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| Tofuball's '94 XFi; It's all about city MPG | |
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| Tweet Topic Started: Mar 12 2011, 08:59 AM (39,444 Views) | |
| Tofuball | Mar 29 2011, 09:17 AM Post #76 |
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Strange Mechanic
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True, but I'm not always doing the same commute, sometimes I'm on the highway. Coolant heater sounds good, it's in the plans, low on the list though. |
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| 944door | Mar 29 2011, 09:39 AM Post #77 |
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Have you started the tear down yet? |
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| Tofuball | Mar 29 2011, 10:27 AM Post #78 |
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Strange Mechanic
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What tear down? There is nothing to tear down
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| nerys | Mar 29 2011, 11:06 AM Post #79 |
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Grr
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Move it up to the top of or near the top of your list then. its CHEAP extremely EASY to install (20 minutes) and should net you immediate results in both fuel economy AND engine lifespan (IE easier on your engine) its an under $40 upgrade and especially useful for your typical short commute. when on the highway how do you drive? |
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| Tofuball | Mar 29 2011, 11:22 AM Post #80 |
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Strange Mechanic
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I was thinking of doing an oil heater, or just running a flexible heating element through the block or somesuch. I'm still toying with ideas for getting rid of the cooling system (using oil to cool the engine), but that is less likely. Edited by Tofuball, Mar 29 2011, 11:22 AM.
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| mcmancuso | Mar 29 2011, 12:21 PM Post #81 |
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Water carries heat MUCH better than oil, you may have overheating issues if you change to oil cooling... Project is looking good so far. Are you planning on a MPGuino or such in the project? I've jumped my city MPG trip average to 50+MPG thanks to the ability to get instant feedback on driving techniques. |
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| Tofuball | Mar 29 2011, 01:15 PM Post #82 |
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Strange Mechanic
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I've got an MPGuino I am aware of oil's inability to cool well, however our vehicles don't exactly need a lot of cooling . . . |
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| Tofuball | Mar 31 2011, 12:23 AM Post #83 |
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Strange Mechanic
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My new T3 manifold has arrived!![]() Lets strip it down . . . ![]() And introduce it to . . . THE DIP (DONT get this stuff on your hands) ![]() Now it's time to show the fuel rail a little love so it wont punish the injectors with derbies . . . (.45 if anyone is wondering) ![]() Some silver paint . . . ![]() Allright, that's it for the night!
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| Tofuball | Mar 31 2011, 12:27 AM Post #84 |
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Strange Mechanic
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Bonus information: Did you know the T3, unlike the Sprint, has NO provision for an EGR whatsoever? Also, can anyone tell me what those little brass tubes right next to the intake valves are? (I'd post a pic but the head is in the shop) Some sort of air injection? Where do they get their air from? I guess I'll find out when I take mine apart if no one knows. I should see if I should add some sort of EGR, or give it up entirely and make some sort of adjustable, warm air / cold air intake. Edited by Tofuball, Mar 31 2011, 06:30 AM.
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| mcmancuso | Mar 31 2011, 11:40 AM Post #85 |
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The little brass tubes go through to the intake runner, the idea with them is to induce swirl to the air going into the intake valve, 3tech has noted (on teamswift) they are an impediment to air flow into the intake and usually removes them on his head work. |
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| Tofuball | Mar 31 2011, 12:17 PM Post #86 |
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Strange Mechanic
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Peak flow doesn't matter to me - I'm wondering why the OEM put them there . . . If it helps with MPG, then by all means they stay. If not, then they shall be removed. Perhaps they will help up until the insight injectors are installed. Any idea where their air supply is from? |
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| mcmancuso | Mar 31 2011, 12:28 PM Post #87 |
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I'm pretty sure its the little holes in the head below the big intake runner holes. |
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| Tofuball | Mar 31 2011, 12:32 PM Post #88 |
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Strange Mechanic
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Obviously, but I don't know what supplies those
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| mcmancuso | Mar 31 2011, 12:42 PM Post #89 |
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the matching little holes in the intake manifold? |
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| mcmancuso | Mar 31 2011, 12:43 PM Post #90 |
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IIRC, its just T's into the intake runner somewhere along its length |
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