Co0ke Posted January 10, 2014 Share Posted January 10, 2014 This may be a stupid question but I'm new to boosted engines. If I add an intercooler to my stock l28et (stock ECU, stock injector, no mods for extra fuel, no wideband yet, stock waste gate 7psi) will I need to worry about leaning out? <<---just because i've read it a few times on other forums and need peace of mind. In my mind, this is simply making the already compressed air cooler and more dense and a slightly lower psi because of the lower tempurature, which means less boost in the cylinders. Hence the need for upgrading the fuel system can wait till funds permit. Am I right? Quote Link to comment Share on other sites More sharing options...
SleeperZ Posted January 10, 2014 Share Posted January 10, 2014 No worries. The air flow meter will measure the air directly, and with cooler air you likely can dial in a bit more ignition advance to take advantage. Quote Link to comment Share on other sites More sharing options...
vale2489 Posted January 10, 2014 Share Posted January 10, 2014 (edited) At that boost level I wouldn't worry...an fmic is never really a bad idea at lower boost levels, but sometimes the bling factor outweighs the benefits. Edited January 11, 2014 by vale2489 Quote Link to comment Share on other sites More sharing options...
Co0ke Posted January 11, 2014 Author Share Posted January 11, 2014 (edited) Cool thanks, I will of course be turning up the boost once I've taken care of all the safety measures just trying to do my upgrades in such a way that I can still drive the car. Edited January 11, 2014 by Co0ke Quote Link to comment Share on other sites More sharing options...
Sideways Posted January 11, 2014 Share Posted January 11, 2014 Without an intercooler (as it is stock), initial intake temps will be "relatively" ambient- And then go up as you you go about your business. An air to air intercooler will maintain intake temps closer to ambient. If your car can handle initial intake temps at close to ambient, it should be able to handle them if they continue to stay close to ambient.Think of it this way: If the intercooler in your car resulted in an intake temp low enough to cause issues, youd be advised not to drive at night. Your car can handle driving when its 90 outside, it can handle driving when its 40 outside during winter. It can handle an intercooler maintaining intake temps closer to ambient Quote Link to comment Share on other sites More sharing options...
redzedturbo Posted January 24, 2014 Share Posted January 24, 2014 Do it!!!! Never look back go big as you can. It's almost impossible to have to big a intercooler. Quote Link to comment Share on other sites More sharing options...
HowlerMonkey Posted January 24, 2014 Share Posted January 24, 2014 (edited) Moving where the wastegate gets it's pressure signal from the turbo housings to a nipple on the piping after the intercooler will ensure your engine sees the same boost even with the possible restriction of the new intercooler. Be careful not to have a hose fall off if you do move it or you could end up with crazy boost and possible engine damage. Edited January 24, 2014 by HowlerMonkey Quote Link to comment Share on other sites More sharing options...
roger280zx Posted January 25, 2014 Share Posted January 25, 2014 This is just such bad advice. Too large an intercooler can create an extremely laggy car. I do agree shoot for the coolest air you can get, but you can absolutely overkill an intercooler. Quote Link to comment Share on other sites More sharing options...
Sideways Posted January 25, 2014 Share Posted January 25, 2014 This is just such bad advice. Too large an intercooler can create an extremely laggy car. I do agree shoot for the coolest air you can get, but you can absolutely overkill an intercooler. Might I trouble you to elaborate? Thanks Quote Link to comment Share on other sites More sharing options...
roger280zx Posted January 25, 2014 Share Posted January 25, 2014 I do not know why I'm unable to quote properly on this forum, but my response was to the comment "...Never look back go as big as you can. Its almost impossible to have to big an intercooler." There is a reason that intercoolers are built in variety of sizes, and putting a 1000hp capable cooler on an engine that can't make 300hp will do little but add weight and lag. There are so many affordable intercoolers now a days it makes no sense at all to improperly size one. Quote Link to comment Share on other sites More sharing options...
Sideways Posted January 26, 2014 Share Posted January 26, 2014 (edited) I do not know why I'm unable to quote properly on this forum, but my response was to the comment "...Never look back go as big as you can. Its almost impossible to have to big an intercooler." There is a reason that intercoolers are built in variety of sizes, and putting a 1000hp capable cooler on an engine that can't make 300hp will do little but add weight and lag. There are so many affordable intercoolers now a days it makes no sense at all to improperly size one. Ah no worries I got chya. How much lag are we talking about? Why is it adding more lag? Edited January 26, 2014 by Sideways Quote Link to comment Share on other sites More sharing options...
roger280zx Posted January 26, 2014 Share Posted January 26, 2014 Why? Because it is adding volume and friction to a pressure system. How much? All depends on how poorly you match you components. There is no shortage of information on things like this. Quote Link to comment Share on other sites More sharing options...
bradyzq Posted January 26, 2014 Share Posted January 26, 2014 (edited) Careful here. The "HP rating" of an intercooler tends to be based on the cross-sectional area of the charge air portion of the intercooler. It has pretty much nothing to do with the length of it, or its ability to cool the charge air. So, a 1000hp rated vertical flow intercooler may be of equal volume to a much lower HP-rated horizontal flow intercooler. So, HP rating is not necessarily proportional to intercooler volume AND, in my experience, intercooler volume, though it seemingly should have a significant impact on lag, in reality, doesn't mean that much. To be clear, I'm not disputing the fact that one can oversize an intercooler. Edited January 26, 2014 by bradyzq Quote Link to comment Share on other sites More sharing options...
redzedturbo Posted January 27, 2014 Share Posted January 27, 2014 This is what im running man. If it helps you out any good. Quote Link to comment Share on other sites More sharing options...
Sideways Posted January 28, 2014 Share Posted January 28, 2014 Why? Because it is adding volume and friction to a pressure system. How much? All depends on how poorly you match you components. There is no shortage of information on things like this. I must admit I was being rather coy- And I agree, there is indeed no shortage of information on this. Its because of this information and my personal experience that I have to strongly disagree that any reasonably large intercooler is going to result in an "Extremely laggy car". The time difference itd take your turbo to fill up the volume of an "appropriately sized intercooler" vs "a large one that we can reasonably fit into the front of our cars" would be measured in hundredths of a second. So ya, there would be sooome difference, but "Extremely laggy" in comparison? What kind of intercooler are we talking about here? Now I want to state- I readily and openly admit 100% that I may be completely and utterly wrong on this. If I am, I would gladly and openly welcome information that demonstrated otherwise. The correct information is far better than holding onto "wrong" information if you ask me. Quote Link to comment Share on other sites More sharing options...
Co0ke Posted January 28, 2014 Author Share Posted January 28, 2014 This is what im running man. If it helps you out any good. My setup is very similar to this. I like not having to cross over the fan, just cleaner imo. Next will be a wideband and maybe I'll experiment with added one or two more pounds of boost just to see if I can without upgrading my injectors and ECM etc. Quote Link to comment Share on other sites More sharing options...
Sideways Posted January 29, 2014 Share Posted January 29, 2014 My setup is very similar to this. I like not having to cross over the fan, just cleaner imo. Next will be a wideband and maybe I'll experiment with added one or two more pounds of boost just to see if I can without upgrading my injectors and ECM etc. Aye it does seem to have its advantages. I went the NPR route, and wound up with this: Its a bit of a squeeze across there. Quote Link to comment Share on other sites More sharing options...
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