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On 29 Nov 2004 at 23:59, Amy Rarig wrote: > Hi everybody! While on our happy holidays in New Jersey, one of the spark > plugs blew out and I noticed it had a heli-coil on it already. The head is > stripped, so I tried to JB Weld it but it did not hold more than 20 miles. > Drove home (120 miles) on the three remaining cylinders. We plan on getting > new heads and pistons and cylinders. I think it should be possible to up the displacement and still use the FI, but I haven't done it. A number of people have tried, but the results have been less than stellar. > Our question is can we get bigger pistons without interferring with the fi? > If not how big can we go without any machining? You CAN go to 87mm, but the real answer is that any oversize bore that will have any longevity at all will require machining of both the case and the heads. In other words, to do this right is a big deal and requires a complete engine rebuild. DON'T buy a JC Whitney drop-in Big Bore kit unless you want to do it all over again next year. -- Jim Adney jadney@vwtype3.org Madison, WI 53711-3054 USA ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~