1.8 DZ tuning

[b2_sport]

As some of you know I have an Audi 80 Sport with the 1.8 8v DZ engine. I was looking at doing a 20v turbo swap. But I have decided I want to keep this car original as possible.

I know the 2.0 8v bottom end is a popular mod for this engine and the bottom end is not very expensive either. I do not really want to get fast road cams because they are a tad expensive, any other mods I can do to this engine to improve performance. I am going to be stripping the cylinder head soon, to replace the camshaft seal, will probably replace all other seals and gaskets whilst I am it.

Any recomendations.. I am not looking to break the bank on this one, just want to give the engine a little overhaul.

[Coxy]

can't give any input to this at the moment, but I'll be watching this thread develop a bit as my intention was the 1.8T lump at first but going to stick with the DZ engine as to be fair, it's a bloody goodun' (apart from the exhaust falling off yesterday!)

[pimpdriver]

send the head to tony (4V6 on here).

[Coxy]

what exhaust system do you have on yours. Gotta replace the one on mine this week and have just got a quote from our local Powerflow dealer to have a customer one made up for around £250 fitted.

[b2_sport]

I am using the stock manifold and downpipe which all seem in good condition, I have had a new silencer and new back box fitted to the car.

I am also going to be fitting a rear brake disc conversion using Mk2 16v donor parts. Handling and braking is more or less sorted, just need to give the engine a little poke and the car will be just the way I want it.

What can tony (4V6 on here) do to the head?

[vag80]

the DZ is a good engine as that is what is in my b3 80 the engine has had a bit of work done to it
rebored to take 83mm pistions,lightened and balanced,TSR pack'A' head cam and a few other bits and pices it gose well

[ChrisG]

Originally Posted by Coxy

what exhaust system do you have on yours. Gotta replace the one on mine this week and have just got a quote from our local Powerflow dealer to have a customer one made up for around £250 fitted.

Jetex list an exhaust for these cars , about £250 ish
#

here we are

http://www.jetex.co.uk/website/jetex...uminised+Steel

Been thinking about one, group buy ?? !!!


As for the 1.8DZ, other than a bore to 1.9, head + cam will see about 135bhp. If you are stripping it then I'd balance everything as well.
A 2 litre will give you more torque but virtually no more power - I know because I ran one in a B3 Sport , BRMotorsport, head, Shrick split cam, Sebring exhaust , about 134 bhp and eventually had the ignition electronics seen to by AmD ( Geoff Everett, not the other more recent lot ) and he got it to 138 bhp and about 145 lbs feet. Ran really strong, love to have the car back now, G 780 DDP in white.....

[ChrisG]

I seriously think you're wasting your time and money with the discs BUT I'd be interested in how you manage , parts costs and any difficulties.... I'v e often thought about it.
Sports have much bigger rear drums , 200 mms, against the other 80 models 180 mms.
I think some late, 1980s early 19990s, model Passat estates even had about 220- 2330 mms ??

[vag80]

i think jetex exhausts are very good they fit well,fitted mine at home with the car on axel stands it also sounds nice and it's quite on the motorway. i'm hoping i can get one for my 4000.
Chris nows your sport coming on

[dubmeister]

Originally Posted by b2_sport

As some of you know I have an Audi 80 Sport with the 1.8 8v DZ engine. I was looking at doing a 20v turbo swap. But I have decided I want to keep this car original as possible.

I know the 2.0 8v bottom end is a popular mod for this engine and the bottom end is not very expensive either. I do not really want to get fast road cams because they are a tad expensive, any other mods I can do to this engine to improve performance. I am going to be stripping the cylinder head soon, to replace the camshaft seal, will probably replace all other seals and gaskets whilst I am it.

Any recomendations.. I am not looking to break the bank on this one, just want to give the engine a little overhaul.

83mm pistons, headwork, piper 270 or 285 cam, 5 Cyl throttle body & warm up reg, Jetex zorst, circa 135 bhp nice engine- same spec as the 1.8 GTI DX motor- same mods apply.
Had one with the ally "winged" sump- very bad for oil surge- strange as it had plenty of baffles inside- ended up DIYing a standard steel one never had a prob again...