2004 Porsche 911 Nickies Lineup, Thanks to Brad for all his help! Options

[cnavarro]

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

[ArtechnikA]

Ok. So a 2.2/2.4 cylinder with 2.7/2.8 registers, underbored to 89mm (OR) straight out 2.7/2.8 at 89. There is a difference, ever so slight.

i'm not -completely- sure what Eric is shooting for, but all the 6-cyl blocks through the 2,7 have the same cylinder spacing. (you -could- machine a 2,0 case for 2,7 if you really wanted to, but it's much more expensive than just starting with the bigger case...)

i'm not sure what the difference is - can you elaborate ?

2,0->2,2 were done with bore, 2,4->2,7(+) used the 70,4mm stroke crank. 2,2 and 2,4 both use 84mm cylinders - only the stroke changed (and compression ratio, and valve timing, and induction... but those don't affect displacement ...)

not sure if that answered your question or if it only gave you specifications you already knew...