Subject	Injectors on the exhuast side has been proven in newer cars.
Posted by	coma_ass on November 05, 2014 at 2:39 PM
	This message has been viewed 397 times.
In Reply To	I keep thinking about it too. posted by BlackholeZ on November 05, 2014 at 01:51 AM
Message	Take the Mazda Skyactive engine. It is running around 13:1 compression ratio on 87 octane fuel without detonation. They contribute part of that to the fact they control combustion chamber temps better. The hottest part of a combustion chamber is near the exhaust ports, when fuel is injected there it cools the cylinder better. If fuel is partially injected early not only does it atomize better, but it flashes (instantly evaporates through enthalpy) and creates a vacuum for better air intake. "Being forgotten is worse than death" "The penguines are slowly, but surely stealing my sanity"...."sprinkles" "The ricer isle is equivalent to the feminine hygiene product isle in the grocery store...real men just don't belong there." BradZ (FL) "That’s like buying a car and having them hand you a fucking wrench with the keys. Like YEAH WE KNOW THIS MOTHERFUCKER’S GOING TO EXPLODE AND BE SPREAD ACROSS EIGHT LANES AS SOON AS YOU HIT THE GAS, BUT SHIT, WE GAVE YOU A WRENCH, SO BE COOL."
Follow Ups	SZR: If Volvo's latest tech could be applied to the VG... - OverZealous (CT) 22:48:57 11/03/14 I'm planning on getting the new xc90, looks great and love - toykoz32 23:09:39 11/03/14 My wife has a 2010 XC60 T6, that thing is frigin slick - dTb 23:10:41 11/06/14 While it would be nice - BlackholeZ 02:45:37 11/04/14 Agreed. We are still reinventing the 25 year-old wheel, lol. - ZXoltan 02:50:29 11/04/14 Just look at the GTR, its torque curve it massive - BlackholeZ 12:59:10 11/04/14 The cylinder heads on the GTR flow air so much better than - MixManMash 17:13:11 11/04/14 Exactly - BlackholeZ 01:46:31 11/05/14 I talked with Mitch about making bearings similar to - LivinTheDream 15:57:38 11/04/14 Seems like Volvo's pursuit of lag-less forced induction - bartz32tt 08:57:39 11/04/14 Implementing Variable Area Turbines is not straight forward - OverZealous (CT) 19:26:07 11/04/14 If someone came out with DI cylinder heads for the VG... - -Grimm- 10:17:09 11/04/14 Actually, you would be better to get a VQ35DE from - MixManMash 17:20:16 11/04/14 AAM looks a little expensive but who knows. Good luck! (n/m) - OverZealous (CT) 19:15:39 11/04/14 Not really, considering they give you a map to run, - MixManMash 20:20:16 11/04/14 Don't forget tunning. - coma_ass 17:48:19 11/04/14 Absolutely! - OverZealous (CT) 18:56:48 11/04/14 DI tuning isn't that much more complex than port injectors - dogpile 19:17:50 11/04/14 Doesn't the FRS/BRZ also use port injection? On DI engines, - MixManMash 07:00:28 11/05/14 Yes and yes. I have the stock DIs in mine, and ID1000s PIs. - dogpile 07:18:41 11/05/14 I guess I should clarify (and correct) a bit. - dogpile 07:28:49 11/05/14 Thanks for the explanation. (n/m) - MixManMash 07:23:04 11/06/14 Re: If someone came out with DI cylinder heads for the VG... - Bad Fish 18:24:49 11/04/14 It's all in the head casting, no doubt. - bartz32tt 07:22:47 11/05/14 I think you're right Grimm - OverZealous (CT) 18:59:34 11/04/14 I keep thinking about it too. - BlackholeZ 01:51:38 11/05/14 Next time I'm at Norwood's I'll get a picture of the heads - dogpile 07:59:52 11/05/14 Holy overkill batman - BlackholeZ 22:05:46 11/05/14 Bob Norwood is the very definition of severe overkill. - dogpile 08:12:46 11/06/14 Sounds like we need to dispatch a photographer... (n/m) - BlackholeZ 13:50:12 11/06/14 I tried the 1st time I was ever there. - dogpile 19:25:43 11/06/14 Injectors on the exhuast side has been proven in newer cars. - coma_ass 14:39:29 11/05/14 Here's what Brett D had to say when I asked about it: - bartz32tt 09:03:16 11/05/14 I cant see it happening either - -Grimm- 09:33:30 11/05/14 Right. Total engine swap is a much better solution. (n/m) - OverZealous (CT) 15:14:51 11/05/14 All that and we'd still be stuck with our tiny ports - BlackholeZ 21:36:31 11/05/14 I'd love to see an aluminum block for the VG30 first. - flashstar 16:18:28 11/05/14 And you're willing to spend how much for an Al block? - ZXoltan 06:07:19 11/06/14 Ive been researching this path for myself... - -Grimm- 14:01:21 11/06/14 An aluminum block is worth $1500+ to me. $1000+ for an - flashstar 15:33:31 11/06/14 What's the downside with Al block? (n/m) - OverZealous (CT) 20:59:24 11/06/14 Old designs tended to warp under high-stress conditions - flashstar 02:42:30 11/07/14 well duhh, it would be game changing - LJZTT 14:41:50 11/06/14 Yeah. *feeling like a dinosaur* - OverZealous (CT) 20:56:56 11/06/14 Good ports, excellent intake/exhaust flow, turbo sizing - BlackholeZ 14:07:19 11/07/14 Re: Good ports, excellent intake/exhaust flow, turbo sizing - OverZealous (CT) 21:34:21 11/07/14
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