1988 Scala 1.8t agu conversion

Scirocco Register members projects

Moderator:Scirocco Register

Forum rules
Section for all vehicle and related projects. Please keep responses pertinent to thread.
User avatar
ant
Posts:128
Joined:Sun Sep 20, 2015 7:08 pm
fill in the right answer:15
Re: 1988 Scala 1.8t agu conversion

Post by ant » Wed Jan 13, 2016 11:32 pm

More update on the build!

Side view of the engine with parts temporarily in place - braided fuel lines to new 8mm I/D steel fuel lines, silicone coolant pipes from engine block to header, and silicone 2.5" to 2" reducer on inlet manifold (swopped this at a later date for a 90 degree bend). On top of the inlet manifold there is a bit of braided hose and vacuum pipe, when it was fitted to the audi it used to be linked to the charcoal canister (fuel tank vapour to inlet manifold), i removed it and ran the boost gauge from it, later on i removed the brass outlet, tapped it and put a grub screw in it to smooth it over.
22. Fuel line and coolant header.jpg
Another view from the front:
21. Fuel line and coolant header.jpg
This is the intercooler pipe which originally came on the audi, before it was a different shape, it ran off the back of the turbo then at a 90 degree bend ran along the back of the engine towards the drivers side then bent another 90 degrees and ran to the bottom of the engine where it joined the pancake pipe which connected the side mounted intercooler. I chopped it down and had it welded so it just formed a 90 degree bend with one longer section, i could of bought something similar but i thought this would be a little stronger:
23. intercooler pipping 1.jpg
You do not have the required permissions to view the files attached to this post.
Last edited by ant on Thu Jan 14, 2016 12:12 am, edited 2 times in total.


1988 Mk2 Scirocco Scala 1.8t AGU - now sold :-(

User avatar
ant
Posts:128
Joined:Sun Sep 20, 2015 7:08 pm
fill in the right answer:15

Re: 1988 Scala 1.8t agu conversion

Post by ant » Wed Jan 13, 2016 11:39 pm

A mock up of how i was wanting the intercooler pipping, 2" polished alloy pipping with silicone joiners:
24. intercooler pipping 2.jpg
A pic from the front:
25. intercooler pipping 3.jpg
Quick pic of the toyo motor sport intercooler in place, it is bolted in through the bottom and fixed in place along the top via a stainless bracket:
26. intercooler pipping 4.jpg
You do not have the required permissions to view the files attached to this post.


1988 Mk2 Scirocco Scala 1.8t AGU - now sold :-(

User avatar
ant
Posts:128
Joined:Sun Sep 20, 2015 7:08 pm
fill in the right answer:15

Re: 1988 Scala 1.8t agu conversion

Post by ant » Wed Jan 13, 2016 11:47 pm

Throttle cable fitted, coolant header to radiator silicone pipe fitted, braided pipe ends and clamps fitted, radiator with slim line fan fitted, and brass inlet on manifold removed and replaced with grub screw:
27. intercooler pipping 5.jpg
Rocco front end starting to go back on:
28. intercooler pipping 6.jpg
Most of the hoses clamped down, t bolts where used on all the intercooler pipes (turned the other way round so bolt was at the bottom in the end):
29. intercooler pipping 7.jpg
You do not have the required permissions to view the files attached to this post.


1988 Mk2 Scirocco Scala 1.8t AGU - now sold :-(

User avatar
ant
Posts:128
Joined:Sun Sep 20, 2015 7:08 pm
fill in the right answer:15

Re: 1988 Scala 1.8t agu conversion

Post by ant » Thu Jan 14, 2016 12:09 am

I looked into what air intakes would be best to use, i originally wanted to use the original audi one with an upgraded filter but it wouldnt fit due to new mastercylinder/servo and intercooler pipework! Found a thread online (http://www.audi-sport.net/xf/threads/mu ... rs.191705/) and it recommend using a honda s200 cone filter as they where really good quality, off the shelf and reasonably well priced at £20 compared to k&N's £50, the pipe that connects to the S200 is alot larger than the intake on the 1.8t so i used a silicone 83mm to 70mm (I/D) reducer to join them:
Air intake.jpg
Side view of engine with all plumbed and wired in:
30. intercooler pipping 8.jpg
Front view of engine with all plumbed and wired in:
31. intercooler pipping 9.jpg
You do not have the required permissions to view the files attached to this post.


