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1969honda

Midnight Madness 560z...

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Pictures is a little deceiving, shows VMP on the foam but it's just the packaging. I had a little cash burning a hole in my pocket and couldn't pass this up at the price offered.

So now that the mass airflow device has been secured I really need to come up with some manifold designs...

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Small but exciting change, found a Harrop TVS 2300 for a really good deal and the m122 is up for sale. Also started collaborating with another VK56 enthusiast and was able to get a great deal on a Stillen lower manifold and upper plenum that should be here tomorrow. Really excited as this will get things rolling on having the blower alignment and intercooler mostly figured out with about half of the original expected fabrication work.

Edited by 1969honda

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Mocked up the Harrop TVS2300 on a Stillen manifold set, also ordered in a water pump, fan pulley, idler pulley and tensioner pulley to start routing the belt. Best part about the stillen lower manifold is they cast in two sets of injector bungs so direct port meth or nitrous down the road will be an easy upgrade!

 

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Edited by 1969honda

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So only update was the purchase of a 1999 mustang GT hydrobooster setup last week.

 

It cost more than I was told upon entering the yard, but was still cheaper than anywhere online or from a parts store. No pics right now, but I'm excited with how much more room it should give the cam cover and cylinder head on the driver's side.

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Decided to change routes a little with the engine, TVS is up for sale and I'm going to go turbo.  The hassle of getting an adapter plate machined, ensuring the manifold mounting surface has good parallelism with the head sealing surface, tensioner bracket, idler pulley placement, etc.... was just to much of an expense and headache.  I should be able to sell the TVS, build a simple intake plate to adapt a turbo intake pipe to the manifold, purchase a turbo and manifolds for less than what the machining and parts was adding up to.  Local adds have an BW S475, S471 and a Turbonetics 76mm for less than 1/2 of what I should get for the TVS.

 

Early reports are that the inexpensive ebay SS shorty headers fit quite well, might also have a line on some JBA shorties with V-bands already added on.  Once the TVS is sold I'll get some other parts coming, or fund the machining and parts to get rods and pistons on the way, or buy a transmission and adapter so that I can get things mounted in the car.... time will tell.

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I like this new direction! I think the turbo is a much better fit for a Z, you need the top end more than down low with these light cars. Same reason I like the Voodoo idea so much. And, I know this guy with a tig that can help out on those fabbed parts...

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I'm actually pretty excited about it as well, been looking into twins in the GT3582 range or a single 76mm setup.  If I've done my math right I should be moving about 76.7lbs/min of air given 85% VE, 20PSI of boost and 6500 RPM redline.   I'm hoping to get things figured out to where it'll still have a good punch without a ton of lag but let the car start moving before it just spins the tires to no end.  We'll see how it goes. 

 

Speaking of that TIG welder I've already drawn up the pieces to adapt an LS1 cable operated throttle body to the aluminum manifold I have, thinking about the Holley Sniper 92mm or 102mm.  They look fairly simple and for about $175 they are definitely a good price compared to a Nick Williams or FAST piece, just haven't seen any real feedback on them, one comment on LS1Tech was that they mirrored some of the cheaper Chinese pieces for quality.  I'll see once I have it all figured out, had to spend a little of my Z money on other ventures today so I'm back to saving mode again, hopefully my buddy that's coming by later this week will have good news on wiring my garage up for 240v.  That would be a huge step forward for me and really open up the possibilities of getting some progress made on my chassis

 

I'm also waiting to here back from a shop that has a Diamond racing piston set all designed and proofed in a formula drift car at 9000+ RPM. Engine makes 800hp NA and is taking a 400 hit of NOS on top of that in the same block I am using.  They are running a JE piston this year according to a promotional video, but the last couple years it's been diamond racing pistons and the machinist really likes the way they seal and hold up better than the JEs.   He said they are modifying LS1 6.125" rods for a better rod to stroke ratio, using a stock stroke billet crankshaft, and a 3.875" bore for better ring selection in their setup.  The cams, heads and timing chain setup are really involved though, cams are a custom JWT set that I could get for the same price they are paying pretty easily ($1200), but the whole timing chain setup is a Menard's design with fixed tensioners, custom guides and some other tweaks.  Talking with a former Nissan racing team development guy none of the valve train would be good for a street car that sees varied RPM and isn't at WOT all the time, there's no real way to react to sudden rpm changes and chain slack in their setup.

 

 

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I'm headed into wiring mode which means better pricing for that stuff. I'll have more free time if I can get this blasted house on track.

 

Twins might package up better. Things are pretty tight down in that tunnel. I'm worried about just the T56 Magnum and two exhaust pipes let alone turbos! Plenty of room up front for intercoolers, etc. What power level are you thinking? It could get crazy in a hurry with a little adjustment to the wastegate.

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Build notes and rough math for my future reference:

 

1. Found out the Titan/Armada bellhousing is ~7.250" (184.15mm) from transmission mating surface to engine mating surface.

 

2. VK56DE crankshaft protrudes into the bellhousing 19.25mm

 

3. 2000 f-body T56 input shaft measures 135.35mm from bellhousing surface to where the pilot bearing meets up with the splines

 

4. So taking the bellhousing depth minus the effective transmission input shaft length I get:

 

184.15mm - 135.35 = 48.8mm

 

Now minus the crankshaft protrusion:

 

48.8mm - 19.25mm = 29.55mm or 1.163"

 

That means I have 29.55mm of space to incorporate a button clutch of some sort of the vk56 flexplate inorder to retain my factory CAS sensor mounting and trigger wheel.

 

Need to find out more info on the retro t56 input shaft that is supposed to be longer for the older Muncie/T10 transmission swaps.

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So machined plate between the bell and trans? If so that will need to be factored in. Pilot bushing/bearing is usually pretty simple to adapt. Often you can mix and match pressure plate and disc to get the correct bolt pattern and splines. Slave will probably be T56 internal and an adjustable height would be nice or we can add spacers if necessary. All doable. We just need to make sure that transmission is exactly concentric with the engine.

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