175 Wheel HP Xb Dyno Results

[Dynatek]

During development of the new intake manifold for the 08 Xb, we decided to see what kind of power we could coax from the 2.4L. Along with the new intake, we installed a DME header, AEM CAI, dropped rear cat/resonator and installed a custom 2.5-inch exhaust. The result was a jump in power from 151 hp to 175 hp. We will post the gains offered by the new intake manifold shortly.

[2dot4]

Damn dirty tease! Sell me one already! lol

Those are pretty decent gains...I made 24whp on my 06 AT tC with Intake, header, s-pipe & axleback, and crank pulley.

Was this done on a 5spd or Auto?

[THansenite]

Wow, those are really good numbers.

[Dynatek]

Damn dirty tease! Sell me one already! lol

Those are pretty decent gains...I made 24whp on my 06 AT tC with Intake, header, s-pipe & axleback, and crank pulley.

Was this done on a 5spd or Auto?

Car was a 5 speed

[2dot4]

I will take one intake manifold please! Thanks! :mro:

[Krdshrk]

Not bad at all.. I/H/E setup.. is it a full exhaust? S-pipe and back?

[Dynatek]

Not bad at all.. I/H/E setup.. is it a full exhaust? S-pipe and back?

As indicated in the post, the 175-hp run was made with AEM CAI, new intake manifold,DME header, no cats feeding a 2.5-inch exhaust (stock s pipe).

[miketf1]

DME released the header for the 08 xB already?? or is this just the tC header modified in?

[2dot4]

I'm pretty sure it uses the exact same header - there's no reason to spend R&D to make a completely new header when you can use the one that comes with the 2AZ, and just manipulate the rest of the exhaust to fit.

I also noticed that it seems like the xb2 has a more efficient transmission. They're rated 6hp less at the crank than the tC, but dyno 6hp more at the wheels...

[Dynatek]

I'm pretty sure it uses the exact same header - there's no reason to spend R&D to make a completely new header when you can use the one that comes with the 2AZ, and just manipulate the rest of the exhaust to fit.

I also noticed that it seems like the xb2 has a more efficient transmission. They're rated 6hp less at the crank than the tC, but dyno 6hp more at the wheels...

The header was for a TC, but didn't adapt to the stock s-pipe very well-flange was different orientation so Xb header will have to be different. we just made it work for our test.

[Krdshrk]

Yeah just because it's the same engine doesn't mean it'll fit exactly the same...

[miketf1]

The header was for a TC, but didn't adapt to the stock s-pipe very well-flange was different orientation so Xb header will have to be different. we just made it work for our test.


damn... i wish the big header companies would get off their ass and make some headers..

[kris5597]

yea this is awesome. man if u put that intake manifold on a tc with the tsudo headers with a 2.5 exhaust with not cats, intake, ETD, and a lightweight crank pulley i bet that puppy would send almost 200hp to the wheels. thats so awesome. i want one really bad TOO!!!!!:deadhorse:

[Dynatek]

yea this is awesome. man if u put that intake manifold on a tc with the tsudo headers with a 2.5 exhaust with not cats, intake, ETD, and a lightweight crank pulley i bet that puppy would send almost 200hp to the wheels. thats so awesome. i want one really bad TOO!!!!!:deadhorse:

hope there is no confuision, but the power numbers supplied on the graph came from the combination of the new intake manifold, AEM CAI, DME, stock S pipe, no rear cat/resonator and a custom 2.5-inch exhhaust. The only thing left to modifiy would be underdrive pulleys. I dobut you'd see much more than 180 wheel hp if we added the pulleys.

[JoshCrane1]

i still want one!!!

[kris5597]

yea but the ETD would help send a lot of that crank hp to the wheels. just saying it would be very impressive with a n/a setup. i still really want one.

[2dot4]

don't neglect the tune! You could easily tune a new intake manifold and squeeze 15whp out of it - increased airflow volume efficiency needs a new fuel map for peak performance.

