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Old 01-15-2005, 01:35 PM   #1
feiron
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2005 WRB STI
[S600BY]

Default question on TurboXS stage3

Stage 3 is basically stage 2 with more agressive tuning assuming that a larger IC is installed right? which means it needs better cooling capacity to be safe...

my question is.. can I run stage 3 with the stock IC in the winter?

it gets below 0 degrees (in celcius) at night and at noon it rises to 6 degrees at most...



*flame suit on*
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Old 01-15-2005, 03:20 PM   #2
jalow72
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Quote:
Originally Posted by feiron
Stage 3 is basically stage 2 with more agressive tuning assuming that a larger IC is installed right? which means it needs better cooling capacity to be safe...

my question is.. can I run stage 3 with the stock IC in the winter?

it gets below 0 degrees (in celcius) at night and at noon it rises to 6 degrees at most...



*flame suit on*
Fuel map is different between the Stage 3 and the Stage 2. I would not run the stage 3 map (presuming that winter air is keep that intercooler cold) unless I at least had the uppipe.
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Old 01-15-2005, 03:39 PM   #3
hippy
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The stage 2 map runs leaner then the stage 3 map in many areas(if not all, I forget). If you run the stage 3 map without an intercooler, your car will most likely run much richer then with a stage 2 map. Ie- If your engine runs an a/f ratio of 10.5 to 1 with the stage 2 map, using the stage 3 map would probably drop that to 10 to 1 or richer in many situations. This could make your car slower. I'd suggest stayin away from the stage 3 map if I didn't have a large top mount intercooler, and the rest of the mods that the stage 3 map is ment to be used with. As always, this is just my opinion.......

peace
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Old 01-15-2005, 04:41 PM   #4
feiron
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Quote:
Originally Posted by jalow72
Fuel map is different between the Stage 3 and the Stage 2. I would not run the stage 3 map (presuming that winter air is keep that intercooler cold) unless I at least had the uppipe.
I am catless all the way... the fuel map in stage 3 is designed to dump more fuel, correct?

Last edited by feiron; 01-15-2005 at 04:47 PM.
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Old 01-15-2005, 04:44 PM   #5
feiron
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Quote:
Originally Posted by hippy
The stage 2 map runs leaner then the stage 3 map in many areas(if not all, I forget). If you run the stage 3 map without an intercooler, your car will most likely run much richer then with a stage 2 map. Ie- If your engine runs an a/f ratio of 10.5 to 1 with the stage 2 map, using the stage 3 map would probably drop that to 10 to 1 or richer in many situations. This could make your car slower. I'd suggest stayin away from the stage 3 map if I didn't have a large top mount intercooler, and the rest of the mods that the stage 3 map is ment to be used with. As always, this is just my opinion.......

peace
I agree.... stage 3 will make me run richer, but then... on cold days... the engine will receive more air particles due to the colder temperature, yes?

my noobie logic tells me that means there should be enough air to be burnt along with the fuel...


keep the opinions coming that's the point of posting here
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Old 01-15-2005, 04:59 PM   #6
hippy
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Quote:
Originally Posted by feiron
I....but then... on cold days... the engine will receive more air particles due to the colder temperature, yes?

my noobie logic tells me that means there should be enough air to be burnt along with the fuel...


keep the opinions coming that's the point of posting here
Your newbie logic has some holes in it. The utec see's the amount of air going into the engine. If more air goes in on a colder day, the utec will put out more fuel. So, having a richer map will make you run richer on cold and warm days then a leaner map would. It's not like the stage 3 map is the winter map for a stage 2 car. It's a stage 3 map.

peace
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Old 01-15-2005, 04:59 PM   #7
jalow72
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For a second there I fell into the "cold air" logic trap too. But now that I really think about it, a larger intercooler also has a significantly increased airflow into the throttle body. I do not think cold air would compensate enough for the cfm and believe that you would not see any greater performance difference than you do with stage 2.
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Old 01-16-2005, 01:29 PM   #8
feiron
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good point... I didnt even think about the air flow

thanks guys
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