S&B cold air intake test and dyno

[JTGuy]

I just use premium gas and it runs great.

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[JTGuy]

Oops

 

[bmpcamry09]

Underhood heat management is the biggest killer of power on these outside of the actual engine tuning. These pull several degrees of timing as the intake air temps rise. One of the best mods to be done on these that would help with power is a ventilated hood if you don't already have one.

Intakes will usually only add power if the tune is built around it, but usually MAF sensor vehicles respond the best. On these there is no mass airflow sensor so the engine is already determining torque/power demand based on MAP sensor readings inside the actual intake manifold. In tuning these, I actually do see an increase of 20-30 milligrams of aircharge at wide open throttle versus stock intake, but this is not a difference you will feel and in my datalogging may only add 5 HP 5 TQ.

If your not tuned, 91-93 octane makes a difference in power as well, I've seen it on literally every single one I've tuned. These pull quite a bit of timing on 87 octane. For every degree of timing pulled, your losing about 4HP and 4TQ and 87 octane will sometimes pull 5-8 degrees of timing at WOT versus 0-2 degrees being pulled on 91-93.

 

[Alpine Warthog]

Underhood heat management is the biggest killer of power on these outside of the actual engine tuning. These pull several degrees of timing as the intake air temps rise. One of the best mods to be done on these that would help with power is a ventilated hood if you don't already have one.

Intakes will usually only add power if the tune is built around it, but usually MAF sensor vehicles respond the best. On these there is no mass airflow sensor so the engine is already determining torque/power demand based on MAP sensor readings inside the actual intake manifold. In tuning these, I actually do see an increase of 20-30 milligrams of aircharge at wide open throttle versus stock intake, but this is not a difference you will feel and in my datalogging may only add 5 HP 5 TQ.

If your not tuned, 91-93 octane makes a difference in power as well, I've seen it on literally every single one I've tuned. These pull quite a bit of timing on 87 octane. For every degree of timing pulled, your losing about 4HP and 4TQ and 87 octane will sometimes pull 5-8 degrees of timing at WOT versus 0-2 degrees being pulled on 91-93.

Thats really interesting, How much do ethanol blends affect this? Would buying ethanol free help as well? I realize that in some areas the only kind of ethanol free is already sitting at 90 or 91 octane.

 

[bmpcamry09]

Thats really interesting, How much do ethanol blends affect this? Would buying ethanol free help as well? I realize that in some areas the only kind of ethanol free is already sitting at 90 or 91 octane.

Ethanol actually helps. The alcohol/ethanol content adds a cooling effect to the combustion process and can help reduce knock and LSPI. And these are set up from the factory in the tuning to have the fuel trims sense out E10. Long term fuel trims have to pull fuel a little bit to make E0 run optimally, which is why some people report mPG increase with ethanol free.

Ever dump isopropyl alcohol on your arm and feel that cooling sensation? Not apples to apples obviously, but same type of effect basically. It’s why E85 tuning has become so popular in other platforms. I chuckle when people say “my Jeep runs better” on E0. E0 doesn’t break down like E blended fuel over a long period of time, but outside of that, there isn’t much benefit.

 

[MeanGreen]

Thats really interesting, How much do ethanol blends affect this? Would buying ethanol free help as well? I realize that in some areas the only kind of ethanol free is already sitting at 90 or 91 octane.

Ethanol is your friend unless you're only concerned about MPG's. We have a "Unleaded88" fuel here which E15. It's usually $.20 to $.30 cheaper than 87. I can tell a difference in drivability when I get it but there's a slight hit on fuel economy.

 

[MeanGreen]

Here's the part 2 video where he dyno's the truck with the stock CAI vs S&B CAI. 12 hp/12ft lbs torque average loss on the aftermarket.

 

[JTGuy]

Yes the factory works best.

 

[Glaados]

Did the mopar intake and only used elbow to free up space the resonators take up, otherwise stock if someone may want it for that. It goes well with my borla exhaust and the tandem sounds great. Im already full E85 tuned, you will definitely feel that.

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