terry55

Hello all,
I just completed a Star -10*C temperature correction, a PTE-180 thermostat
install and a Johnson IC-30 intercooler pump install. After driving the car all week I took it back to my friends shop that has the Star System. His shop is about 30 miles from where I live so the car was at operating temperature when I got there. When he hooked the car up to the Star and went to the temperature menu it said the car was at 84*C. From what I have read on other post it seems like the temp should have been lower. Is this a good temp. or is there something not right? The temp that day was around 85*F with about 80% humidity at sea level.

dyno

I'm also considering this mod and therefore studied a bit .
seems quite close to the declared value: 180 F is 82+ C, so if you read 84 is good.
further, consider that stated values usually refer to degree at witch it begins to open ..
Stock value for our motors is 87 .. that means an operating temp when full open of at least 90 C.
Older motors ran colder but anti-pollution regulation raised the value constantly: 75 degrees for late eighties car .. then 79, then 81 during late nineties.

AFAIK earlier version of the PTE mod were colder but they sometime threw a cel light, therefore PAT increased that value.


run hotter means that you have a modern motor that is able to do so, meaning that its materials can afford it without issues and, therefore, means a step forward toward the ideal engine adiabatic efficiency perspective.

run colder, on the other hand, is from the same point of view a waste because you are giving away heat, i.e. energy, to the external ambient ... and for doing so you are increasingly consuming resources, i.e. fuel

.. at least, this waste should be highly rewarding from a volumetric efficiency point of view


this was only for asking ... did you feel a difference or not ??:

just to help me to take a decisionD



ps: iirc you should be able to read the temp also by pushing in a certain sequence a pair of buttons of the A/C unit ..

terry55

Thanks for all the information this makes me feel much more at ease. As far as how the car feels now it does have a lot more mid range pep and I have not had the supercharger shutdown after hard or high speed runs (car has always been an animal though). After I purchased a VRP pulley and tune I felt the upgrades for the intercooler and motor would be a must for my geographical area.

dyno

good to know

.. and mileage decrease was sensible ?

terry55

With the mods I have:

Veloce: ECU
Veloce: TCU
VRP: Pulley
Sprint Booster
K&N Filters
PTE-180+F thermosat
Johnson IC-30 intercooler pump

I have not noticed any decrease in fuel milage on the highway (still about 20 miles to the gallon). Around town I usually get around 14 to 15 miles to the gallon but I have been as low as 10 miles to the gallon when I keep the petal to the floor.

dyno

I intended after the T-stat mod ALONE, ....in case you did not install all mods at one time !

terry55

No. I did not notice any milage decrease after the T-stat mod and it was done in tandom with the IC-30 (which was the last mods).

Zod

have you dynoed yor car to see the gains?
Have not heard of any one posting from your tuner with results, would be good to know

terry55

Unfortunately no. The nearest dyno is over three hours away and I have not been able to make time to get there and get it done due to work schedule. Believe me though I am very curious to see what the car is pushing.