1.8l 16v engine euro spec = 139hp. 1.8l 16v engine US spec = 123hp. Differences between the two: #1 Hotter intake cam #2 Long tuned euro downpipe (no cat) #3 50mm intake manifold
These three things contributed to the additional 16hp. The cam is good for 7hp, the intake is probably worth another 5-7hp. I've dynoed the euro downpipe vs, header, vs US downpipe and cat vs US downpipe and hollow cat. They were all about equal, with the euro downpipe having a low end torque advantage. The 50mm intakes are floating out there used for $300 including shipping. Worth it? Not sure. It'd be nice to have some 42mm vs 50mm dyno figures tho... -josh --- [email protected] wrote: > I recently removed my 50mm intake manifold so I > could put my EGR valve back > on and pass smog. > What I noticed: with the manifold, in 1st gear, > once the rpms are at > 4000rpms or higher, it's instant wheelspin. With > the stock U.S. manifold, > it's much harder to provoke wheelspin. I have to > really try. > Nobody's ever done a before and after dyno test on > the manifolds, but shit, > it seems like the euro manifold gives a substantial > increase in power. > Other than the wheelspin, the car has of course > slightly more torque, and > less top end with the US manifold. > I then put my modded Passat catalytic converter on > the car and now it's got > no traction problems at all. The car still hauls > some ass, but the power > loss is noticeable. > > Alex Ranarivelo > South California > '91 GTI 16V > w/European Motorworks ported 1.8 16V head, euro > intake cam, Garrett chip, > 50mm intake, Borla exhaust, 3.90 ring and pinion, > .80 5th gear, no A/C, > neuspeed lowering springs, and rear tri-tie bar. > 140hp@the wheels. > <A HREF="http://www.iders.com/alexweb/";>Alex's > Tuning Information</A> > _______________________________________________ > A2-16v mailing list > [email protected] > http://maillist.myip.org/mailman/listinfo/a2-16v ===== Josh Wyte Momentum Motorsports 508-833-3024 After 5 pm EST __________________________________________________ Do You Yahoo!? Yahoo! - Official partner of 2002 FIFA World Cup http://fifaworldcup.yahoo.com
