Underdog Posted February 4, 2009 Share Posted February 4, 2009 I am content with the information I have. If you aren't convinced, then you set up an experiment. You will need a basic understanding of physics and heat transfer though. I don't feel compelled to quantify the benefit because Subaru engineers have already done that, otherwise they wouldn't have spent a single extra penny to put it into production. The Crimson Dynamo Link to comment Share on other sites More sharing options...
05GT Guru Posted February 4, 2009 Share Posted February 4, 2009 I am content with the information I have. If you aren't convinced, then you set up an experiment. You will need a basic understanding of physics and heat transfer though. I don't feel compelled to quantify the benefit because Subaru engineers have already done that, otherwise they wouldn't have spent a single extra penny to put it into production. Your faith in subaru is overpowering lol Link to comment Share on other sites More sharing options...
Underdog Posted February 4, 2009 Share Posted February 4, 2009 I just know that they are too cheap to put it in for no reason. That, and it makes complete sense that the more cool outside air you can push through the TMIC, the more heat you can remove from the intake air traveling through it. The Crimson Dynamo Link to comment Share on other sites More sharing options...
Coyote_Lips Posted February 4, 2009 Share Posted February 4, 2009 I datalogged my car after i installed my perrin tmic with and without engine cover (because i had to trim it to fit). I did see a difference in IAT on the Cobb AP which is why i did trim the cover to fit. I can probably dig up those logs if you really need to feel better about this. Yup... Link to comment Share on other sites More sharing options...
05GT Guru Posted February 4, 2009 Share Posted February 4, 2009 Its up to you, like i said i dont know one way or the other, i just wanna know lol Link to comment Share on other sites More sharing options...
rao Posted February 4, 2009 Share Posted February 4, 2009 How could the engine cover possible have an effect on the temperature of air coming in from the fenderwell? Rob IF YOU CARE ABOUT YOUR CAR YOU SHOULD NEVER DRIVE IT Link to comment Share on other sites More sharing options...
Coyote_Lips Posted February 4, 2009 Share Posted February 4, 2009 How could the engine cover possible have an effect on the temperature of air coming in from the fenderwell? Good question. Based my decision on the logs. That's all. Yup... Link to comment Share on other sites More sharing options...
Underdog Posted February 4, 2009 Share Posted February 4, 2009 How could the engine cover possible have an effect on the temperature of air coming in from the fenderwell? I found this confusing too. I was under the impression that IAT was measured at the MAF (near airbox) and not post TMIC. The Crimson Dynamo Link to comment Share on other sites More sharing options...
rao Posted February 4, 2009 Share Posted February 4, 2009 It is. Rob IF YOU CARE ABOUT YOUR CAR YOU SHOULD NEVER DRIVE IT Link to comment Share on other sites More sharing options...
Underdog Posted February 4, 2009 Share Posted February 4, 2009 The Crimson Dynamo Link to comment Share on other sites More sharing options...
05GT Guru Posted February 4, 2009 Share Posted February 4, 2009 Well then, forget the logs lol Link to comment Share on other sites More sharing options...
Coyote_Lips Posted February 4, 2009 Share Posted February 4, 2009 There was a difference with and without... but I will concede that there are too many factors in play to place blame solely on the engine cover. I'm still siding with Underdog on this issue though. It does force more air through the intercooler. There is a significant gap without the cover. I didn't notice any butt-dyno power differences though. Yup... Link to comment Share on other sites More sharing options...
ean611 Posted February 4, 2009 Share Posted February 4, 2009 Someone pointed out above that everything has cost. There is NO way Subaru would have spent the money on a part to go under our hood like that if there was no benefit. If taking it out was an improvement, I assure you Subaru wouldn't be installing them and saving the money. All the high HP Subaru's I see with no cover are all FMIC. So if you want to get rid of the cover, get a FMIC. Link to comment Share on other sites More sharing options...
rao Posted February 4, 2009 Share Posted February 4, 2009 The benefit is in the marketing - it makes the engine bay look like more expensive cars. Rob IF YOU CARE ABOUT YOUR CAR YOU SHOULD NEVER DRIVE IT Link to comment Share on other sites More sharing options...
05GT Guru Posted February 4, 2009 Share Posted February 4, 2009 Nobody is saying taking it out makes an improvment, but what im saying is does it make a difference? Alot of cars come with engine covers these days and guess what they dont have intercoolers and they serve no purpose but to make the engine bay look cleaner. Link to comment Share on other sites More sharing options...
Underdog Posted February 4, 2009 Share Posted February 4, 2009 To the OP, the rattle you hear is the water vapor in the intake air turning to ice and hailing in your intake manifold. It's that good. Take off the engine cover, intake temps go up... rattle solved. The Crimson Dynamo Link to comment Share on other sites More sharing options...
05GT Guru Posted February 4, 2009 Share Posted February 4, 2009 No proof of intake temps going up however Just speculation Link to comment Share on other sites More sharing options...
Underdog Posted February 4, 2009 Share Posted February 4, 2009 Well if the rattle goes away, there is your answer. The Crimson Dynamo Link to comment Share on other sites More sharing options...
05GT Guru Posted February 4, 2009 Share Posted February 4, 2009 So your saying the little pieces of ice will just bounce around in the intake manifold until it gets warm enough out side that they melt? lol Link to comment Share on other sites More sharing options...
Underdog Posted February 4, 2009 Share Posted February 4, 2009 :facepalm: The Crimson Dynamo Link to comment Share on other sites More sharing options...
Spec B Posted February 4, 2009 Share Posted February 4, 2009 The benefit is in the marketing - it makes the engine bay look like more expensive cars. There must be some benifit...my wife's 09 FXT has a ridiculous 3-4" rubber/plastic extension from the scoop into the engine cover. Link to comment Share on other sites More sharing options...
Mr. Sinister Posted February 4, 2009 Share Posted February 4, 2009 :facepalm: x 2 Link to comment Share on other sites More sharing options...
Molal24 Posted February 4, 2009 Author Share Posted February 4, 2009 Rao, you said it was the fuel line. You said you used some kind of heater material on it? How you do it? I think that's what my issue is. It's annoying as hell and I refuse using the rear defrost because of it. Link to comment Share on other sites More sharing options...
rao Posted February 4, 2009 Share Posted February 4, 2009 I used some old heater hose that I had lying around - probably 3/4" that I cut so that it would slip over the area that was causing the trouble. Rob IF YOU CARE ABOUT YOUR CAR YOU SHOULD NEVER DRIVE IT Link to comment Share on other sites More sharing options...
Reuben Posted February 5, 2009 Share Posted February 5, 2009 This is why i like old cars better. The bonnet line is low, and the splitter moulds directly to the IC like it should. I HATE and engine bay with useless crap in it. http://i197.photobucket.com/albums/aa208/Pilot_Reuben/GTBs%20Back/enginebay.jpg I also hate the BP/BL turbo/IC/intake manifold setup, if i ever got one, i'd take that shit out and stick the STi ones in. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.