want to buy a intake elbow..Which one??

[Bug Out]

I have spent several hours reading about elbows, who's looks the best, metal shavings in them from factory, etc etc.



Has anyone actually done a dyno on a stock truck, then installed a aftermarket elbow and seen a real increase in power? which brand?



The web sites for the products all claim to be the best in town..... Graphs etc



After reading the post, I tossed my idea for a "Air cool" air intake box. I'm even going to order a stock Mopar intake filter. .



Thanks for your input. Hopefully my eyes will stop burning from all the reading. .

 

[rscurtis]

I have an AFE on my signature truck, there may be some improvement in performance, notice I said "may". I didn't realize when I bought it that it came from the PRC. Had I known that, I would've kept looking.



A couple of years ago I attended a truck pull, and the guy who won had a third generation with stock tires and an engine modded to about 600HP. He beat all the big Power Strokes and all the other Dodges, even the brand new Duramax. The truck hardly even smoked, it didn't darken the sky like all the others. He made his own intake elbow and it obviously worked just fine.

 

[JJPage]

Here's some good info for you, I just did a search and they came right up.

https://www.turbodieselregister.com...6-comparison-chart-intake-manifold-horns.html

https://www.turbodieselregister.com...44-intake-horns-efficiency-cfm-blah-blah.html

 

[EDankievitch]

Not sure if it was 8 lug or Diesel power but one of the Mag's did a review to see what if any of the claims were real about the intake horns. The findings were at stock levels they just look nice. It's only when you start putting the coals to the fire with bigger injectors and programs that you'll see an improvement with the intake. I'm running a Banks unit on my almost stock 05,only time I notice is when I'm winding it out trying to get up a big hill the truck doesn't seem to run out of steam after 2400 rpm before shifting.....

 

[Turbo_Bob]

I just took my Banks High Ram manifold off today, put the stock one back on. I will see if I notice any difference, noise, power, MPG ?

 

[CKelley1]

all test show the cfm+ and grid heater delete is the best and when you compare to the afe it is obvious why but our calculations show about 450,000 miles to payback

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[ZBrooks]

I have this one.

DTT Intake Plenum

 

[Yo Hoot]

I have the DTT one also. The only thing I don't like about it is the flange rusted up. They claim "10 minute installation". Maybe possible but why claim something that's not realistic IMHO and what does that make you think about the 30 hp 45 ft lb increase claim?

It is well constructed but for $300 shipped they could have used the same quality stainless as the tube material for the flange.

 

[Turbo_Bob]

I just took my Banks High Ram manifold off today, put the stock one back on. I will see if I notice any difference, noise, power, MPG ?

There is a difference, how much I don't know yet, maybe 2 mpg better ? I have to go through a couple of fillups to know for sure. My overhead trip calculator says 29. x, I am well aware this is always off by 3, so when I fill up I will know for sure. Right now I have gone through a half a tank, odometer trip is 510 miles with the needle on the half tank mark. I normally get 800 + miles per tank fillup, 24 MPG.



The other thing I noticed right off is the flat spot is gone between 2100-2400 rpms. I noticed this when I installed the highflow elbow. When I put the stock elbow back on after all these years, no flat spot.



Banks: flat spot, lower EGT at max boost ? Worse MPG ?

Stock: no flat spot, higher EGT at max boost ? Better MPG ?

Wont know till I pull my toyhauler up a steep grade.



I guess with the Banks elbow, lower restriction through the elbow, you loose velocity (airspeed) ? The stock elbow airspeed must be up ?



My engine is stock (no fuel mods, no boxes) so I think the stock one will be a better fit over a highflow elbow ?

 

[CToney]

I have a "cooler Tubz" horn. Made by a TDR member. $150 when I bought it. Stainless steel construction. I measured a bit of acceleration increase. No noticeable egt reduction. Stocker looked quite restrictive so I changed it. I like wrenching and it looks cool. Chrome exhaust tip adds 5hp right so the intake horn must add at least that much. LOL

 

[JJPage]

There is a difference, how much I don't know yet, maybe 2 mpg better ? I have to go through a couple of fillups to know for sure. My overhead trip calculator says 29. x, I am well aware this is always off by 3, so when I fill up I will know for sure. Right now I have gone through a half a tank, odometer trip is 510 miles with the needle on the half tank mark. I normally get 800 + miles per tank fillup, 24 MPG.

Turbo Bob... ... ... ... .

 

[rscurtis]

Turbo Bob, replace the stocker with a BD Super and a manifold, and you'll get even more improvement- and a little more MPG.

 

[Deleted member 995608]

I bought mine for the coolness factor, and that's it.



I'd bet that you'd need a combo of parts to notice any measurable difference.

 

[Bob4x4]

The biggest diference from the intakes is right

At the towing rpm a good load type dyno

Is the way to see it

I have seen many of them run on the same flow

Bench and there is a difference

 

[Turbo_Bob]

Turbo Bob... ... ... ... .

I like the coolness factor of the highflow manifolds, I bought mine for the possible reduction of EGT's while towing. I did notice the flat spot when installed, never went away, just lived with it for years. I got the excuse to remove it because I was troubleshooting the intake heater system (another story in another post), after installing the stock manifold, no more flat spot, very smooth power right up to redline. At this point in time and forever more, fuel costs will keep going up due to political reasons. Today diesel in my location is 4. 35, I have paid up to 5. 35 at the peak in 2008. Not good on the budget when paying 180. 00 per fillup when this is my commuting vehicle, I average 430 miles a week, 24 MPG @ 60 MPH.

 

[AH64ID]

The CFM+ tested the best, but the GDP was nearly the same and quite a bit cheaper, and metal.

I have the GDP and it made a nice improvement in cruise IAT temps, low boost spool/smoke, and high boost IAT's.

 

[Turbo_Bob]

There is a difference, how much I don't know yet, maybe 2 mpg better ? I have to go through a couple of fillups to know for sure. My overhead trip calculator says 29. x, I am well aware this is always off by 3, so when I fill up I will know for sure. Right now I have gone through a half a tank, odometer trip is 510 miles with the needle on the half tank mark. I normally get 800 + miles per tank fillup, 24 MPG.

False alarm, I filled up again, 4. 539 a gallon, $152. 70, 33. 64 gallons, 801 miles, = 23. 81 MPG, which is right on with winter blend diesel. I think the month of March in CA starts the summer blend diesel, which I average 24. 8 MPG, I will see with the next fillup.



Back when I put the elbow on it did not pick up MPG, so when removing it should not have helped MPG. I do enjoy not having that flat spot. I will see when I tow if the EGT's are higher?

 

[rjones]

I was never a believer that these intake would give any HP increase just a lot of bling...

 

[AH64ID]

They don't increase peak hp, at least I don't see a peak difference, but where they help is the low/mid range and the difference is noticeable. It's kinda like the timing on the Smarties, the timing only gives about 10hp peak hp additional, but from 1600-2400 rpms it gives about 40-50 hp, and that's a lot of useable torque.

 

[rjones]

They don't increase peak hp, at least I don't see a peak difference, but where they help is the low/mid range and the difference is noticeable. It's kinda like the timing on the Smarties, the timing only gives about 10hp peak hp additional, but from 1600-2400 rpms it gives about 40-50 hp, and that's a lot of useable torque.

with all due respect AH I would like to see it on paper has anyone actually put on a Dyno specifically for testing these intakes... Not being sarcastic so please no flaming