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[IMG]i/expressions/face-icon-small-mad.gif[/IMG]Good god man, please use some periods! The flames are going to start soon! [IMG]i/expressions/face-icon-small-mad.gif[/IMG]
Geezuz...
A bypass on the intake and the exhaust side... yeah that is dumb logic.
Yeah, you can pull a T25 off a 2nd gen eclipse, Im the one that mentioned that. Get them off Ebay for around 100 bucks.
No, the less backpressure, the better. That is when talking boosted applications.
Websites: Go to any Turbo manufacturer sites for one, hit yahoo and google up, and start paying attention to what people are saying. I didn't just type that long arse post up because I get off on that kind of thing!
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Yeah, let me emphasize that when I was talking of 10 - 11 psi for the EX and 11 - 12 psi for the LX I was assuming that the stock internals can handle a compression ratio of about 14:1 with only a head gasket change. I also mentioned that the stock internals would probably not handle this much. I just wanted to give everyone an idea of how to calculate the maximum boost pressure for our cars. I don't know where we find out the maximum compression ratio that our cars can run? Maybe ask the people that made the civic concept what compression that thing runs?
wcooper4: Capitalize sentences, end your sentences with a period, use paragraphs. Anyway, I like your idea for a bypass to the turbo. I have been thinking of something like that as well. It would be difficult to implement, but it is possible. The only downside is that both modes of operation would be less efficient since you're making a compomise betwean proper operation of the engine when it's turbocharged and when it's naturally aspirated.
PerfectD3: I know that everyone says that the less backpressure the better when considering a turbo, but I also remember something I heard a while back which makes sense. It's about how the velocity of the exhaust gases depends on how restrictive the exhaust system is in its' dimentional qualities (bends, and sound deadening) and on how fast the exhaust gases cool down. Larger diameter piping means more flow and less restriction, but also means that the exhaust gases will cool down faster and start to slow down. Maybe this isn't such a good thing, even for a turbocharger?
I imagine that the turbo charger turbine wheel gets spun up by the exhaust gases, but if you were to block off the exhuast by putting a banana in the tailpipe, then there would be no flow and the turbine wheel would not spin up. So, therefore... More flow is better. I wonder how much of a factor the cooling of exhaust gases is? Maybe this has already been solved in a way through the experiments of people in 6th gen civics. I remember reading that 2.25" diameter piping for the exhaust system was ideal. What do you guys think?
2.25 is ideal for a NA application. 3" is ideal for FI. Grey, your right, but I wasn't saying that we should have some 6" pipe all the way back. Your right about there is such a thing as too large, and yes I do know all about it. I just didn't feel like explaining it cause there are too many n00bs that would get lost and then I would be repeating myself (kind of like I have been through this entire topic). Yet, if you want, PM and I will explain it for you.
Okay here is my last question about this topic is it better to go single or twin turbo. From what i understand going with two you can use two smaller ones and get more power out of them or do you have to have a dual exaust system in your car for that isnt to sure on the subject just a quick question.
Ok. Twin turbos do spool up alot faster than a single, but unless you have sufficient exhaust flow, they really won't even spool until a high RPM, in other words twin is not optimal and you would have so much lag that it wouldn't even be funny. Even twin turbo cars from the factory are later switched to a single because of the more power you can get from them. Twin turbo production cars have twins because they spool up faster and are mor linear, but these cars have a hell of alot more exhaust rushing through them, and are generally on V6 or Rotaries. Our 4 banger is better off with a single, IMO all 4 bangers are better off with a single.
Alight so for a novice as myself is it better to go and get a turbo out of say a eclipse send it off and get it shot up to a phase 3. have seen that on some web sites for my friends gsx that they can take a turbo and make it better and than ship it back. And than install that in my car. By the way can someone give me some advise on what is the best exaust headers to the muffler best intake. also have one other thing was thinking of just swapping tranny and engine to a rsx or something not too sure about that yet like the idea of a 6 speed.
Joe - If you are refering to me, no. I do not plan to add any perforrmance mods to my car until my warranty expires, all of my dealerships are pircks and will not allow them. My warranty should be up by the end of this year (mileage wise). I do a hell alot of driving and I am assuming it will be over 1.5 years after purchasing the car. I am already sitting at 13500 with only having her for 7 months.
as pinky said earlier, he is going away this weekend and he is off work on monday and he is taking his car in to the shop then to have them make up a manifold for him, he will post pics then at that time.
