In a message dated 7/3/02 2:51:15 PM, [email protected] writes: << However, nobody could substantiate that, and the "everyone" were just people on the web, who couldn't back that up with numbers.
- Tuners haven't given any numbers either. I've read your story, and while it appears convincing, there are just too many variables involved to truly say which is which. Maybe your friends car is simply stronger than yours. No two motors are the same. Perhaps you had to do all those mods to your car to simply get up the same level as him - If you read the story, I stated that when we both had the 1.8 head on our cars, but that I had the cam and power module, my car was faster, as it should be. Let me add to the story: a while after we got our 2.0 motors in the car, we eventually ended up with the EXACT SAME mods on both cars: 1.8 head, eurocam, exhaust, and a fuel enrichment device. With the cars set up the same, they were dead even in a race. I remember that we even switched fuel enrichments (I had the autotech, he had the TT) and raced again, and the cars were still dead even. My friend still has his '87, with this same setup. Also, "no two motors are the same" - maybe, but VW's are pretty close. EVERY VW that me or one of my friends has tuned/modded, whatever, has performed predictably. I've never SEEN a VW which produced "magical" extra horsepower, except for Dave's GLI. But I haven't PHYSICALLY SEEN his GLI (I bet I could figure out why it pulls such great numbers on the dyno, if I did tinker with it). My friends' 16V cars performed similarly at the track with the same mods, just like our Rabbit GTI's did, when we used to have them. (three cars, totally different mileage, with the same mods, all pulling 15.7-15.9 1/4 mile times). It would've been great if you could've dynoed right before you pulled the 2.0 head and then once again right after the 1.8 head was installed. At the same dyno, with the same gear on the car. - Yup, I know. Like I said, one of these days, I will do it. I just don't fu lly trust people who have something to sell you (like a portjob). By the way, here's a post from an old thread: <<9A16V VWvortex Member Posts: 63 From:Westlake Village, CA USA Registered: Sep 2000 posted 02-09-2001 05:02 PM ------------------------------------------------------------------------ I spoke to someone at TT today, so here's what he said: The bigger intake ports on a 1.8 head will make more of a difference than the bigger exhaust ports on a 2.0 head, since they allow more air/fuel INTO the combustion chamber. He admitted that they have never done a back to back comparison with the two stock heads, but that their test motors with the 1.8 16V head always seem to make more power.>> - Weird, huh? It wasn't until recently that I started to hear that the 2.0 head was the better one to go with, from people who've been in the business for decades. They also have access to flow benchs and engine dynos, neither of which any of us have. - Great. Where are the back to back dyno tests? I'd love to see your numbers Alex. It's just hard to believe it when Techtonics and Shine Racing are saying the same thing... -josh - I understand. They've been around longer, and it's what they do. But... I've proven tuners wrong before. One of these days, I will do the dyno tests. If I'm wrong, I'll admit it, but I think it'll prove what I've been saying.
