Pelican Parts Forums - Resto - Project Sixtyniner, part deux

Pelican Parts Forums (http://forums.pelicanparts.com/)

- Porsche 911 Technical Forum (http://forums.pelicanparts.com/porsche-911-technical-forum/)

- - Resto - Project Sixtyniner, part deux (http://forums.pelicanparts.com/porsche-911-technical-forum/439335-resto-project-sixtyniner-part-deux.html)

Wow, looks fantastic! Can't wait to hear it run! I guess it goes without saying that we will all be waiting for the first videos. Good luck.

Slight spec change - I must be going crazy, but I have decided to go ALL THE WAY. Some would say I already had, but...I just got my hands on an out of spec 66mm crank, now to be reground to 3 liter crank journals, fitted with custom R&R rods from LN Engineering.

Oh yeah, I am going to use titanium wrist pins, too. :eek: That's what happens when you talk to Burn Bros too much. ;) The rotational mass of this setup will be downright juicy. Albeit not to titanium rod spec, but certainly good enough and without the life limit worries that can come with Ti rods.

Quote:

Originally Posted by kenikh (Post 4281575)

2.3L ST replica motor:

Fully detailed small spigot 7R case (shuffle pins, squirters, light mooning, every oiling mod known to man, etc) - at Ollie's now
85mm JE pistons @ 9.5:1 CR - have them now
'69S heads; ported by Dick Evelrude - have them now
Twin plugs (still debating which system to use)
DC44 cams (custom grind; .490 lift at both lobes; 102 deg lobe centers) - have them now
Titanium valve retainers - have them now
RARE 47mm 4-bearing cam carriers - have them now
Nickie cylinders - have them now
R&R 3 liter journal rods for 66mm crank
Titanium wrist pins
Cross drilled crank, 66mm crank undergrind to SC bearings
Fresh 930 oil pump, with full race chamfer on the internals by Supertec - have it now
rebuilt 2.4S MFI pump - have it now
52mm>38mm (taper bored) magnesium MFI stacks and match bored and rebuilt TBs - have it now
Lightened '69S flywheel - with Jeff Hines

!!!

so, how many grams do the titanium wrist pins save?

I am in. Nice work and brave man! I need to show my wife this thread so she knows that I am not the only 'crazy man' out there :-D

Quote:

Originally Posted by RWebb (Post 4415864)

!!!

so, how many grams do the titanium wrist pins save?

Between 120g and 150g lighter per pin. Throw that into your calculator for rotational mass at 8000 RPM and you have some serious difference! I don't have the number handy, tho.

Quote:

Originally Posted by mjshira (Post 4415865)

I am in. Nice work and brave man! I need to show my wife this thread so she knows that I am not the only 'crazy man' out there :-D

Don't show my wife this thread! :D

Sounds like a great build. Can't wait to see the crank.

Does this mean you are going custom rod journal size (2"?) and rods to increase the stroke? This is like the "supercrank" from henry?

HMM my wrist pins were 112g each. That must means I would be floating on air. :D

Quote:

Originally Posted by jpnovak (Post 4415915)

HMM my wrist pins were 112g each. That must means I would be floating on air. :D

I clearly have my numbers wrong. :o

These aren't 2" bearings - they are a bit smallish for a non moly crank. I am using the 3 liter journals which are still much smaller than the 66mm crank, but good to go on a steel crank. Henry's moly supercrank is of a material that you could actually use the 1.8" Honda bearings and be fine. Strong stuff.

Wow, how do the Titanium wrist pins avoid the fatigue failure of Titanium rods?

Kenik,

Awesome build, I can't wait to hear it. It should be a screamer.

Sounds like fun....
Subscribed..

Quote:

Originally Posted by kenikh (Post 4415891)

Between 120g and 150g lighter per pin. Throw that into your calculator for rotational mass at 8000 RPM and you have some serious difference! I don't have the number handy, tho.

Thanks much. I put a rev limit on my calculator since it runs out of cam before 8k....

BUT! I like many others can live vicariously thru your threads -- and it is well within my budget to watch.

Mmmmmmmmmmmmmmmmmmm...look what arrived today! Custom George Narbel headers, with longer custom length primaries with ceramic coating. Just what a high strung, small bore motor needs to make mad torque! These are a Rennsport Systems design.

http://forums.pelicanparts.com/uploa...1232042949.jpg
http://forums.pelicanparts.com/uploa...1232042967.jpg
http://forums.pelicanparts.com/uploa...1232042981.jpg

where did you get these headers? How much are they is you don't mind saying?

Hey Man!
Looking GOOD :D

Quote:

Originally Posted by ShakinJoe (Post 4419374)

where did you get these headers? How much are they is you don't mind saying?

Quote:

Originally Posted by kenikh (Post 4419363)

These are a Rennsport Systems design.

;)

Just short of $1400.