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cnavarro |
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Cylinder Guru ![]() ![]() Group: Members Posts: 472 Joined: 30-December 02 From: Chicagoland! Member No.: 49 Region Association: None ![]() |
With everyone's input from the forums, here's what the lineup for 2004 is lookling like:
For the 2.0: Still sourcing one. Once I have it in my hands, i'll be able to determine what overbores from the stock 80mm are possible. For the 2.2/2.4: factory 84mm, 85mm, 86mm (new size, never before offered by anyone) For the 2.7/2.8: factory 90mm, 92mm RSR, 93mm (bore size used by porsche for racing, a little thin at the skirt for my tastes, but they did it, so why can't we?) For the 3.0/3.2: factory 95mm, 98mm (or any bore size between 95 and 98). I'm waiting on some factory cylinders for inspection to determine if anything over 98mm is acceptable. All cylinders will be in the later style, fully finned. For the 3.6/3.8: factory 100mm, 102mm (available with the RS spec 107mm case register or RSR 109mm case register), 104mm (available on both 107 or 109 registers), and possibly larger with an additional resizing of the case and head spigots, as we're waiting on a 3.8RSR cylinder and furthermore inspection of the heads and case to see what the registers can be safely opened up to. All Kits will come with later model air deflector tin updates and will be available with factory porsche motorsports or ARP head studs, your choice. Tentative pricing is going to be a flat $2999/cylinders only across the board from a 2.0 to a 3.8RSR set. If anyone has any questions or would like to see anything else added to the lineup, just drop me a line at charles@LNengineering.com. Thanks for your input guys! Again, thanks to Brad for helping me put all this together! Charles Navarro LN Engineering http://www.LNengineering.com Aircooled Precision Performance |
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ArtechnikA |
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rich herzog ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None ![]() |
QUOTE(cnavarro @ Dec 23 2003, 05:27 AM) For the 2.7/2.8: factory 90mm, 92mm RSR, 93mm (bore size used by porsche for racing, a little thin at the skirt for my tastes, but they did it, so why can't we?) ...will be available with factory porsche motorsports or ARP head studs, your choice. Tentative pricing is going to be a flat $2999/cylinders only across the board from a 2.0 to a 3.8RSR set. because we don't have access to the aluminum cases the factory used with the first run of 3,0 RSR's ? even they couldn't make the magnesium cases work with 93mm cylinders and ran a batch in aluminum. AFAIK, those have been unobtainium for many years ... (you might find one in an IROC RSR...). (there were reliability issues even with the aluminum cases in the sprint-race service most of them wound up in - but they might work out for street/AX/DE use. or in an SC case ...) your pricing for cylinders and ARP head studs is the same for the 6's and the 4's ? sounds like the 6-cyl guys are getting a pretty good deal ! so how would this work (laying the groundwork, because it seems to me like there's serious lead time involved ...) - we'd spec pistons - from JE for example - and then you bore and plate the cylinders as appropriate for cylinder wall clearance ? or do we spec cylinders first to nominal dimension and then take that number to JE ? |
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