I have altered mine too - removed the rubber strip and unscrewed the stop blobk to lift the shut position...



I think this will not be insignificant to air intake across the induction area

 

Jeff :
Aluminium is an exceptionally good heat conductor. Give me a ring when you get home and when you know the size of sheet you require. I will see if I can sort out a section of carbon fibre and heat mat. Best to do this in cardboard as a template until you get the shape and holes in the right place. Run it from the driver side chassis rail to the bonnet and avoid gaps where you could get hot engine bay air ingress. It can be topped off with door seal rubber or similar to form a seal to the underside of the bonnet.

 

Air intake temperature will have little effect on the ACT if the intercooler is capable of doing its job properly. It can however have an influence on power delivered because the colder/denser the charge the more power can be developed.
Every 10C ACT is 2-4% BHP.
Monitoring ACTs will quickly show the defficiencies of the TMIC as opposed to an efficient FMIC.
Do not place the sensor in the inlet manifold as it will possibly measure the temperature of the cast manifold or be influenced by it. On an FMIC I measure the ACT with the probe in the hard pipe just before the throttle body. On a TMIC I insert the probe in an aluminium coupler inserted in the pipe between the TMIC and TB but not in contact with either.

ACTs below ambient may be as a result of disparity of guages used.

450 bhp 2 litre with Hybrid GT FMIC. Cruise is typically 2-4C over ambient.
Typical rolling road Power run 15C over ambient.
Fast cross country, never more than 15C over ambient and typicall 10-12C.
Top speed run, 160-170mph, up to 20C over.
EGTs run to 900-930C max and I never take it beyond 930C.
EGTs with water methanol injection around 800C or just over.
EGTs with 20% methanol only, up to 850-860C.

335 bhp STi 3 Wagon. O/E TMIC and turbo. Sprint 0-100 mph ACT exceeding scale at 70C so beyond 50C over ambient.
Same car 392 bhp with STi 8 TMIC and bigger turbo injectors etc. Bigger bonnet scoop and STi 8 under tray. Fast cross country. Typically 25-30C over ambient.
RR power run, typically 25-35C over ambient.

 

^ Juicy info there Harvey - nice one

 

Quote Harvey

" On a TMIC I insert the probe in an aluminium coupler inserted in the pipe between the TMIC and TB but not in contact with either".

Is this something you've made yourself?

Is the probe permanently in the pipe?

I'd be interested in doing this but want to make sure it seals properly.

Is the throttle body coolant delete mod worth doing?

 

My sensor is screwed in the intercooler and clearly reads end tank temp and not the actual air charge temp especially after a hot start up! But it does stabilise after a ver short run. Prehaps I can insulate it? A plastic screw in boss maybe the answer

 

1. I simply cut a piece of aluminium pipe of the appropriate diameter but a number of the silicon hose suppliers will also sell you joiners which do the job. Simply drill and tap.
2. Yes.
3. Done properly there is no reason it would not seal.
4. Yes. Every little bit counts.

The real solution would be to mount it between the throttle body and TMIC output. Where it is at present the sensor is most likely influenced by the engine bay heat radiating in to the sides of the TMIC.

 

Cheers Harvey i'll try one of these.

http://www.viperperformance.co.uk/pr...php?xscId=9822

 

I'll look into it as I def needs addressed as it is causing running problems when left after running

 

I have not done this but it sounds like a good idea and every little bit helps. This could be a good additional cold air feed.

 

I think it works quite well

Here's the working pic link (post #31 above): https://lh3.googleusercontent.com/-2...0/P1010254.JPG

 

To mount the probe I drill and tap the hard pipe of the FMIC just before the throttle body. On a TMIC I simply cut a ring of stainless or aluminium pipe, insert it in the rubber joiner between the TMIC and throttle body, ensure it will not touch either of these and then drill and tap with a small hole cut through the rubber.

 

I have one of Harveys dual sensor gauges (same as above) and they are very very nice indeed.

one sensor is just before the tb in the fmic pipe, and the other is in the pipe that my air filter attaches to in the front bumper.

 

^ nice. Have you got a bigger version of your second pic?

What sort of temps do you see?