The old timers keep on telling me I have it backwards, pfft, what do they know 
Posted by mellow65
Jeff McMillen Mega Moderator Location: Seattle Join Date: 12/15/2011 Age: Possibly Wise Posts: 36 Rally Car: 87 Subaru RX |
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Oliver Klozoff Mega Moderator Location: Oregon Join Date: 09/10/2008 Age: Midlife Crisis Posts: 480 Rally Car: Nada |
Heres just a random engine bay shot while I was out figuring out how to still make my headlight go up and down.
It all fits in there quite nicely. Used a stock shorty rx7 radiator and Subaru fan. That's also a legacy booster and master cylinder. Just molding of 2 worlds. 
 "Rally racing makes a heroin addiction look like a vague craving for something salty" |
Alex Staidle Professional Moderator Location: Δx = ħ/2Δp Join Date: 08/21/2009 Age: Settling Down Posts: 1,719 Rally Car: Various Heaps |
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Oliver Klozoff Mega Moderator Location: Oregon Join Date: 09/10/2008 Age: Midlife Crisis Posts: 480 Rally Car: Nada |
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Banned Elite Moderator Location: the end of the universe Join Date: 02/12/2006 Age: Ancient Posts: 1,432 Rally Car: 1980 Opel Ascona B |
That's what Andrew Havas did. 
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Oliver Klozoff Mega Moderator Location: Oregon Join Date: 09/10/2008 Age: Midlife Crisis Posts: 480 Rally Car: Nada |
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John Vanlandingham Mega Moderator Location: Ford Asylum, Sleezattle, WA Join Date: 12/20/2005 Age: Fossilized Posts: 14,152 Rally Car: Saab 96 V4 |
Come on a rotary has a whole huge pile of steel inside and iron housings, 2 of 'em, Subaru has this tiny little cast iron crank with little 6mm thick counterweights and wimpy ass 130,5mm rods and 23mm pins and thats it inside for steel (aside from some tiny valves and springs and retainers OOoooo). X volume of mostly aluminum and a few spindly pieces of iron and steel vs a whole lot of BIG iron and steel parts...of similar volume...., come on the Subie thing has to be a whole lot lighter---a LOT. Its like Ford guys saying the 2,3 SOHC weighs the "same" as a big iron V8....with bigger crank, with 4 more rods, 4 more pistons which are bigger, another lump of iron for a head and essentially most of another block, also made of iron, and sometimes even a big wide IRON intake manifold, and 2 exhaust manifolds... Logic doesn't apply when boys sit down to the keyboard. John Vanlandingham Sleezattle, WA, USA Vive le Prole-le-ralliat www.rallyrace.net/jvab CALL +1 206 431-9696 Remember! Pacific Standard Time is 3 hours behind Eastern Standard Time. |
Sean Medcroft Infallible Moderator Location: Edmonds, Washington Join Date: 02/12/2009 Age: Possibly Wise Posts: 1,802 Rally Car: Building a Merkur |
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Infallible Moderator Join Date: 09/22/2010 Age: Midlife Crisis Posts: 336 Rally Car: No rally car yet |
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Oliver Klozoff Mega Moderator Location: Oregon Join Date: 09/10/2008 Age: Midlife Crisis Posts: 480 Rally Car: Nada |
Man don't worry about it, clearly it's not changing what I'm doing.
"Rally racing makes a heroin addiction look like a vague craving for something salty" |
Infallible Moderator Join Date: 09/22/2010 Age: Midlife Crisis Posts: 336 Rally Car: No rally car yet |
Shhh, we're having a srs intarnet argument!!one!
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Oliver Klozoff Mega Moderator Location: Oregon Join Date: 09/10/2008 Age: Midlife Crisis Posts: 480 Rally Car: Nada |
Well fine then, go freeze your ass off and find us some real numbers.
"Rally racing makes a heroin addiction look like a vague craving for something salty" |
Alex Staidle Professional Moderator Location: Δx = ħ/2Δp Join Date: 08/21/2009 Age: Settling Down Posts: 1,719 Rally Car: Various Heaps |
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Pete Remner Infallible Moderator Location: Cleveland, Ohio Join Date: 01/11/2006 Age: Midlife Crisis Posts: 2,022 |
Exactly. The rotary may be small, but it's DENSE. No big airspace inside like in a piston engine, it's all iron and tiny air gaps and maybe a few slivers of really expensive aluminum.
Well, you may be right when it comes to normal V8s, but the *5.0* engine (not the 302, they are different) was an exercise in how much weight can be removed from an engine and still allow it to run, mostly. They went to a huge external imbalance just so they could remove a bunch of weight off the counterweights of the crank (and the cranks still break). The engine block is thinwall struts holding the main bearings to the deck surfaces and not much in between. Boring any more than .030 is iffy, the blocks warp and stretch, and they quite literally split down the middle at torque levels that a 2.3 would laugh at. The weak spot isn't the stock compressed-cheese rods or the cast pistons, it's the block itself... Pete Remner Cleveland, Ohio 1984 RX-7 (rallycross thing) 1978 Silence is golden, but duct tape is silver. Edited 1 time(s). Last edit at 01/19/2012 07:25AM by Pete. |
Alex Staidle Professional Moderator Location: Δx = ħ/2Δp Join Date: 08/21/2009 Age: Settling Down Posts: 1,719 Rally Car: Various Heaps |
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