50\'c+ Intake Temps

[Rixio]

When im in traffic im seeing crazy intake temps! Water temps and Oil temps are fine!

Iv got a HKS FMIC and iv relocated my primary filter to my side light to have a ram air effect...i.e under the front drivers headlight...

Im thinking of butchering my bonnet to let the heat escape but been told it can have an adverse effect when the car is on the open road...

WI is next on the agenda but atm i dont have a penny to my name, so that will have to wait :Hammer

What to do...what to do...

[antnicuk]

flip up into a v mount, that free!

[memski]

I\'ve got a hks fmic and my temps don\'t go much over 30, got an underbonnet pic?

[antnicuk]

You mention that its only in traffic,  it doesnt really matter how big your i/c is or its position, the sensor is getting cooked under the plenum and thats whats getting hot!   You could be putting cold air into it and it will still read hot as at idle its not moving enough air quick enough through the plenum to cool it.  

The important thing is how quickly it cools down once you are on the move.  I picked a w/i kit for £100 on here, i have used w/i for 3 years now and its the best mod you can do for a rotary IMHO.  A lot of people still dont agree but thats downs to them.  

I always fit a button in the cabin so i can fire the w/i so if you are sat in the queue at the pod or in the pits at a track or in traffic,  just before i race i fire it a couple of time and it drops the air temps quicker than you can count backwards.

I flipped my i/c up from the stock mount position and at the same speed (long motorway journey) on a similar temp day i went from 50 to 24 degrees air temps.  without w/i

[Rixio]

Sorry forgot to add i have a upright Feed rad...but even on the move they are around 38\'c which i thought is pretty high...on the yellow car i see 24\'c moving and 30-32\'c in traffic and thats only got Stock mount and stock rad in the stock position...

Im gona post in wanted for WI now...

[Tintin]

I\'m probably going to get told I don\'t know what I\'m talking about here but 40\'c temps are fine , the ecu will stop adding extra fuel around this temp , yes cooler will produce more power but 40\'c aint dangerous

Above 60\'c is getting into the danger zone and this is were the ecu will start to retard the ignition

[antnicuk]

I\'m probably going to get told I don\'t know what I\'m talking about here but 40\'c temps are fine , the ecu will stop adding extra fuel around this temp , yes cooler will produce more power but 40\'c aint dangerous

Above 60\'c is getting into the danger zone and this is were the ecu will start to retard the ignition

I agree with you, 40 is fine....................... but cooler is still better for more power.

I think ducting is a major issue with the whole cooling set up. Its more important to fit the thing right and duct the air accordingly than just stick a big rad or i/c in the front.

Look at 88gtr\'s set up,  his i/c isnt that big but its fitted in the right place with some really good air flow and his car sees well over 500 hp.   My i/c is tiny compared to most but temps are great,  i ducted the whole front so every bit or air has to go through either the rad or the i/c,  the air will take the path of least resistance so if it can go round them it will.  

I did some testing on my FC,   i ran it with the number plate in the stock position at the front of the bumper in a verticle position and the water temps sat at 86, pulled over, bent the bracket so the number plate directed air into the mouth slightly, set off again up the same bit of motorway and temps sat at 83-84.  

Ducting is cheap and easy too   :cheers

[gmogle]

The above re ducting is so true.

I have the Trust/Greddy SMIC. A brilliant unit but using the standard ducting is just rubbish !
My winter project is going to be improving this.

[AtomicRex]

One of the best thing to do is get some ally sheet and make sure you completely duct the radiator and intercooler in.  The more air you restrict from seeping around the side the better the cooling.

V-mounts are very good....so much so we are in the process of about to release a new one!  Be a little different to the normal ones....a little bit bigger, but like Intel we have gone for a dual core!......Flow is everything!

[gsb876]

You are going to get those temps in traffic regardless really,

if the car isn\'t moving theres no way of cooling, water inj only works on the move too unless you got manual purge ?

All 3 of my previous rx\'s have wondered over 50oC when stuck for a long time in traffic, the newer one is much better but eventually will also go over 50oC :Hammer

[antnicuk]

, water inj only works on the move too unless you got manual purge ?

Manual purge...............  i like that description,    

I have a manual purge on mine!  works a treat when you cant get moving to cool things down.

[gillard28]

With a manual purge are you not just bullsh1ting the AIT tho !!
 
Scott

[hairyhoover]

i surpose it depends where the nozzel for the WI is..
 
If its pre intercooler then it should cool the intercool.
If it post intercooler it will probably jut cool the sensor.

[AtomicRex]

Eh....all you are interested in is cooling the charge entering the engine....best place is to put it in the elbow

[Rixio]

Hmmm will try and sort some ducting out this weekend. Im in the middle of making a top tray that goes from the front bumper to the top of the rad...the undertray is gona take some more doing though.