Recent content by Black2003Cobra

Nice results...congrats!!! I see you posted the ambient temp, but can you also tell us what the baro & RH readings were? How about the AFR and timing. Thanks!!

Yes. After the intercooler is the way to go. Here's some more links. Dave King reports on Lidiio's work: http://www.modularfords.com/forums/f17/interesting-read-all-those-methanel-critics-53586.html Oldbones work, who was first on ModFords to try it...

The xfer function for the stock meter indicates it will peg at *edit*, but I think you can get an MAFia to extend the range for higher flow rates. You'll need a tune to use it. Edit: Looks like the FGT meter reads 85.9 lb/min. Sorry gents. http://www.modularfords.com/forums/687957-post1.html...

The expression for the air-density correction factor in that link is correct, and is used on both inertial and "loaded" dynos. You have to ask the dyno operator for which one (SAE, STD, uncorrected, etc.) you want them to use. (Or if it was done on a DynoJet and you have the run file, you can...

That's the same part number as used on the 03 Cobra, which is a 2 bar sensor. (So you can monitor boost pressures up to 1 bar).

Here’s how I see the trade-offs breaking down: Cost => Whipple advantage Low-end torque => Whipple advantage Peak power for given boost => Turbo advantage Most power for given fuel octane => Turbo advantage

I have posted on this before here: http://www.fordgtforum.com/forums/showthread.php?t=827&page=2 Looks like some of the data graphs got taken down for some reason, but here are the links... Whipple 2.3L data http://www.modularfords.com/forums/288172-post19.html Turbo data...

Manifold Absolute Pressure.

John - Do you know what the specs are (lift, duration, LSA) on the stock bump sticks? Thanks.

Ah, I see. For that case, yes, the effect is more significant, of course! In fact, that is exactly what Saab does with their FFV turbo. When running on E85, the boost pressure is raised, hence the added power. And of course the higher the percent ethanol, the lower AFRs gets, and the higher...

Yes. There is some additional cooling effect. (That’s where having a higher latent heat of vaporization comes in. The extra mass of fuel helps, too, but that isn’t nearly as large an effect.) Yet at only 10% ethanol by volume, the overall effect isn’t very big. If one works it all out, (for...

Around here, we have 10% ethanol (by volume) in our pump gas. That reduces stoich (AFRs) from around 14.6 down to just about 14.0. As mentioned, in closed loop, since the O2 sensors are reading lambda, this really isn’t a problem. But for a typical boosted application, to maintain an...

There was one member on this board that tried the K&N filters and saw no gains at all, IIRC.

Is it really that low? Can you provide a reference by any chance? (Other numbers I've seen were closer to 0.4) Any idea on the cross sectional area? I'm already familiar with the theory, but thanks just the same. Are you an engineer, too?

To first order, yes! (However, if boost pressure drops some, the parasitic drive power of the SC goes down, yielding a little more “net” power as meas’d at the crankshaft or wheels. Again, it’s just not as much as one might otherwise expect). I think what you are really trying to get at here...