Alfa Giulia 1967 Step Nose Resto Mod Build

[Dexter67]

Mound Dawg said:

That's pretty much what we do with the Alfaholics GTA-Rs.

Great minds think alike

[Dexter67]

Hope everyone is enjoying the cold start to 24.......not much to report but engine choice has been made and purchased were going 2L Twin Cam Alfa 75.
Its going to get a full rebuild, spec to be decided but another tick in the box

[Dexter67]

Could'nt leave the engine alone as its sitting on an engine stand seems rude not to take it apart, still formulating a plan for its rebuild but here are some pics from the strip down

[Benspickup]

I'm really enjoying this thread having just bought a 2000gtv.

I'm very tempted to put a twin spark engine in also.

Are there any good build threads anyone would recomend showing the details and what's involved? Also what's the going rate for a twinspark engine these days if you can find one?

Keep up the good work!

[arguti]

Benspickup said:

I'm really enjoying this thread having just bought a 2000gtv.

I'm very tempted to put a twin spark engine in also.

Are there any good build threads anyone would recomend showing the details and what's involved? Also what's the going rate for a twinspark engine these days if you can find one?

Keep up the good work!

You will be lucky to find a donor engine under £1500 nowadays. i have had this done on my 67 GTJ and also have an Alfetta GTV wtih a twinsaprk engine setup in it. Stock engine will give around 150bhp0 and you can comfortably get to around 200bhp with better cams, etc. Make sure the crankshaft has spigot pre-drilled otherwise will need this done as not all 75s had this from factory.

http://autocomponenti.com/twinspark_tech/twinspark...

http://www.autocomponenti.com/kjm/engine_modificat...

Alfa BB although US based, has excellent threads - this is just one i googled.

https://www.alfabb.com/threads/just-another-twin-s...

Of course, warm up your credit card if you start looking at Alfaholics twinspark builds!

https://www.alfaholics.com/filters/twinspark-engin...

You then have to decide whether carbs or ITBs, standalone ECU, etc - costs build up and a useful start is looking at people who have done this before.


first picture below is standard 75 Twinsaprk setup from my Alfetta GTV and below that is the (older) Jenvey ITB setup with Omex ECU, etc on the 105 GTJ.







HTH and good luck!

Edited by arguti on Monday 12th February 08:39

[Benspickup]

Thanks for the reply, some good info there.

Soon going to be putting some serious cash into the car going twin spark.

The cars nice and original with paperwork from new. Every service receipt, mot etc and milage records over the years.

I might be better off improving the nord engine. If I got it upto 160 to 170bhp, it would be brisk enough and good for touring also!

[arguti]

I am glad I now have a 105 Twinspark conversion but would I embark on that now especially an original car like yours, probably not. there are good builders out there that could upgrade the standard Nord engine to where you want it but as i was onece advised re engine rebuilds - "Fast, cheap and reliable - choose 2 of the 3!"

My GTJ needed a complete rebuild and is literally a complete nut and bolt restoration

[Dexter67]

Benspickup said:

I'm really enjoying this thread having just bought a 2000gtv.

I'm very tempted to put a twin spark engine in also.

Are there any good build threads anyone would recomend showing the details and what's involved? Also what's the going rate for a twinspark engine these days if you can find one?

Keep up the good work!

Thanks Ben glad your enjoying the thread

TS engine are becoming very rare, they do come up but mainly in Europe join some of the FB groups that's where i have seen the ones advertised. if your not looking for big power and you already have a 2L Nord I think I would be tempted to modify that, with a NA engine is always going to be a diminishing return on what you end up paying for how much power. Be interested to see how you get on and what route you end up taking,
I had a ride a few years ago in 105 with 200bhp and a Quaife sequential and that was very impressive.

[Dexter67]

[quote=arguti]

You will be lucky to find a donor engine under £1500 nowadays. i have had this done on my 67 GTJ and also have an Alfetta GTV wtih a twinsaprk engine setup in it. Stock engine will give around 150bhp0 and you can comfortably get to around 200bhp with better cams, etc. Make sure the crankshaft has spigot pre-drilled otherwise will need this done as not all 75s had this from factory.

http://autocomponenti.com/twinspark_tech/twinspark...

http://www.autocomponenti.com/kjm/engine_modificat...

Alfa BB although US based, has excellent threads - this is just one i googled.

https://www.alfabb.com/threads/just-another-twin-s...

Of course, warm up your credit card if you start looking at Alfaholics twinspark builds!

https://www.alfaholics.com/filters/twinspark-engin...

You then have to decide whether carbs or ITBs, standalone ECU, etc - costs build up and a useful start is looking at people who have done this before.


first picture below is standard 75 Twinsaprk setup from my Alfetta GTV and below that is the (older) Jenvey ITB setup with Omex ECU, etc on the 105 GTJ.







HTH and good luck!

