Alex Posted August 22, 2001 Share Posted August 22, 2001 Probably been day dreaming again and not listening but here goes. Ok, we know that the bigger the intercooler the more lag you CAN suffer. So, is the problem overcome if you either. 1) Have a very big bore entry point into the intercooler and a very large pipe leading to it with a very big air filter on the end. 2) Have a full twin entry system into the Intercooler (two fully seperated pipes running in parallel into the intercooler) and two normal sized hard pipes leading to standard Induction heads. I realise that this would require a new custom made intercooler. but would the extra air flow, hypathetically, bypass the extra lag you would normally associate with the larger intercoolers. Just a thought. I dunno me and my hypotheticals! Laters Or would I then just spoil the intercooler and not allow it to do the job its intended for. Quote Link to comment Share on other sites More sharing options...
Branners Posted August 22, 2001 Share Posted August 22, 2001 I believe the lag relates to the time taken to pressurise the whole instake system. I think on the big list they said its like trying to blow up a crisp packet compared to a dustbin bag, takes lots more air to get them up to the same pressure. So no matter what you do about pipework its still becomes a question of how much air it takes to 'fill' the whole instake system. JB Quote Link to comment Share on other sites More sharing options...
Alex Posted August 22, 2001 Author Share Posted August 22, 2001 So if I double the "potential" air flow from the outside world I'm on to a winner! Right get me a hack saw, couple of drain pipes and some foam.... oh and an Intercooler.. Quote Link to comment Share on other sites More sharing options...
Branners Posted August 22, 2001 Share Posted August 22, 2001 but it then becomes a question of how much air your turbos can push through the system so you need to add a bigger compressor wheel to flow more air. ahhh if only it was that simple... JB Quote Link to comment Share on other sites More sharing options...
Paul Booth Posted August 22, 2001 Share Posted August 22, 2001 Well, until Ash tells us the formula, I understand it's something to do with the P/V ratio, i.e., if you can supply air at a particular rate and you know the volume then you can calculate the time to achieve any pressure. So if you increase the volume and don't change the air supply then it will take longer to achieve the same pressure. To maintain the status quo (don't go there), if you change one parameter you have to change another to maintain the same P/V end-point. So you could compare blowing up a bin-bag as opposed to blowing up a crisp bag. (Edited by Paul Booth at 2:58 pm on Aug. 22, 2001) Quote Link to comment Share on other sites More sharing options...
Alex Posted August 22, 2001 Author Share Posted August 22, 2001 Check out Phil's posts count, Mr. devil are we???? Phil don't make another post for a while please.... just so as people don't think I'm mad! As for the subject I'm now lost in all your jargon. Was it a good idea or not. I''m pointing the induction kits at the air flow like a big scoop. So at speed it must add something. Yes? Not saying it will help from a standing start. Yey or Ney? Quote Link to comment Share on other sites More sharing options...
Paul Booth Posted August 22, 2001 Share Posted August 22, 2001 Well it must have *some* effect but I bet you can't measure it on a Supra. Quote Link to comment Share on other sites More sharing options...
matt Posted August 22, 2001 Share Posted August 22, 2001 Quote: from Alex Holdroyd on 2:19 pm on Aug. 22, 2001[br]Probably been day dreaming again and not listening but here goes. Ok, we know that the bigger the intercooler the more lag you CAN suffer. So, is the problem overcome if you either. 1) Have a very big bore entry point into the intercooler and a very large pipe leading to it with a very big air filter on the end. Errrrrrr ........ surely shum mistake....... The turbos have 2 be in there between the filter and the ic ........:wink: so ya would need big twins( ie True Twin Turbo, not sequential).for the twin entry..............now its gettin very expensive............... but hey its yo money!! Quote Link to comment Share on other sites More sharing options...
Guest Ash Posted August 22, 2001 Share Posted August 22, 2001 Yep, Paul got it in one. Yours, J Quote Link to comment Share on other sites More sharing options...
Alex Posted August 23, 2001 Author Share Posted August 23, 2001 Quote: from matt on 8:07 pm on Aug. 22, 2001 The turbos have 2 be in there between the filter and the ic ........:wink: DOH! - I forgot about that - I'm very good at confusing myself and forgetting the obvious! Quote Link to comment Share on other sites More sharing options...
Guest Ash Posted August 23, 2001 Share Posted August 23, 2001 Sounds like you've been on the jelly beans too long, Alex. Yours, J Quote Link to comment Share on other sites More sharing options...
Gareth Davies Posted August 23, 2001 Share Posted August 23, 2001 You'd think Alex's condition was drug induced wouldn't you Unfortionatly it's not... Quote Link to comment Share on other sites More sharing options...
Alex Posted August 23, 2001 Author Share Posted August 23, 2001 Well I'm from Norfolk and so having the genes of my dad and my sister is likely to warp my mind!!! But you should see my second cousin Billy..hic #END OF TOPIC - this needs locking I think as I've learnt my lesson# Quote Link to comment Share on other sites More sharing options...
Alex Posted August 27, 2001 Author Share Posted August 27, 2001 I've just found out I'm not so mad its just that Toyota were forced to put the turbo's before the intercooler because of a lack of space. Some manufacturers cool the inlet air before it gets to the turbo's hence my above blunder... So now what we really need is a water cooled charge cooler in between the intake and the turbo's .... Simple :biggrin: Quote Link to comment Share on other sites More sharing options...
Branners Posted August 27, 2001 Share Posted August 27, 2001 I would be interested to know who cools before the turbos so I can avoid that make of car!! Basically the vast majority of the heat is put into the air by the turbos themselves so I would always look for a car that cools after the turbos. JB Quote Link to comment Share on other sites More sharing options...
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