Boss manifold going on

[86merc]

Can't wait to see how this turns out.

The boss manifold and CJ manifold are upgrades until proven they arent, not the other way around. Numbers to numbers, specs to specs, everything points to the boss and CJ manifold making great power on the 2015, only thing missing are the results of testing and PROPER tubing the VCT for it. You can't swap the manifolds without tuning VCT. The stock VCT is tuned for the volumetric efficiency of the stock manifold, when you change the characteristics of a manifolds design and flow, VCT must change to accommodate the change in volumetric efficiency.

Tuning the VCT is what will truly tell the tale. Think of it this way, what happened to the car in the link I posted when they swapped from boss cams to the CJ cams? The car gained massive power. I can guarantee most of the power gained was from the camshafts, not the manifold. The car already had a boss manifold and moved to the CJ. The 2015 shares the same specs to those cams. Take a step back and quit thinking about the torque loss on the low end. If you lose 20 wtq at 3000 and it flattens the torque curve and it gains 40 wtq at 7500, that's a massive increase in how fast the car is, street, drag strip, or road course. More power equals a faster car.

Btw, the IMRCs have nothing to do with the power on the low end, at WOT, they are fully open, no matter the rpm. It's the manifold design and the BIGGER cams and valves that give the 2015 more power over the 11-14, at all rpm.

I had a 2011 with a CJ intake on it. It had a Boss intake before that. On the street the Boss seemed more 'laggy' than the CJ. Neither one of them made me hate driving the car around town. The CJ was crisp on the street and made good power. It ran 11.2 @ 120 in my car that had no weight reduction besides removed front sway bar and Weld RTS wheels front and back. Same set up with the stock intake resulted in a 11.44 @ 116. So the CJ helped for sure. The MPH shows the car was making more power.

I still have the CJ set up in my garage. At some point I hope that tune is there for trying the intake out on my 2015. I have access to two dynos and a buddy that is a SCT tuner. I just picked my car up Saturday and don't think I will do the CJ too quickly. Maybe someone will get the CJ on one of these cars sooner.

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[kris5597]

Can't wait to see how this turns out.



I had a 2011 with a CJ intake on it. It had a Boss intake before that. On the street the Boss seemed more 'laggy' than the CJ. Neither one of them made me hate driving the car around town. The CJ was crisp on the street and made good power. It ran 11.2 @ 120 in my car that had no weight reduction besides removed front sway bar and Weld RTS wheels front and back. Same set up with the stock intake resulted in a 11.44 @ 116. So the CJ helped for sure. The MPH shows the car was making more power.

I still have the CJ set up in my garage. At some point I hope that tune is there for trying the intake out on my 2015. I have access to two dynos and a buddy that is a SCT tuner. I just picked my car up Saturday and don't think I will do the CJ too quickly. Maybe someone will get the CJ on one of these cars sooner.

You should sell me your CJ setup and I'll do the CJ testing lol.

 

[86merc]

You should sell me your CJ setup and I'll do the CJ testing lol.

I typed up an ad on craigslist and a local forum. But never posted it. I figured I might regret it later. lol I have sold plenty of parts for a lost just to later turn around a buy them again at full price. haha

 

[kris5597]

I typed up an ad on craigslist and a local forum. But never posted it. I figured I might regret it later. lol I have sold plenty of parts for a lost just to later turn around a buy them again at full price. haha

If you let me borrow the setup, I'll install, get access to a dyno, do the tuning myself and reveal the results. That's a long shot, but figured I'd offer until I get the funds to buy a CJ setup. My goal is still 500whp n/a, on E85 if I have to.

Kris

 

[ero 5.0]

If you let me borrow the setup, I'll install, get access to a dyno, do the tuning myself and reveal the results. That's a long shot, but figured I'd offer until I get the funds to buy a CJ setup. My goal is still 500whp n/a, on E85 if I have to.

Kris

this is my goal too, but i think im gonna wait it out until i see solid results with a cj or a new s550 specific platform is released.

