1966 Mk1 cortina GT Exhaust collectors

Cracking looking car, glad to see there's another GT in the area (my dad's got one in the shed doing nothing:( )

thanks guys, I see you're in Nottingham too is your Dad's GT a 2 door or a 4 door?

sorry about the photos i'll re upload them later

thanks Rob, I've been looking at your herald as I had a 12/50 before but it was beyond my abilities

I forgot to mention the engine:

I stupidly sold the original 1500 as I decided I wanted a zetec so I bought an ST170 engine and loom, I had it sat on my engine stand with an angle grinder in one hand and the subframe on the bench. I had a thought about how it would look in the car and I thought that it would be a bit disappointing to look at so I had a re-think.

I wanted an engine that would be useable everyday that didn't leak oil and would fire on the button and looks as though it should be in there,

Thats when I decided to inject a precrossflow as it ticks all the boxes - So for my uni dissertation I chose to develop my engine using a piece of software thats used for engine design and development called ricardo wave.

The test went like this:

built a standard version of the engine

Exhaust manifold lengths and diameters (6 differnt versions in total) picking the one that produced the best power and torque curves rather than going for big bhp numbers,

Cams (again 6 in total using a mix of current and 60's spec grinds),

Larger valves were added to the head along with ports to suit which had a lower drag coefficient to suit (calculated not specific),

Twin Webbers (the fueling was still set as a carburettor and the manifold was the same as an off the shelf number)

ITB's (based on the webber model but fueling changed to injectors and fueling suited to equations I made),

A single throttle body and plenum using equations I found (this made more torque than the ITB's with a better curve!)

Supercharged - this was using an Eaton M45 as it has the same output of air as a shorrock C75B which was fitted to some precrossflows using a draw through carb

Supercharged 2 using the single throttle body model and an intercooler.

SO the plan is to inject the standard engine with a cam and a few other bits and pieces and have a crack at making my own exhaust manifold/system

then when it works and this are going well I would like to try the supercharger route which will mean swapping out my 1500 and going for a later 1600 crossflow and modifying to suit the 1500 head and give it a go - I would use a 1500 but the 4 bolt flywheel maybe a weak link and the 1600's have 6 bolts and better oil seals

After all that have some pics





(I sold the carbs not long after this)









the block came from a local college that was used to for teaching purposes it was on Ebay with low miles and had been dry stored for years but was looking a bit rough! The block was overbored to 1590cc which is a fair whack but the other block had oversized bearings on the cam which were obselete which is hard to fix hence why I ended up with 2 engines and 3 heads! and 12 pistons!

this is an example of the ricardo model it shows the inlet maifold and injectors on the righ hand side, the intercooler is in the centre and the supercharger is on the left with the cloud represting the air thats about to enter the engine

Just a quick update from yesterday - I finished the seam on the inner wing and ground it down and its gone quite well which is good I also got some atsy grinding shots

How did I miss this?? Sweet to see another mk1 on here, they are not that common really. Good job on the welding, did you have someone teach you how to weld when you started? I'm quite curious because few people can weld here, and rusty projects really put people off so being able to weld means moar projects for less money
I'll be following the updates! Btw if you're on the Mk1 Cortina OC the forum is very nice and helpful even though you don't look like you need much help

Ford sold a good number of Cortinas in France but then all rusted away. Mine seems to have had its underside protected with Old Engine Oil® from new so it soldiered on til today (more or less).
I see people on here like some kinds of MIG welders better than others, does it make a big difference when you start? I mean, an excellent tool will be excellent in the hands of a skilled man but a noob like me will not necessarily see any difference, apart from the price.

Hi there

Good to see another Mk1 GT on here. Good work on the welding - I'm in the middle of a similar marathon on mine!

BTW where did you get the eccentric top mounts from?

cheers

Richard