Thanks for the links and info much appreciated - bet the ITB set up sound awesome when it comes on cam

[Benspickup]

I'm used to minis and tuning them. Although a bit of a different kettle of fish, I've buit a fairly hot engine for my pickup. Its bored out +60, rally cam and I've ported the head and fitted bigger valves. It flys but even the parts cost of that was over a grand for a humble A series.

My gut instinct having looked into it a bit more is to improve the Nord. Only because it's such a nice original car with bags of history. Plus I think I will end up spending alot to get the twinspark to a output we're it's worth the effort.

I'm thinking nord engine with

Fast road cams
Port the head and bigger valves
H/C forged pistons
Lightened flywheel
Alfaholics exhaust

Let's see what kind of engine that gets. There's probably 3.5k there just in parts. So if I got 160bhp, that's a grand per 10bhp. I don't want it to be ballistic but would like it to be lively.

Any update on this build thread. I.ll start my own build thread soon

[Dexter67]

Benspickup said:

I'm used to minis and tuning them. Although a bit of a different kettle of fish, I've buit a fairly hot engine for my pickup. Its bored out +60, rally cam and I've ported the head and fitted bigger valves. It flys but even the parts cost of that was over a grand for a humble A series.

My gut instinct having looked into it a bit more is to improve the Nord. Only because it's such a nice original car with bags of history. Plus I think I will end up spending alot to get the twinspark to a output we're it's worth the effort.

I'm thinking nord engine with

Fast road cams
Port the head and bigger valves
H/C forged pistons
Lightened flywheel
Alfaholics exhaust

Let's see what kind of engine that gets. There's probably 3.5k there just in parts. So if I got 160bhp, that's a grand per 10bhp. I don't want it to be ballistic but would like it to be lively.

Any update on this build thread. I.ll start my own build thread soon

Hi Ben

from memory there is a sweet spot of cost verses BHP which from memory is 160/180 spending money only on the parts you need for the revs required to get there.

As for mine formulating a plan for the engine, gearbox and diff.

[Dexter67]

Benspickup said:

I'm used to minis and tuning them. Although a bit of a different kettle of fish, I've buit a fairly hot engine for my pickup. Its bored out +60, rally cam and I've ported the head and fitted bigger valves. It flys but even the parts cost of that was over a grand for a humble A series.

My gut instinct having looked into it a bit more is to improve the Nord. Only because it's such a nice original car with bags of history. Plus I think I will end up spending alot to get the twinspark to a output we're it's worth the effort.

I'm thinking nord engine with

Fast road cams
Port the head and bigger valves
H/C forged pistons
Lightened flywheel
Alfaholics exhaust

Let's see what kind of engine that gets. There's probably 3.5k there just in parts. So if I got 160bhp, that's a grand per 10bhp. I don't want it to be ballistic but would like it to be lively.

Any update on this build thread. I.ll start my own build thread soon

I had a chat with a few friends and there are lots of companies that could help with your decisions but it would be worth calling Bob Dove Motorsport

[nfcf]

Love build and I looking forward to seeing what you do to that twin spark.

Benspickup said:

Let's see what kind of engine that gets. There's probably 3.5k there just in parts. So if I got 160bhp, that's a grand per 10bhp. I don't want it to be ballistic but would like it to be lively.

Any update on this build thread. I.ll start my own build thread soon

If you are planning to do the majority of engine work yourself it would be worth picking up a copy of Alfa Romeo DOHC High-performance Manual by Jim Kartalamakis. It'll have to be second hand or an ebook though as it is no longer in print https://www.amazon.co.uk/Alfa-Romeo-DOHC-High-perf...

[Benspickup]

Thanks for the top tip.

I'm not a fan of E books but I guess you can print them off once downloaded.

As said before, I'm more than happy with a bit more pep. It's a usable car for me and I'd like to keep it that way and keep the character as much as I can.

[Benspickup]

Any update OP

[Benspickup]

[Benspickup]

I think I can improve on what it's a nice original car.

[Dexter67]

nfcf said:

If you are planning to do the majority of engine work yourself it would be worth picking up a copy of Alfa Romeo DOHC High-performance Manual by Jim Kartalamakis. It'll have to be second hand or an ebook though as it is no longer in print https://www.amazon.co.uk/Alfa-Romeo-DOHC-High-perf...

Thanks

[Dexter67]

Benspickup said:

I think I can improve on what it's a nice original car.

The Alfa engine bay does look a bit busy, it would depend how far you wanted to go, I always look at what AH have done with there engine bays very stripped back so the engine is almost on its own - the centre point. My plane is to move the fuse box into the cabin, get rid of the servo and go unassisted battery relocated to the boot ?
if your engine is coming out anyway you have all sorts of options, be interested to see how far you want to go ?

[arguti]

Dexter67 said:

I had a chat with a few friends and there are lots of companies that could help with your decisions but it would be worth calling Bob Dove Motorsport

A sound choice!