 

[RWStang04-14]

500 HP on N/A motor?

Do you guys think it is truly possible to put out 500HP N/A?

Long Tube Headers
Exhaust
Intake Manifold
CA Intake
Tune
93 octane

What about cams? What else can one do to reach these numbers. I'm no expert but 100+ HP with a few bolt-ons...:shrug:educate a brother.

 

[RubyRedBoost]

Guys are in the 460s with headers, JLT, and E85. Im sure cams and a ported head would get you their easily. This is what I want to do as well. For instance, I am running Corsa, SW catted headers, JLT, and put down 428/393. There's a lot of power left on the table. I would enjoy a 500hp N/A DD.

 

[RWStang04-14]

Guys are in the 460s with headers, JLT, and E85. Im sure cams and a ported head would get you their easily. This is what I want to do as well. For instance, I am running Corsa, SW catted headers, JLT, and put down 428/393. There's a lot of power left on the table. I would enjoy a 500hp N/A DD.

A 500hp DD is the goal here too. It would be awesome to get the much power NA

 

[mustang_guy]

Guys are in the 460s with headers, JLT, and E85. Im sure cams and a ported head would get you their easily. This is what I want to do as well. For instance, I am running Corsa, SW catted headers, JLT, and put down 428/393. There's a lot of power left on the table. I would enjoy a 500hp N/A DD.

ive seen around 450s on 93 with uncatted. Ive also seen 460s. Here


I believe a bit over 500whp will be doable without cams. Just some e85 and a manifold

 

[kris5597]

I think it's very possible to get 500whp with E85 if you have intake, CJ manifold and throttle body, 47lb injectors, long tube race headers, and exhaust. Completely stock longblock. With the RIGHT tuner. Our stock heads, valves, and cams all have the specifications to do so IMO.

Kris

 

[V8EATR]

I think 500whp is possible on the stock long block. Will require, intake mani, full catless exhaust, e85 and ewp. The 11-14 cars were seeing 470 with all the same mods and the 15's definitely make more power, just gonna take someone with the drive to do it na.

 

[ero 5.0]

my last dyno was 460 with my current mods. I dont think a CJ or s550 platform specific manifold will get me to 500, but hopefully close. 500 N/A was my goal as well.

 

[mustang_guy]

my last dyno was 460 with my current mods. I dont think a CJ or s550 platform specific manifold will get me to 500, but hopefully close. 500 N/A was my goal as well.

Don't take this the wrong way but your intake is not the highest HP producing compared to others and I wouldn't be shocked if your lower budget headers had something to do with it. Also who knows how aggressive Lund set you up. Also dyno variables and DA all matter. Personally id look at a trap speed goal instead of hp figures.

 

[ero 5.0]

im not drag racing my car. its just a street toy. I dont feel like dumping money on half shaft upgrades. And the "lower budget" headers have been proven to produce just as much hp if not more than any of the other more expensive options. I hear ya on the CAI though, I impulse bought it when it first came out when there werent many other options out there. Ive been thinking about switching to a painted JLT.

 

[Blk2015GT]

Realistically 500 at the wheels will be tough. Tune/CAI/headers/exhaust people are seeing 450-460.

I doubt a CJ or Boss manifold will get you there from that- and even if you slap on a CJ or Boss does having 480 at 6500 RPMs really matter for a street car? It's not giving you true usable power in the range you drive in normally for the money those options cost. Sure you can say you have 480hp and its a number on a dyno chart, but youll never feel all 480 unless you constantly rev over 6500 RPMs; which i doubt many do unless you are tracking it.

Personally for a pure street/daily driver car I dont see the Boss or CJ adding much value to usable hp. You're better enjoying those 450-460 at the wheels (which is still 500+ at the crank) and saving that $1,000-1,500, or just going all in and go forced induction for the cost it will take to get you to 500 usable streetable horsepower naturally aspirated.

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