Intercooler upgrade on stock tune

[Arriba!]

Curious if anything about the stock tune, such as fuel maps would cause the engine to run lean if I upgraded my intercooler.

Any thoughts or other downsides to an upgraded intercooler prior to tune?

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[XR650R]

Wouldn't hurt anything at all. Cooler charge temps are always a good thing.

 

[CGLENN27]

There is alot of misconceptions about bolt-ons and needing a tune. Simple fact is the stock ecu (or tune) is able to change several perimeters depending on condition, temp, air flow....you name it. So upgrading your exhaust or intake side will not negatively affect your vehicle (within reason). The only way you then benefit from these bolt-on's is to change the tune to better accommodate. So for your specific question, its perfectly fine... you will just have cooler air temps (which is a good thing) but you won't necessarily fully benefit from the intercooler without a tune.

 

[Arriba!]

That's what I figured. I'm just mildly concerned with denser air leaning A/F and retarding timing. Because it sounds like only a tune will add fuel to correct A/F.

Maybe I'm overthinking it.

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[TyphoonFiST]

That's what I figured. I'm just mildly concerned with denser air leaning A/F and retarding timing. Because it sounds like only a tune will add fuel to correct A/F.

Maybe I'm overthinking it.

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The denser the air....more power and be developed consistently!

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[zanethan]

Notable improvement on mine with the stock tune and an intercooler upgrade. It no longer feels like a slug at ambient temps above 90.

 

[jwolfe]

What about coolant Temps? More efficient intercooler typically cuts down on radiator efficiency and higher coolant Temps from what I've seen in the past.

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[CGLENN27]

coolant temps will be fine. No need to worry about anything leaning out, the oem computer on modern cars can correct a/f so fast you'd never notice or do damage. That's what the engine management system does.. when it comes to intake and exhaust stuff.... the better it breathes and the cooler it runs, the better, stock tune or not (sure there is the extreme cases where this isn't true but for the most part).

 

[zanethan]

What about coolant Temps? More efficient intercooler typically cuts down on radiator efficiency and higher coolant Temps from what I've seen in the past.

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I don't have an AP yet so I can't be specific to the degree in which my coolant temps have increased. That being said, I have noticed oil temps (true oil temps, I installed a gauge) increased slightly when under load but they drop back quickly when not under load. They also have not gotten to a temp where I was concerned (230 max on a 98 degree day while driving up a mountain with spirited driving). My dummy gauge always says 4 blocks once up to temp even in the 95+ degree days.

 

[alexrex20]

What about coolant Temps? More efficient intercooler typically cuts down on radiator efficiency and higher coolant Temps from what I've seen in the past.

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I definitely believe that my coolant temp is less under control with my upgraded IC than with the stock IC. It only makes sense. 95F ambient is about the limit of what the stock cooling system can handle with mild/aggressive hooning.

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[jwolfe]

coolant temps will be fine. No need to worry about anything leaning out, the oem computer on modern cars can correct a/f so fast you'd never notice or do damage. That's what the engine management system does.. when it comes to intake and exhaust stuff.... the better it breathes and the cooler it runs, the better, stock tune or not (sure there is the extreme cases where this isn't true but for the most part).

Eh considering that you can overheat a Stock FiST on a hot day ... the stock cooling system is NOT fine imo. And just adequate on a stock car.

 

[Quisp]

That's what I figured. I'm just mildly concerned with denser air leaning A/F and retarding timing. Because it sounds like only a tune will add fuel to correct A/F.

Maybe I'm overthinking it.

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Charge temps are lowered more in cold climates than any intercooler will and all's well.

 

[captainmorbid]

Occasionally, it gets to -30/40 degrees C here, it really livens up the power, but traction is a bitch!

I’ve had -40 C inlet temps on my commute? That air is so dense it’s near fluid. Pretty sure that the FMIC options available shouldn’t affect anything tuning related, just enables more consistent inlet charge temps, in the summer(of course)...


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