jack_wetone Posted August 11, 2014 Share Posted August 11, 2014 sorry if i have opened something that has been covered but after trawling the internet i cannot find anything so, i want to know what the best inlet is for the 4/5 n/a(naturally aspirated) e series engine is im guessing the acis is best but we all know how hard they are to find so, and everyone says that the corolla tubular one is the best but then i have also seen people saying 5efhe is best and the turbo inlet is best ? what i'm asking is i suppose is the corolla the 2 best or is the 5efhe (sera) one second best? 1st best being acis(Acoustic Control Induction System) manifold ? thanks Quote Link to post Share on other sites
5e colin Posted August 11, 2014 Share Posted August 11, 2014 corolla 4efe tubular mani is best !!!!! 4efe doos not rev high enough to take advantage of switsh over unless u have a jap 4efe na with 7.2 limit Quote Link to post Share on other sites
mech5107 Posted August 11, 2014 Share Posted August 11, 2014 The tubular intake is overrated in my opinion...Acis is the best, both for na and turbo.Then I would say the turbo intake, then the stock then corolla...The stock intake is pretty decent and can cope with around 140 na HP... That's what spec racing cars where running, along with cams, ecu, injectors, pistons, TRD gasket and a mild exhaust setup... Quote Link to post Share on other sites
5e colin Posted August 11, 2014 Share Posted August 11, 2014 ^^^^^^ my fanny !!!!!! acis on a 4efe dont even work till 6000rpm and cut off an a na is 6400rpm unless your hitting it of the limiter aaaaaaaal the time wich wont be on the other hand 4efte it works both ways tubular is the way forward on a na 4efe Quote Link to post Share on other sites
mech5107 Posted August 11, 2014 Share Posted August 11, 2014 I personally switch runners at 4500, but I haven't experience with a stock 4efe with only the intake. But the combo intake and cams is worth it. Quote Link to post Share on other sites
5e colin Posted August 12, 2014 Share Posted August 12, 2014 are you NA mech5107 ????? very strange it would be changing that low you would be loosing torque for sure on the 5efhe cynosB it only starts to activate around 5000 rpm and with other high lift cams it would be even later ??????? Quote Link to post Share on other sites
mech5107 Posted August 12, 2014 Share Posted August 12, 2014 I don't have even a 4efte of my own... I run a 2etelu, but i have tuned some friends' cars one turbo, one na with fhe cams and 4efte springs. I recon that with the acis intake and corolla exhaust manifold (the first version with 4efe, 88ps) you can get more than 95ps on a stock 75ps 4efe. Also, in the 5efhe the system should change at around 3800-4000, depending on TPS reading, if i'm not wrong. Quote Link to post Share on other sites
richardc9052 Posted August 12, 2014 Share Posted August 12, 2014 It's not all about peak figures. The tubular mani does wonders for mid range torque so when you change gear it doesn't big down. Other than ITB's it's the best inlet for 4efe Quote Link to post Share on other sites
jack_wetone Posted August 12, 2014 Author Share Posted August 12, 2014 (edited) right okay well im putting a 5efhe in from a sera witch i believe does not have acis manifold so i will be getting a corolla 1 do the acis manifold require any additional wiring ? thanks also what cars have the acis manifolds on? Edited August 12, 2014 by jack_wetone Quote Link to post Share on other sites
mech5107 Posted August 12, 2014 Share Posted August 12, 2014 I thought that all 5efhe engines had the acis intake. It needs an additional vacuum solenoid and an rpm switch (like a shift light). Quote Link to post Share on other sites
5e colin Posted August 12, 2014 Share Posted August 12, 2014 nope ha ha most 5efhe came without acis !!!!! im a acis runner sinds day 1 i know it well this is my creation of its setup Quote Link to post Share on other sites
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