1988 Mk2 Scirocco Scala 1.8t AGU - now sold :-(

User avatar
ant
Posts:128
Joined:Sun Sep 20, 2015 7:08 pm
fill in the right answer:15

Re: 1988 Scala 1.8t agu conversion

Post by ant » Thu Jan 14, 2016 12:25 am

I simplified the PVC (positive crankcase ventilation) system and vented it to atmosphere as i found that it reduces the likliness of boost leaks and prevents oil vapours and sludge getting into air inatke system which reduces ocatane levels... 1st off i removed all the old piping from the crankcase and the top of the oil filter housing and bunged the redundant intake manifold hole with a 19mm alloy blank off ebay! I kept the 90 degree joiner from the oil housing and bought 3 meters of 19mm braided pvc oil pipe, 1 x 19mm t piece, 1 x 19mm 90 degree bend and a 0.5L aluminium catch can with 19mm inlet/outlets and followed this guide! - http://www.audi-sport.net/xf/threads/gu ... em.118021/

Pics of mine installed:
catch can 1.jpg
catch can 2.jpg
catch can 3.jpg
You do not have the required permissions to view the files attached to this post.


1988 Mk2 Scirocco Scala 1.8t AGU - now sold :-(

User avatar
ant
Posts:128
Joined:Sun Sep 20, 2015 7:08 pm
fill in the right answer:15

Re: 1988 Scala 1.8t agu conversion

Post by ant » Thu Jan 14, 2016 12:32 am

New gears stick / selector fitted, i fitted this from under the car as i didnt want to alter the inside of the car to much, i pushed it up through the tunnel under the car and set in about an inch further back than where it would originally sit (original gearstick sits further forward i think, and leans back!), i drilled new holes and bolted it in, for got to take pics from underneath but heres one from inside:
32. Gear selector fit.jpg
Added a boost gauge, tried to make it fit in as neatly as possible, drilled a large hole in the dash blank and fitted it to it, also added a new stereo:
Boost gauge 1.jpg
Boost gauge 2.jpg
You do not have the required permissions to view the files attached to this post.


1988 Mk2 Scirocco Scala 1.8t AGU - now sold :-(

User avatar
ant
Posts:128
Joined:Sun Sep 20, 2015 7:08 pm
fill in the right answer:15

Re: 1988 Scala 1.8t agu conversion

Post by ant » Sat Jan 16, 2016 6:14 pm

Exhaust now! Parts used - 2m 2.5" stainless, 3 x stainless 90 degree 2.5" bends (think i had to buy an extra one making a total of 4), 2.5" stainless flexi joint, free flow stainless steel back box and the old manifold mount from the previous audi exhaust...
1. Exhaust Parts.jpg
Custom manifold down pipe:
2. Downpipe 1.jpg
3. Downpipe 2.jpg
You do not have the required permissions to view the files attached to this post.


1988 Mk2 Scirocco Scala 1.8t AGU - now sold :-(

User avatar
ant
Posts:128
Joined:Sun Sep 20, 2015 7:08 pm
fill in the right answer:15

Re: 1988 Scala 1.8t agu conversion

Post by ant » Sat Jan 16, 2016 6:19 pm

Mid and rear section:
4. Exhaust pipe complete.jpg
Complete system:
6. Exhaust complete system 2.jpg
Exhaust system fitted:
8. System temp place 2.jpg
You do not have the required permissions to view the files attached to this post.


1988 Mk2 Scirocco Scala 1.8t AGU - now sold :-(

User avatar
ant
Posts:128
Joined:Sun Sep 20, 2015 7:08 pm
fill in the right answer:15

Re: 1988 Scala 1.8t agu conversion

Post by ant » Sat Jan 16, 2016 6:27 pm

Finally the petrol tank! The originall scirocco one was modified to house the audi a3 1.8t pump and swirl pot!

