Nothing too impressive, I hit 309.1 HP & 649.4 Torque. After I figure out which tow burn I want to keep I think I should have Tony Wildman redo another race burn. Then I need to start saving $ for tranny upgrades before doing the big oil and/or fuel.

 

AARRRRRGHHHHH!

you have a rebuilt tranny, and that is where you got that extra 10 hp and the 70 lb-ft. i have a stock tranny and basically the same mods as you except for the chip burn, and i'm losing alot of power thru my driveline. when jtharvey got his tranny done, he went from 289 up to like 304 or 314 or something like that.

 

Your seeing less boost numbers because there is less of a restriction. It's moving the same amount of air, just not sqeezing it throught such a "small" hole.





edit: fat fingering

 

I think the lower boost numbers actually come from the cooler air temps. Cooler air = more dense air = less pressure. More air is being moved through this IC, but at a cooler temp, which results in a lower boost number...and more power, which is the best part anyhow.

 

JT, I agree with everything you said except the more air is being moved through the larger intercooler part. The turbo will only move x amount of air whether through a dumpster sized IC or the stock one. The larger IC will cool better because of larger surface area and thus present a cooler charge at a lower PSI because of that (pressure drop). Those pesky gas laws.

Now if you were referring to more air moving through the IC as in due to the surface area of the IC and ambient air flow through the cooling fins, then I misunderstood you, and you are correct. The size of the IC will never change the volume of air a turbo will produce. One inlet and outlet size equals no change. A poorly designed IC will lead to air channeling resulting in a waste of that surface area for cooling regardless of surface size.

Bottom line, cooler air, whether by better IC or more efficient turbo equals more air per CC in the cylinder which gives the POTENTIAL for more HP/TQ when the proper amount if fuel is present at ignition.

Sooo, just how much HP/TQ can be gained by an IC alone? I don't have the dyno #s to say. I know the cooler, the higher the potential but are diesels taking as much advantage as the gassers, or better yet, is the stock IC all that bad? Is 10-20 HP worth $1200 or do the lower egts alone justify it when towing? You guys decide. I don't tow heavy. Just a boat. And that cleared up nothing. Kevin isn't gonna like my thoughts on this but PMR guys may want to think real hard about this investment unless those PMRs are planned to be on their way out, and big HP #s are in your future. JMO

 

My thought would be for someome with pmr's to go with the normal, gauges, intake and exhaust. Before going to a turbo that would put them over the top to think about an intercooler (similar cost). Definite gain in power plus be able to use the chip to it's full potential. Unless you've tried one you might not believe the difference.

 

The reason I believe that more air is moving through the IC is because it's design makes it less restrictive than stock. Yes, the turbo will only move x amount of air, but the IC helps the turbo to more easily move that air into the engine. So, I would think that more air is making it into the engine. One of the big things I noticed, aside from the AIT and EGT reduction, was how much quicker my turbo spools with the Spearco installed. To me, that says more air is moving through it. I think of it like this - imagine the turbo trying to push all that air through a soda straw into the engine, versus say a 5" diameter pipe. Does the turbo itself have the potential to move more air due to what's after it? Probably not. But, would more air be moving through the 5" diameter pipe than the soda straw? I would think so. The psi in the soda straw would be much higher than that of the 5" diameter pipe, but more air would be flowing through the 5". Think about a garden hose with no type of sprayer or other attachment on it. Lot's of volume, but low psi. A sprayer on a jet type setting, lots of pressure, but not as much volume. But, the hose connection is supplying the same volume in either case. Same principle applies to the IC. Reduce a restriction and more fluid (air in this case) moves through it.

Maybe I'm misunderstanding what you're saying. By no means am I trying to get into an argument. I get enough of that as it is from other places.

I think that maybe tomorrow I'll hook up the AE software and take some 1/4 mile run times and compare it to what I ran before the Spearco IC. That should tell me something. And, it would be easier than driving to Lead Hill for some dyno runs.

 

I've not tried it on my truck so I cannot say. You have, so I will not argue. I'd like some just intercooler dyno numbers. Your rig is pushing the limits though, and those of us with PMRs may want to keep that in mind since our limit is much lower. Thanks for the input.

 

Well, I am potentially one of the PMR guys. I have been discussing the turbo/ Spearco IC pkg that BWD sells. I run a Predator, with all the supporting mods, and am thinking more and more that a bigger BB turbo plus a new IC in addition to Tipton programming is my next step. It takes very little time to hit 1300* on the 85hp Predator tune. I also live at 8000 ft., so I think the more air I can pump through my Stroker, the better. I am hoping that, I too, can see the much lower EGT's that JT, as well as others, see even with higher HP programs. I appreciate any input on this......

 

The only way I would suggest the bigger turbo is with custom programing such as jodys'. Brian would never lead you in the wrong direction.

 

I think you may be, my big point was just how bad is the stock IC? If it is a straw then you are fully correct. I just don't think anyone has proven it is a restriction. The best, no. I cannot believe Ford put a reducer intercooler in the stream of a 10K engine they warrant for 100k miles. When someone proves to me this is a problem, I'm on board. We all know there's better to be had, the question is how much better. Kevin's point about the PMR prob is well taken, When pushing it, why take chances?

As for an argument, I know exactly what you mean, because I wear the pants around here, as soon as I wash and dry them.

 

Everyone that has installed the Spearco has noticed quicker spool up and response. That alone tells me the stocker is a restriction. These may be added benefits to the main intention of dropping egt's.

 

Man Kevin, you've left me nothing to work with except those folks may have bigger/better turbos that can take advantage of it. I don't have 1plus k for an IC bro. I guess I will have to see if there is some kinda way I can still talk myself out of this mod because there is much else I want to do not to mention the general maintenance I have to do.

 

And lower EGT's IS my main goal here, as well as many others, I would venture to say. BWD claims 200* drop, I want(ed) to see some impartial real world data to support this. Also numerous folks have said that Mr. Bunting is a straight shooter, which makes me more apt to just drop the $2.5K for the turbo/IC pkg.

For my '03, EGT's seem to be the enemy, until the 400 pony mark starts looming on the horizon.....

 

Tenn, I think you hit the nail on the head with the talk of the bigger turbo. I think the stock IC is just fine for a stock turbo and stock truck. But, when you start upgrading turbo's, and then add chips, fuel systems, injectors, etc..., that's when the stock IC starts to become a restriction. Start saving for an IC. I don't think that right now it would benefit you a whole lot, but it would help some for sure. As you upgrade though, it will become more important to have a bigger IC.

Side note, you ever heard of "The Man Song", because your line about the pants reminds me of it, and it makes me laugh. See here for the lyrics: http://humor.beecy.net/menwomen/mansong/