what engine???

[steviet_1988]

hey
I have a bit of a problem in deciding what engine to use in my scirocco? I have a 1986 gtx with the 1.8 fuel injected 8v engine witch needs a head gasket and and a clutch aswell as a general service, It has done 153.000 miles. The problem is i have been offered an audi 2.0l 16v longblock engine and gearbox out of p reg a3 which has done 43.000 miles. I am in the middle of restoring the old rocco but i have never driven it and dont know how fast the standard 8v is, so this is where i am stuck and dont know what engine to put in it. what engine will be the best to put in it and what one will be faster??

any help will be much apreciated.
thanks stevie

[sidewalkdave]

http://sciroccoregisterforum.co.uk/carf ... p?f=9&t=61

that may be off some use to you

[ianaudia4]

hey
I have a bit of a problem in deciding what engine to use in my scirocco? I have a 1986 gtx with the 1.8 fuel injected 8v engine witch needs a head gasket and and a clutch aswell as a general service, It has done 153.000 miles. The problem is i have been offered an audi 2.0l 16v longblock engine and gearbox out of p reg a3 which has done 43.000 miles. I am in the middle of restoring the old rocco but i have never driven it and dont know how fast the standard 8v is, so this is where i am stuck and dont know what engine to put in it. what engine will be the best to put in it and what one will be faster??

any help will be much apreciated.
thanks stevie

The A3 never came with a 2l 16v engine mate, not on a P-reg, they were 1.6, 1.8 (2 versions) and 1.9 diesel.
Sounds as if it came out of a coupe. I had an Audi 80 with this engine, it was great and no problems, of course it is faster than a DX, it has 28 more HP.
The standard 8v DX should propel your GTX up to about 118 mph (book speed!), the Audi coupe and 80 with the 16v had a top speed of 130 mph.

[steviet_1988]

ok it must be out an audi 80 then. so does the 2.0l 16v just fit straight in without any problems or do you have 2 use the audi wiring looms and stuff like that?

[ianaudia4]

I have no idea if the engine will straight in, I've never tried fitting one into a Scirocco mate.
No doubt someone on here will know.
Good luck.

[filmidget]

Audi 80/Coupes have longitudinally mounted engines - various bits need swapping from a teansverse mounted, eg both manifolds, sump, oil pick up (I think - there is a good ClubGTI article on the procedure) from a Golf, Passat, etc.

[MrP]

ok it must be out an audi 80 then. so does the 2.0l 16v just fit straight in without any problems or do you have 2 use the audi wiring looms and stuff like that?

The audi engines are longitudinal meaning the gearbox is out of the back. Engine code is usually 6a. IIRC You need either a KR (mk2 golf 16v or a rare mk2 rocco 16v) a 9a (corrado 2.0 16v) or a ABF (golf mk3 16v) bottom end to swap all the parts over to make it transversal to fit in your rocco. I havn't dont much research into that tho as I managed to get hold of a 1.8 16v from a golf which more or less bolts straight in. I'm sure sites like vwgolfmkw.org and clubgti.co.uk have some threads on this matter. You can pick up a full KR for as little as £200 (£350 is the average price) ABF's are about the same price nowadays as are 9A's, but these are much rarer than the other two.

Basically the KR and 9a are classed as a short block engine so they are the exact same size as the 8v engine (height wise) but the ABF is classed as a tall block meaning its something like 13mm taller; you may have some issue with clearance (it'll still fit tho). The ABF is meant to be smoother than the 9a. Also the 2.0 9a is the same BHP as the 1.8 KR but has better torque. Put the KR cams in the 9a and you instantly get 150bhp+ (ABF is 150bhp)

Regarding fueling the simplist way is the use the KR's K-jet (same fueling as your original engine with some slighlty different parts and a ECU to control ignition) the 9a and 6a use K-jetronic which is slighlty different. The ABF is digifant so uses a ECU. Use your original intank and inline pump which is more than enough for the job.

Regarding fitting (once the engine is converted to transverse or you get a VW 16v) these use the original mounting points and mounts as your 8v. The fueling is a slight issue being that on the rocco (or mk1 golf, same A1 chassis) the airbox is on the passanger side of the bay and on the corrado, mk2/3 golfs on the drivers side. This means that all the fuel lines needed to be changed and the airbox cut and played with to fit on the drivers chassis leg. Also the washer bottle needs to be moved. You can try and source a MK2 rocco 1.8 16v KR engine as this is the only 16v to come in the a1 chassis from factory, meaning the airbox is in the same place as the 8v. Or you can just source the inlet manni and connecting pipes (which I have a made up one for sale! ) Expect to pay a huge premium on all mk2 rocco 16v parts as these are rare as turnip in the UK. About £100 for the inlet alone.

Gearboxes.. your original 8v is a 020 which will fit and work with a 1.8/2.0 16v. Its good to about 170 bhp I have been told, then it pops. The 020 16v gearbox is stronger. (8v box has 20mm spline, 16v has 22mm hence why stonger) The mk3 and iirc some corrado's use 02A boxes which are cable driven adding an extra ballache of messing about drilling holes in your bulkhead. These are meant to be so much better to use, smoother etc etc but the gear ratio's are shite (so i've read, I have no experiance of this but is the general consensus) You can get a 02A box out of a seat which is rod driven. Clutches. try and stick with a clutch to match your gearbox, unless your going for 16v engine and 8v gearbox which means use a 8v clutch and 16v pressure plate (I just went for a 8v organic and high pressure plate)

Regarding wiring, I'm using 16v KR K-jet fuling and using the original 8v loom (which will leave some wires spare) But I am using the KR ECU for ignition so I am using that part of the 16v loom. I assume you can do the same with the audi engine and K-jetronic ecu.

It's a bit long winded but covers all the points!

Ask me for anymore advice as I'm halfway into doing a 16v conversion on a 1985 GTX so have researched most points. But as I said earlier its best to look on different forums for more resources. Being so many ways to do a 16v conversion each conversion is slightly different!