Absolute Apex Manifold only

[borsky]

Thnx for doing this! Everyone is down playing the results it seems. But I think they are quite good. I bet there are spots in the two charts were the gain is a lot more then 20hp. Anyone advertising a perf part would take that gain and advertise it, not the peak. What did guys expect 60hp from an airflow mod? This is a solid gain albeit a fairly pricey one so take it for what's its worth. I bet it still outperforms an after an aftermarket intercooler. For about the same price. Also it seems that this dyno is not a very generous one... And I agree there would be more of a gain on a truck that had was over fueled and needed the extra airflow. Look at the results from just a wheel change on a stock turbo truck with 190's...

 

[swinky]

Intercooler would be a better investment imo.

That being said if this truck had an aftermarket intercooler I bet you'd see a bigger gain with adding the intake manifold.

 

[Powerstroked162]

If I was doing testing for a company I would've provided more info then just dyno numbers. Like Twan asked, egts. What were your egts before the intake when you made that power, what was the temperature, etc... Just seeing hp gains doesnt necesarilly mean that they came from the ported intake. It could be anything from the weather outside to how actually someone straps the damn thing to the dyno, especially with that small gain. Just my 2cents.

It's about 2hp shy of what was seen with just a manifold swap, on the track. I'd say it's pretty accurate.

Thanks again Brandon for doing the testing! Really appreciate it

 

[SleeperDuty]

I'm not sure what you guys were expecting? When I placed my order, steve had mentioned to me they had seen about a 20-25hp increase over stock which is about what I was hoping for. Anyways aside from the increase in horse power, lower egts, faster spool up and an increase in fuel mileage what more could you ask for? a blow job? geez tough crowd.

 

[f3502wd]

Im not saying that the numbers arent great, all Im saying is that with a 20hp gain or loss it can be very easily manipulated by more then just a ported intake. Thats all. Which is why I said there needs to be more numbers and factors. Lets be honest alot of the guys are more interested in lowering the egts bc they tow alot. If you did this on your own without a sponsorship/test price then big time kudos for you.

 

[SleeperDuty]

I volenteered to do this test on my own for those that were interested and my own curiosity Steve didn't ask me to do this.

 

[Ford_Fan1]

Like it has been said before, the ported intake manifold is whats called a "supporting mod" meaning that its intention is not necessarily specifically designed to turn a stock truck into a street truck, rather this mod helps support other mods done to the truck. EX: bigger injectors or turbo- by running either of these options, their will be more airflow required/ produced by the truck and with that being said, then the factory intake manifold becomes somewhat of a restriction. Sure there are many other restrictions in the pressurized turbo system but I would see removing any restriction as a gain in my book.

So lets recap: A ported intake when coupled with other mods can be a great investment to give a slight bump in HP/tq, help to control EGT's and really help the other mods function at full capability.

On a truck that is mostly factory, the intake manifold would be a great option for people fighting EGT's or with plans to one day get into bigger mods. As for supplying a huge seat of the pants difference in HP, there are other options that are less costly out there.

 

[f3502wd]

I volenteered to do this test on my own for those that were interested and my own curiosity Steve didn't ask me to do this.

Thats great to hear, thank you

 

[SleeperDuty]

I have to say rolling 20mph burnouts are fun...couldn't do that before.

 

[swinky]

Maybe I need one

 

[SleeperDuty]

Maybe I need one

Wouldn't hurt.

I'd really like to see someone with a bigger turbo(s) do a before and after test. I'm positive they'd see a bigger gain.

 

[SleeperDuty]

After almost a week of seat time I'm still pretty happy with the results. Not really a whole lot to say that hasn't already been said before. Spool up, responsiveness, egt's and smoke output have been improved upon and I'm really happy with the way the truck drives.

 

[Powerstroked162]

Right on Brandon! I'm glad you are happy with it. Thank you again for the help. Appreciate it buddy

 

[bigrpowr]

After almost a week of seat time I'm still pretty happy with the results. Not really a whole lot to say that hasn't already been said before. Spool up, responsiveness, egt's and smoke output have been improved upon and I'm really happy with the way the truck drives.

honestly, 20hp and all the other stuff for the price is pretty huge.

 

[swinky]

Ellerton swore that intake manifolds did nothing because the restriction is in the heads..... I guess he was wrong?

 

[04cr450]

He has point.. 6.0 heads stink flow wise. If u wanna do it right than yes u have to port and polish the heads along with the Intake.. just because the Intake flows more doesn't mean the heads will magically start flowing more. You can port and polish as much as u want in the intake but at the end of the day it still has to go into the stock ports of the heads, which is a dead end so to speak.

I say all this, I have a fully ported intake, egr everything cut out and didn't notice jack except drop in egts. I'd say after doing the no limit intake- these two mods are similar gain wise(manifold a touch more drop in egts ).

 

[MrOneEyedBoh]

Just on a side note, not only port and polish the heads but MATCH the heads to the intake so the two line up thus more of a venturi effect. Granted it's still a forced induction motor, Bernoulli's principle still applies...

 

[04cr450]

yes anthony correct. normally, if the engine builder knows what he is doing then the intake manifold will match the heads etc etc.

 

[borsky]

Ellerton swore that intake manifolds did nothing because the restriction is in the heads..... I guess he was wrong?

But when he built superblazins setup they put on a manifold...hmmm

 

[borsky]

He has point.. 6.0 heads stink flow wise. If u wanna do it right than yes u have to port and polish the heads along with the Intake.. just because the Intake flows more doesn't mean the heads will magically start flowing more. You can port and polish as much as u want in the intake but at the end of the day it still has to go into the stock ports of the heads, which is a dead end so to speak.

I say all this, I have a fully ported intake, egr everything cut out and didn't notice jack except drop in egts. I'd say after doing the no limit intake- these two mods are similar gain wise(manifold a touch more drop in egts ).

Obviously if the egt's drop, then there's more air getting in. Maybe it's mostly only to the back cylinder, and the pyro reads the whole bank and that's why there's less of a gain the expected by some.but it only takes one hot hole to burn it down. And if egt's drop then u can add more fuel and that will yield a lot more power. IMO