If you want a tC to test on, I have an e-manage installed, and I'm stock for now, so you could see realistic power gains over stock, then tune it for max potential. I'll drive my ass out to Nevada! lol It's only 22 hours away, but soooo worth it! lol - plus I want to get my gamble on! :Banane03:

[kris5597]

lol yea id love to see a tc with an emanage tuned with a n/a with that new manifold. slap a header back 2.5" exhaust with no cats, ETD, and crank pulley u got one fast ass n/a tc. would love to see that dynoed.

[Dynatek]

don't neglect the tune! You could easily tune a new intake manifold and squeeze 15whp out of it - increased airflow volume efficiency needs a new fuel map for peak performance.

If you want a tC to test on, I have an e-manage installed, and I'm stock for now, so you could see realistic power gains over stock, then tune it for max potential. I'll drive my ass out to Nevada! lol It's only 22 hours away, but soooo worth it! lol - plus I want to get my gamble on! :Banane03:

Actaully, the air/fuel curve was the same as stock with the new intake manifold design. Given the proper air/fuel mixture, the only thing left to tune would be ignition and cam (VVTi) timing, which might offer some additional power. The motor was pretty insensetive to changes in air/fuel, but might respond to the timing changes. BTY-The increase in power from the intake comes not from "airflow volume efficiency" but resonance tuning (3 distinct types in any manifold design).

[2dot4]

I guess I understand very little about resonance frequency when it comes to cars...I know that resonance frequency can destroy a bridge, but that's about it lol.

My understanding is that power comes from compression, air/fuel, and timing...and since you claim the air/fuel didn't change, I don't understand where the power comes from.

What did you guys gain from just using the intake manifold? cause I started to think that 24whp is pretty standard for intake, header and exhaust alone on a 5spd 2az...

[Dynatek]

I guess I understand very little about resonance frequency when it comes to cars...I know that resonance frequency can destroy a bridge, but that's about it lol.

My understanding is that power comes from compression, air/fuel, and timing...and since you claim the air/fuel didn't change, I don't understand where the power comes from.

What did you guys gain from just using the intake manifold? cause I started to think that 24whp is pretty standard for intake, header and exhaust alone on a 5spd 2az...

It might be difficult to see from the graph, but the power gains at 6200 rpm were 34 hp with the mods listed. We have never seen a TC or new Xb produce 175 wheel hp with just a CAI, header and exhaust mods. Rather than speculate about combinations producing abstract power gains, we like to provide real dyno numbers. I haven't seen any other Xb or TC combinations here with 175 wheel hp using just CAI, hdr and exhaust mods. If so, I'd sure like to see some power numbers. All we can provide is what the dyno tells us. That helps eliminate speculation and egos.

[miketf1]

yeah... this is a really hard graph to read cause its all in MPH on the bottom...

also, i am a newbie on scikotics and what company are you? i googled you guys and it looked like you guys were a dyno company.. who is developing the intake manifold? and is it possible for you guys to release a similar spipe that allows us xB2s to use the tC header?

[2dot4]

well yeah, it's 175whp over a baseline of 151whp - most tC's don't dyno 151 stock, they dyno 140-142 stock...and I've seen tCs with 165whp on I-H-E and crank pulley. Josh Crane is one example. You're using a dynojet, right?

I still want one - I just wanna see the dyno of the gains over stock - no other mods.

[Dynatek]

well yeah, it's 175whp over a baseline of 151whp - most tC's don't dyno 151 stock, they dyno 140-142 stock...and I've seen tCs with 165whp on I-H-E and crank pulley. Josh Crane is one example. You're using a dynojet, right?

I still want one - I just wanna see the dyno of the gains over stock - no other mods.

We will repost dyno runs with intake only after we test two more versions. This test was run on a Dynojet using a 2008 Xb. The intake will be produced and marketed by Dynatek Racing.