zbloke Posted March 5, 2012 Share Posted March 5, 2012 I'd look forward to the adaptation to the stock L-Gata SOHC configuration! Did the OS guys give any indication of when this might happen? Quote Link to comment Share on other sites More sharing options...
texis30O Posted March 6, 2012 Share Posted March 6, 2012 With all that money spent on the head configuration, and no plug on coil? The HP numbers are great .... But low torque. Tony thanks for the pics, I am jealous that you have such great access to the show and shops. Quote Link to comment Share on other sites More sharing options...
zero Posted March 6, 2012 Share Posted March 6, 2012 The HP numbers are great .... But low torque. I'm gonna go out on a limb and say that ~300lbft is about as much torque as any NA 3.2l is making. Off the top of my head I can't think of any even modern engine making more. That works out to a BMEP of 223psi or 15.3 bar! If those numbers are correct that's outrageous. Those are top level, big money racing engine numbers(which I suppose makes sense because this, to my dismay, is likely a big money engine...) That said, 289lbft at 8000rpm works out to more than 420hp. Quote Link to comment Share on other sites More sharing options...
johnc Posted March 6, 2012 Share Posted March 6, 2012 My racing 3L with 13.6 to 1 CR made 275 ft. lbs. and it was built as a flat torque curve L6. 300 ft. lbs. is pretty frickin' good! Quote Link to comment Share on other sites More sharing options...
Gollum Posted March 6, 2012 Share Posted March 6, 2012 Torque will ALWAYS be directly tied to displacement in NA applications. F1 motors can make 1000+hp from 3 liters, yet their torque isn't as amazing of a figure. For example, the 2006 Toyota RVX-06 Forumula 1 engine was reported to produce 202 ft lbs of torque, while making 740HP. To a racer, peak torque figures are rarely a huge concern. Torque curve IS. I'd readily sacrifice the extra difference between the OS head and the 3 liter John just mentioned, if the engine makes that torque for a wider RPM range. That said I'm sure the OS head will make plenty of broad torque, I'm just saying in general a nice fat torque curve is more important than a blip on the dyno plot if you're concerned about lap times. Quote Link to comment Share on other sites More sharing options...
Tony D Posted March 6, 2012 Share Posted March 6, 2012 F1? Like the 1785HP engines in the 1.5 liter formula in the early 80's? Quote Link to comment Share on other sites More sharing options...
Leon Posted March 7, 2012 Share Posted March 7, 2012 F1? Like the 1785HP engines in the 1.5 liter formula in the early 80's? C'mon Tony, that's cheating! Quote Link to comment Share on other sites More sharing options...
roger280zx Posted March 7, 2012 Share Posted March 7, 2012 We are talking NA torque. Boost is always a torque maker. Nice pics from Tony, can't wait to hear more about this one! Quote Link to comment Share on other sites More sharing options...
Gollum Posted March 7, 2012 Share Posted March 7, 2012 F1? Like the 1785HP engines in the 1.5 liter formula in the early 80's? I like how you don't disagree with me, just pick at what I said. We're so just a bunch of kids with legos. Quote Link to comment Share on other sites More sharing options...
PMC raceengines Posted March 7, 2012 Share Posted March 7, 2012 Works out to the same torque per L as a ford BDG twin cam and BDA . and there torque cerve is very flat 94fp per L is as good as it gets in the real world .... and the best L searies on my dyno made 85fp per L Quote Link to comment Share on other sites More sharing options...
Tony D Posted March 7, 2012 Share Posted March 7, 2012 (edited) I knew someone in Service Group for Ford back in the late 70's when there was a BDA put into a older Capri. They would give it to secretaries to run errands with because they always shifted before big power was even close. Then a bunch of fat White engineers in White shirts and ties with the requisite "Falling Down" glasses would pile in and go looking for muscle on Woodward. Thing had some ridiculous gearset out back and if you matted it and held it there when the power hit... Standard truck was to short shift just before the cam came on, then take 2nd to 12,000. As he said: "Man, that thing was a hoot to drive!" I wonder what happened to it? TimZ??? Edited March 7, 2012 by Tony D Quote Link to comment Share on other sites More sharing options...
Gollum Posted March 7, 2012 Share Posted March 7, 2012 And since we're jacking this thread, one of the coolest aspects (I think) of peak torque for a given engine is that it doesn't really require the most amazing head. You can usually reach 80+ torque per liter if you have a well matched system to the head you have, and tune it all for the RPM at which those heads do their best work. There's plenty of pushrod V8's that show this wonderfully, where it doesn't take much to get a well put together 302 ford to put out 400+ ft lbs on the engine dyno. Now getting the torque to peak like that at 8k and beyond, that's a whole nother matter... Quote Link to comment Share on other sites More sharing options...
BLOZ UP Posted March 8, 2012 Share Posted March 8, 2012 Where's my OS Giken VG30E head? Quote Link to comment Share on other sites More sharing options...
Gollum Posted March 8, 2012 Share Posted March 8, 2012 Where's my OS Giken VG30E head? On the Z32 you silly. Quote Link to comment Share on other sites More sharing options...
BLOZ UP Posted March 8, 2012 Share Posted March 8, 2012 (edited) I knew someone was going to say that! Where's my *chain driven* dohc head? VQ? Edited March 8, 2012 by BLOZ UP Quote Link to comment Share on other sites More sharing options...
johnc Posted March 9, 2012 Share Posted March 9, 2012 Here's the sales brochure: http://www.osgiken.co.jp/tc24/tc24.pdf Quote Link to comment Share on other sites More sharing options...
Tony D Posted March 9, 2012 Share Posted March 9, 2012 I got a coupla those brochures! Quote Link to comment Share on other sites More sharing options...
Joeoski Posted March 12, 2012 Share Posted March 12, 2012 (edited) I heard that a gear drive setup give some hp virus the chain but that person that told me about and claims to have built there own gear drivers for a L4 and L6 , That persons name is Tim and he said that a 240Z in Reno has on of his Gear drives in it the extra power a gear drive adds is 92 hp i was told by Tim . Edited March 12, 2012 by Joeoski Quote Link to comment Share on other sites More sharing options...
Tony D Posted March 12, 2012 Share Posted March 12, 2012 No Quote Link to comment Share on other sites More sharing options...
Jordon Posted March 12, 2012 Share Posted March 12, 2012 Hey Guys, Does Anyone Have a rough Idea On Cost or timeframe for this to be avaliable? Or Will this end up beaing as rare as the old head That would be a sad day. Quote Link to comment Share on other sites More sharing options...
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