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8V mods

Exhaust is the biggest thing. They came with a stock crappy single-outlet 
manifold. Get yourself a dual outlet manifold and a TT dual downpipe or an 
Autotech header or something else like that. Of course, you risk breaking 
studs off in the head when you do this, which necessitates taking off the 
head and having them drilled out at a machine shop. This and 2" mandrel 
bent exhaust will make the biggest difference for the least money.
Put a set of high-compression pistons in there from (for example) an 
'85-'87 GTI/GLI and you'll get yourself a lot more power, but your motor 
will become an interference motor, and you'll have to run higher octane 
fuel or install a knock sensor.
A G-grind or hotter cam is nice. I hear that the 1.6L cam is a little 
hotter than the stock 1.8 cam.
A Golf throttle body portmatched to your intake manifold gives a nice 
little kick. The secondary butterfly is bigger. This throttle body is the 
same as the Jetta II throttle body, the Audi 5000 throttle body, and the 
Neuspeed throttle body. You have to flip the linkage around, but that's no 
big deal. Your idle adjustment screw will end up facing your firewall, 
which is annoying sometimes. This mod will give you almost no benefit (and 
perhaps actually will do the opposite) if you don't carefully portmatch it 
to your intake manifold. You have to remove a lot of material - don't go 
through the side!
A K&N or an Amsoil filter will give you a nominal gain. A functional hood 
scoop or under-bumper scoop with screen will give you more (this is on my 
list of things to do). Drilling your airbox out is a debate - some say it 
helps, some say it doesn't. But it definitely changes the sound of your 
car :)
	-Josiah



On Mon, 6 May 2002 kd5ceu@juno.com wrote:

> What are some good basic mods for an 1.8L 8V motor? Thanx...
> 
> 
> 
> 
> Danno
> Hockley, TX
> 
> 
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-- 
(2)'87 5KCSTQA's
'83 Rabbit AutoXer
'91 Volvo 245 5-sp
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