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Article #651

re: Performance increase for 83 VW GTI

#651
From: burden
Date: Fri, 31 Jan 1986 19:13
39 lines
2612 bytes
My 83 Rabbit GTI has 52k miles on it and come spring I'll be looking to do a 
few things to it.  First I'll adjust the valves, I checked them at 45k but 
they were all within limits.  If I decide I want a little more power I'll 
remove the head and do some minor work on it.  Like matching the ports, 
opening them up and polishing.  This will improve the flow and bump the power 
up a bit.  A good aftermarket header and exhaust system will get you some more 
poser also.  I lightened the flywheel on my other Rabbit, cut the weight from 
14 to 8.5 lbs, it's not the easiest thing to drive on the street, but once the 
revs come up, it flys!
 
The car also needs a better spoiler, my '78 diesel with a Kamei held the road 
better at 75+ than my GTI.  I don't see much use for the rear spoiler, it's 
the front end that gets loose, not the back.  Maybe, if you have a real deep 
front spoiler, you might find you need one out back.
 
3 piece wheels aren't going to do you any good, larger or wider wheels may, 
depending on what you want to do with the car.  15 inch wheels (with 50 series 
tires) will give you quicker cornering response, but a rougher ride.  I use my 
car for street driving, solo I and II and TSD rallying (lots of dirt roads).  
So far the car is completely stock.  I'm on my third set of summer tires, but 
have always used 185/60-14's.
 
I'd be a little concerned about installing a turbo on a 3 year old engine 
without a major rebuild, maybe the minor modifications will produce enough 
extra power to satisfy you.  You should also look into general tune up parts 
like new plug wires, a hotter coil, new plugs and all that.
 
 
Dave Burden					/-> dec-cheers!burden
603-881-2559		decvax!decwrl!dec-rhea!<
Nashua, NH					\-> dec-gndzro!burden
42 42' 48.8'' N
71 27' 23.7'' W
						
 
"I mean, if I went round saying I was an Emperor because some moistened bint 
had lobbed a scimitar at me, people would put me away."
			-- Dennis (Monty Python and the Holy Grail)
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From: burden@gndzro.DEC
Newsgroups: net.auto.tech
Subject: re: Performance increase for 83 VW GTI
Message-ID: <848@decwrl.DEC.COM>
Date: Fri, 31-Jan-86 14:13:26 EST
Article-I.D.: decwrl.848
Posted: Fri Jan 31 14:13:26 1986
Date-Received: Sat, 1-Feb-86 20:37:43 EST
Sender: daemon@decwrl.DEC.COM
Organization: Digital Equipment Corporation
Lines: 39