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  1. Aditza579

    GTI Upgrades

    First check the state of the factory hone. It doesnt worth honing it again if the factory finish is still intact. Look on the cylinder 90 degrees of the wrist pin axis, both sides. If you can't clearly see all the Xes, then the honing process is necessary. If you have to do it, use the ball-hone method (this works only for fine honing, if there are clear signs of wear, you may have to use the three leg tool or even worse). But this is a case of deciding only after you tear into the engine. Good luck!
  2. Aditza579

    GTI Upgrades

    If you can find, i recommend Mahle rings. They are very good. I've rebuilded 2 of these engines with Mahle rings and all of them run strong compression after many miles. My track Polo with 1.6 16v has Mahle rings for the last 10k kms (@6k miles), all of them (without the 300 miles break in perios) done on the track, revved hard, and the compression is as good as it was after break in and the oil consumption is as low as 200 ml in 3-3.5k miles of track use. So, i will highly recommend these rings, and also the VR headgasket.
  3. Does anyone know the outer or the inner diameter of the primaries and the secondaries for a Raceland 4-2-1 manifold for AFH/AFK? Or do you have one at your disposal to measure it? I would very much appreciate it!! I want to build a replica from stainless for an AUB in a newer Polo and the maths gave me some dimensions and i would very much like to compare those with a genuine Raceland. I would buy a Raceland but I live in an aera where the shipping costs almost as much as the mani and in this case it's easier and cheaper for me to build one. Thanks in advance!

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