Tank removed the new hole marked up, it was made to the side as the tank bottom was flatter for the pump to sit on:
1. Petrol tank standard.jpg
Hole cut out:
3. Petrol tank mod 0.jpg
Circular metal piece made to be welded to the top of the tank for the pump to be fixed and sealed to:
2. Petrol tank mod 1.jpg
You do not have the required permissions to view the files attached to this post.


1988 Mk2 Scirocco Scala 1.8t AGU - now sold :-(

User avatar
ant
Posts:128
Joined:Sun Sep 20, 2015 7:08 pm
fill in the right answer:15

Re: 1988 Scala 1.8t agu conversion

Post by ant » Sat Jan 16, 2016 6:32 pm

Circular piece temp in place:
4. petrol tank mod 2.jpg
Fully welded:
8. Petrol tank mod 6 - fully welded.jpg
Nuts where welded around the rim so that the pump could be bolted down (a big plastic circle was made to hold it down), test fitted:
9. Petrol pump test fit.jpg
You do not have the required permissions to view the files attached to this post.


1988 Mk2 Scirocco Scala 1.8t AGU - now sold :-(

User avatar
ant
Posts:128
Joined:Sun Sep 20, 2015 7:08 pm
fill in the right answer:15

Re: 1988 Scala 1.8t agu conversion

Post by ant » Sat Jan 16, 2016 6:35 pm

Petrol tank was sanded down, rust treated, painted and pump fitted:
10. Petrol pump fitting 1.jpg
Close up of pump:
11. Petrol pump fitting 2.jpg
Cutting under the passenger seat to be able to access the pump:
12. Car mod.jpg
You do not have the required permissions to view the files attached to this post.


1988 Mk2 Scirocco Scala 1.8t AGU - now sold :-(

User avatar
ant
Posts:128
Joined:Sun Sep 20, 2015 7:08 pm
fill in the right answer:15

Re: 1988 Scala 1.8t agu conversion

Post by ant » Sat Jan 16, 2016 6:37 pm

Some pics of the engine conversion finished!
Car pick 1.jpg
Car pick 2.jpg
Car pick 3.jpg
You do not have the required permissions to view the files attached to this post.


1988 Mk2 Scirocco Scala 1.8t AGU - now sold :-(

User avatar
ant
Posts:128
Joined:Sun Sep 20, 2015 7:08 pm
fill in the right answer:15

Re: 1988 Scala 1.8t agu conversion

Post by ant » Sat Jan 16, 2016 6:39 pm

Car pick 4.jpg
You do not have the required permissions to view the files attached to this post.


1988 Mk2 Scirocco Scala 1.8t AGU - now sold :-(

User avatar
james butler
Posts:2906
Joined:Fri Apr 24, 2009 1:54 pm
fill in the right answer:10
Location:birmingham

Re: 1988 Scala 1.8t agu conversion

Post by james butler » Sat Jan 16, 2016 7:18 pm

exellent work ant.

great idea with the tank mod.
i tried to retrofit a plastic mk3 tank under the car but it just wouldnt fit.
carefull what you post up as you might end up with a que of people out side your door wanting you to do theirs next! :-D


I dont mind project cars but I HATE SANDING!!!

User avatar
ant
Posts:128
Joined:Sun Sep 20, 2015 7:08 pm
fill in the right answer:15

Re: 1988 Scala 1.8t agu conversion

Post by ant » Sat Jan 16, 2016 9:36 pm

james butler wrote:exellent work ant.

great idea with the tank mod.
i tried to retrofit a plastic mk3 tank under the car but it just wouldnt fit.
carefull what you post up as you might end up with a que of people out side your door wanting you to do theirs next! :-D
Cheers mate, shame about the mk3 tank not fitting, from what I hear it fits a mk2 golf but that has a different chassis.

Ha I did think that but hey it's always good to share ideas, hopefully will help someone else out. I can't take all the credit my dad did a great job helping me along the way and his welding skills where really put to the test!

Still not running quite rite yet, hopefully gunna have a play with it tomorrow once I've put a new alternator on it. Got a mate with a mk4 1.8t with same engine so can swop parts over!


1988 Mk2 Scirocco Scala 1.8t AGU - now sold :-(