Scirocco Register

Good evening gents,

I'm looking to fit a Mk2 16v KR engine into my 1993 Scirocco GTII. I'm aware of the basics of swapping an engine but wondered if I could have some help in case I've missed something.

The only things I'm sure about so far are:
1. Mk2 Golf KR 16v engine and ancillaries.
2. Scirocco Scala K-Jet fuel pump, accumulator and lines.

And the things I'm unsure about are:
1. Will the standard 5-speed gearbox fitted to my car suit the 16v engine?
2. Does my car come fitted with the required 100mm driveshafts?
3. Will the standard engine mounts suit the 16v engine?
4. Brakes wise I'm thinking Audi 80 caliper carriers with Mk2 Golf 16v 256mm discs/calipers, how does that sound to you lot?

Thanks in advance, I'll post a slow progress thread once I get started.

i'm doing the same swap on my GT2 now, your car should have the 100mm drive shafts mines a G reg and that has them. your gearbox should fit but the gear ratio would be wrong for the engine, i'm pritty sure the GT has a lot closer ratio gearbox than the 16v. i've not fitted my engine mounts yet but had a good luck around the engine and it looks like they should bolt straight up to it (i'll be doing this tomorrow so i'll let you know of any problems i come across), but even the cam cover has a raised edge where the rocco mount should go so i'm guessing it should just be straight forward bolt up and go.



don't take this for gospel tho, i'm no expert at this i've just got the engine and car and having a crack at it and see how i get on, kinda finding out more as i go along. i'm hoping to have my engine in by the weekend so i'll keep you posted on how i get on.

ABC wrote:The things I'm unsure about are:
1. Will the standard 5-speed gearbox fitted to my car suit the 16v engine?
2. Does my car come fitted with the required 100mm driveshafts?
3. Will the standard engine mounts suit the 16v engine?
4. Brakes wise I'm thinking Audi 80 caliper carriers with Mk2 Golf 16v 256mm discs/calipers, how does that sound to you lot?

1 - Yup, see below
2 - It should do, if your keeping your current gearbox it shouldn't matter too much as they'll be going back on the same anyway
3 - Again, see below
4 - I'm running that exact same set-up on the front of my car (standard 16v rocco's came with this set-up too) The only difference to mine is that i'm running mk2 Golf rear discs/calipers with the larger 9" brake servo/22.2mm master cylinder - the car stops very quickly and i find the system better than some newer cars i've driven!

What management system are you using for the 16v? standard KR ecu/tci unit?

RoccoGuy wrote:Your gearbox should fit but the gear ratio would be wrong for the engine, i'm pretty sure the GT has a lot closer ratio gearbox than the 16v.

I use the standard rocco 'box with my 16 engine with no problems, the only downside i can think of is that the engine revs a bit higher in 5th due to the short ratio

I've not fitted my engine mounts yet but had a good luck around the engine and it looks like they should bolt straight up to it..... ......but even the cam cover has a raised edge where the rocco mount should go so i'm guessing it should just be straight forward bolt up and go.

Yup, the engine mount goes straight on



You can clearly see it in place on the right of the pic.

The other engine mounts fit via the gearbox so there is only one physically bolted to the 16v lump

Do let me know how it goes for you RoccoGuy and any troubles you have along the way!

Thanks for the picture Birdy, my intention would be to use standard KR management on the car... At least for now.

i'll keep you informed of how i get on mate, just one question while this thread is getting some attention...

i'm going with twin 40's soon but want to get it running on the standard injection for the time being just for peace of mind, i have the early spec engine bay loom to plug and play with the rocco wiring but does the golf inlet fit ok in the rocco? i've noticed that the rocco ones are the opposite way around.

sorry for the thread jack ACB but i thought this might be of use to you as well.

Going from carb - k-jet I think you'll need to change the fuel tank as well as the lines so that you get the tank mounted lift pump. I'm not 100% on this but seem to remember reading that whilst considering options for my conversion.

Brakes - 16v servo/master and some brackets to fit 280mm discs to your current callipers are the well used combination and usually easier to get hold of than the Audi carriers.

skattrd wrote:Going from carb - k-jet I think you'll need to change the fuel tank as well as the lines so that you get the tank mounted lift pump. I'm not 100% on this but seem to remember reading that whilst considering options for my conversion.

i've read that another way around this is to fit the lift pump from the golf?

skattrd wrote:Going from carb - k-jet I think you'll need to change the fuel tank as well as the lines so that you get the tank mounted lift pump. I'm not 100% on this but seem to remember reading that whilst considering options for my conversion.

I'd considered the same thing but apparently the EFI and Carb models of the Scirocco all utilised the same tank but with different pumps, so changing the tank isn't necessary in this case and can be got around by using the lift pump from a Golf or Scirocco Scala/16v. I did also consider what you said about the brakes but that would require me fitting 15" wheels surely?

No worries RoccoGuy, I'd be interested to find out the answer to your question as well if anybody knows. Anyone?

280mm discs generally do need 15" wheels, but the same adaptors can be used with 270mm discs which should fit under 14" rims

Right you are then, cheers :)

if you are going to do dual carb conversion, you will need to get a new fuel pump and a new pressure regulator. im just in the process of doing this to my 8v lump and found out pretty quickly that the new items were needed. i brought a facet silver top kit to lift the fuel and also a new pressure regulator to deal with over-fueling and idling speeds. i think the pressure for the dellorto's i have is around the 5 psi mark (unsure psi for webbers) so the original one was'nt up to the task.

birdy, is that a standard golf 16v exhaust manifold your using? i'm not too keen on going the 4 branch route after reading about most of them suffering from cracking issues.

Yup its a standard kr exhaust manifold but the key to being able to use it is the downpipe.

I'm using a techtonics stainless downpipe that allows me to keep a standard manifold, the downpipe can be found here http://www.techtonicstuning.com/showpar ... um=251.223

Not a cheap piece of kit, cost me the best part of £200 to get hold of and i think i'm either the 3rd of 4th owner!! So i would consider using a 4 branch conversion manifold! I know i'm tempted to swap over to one

ACB wrote: in case I've missed something.

You will need the injection engine loom, and at the very least the part of the rear loom that provides power to the lift pump and main pump, plus the fuel pump relay. I found it easier on a conversion I did on a friends car to fit the complete wiring looms from an injection car (it was also a carb car originally). You will need the ignition loom and TCI/timing box from the KR, as it has an additional couiple of temp senders and a vacum feed on it.

skattrd wrote:Going from carb - k-jet I think you'll need to change the fuel tank as well as the lines so that you get the tank mounted lift pump.

No need to change the tank, but check the fuel lines, as far as I know carb lines are not the correct diameter and designed for lower pressure. We fited 8mm high pressure lines. Take the main pump and accumulator and mounts directly over from the injection car, the carb car shell has the captive bolts ready to fit them. You will need a Scirocco/Golf cabriolet lift pump, a mk2 Golf pump will not fit.

Birdy wrote:Yup its a standard kr exhaust manifold but the key to being able to use it is the downpipe.

I'm using a techtonics stainless downpipe that allows me to keep a standard manifold, the downpipe can be found here http://www.techtonicstuning.com/showpar ... um=251.223

Not a cheap piece of kit, cost me the best part of £200 to get hold of and i think i'm either the 3rd of 4th owner!! So i would consider using a 4 branch conversion manifold! I know i'm tempted to swap over to one

i'll probably just get my mate to knock me up a down pipe then, now i know the KR mani can be used