yeah i thought this way would be better, but on second though, for the reasons that kalus mentioned, this would also have problems. even when the manifold is under vacuum, the turbos are often doing work. therefore if the flow is being diverted around the turbos, then the turbos might be trying to suck air in even though the path is shut. hence it will be harder for the exhaust to turn the turbos, creating greater back pressure and decreasing efficiency.
Sounds like you want you cake and eat it to. Bypassing the turbo's was an idea I was going to add to my first post but the additional hosing required, problems with possibly leakage as well as controlling the actuation made it seem a little over the top. That and the additional lag it would produce but having to spool the turbo's from a complete standstill once you wanted boost. Also with the lower compression ration and rear differentials of a TT you would end up with something that was slower than a Hyundai. You talk about how bad it would be to have an NA yet you want to castrate your TT??
Hmmmm... ...bypassing the turbo aint a bad idea. If you bypass the turbo no need to bypass the IC's two birds and that. But just how would or could you do it? Bypassing exhaust gasses would surely be a serious problem. As for the original idea, a well designed intercooler would have minamal pressure drop. As Chewy said only about 2-3PSI at significant boost, wouldn't it be less at next to no boost? Maybe run the turbos down to where the stock IC's are then you have plenty of room to bypass the turbos. but that's my other dream Cheres,
If you bypass the compressor there is a good possibility that you will cause the turbine to overspeed with disastrous results.....like filling your cats with hot bits of metal.:thumbsdown: The fact that the compressor is always pumping air is a type of governor for the turbine...take it away and more than likely if you go anywhere near high revs that will be the last of your turbo. To get an idea of what I am saying just block the inlet to your vaccuum cleaner and notice the revs increase ...... though vaccuum cleaners arent really state of the art turbines!:LOL: It would be an engineering masterpiece to see how you would fit all the plumbing in! All the best John
The coward is me...'pal'. and the reason I supplied is your posts are confrontational, abusive and disrespectful to someone who has contributed so much to the forum. I VTD'd about 2:30ish this afternoon from Adelaide airport and I've just got home to see the latest and look at the language that has come out since then. Oh, and it's my choice as a member to make that decision, just as it is your choice to piss people off. PS: I think we're all forgetting that as a public forum, we don't all have to "get along" all the time. Everyone is entitled to their opinion...
you could try this funky setup >> You could put four (one for each NA intake and one for each TT intake) air filters down out in front of the oil cooler. You'd need 4 Mass Airflow Sensors and some circuit to work out the average of the 4 Mass Airflow Sensors to send back to the ecu. Most probably better to use a MAP sensor and air temp sensor setup in this case. The NA pipes would be used when the pressure in the NA pipes were greater than the pressure in the TT pipes (after the intercoolers). I have no idea if this would work as I haven't really thought it through much.
Am I missing something here Is there a competition going to try and be VTD candidate? By the way Chili knows a lot about cars and common sense things and he use to surprise me a lot, now I expect him to understand things when we talk. But Chili some don't want to know. Saying goes" Don't try and make pigs sing, it irritates the pig and frustrates you." Not directing this at anyone but hopefully break the ice here as getting hot.
I didnt realize Chili was the sacred cow of aus300zx!.... his thinly disguised contempt for anyone who hasn't put thousands of posts on this site is obvious. I wonder how many of those posts were to detract from others ideas? Maybe someone who has spent so much time on this site is really missing something....a life
You surprise me Shane, or maybe it's BS :LOL: >>> but whatever... it's amaZing what a difference it makes when ppl SPEAK their minds rather than POST anonymous VTD's on every post. Despite David's 'innapropriate' POSTS & PM it would seem this thread finally has some life (before death by mods). It's a learning curve for 'newbies' ... can't we be a bit more tolerant?
Chili not a 'sacred cow' but he's been likened to Shrek OK. We all have a point to make. I think K-Zed put it best when he said that when people should post their replies rather than VTD without an 'explanation' as it stirs up all sort of innuendo ... so that's good feedback I'll take on board. Let's just agree to disagree, David. I have a lot of time for Chili and know that once you bother to get to know him, you'll find an enormous amount of info, care and interest in zeds and zedders in general. Of course sometimes his 'ornery exterior' can detract newbies from ever bothering to get to know him and that's a pity... PS: That's where the affectionate 'shrek' tag started (peel back the layers etc etc) Anyway he knows what I mean :thumbsup: He even has his own 'guage' here on the forum!
I don't need to send a "please explain".....>> I can see the multiple votes by multiple members and all the resosns they gave. I agree with most of them, but even if I disagreed it wouldn't matter as the member has the right to exercise their right to VTD.
I understand what you are saying but what I was getting at was, once you have bypassed the IC and pipework the air that remains in there stops moving. Once your flap v/v opens the IC and pipe work up again all the stationary air inside has to start moving again. This all takes time. regards bollie7
