRST loom?

 

Thats very very bad mate

May not seem it, but it is

 

Not so much the wiring, but you need to change management. you could plug an OFAC ECU and MAP sensor straight in, or OFAB with a couple of very minor and easy to do wiring changes.

 

dnt wrry that engines not gnna be turbo'd again

 

Yeah I know. But do you think that the std N/A EFI won't work for low boost?

 

No.

Well, yes, but expect it to run like poo, and make sure you have a good level of RAC/AA cover...................

 

try 14psi for a 5 mins run round the block to dodgy but was fun LOOOL luckeley i didnt blow a piston

 

I've got my own towing truck, so that's not a problem!

OK, looking for an ECU, MAP-Sensor and Charge temperature sensor off an FRST now.

 

Thats better

The ECU & MAP will be easy, the ACT is available from ford. Your guna be a bit stuck when you come to find a reducer for the ACT though

 

Yep you did. But if you check the dates I asked the question here before starting my own thread...

Thanks for all your help BTW

 

Smart arse