HappyTrun Posted April 9, 2018 Report Share Posted April 9, 2018 In the case of D Jetro, please tell me where the mounting position of the IAT sensor is in the traditional and model base.air temp sensor position (AVO/Motec Japan written) A. The temperature before the air cleanerB. Temperature before throttleC. Intake manifold temperature after throttleWhen considering repetition by overlap, which is better? Thanks, NAO 1 Quote Link to comment Share on other sites More sharing options...
Brad Burnett Posted April 9, 2018 Report Share Posted April 9, 2018 In most situations, you would put the IAT sensor just before the throttle body. Quote Link to comment Share on other sites More sharing options...
ClintBHP Posted April 9, 2018 Report Share Posted April 9, 2018 I put one in the air box and one in the manifold right by the cylinders. I can always see things like intercooler effficiency or heat soak. In the recent years I have moved to Garrett cores and thermodynamic blocking gaskets. Quote Link to comment Share on other sites More sharing options...
JMP Posted April 22, 2018 Report Share Posted April 22, 2018 bumping this one up, is there a preferred position for the IAT when operating in modelled fuel mode? I've just switched a turbo 2zz to modelled fuel mode which is fitted with a Bosch TMAP sensor in the intake manifold, but having a fair bit of trouble getting the AFR to remain consistent (ID1050X's, manifold referenced FPR, fully instrumented with fuel pressure/temp sensors etc). I usually fit the IAT in the intercooler pipe just pre-throttle but haven't done a modelled fuel setup before. I'm considering putting one of the T1 Race Developments fast response glass bead sensors into an inlet runner close to the inlet port. Would this be better for the modelled fuel mode than fitting a sensor pre-throttle? I'm guessing there would be less of a span in the charge temp estimate table with a sensor in the runner compared to pre-throttle Sensor I'm referring to: https://www.t1racedevelopment.com/category/universal-parts/electronics/sensors/temp-sensors/t1-fast-at.html Quote Link to comment Share on other sites More sharing options...
Steve Posted April 22, 2018 Report Share Posted April 22, 2018 You are using the charge temp approximation table, right? Its a pain to tune but just read up on it and youll get there.. T1 sensors are great. Personaly i have one of the short ones just before the tb and a long one in one of my runners. Im using the long runner one for my speed density fuelequation and it works exelent. No issues with heatsoak in my car. You really want it to meassure the air going into the cylinder so idealy it should be as close to it as possible. However people are usualy fighting heatsoak so most of the time it is placed before the tb. Which is a tradeof. Acuracy vs resistance to heatsoak... Quote Link to comment Share on other sites More sharing options...
JMP Posted April 22, 2018 Report Share Posted April 22, 2018 yes, using the charge temp table with the warmup and IAT tables are zero'd out. I've got enough inputs so I think I'll add one in the runner and another pre throttle. More data's always better Quote Link to comment Share on other sites More sharing options...
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