What's my 600 HP in a 912?

[wkrtsm]

Since my 912 is no longer a 912, because it now has

• SWB-to-LWB (911 '69-71 steel trailing arms)
• 934 transaxle
• Elephant coilovers with Bilstein 911 S struts, GT3 front suspension, Boxter brake upgrade, monoball trailing arm bushings
• Tarrett's 935 spring plates and monoball camber plates
• 6-8 month "welding party" for shock towers, spring plate mounts, trailing arm mounts, camber plate housing, secondary engine mounts, fuel cell mount tabs, radiator V-plate, mods for GT3 subframe installation
• 930 turbo fender flares
• 1973 RSR 2.8 composite front & rear bumpers
• Speedhut gauge upgrade
• WEVO 930 shifter
• MOMO steering wheel

about the only thing that's 912 are the new wheel bearings, new steering box, rebuilt upper steering shaft joints.

The powerplant is a new 430 HP 6.2L LS3, for which I pulled and drove the heads to TSP (Texas Speed) and got CNC of ports & chambers, double valve springs, titanium retainers. I also personally installed a TSP stage 2 cam and Comp trunnion kit (needle bearings for rocker arms). TSP said they dyno'd new engines with what I did and results are 580-590 HP. (fyi - cam upgrades place significantly more stress-travel on valve components, so everything needs to be upgraded.)

The build link is here

Pic below shows the final engine prep:



Installing the stage 2 cam with Lucas green assembly lube:



Rocker arms with Comp trunnion kits installed:

[dtakenname]

Thanks, Subscribed.

What do you think your rpm going to be in top gear at 60mp/hr?

[wkrtsm]

Originally Posted by dtakenname

Thanks, Subscribed.

What do you think your rpm going to be in top gear at 60mp/hr?

It's about just what I thought, near 2000 rpm. 3rd and 4th gear in 930 transaxles are essentially overdrive. I could easily do 80-90 mph in first gear getting on the freeway.

[Yan2947]

Just read through your build link above. Great work. Can't wait to see more progress. Are you going to use one radiator up front?

[jkkarrow]

Great work. Look forward to more pictures upon completion ..

[jmd88]

sweet build, pics of the car itself?

[Cairo94507]

Excellent; will watch for updates. Love the LS motor.