duffymahoney
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Everything posted by duffymahoney
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DIY Home Built Vapor Blasting/ Honing Cabinet , wetblasting
duffymahoney replied to duffymahoney's topic in SHOP TALK
They will regret selling that cabinet. It’s a giant pile of trash.- 126 replies
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- hydroblasting
- makealuminumsparkle
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DIY Home Built Vapor Blasting/ Honing Cabinet , wetblasting
duffymahoney replied to duffymahoney's topic in SHOP TALK
Someone copied my design and is selling it. -
E31 is back from final surfacing! Vapor blasting it was tedious. But results are awesome.
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Well this bosch and all bosch IACs of this style let a ton of air by when closed. Bosch said roughly 30-35%. Which makes the butterflys useless at idle. My next iac will be a ford. Which closes all the way and only lets a tiny bit of air by.
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Fully wired. I was able to use the coil wiring and leave original wires intact for my dpo negative trigger and positive.
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Very true, but it skews the data massively.
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Amount infected is such a bull**** number, they won't even test here unless you have over a 101 fever and have shortness of breath/ trouble breathing.
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My restaurant will most likely close tomorrow. I’m terrified:)
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Well ITB with IAC and PCV is all in and plumbed. Only thing left is 2 wires and some software changes. Pretty happy with how it all turned out.
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I live in the middle of nowhere / paradise:) 3/8 NPT is in. Next is pcv. The 3/8 was stressful
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My decision on iac location. I can use the stock 12v + from the coil and also the coil negative wiring for the iac connected to my haltech. So wiring will stay the same.
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I got pretty far on the intake. I figured out my basic plan. I also tig welded the old holes and drilled and tapped new ones. So they are centered better. I tapped all existing holes for npt plugs. I also drilled each runner to 9mm. I bought a bspt 1/4 for the stock pcv fitting. Also a 5/8 hose Barb by 3/8 npt brass for the iac. I also had my stacks turned down to fit some cheap filters. Brass or no brass?
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ITB with IAC and pcv here I come. Which mount looks better. Stock coil mount or the rubber one? Rubber one looks lower profile.
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Balance bar cap is done
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I’m not going to rattle can my new stroker block. So I need a color code off something. The alternator bracket seemed like the best choice for still have original paint and be something I can easily take off. I found another that was plated to replace it. This is the last grimy thing on my original motor. I will have a ppg shop scan it next week. It’s darker blue then I would have guessed.
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Iac balance bar is looking good. Next is having it cut.
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Stroker Diesel crank is back from marine crankshaft! Offset ground to 84.6mm Toyota rod ends 1.8896” Ground main journals to -020” Dynamic balance Ion plasma nitride, straighten and micro polished.
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Diesel Stroker crank. Extra offset ground for toyota rods. I will have full details tomorrow. I had the work done at marine crank.
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He is a Z enthusiast. Plus a racer, plus a engine builder, plus hobby guy. Super nice.
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Mad Greek Racing's shop.
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Starting cam mock up. I’m using the bonk .535 cam.
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Here is my flow testing data Datsun Flow Testing Data.xlsx Duffys E31 Flow Testing 63" Static 15" Static 63 Degree Shop 45 Intake Valves 36.5Exhaust Valves DSI Big Valves LIFT Manometer CFM LIFT Manometer CFM Porting By Andrew Kazanis of Mad Greek 0.05 50 35 0.05 14 35 Date: 2/22/2020 0.1 45.25 60 0.1 13 55 0.15 41.75 90 0.15 12.1 80 0.2 36.5 125 0.2 11.5 95 0.25 33 140 0.25 11 115 0.3 31 160 0.3 10.7 125 0.35 27 190 0.35 10.5 130 0.4 23 220 0.4 10.3 135 0.45 21.5 235 0.45 10.1 145 0.5 21 235 0.5 10.1 145 0.55 21.2 230 0.55 10.1 145 0.6 27 190 0.6 10 150
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So smooth
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Data is back! She flows pretty darn well.
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Datsun Spirit valves are in my E31! Next is flow testing. Thanks for all the help Andrew Kazanis Details: New guides, bronze guide liners, reamed to size, seats cut, three broken studs removed.
