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Midnitz

LD28 VO7 crank found!!

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Gentlemen, I have decided to commence a project to build a 3.1 stroker for my 280z.

 

After emailing numerous people and finding all have been sold, I searched the picknpull site and found maximas of the right year

and when I went to check one in San Jose....I found one equipped with a diesel engine!!!

 

A coworker and I spent the morning pulling the engine and removing tons of parts to get the oil pan off....

 

All of the bearings looked good....the dry film lube on the bearings was still present and no copper visible.

 

The only copper visible was the center main bearing thrust surfaces....but the wear indicators were far from bottomed out....so the crank is in excellent shape!!!

 

Now off to the crank specialists for lightening, knife edging counterweights, cryo process as well a balancing with the rotating assy.

 

Planned for rotating assy are:

New Pauter Rods

Ross dished pistons for turbo charging

Total seal piston rings

stock 280z harmonic balancer

lightened flywheel from MSA

 

Stage three ported N42 head with welded and reworked exhaust ports, ferrea valves and a custom grind camshaft.

Stage 3 ported N42 intake

 

Modified Spearco intercooler (all intake and intercooler and impeller side of the turbo are TLTD coated for thermal dispersion)

 

ECU = Haltech

 

Injectors TBD

 

Turbocharger: Single T3/T4 ceramic bearing turbocharger with custom built and coated header

 

I will post pics from time to time showing progress.

post-3775-003711000 1281754933_thumb.jpg

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Nice harvest!! I'm actually about 2 steps ahead of you (minus the Pauter rods). Got the crank back, new Nissan bearings, JE custom dished pistons with 35.1mm pin height for stroker turbo (no need for 2mm HG) 240 9mm rods, shotpeened and balanced and bushed for full floating pins. De-flashed the block and painted with Glyptal. P90 w/full race port, custom Delta Cams turbo grind. ARP hardware throughout. Just about to start assembly. Will be documenting the whole build process as well. Glad to see another turbo stroker in the making - congrats!!

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Nice harvest!! I'm actually about 2 steps ahead of you (minus the Pauter rods). Got the crank back, new Nissan bearings, JE custom dished pistons with 35.1mm pin height for stroker turbo (no need for 2mm HG) 240 9mm rods, shotpeened and balanced and bushed for full floating pins. De-flashed the block and painted with Glyptal. P90 w/full race port, custom Delta Cams turbo grind. ARP hardware throughout. Just about to start assembly. Will be documenting the whole build process as well. Glad to see another turbo stroker in the making - congrats!!

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Thanks for the good comments.....I may be interested in doing something different. Seems we're all stuck with a 3.1 or 3.2L stroker and that seems to be about as far as we can take it using stock parts....

 

I am curious to see if I could fit a custom ground forging with an even larger stroke (plus 5-8mm more).....anybody know of clearance issues? I think I may have to mock one up and spec my own design of crank....using the VO7 as a measurement sample.

 

At $2600 for each crankshaft...I want to get it right. Bore skirt and block sidewall clearance grinding are ok so long as they are minimized.

 

*curious*

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---------------------------

Thanks for the good comments.....I may be interested in doing something different. Seems we're all stuck with a 3.1 or 3.2L stroker and that seems to be about as far as we can take it using stock parts....

 

I am curious to see if I could fit a custom ground forging with an even larger stroke (plus 5-8mm more).....anybody know of clearance issues? I think I may have to mock one up and spec my own design of crank....using the VO7 as a measurement sample.

 

At $2600 for each crankshaft...I want to get it right. Bore skirt and block sidewall clearance grinding are ok so long as they are minimized.

 

*curious*

Midnitz, I sent you a PM.

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