Can You Say Powah?!?!?!: SFR manifold dyno tested.

[TUKO]

Please fellas do not pm me and ask me anything or post this elsewhere. All questions should be asked here in this thread.


I was fortunate enough to have the first SFR High Velocity Manifold put on a N/A vq35. From what Tim at Speed Force Racing told me this manifold is slightly different from the manifold made for forced induction cars.

I have had the manifold for months. When I first received it I was impressed with what i saw. The design is wicked and looks WAAAAYYY better than stock. It took me a while to slap it on at first because i had to find and purchase the correct barb fitting to hook up the vacuum hoses. At first installation was a bit time consuming because I didnt know what I was doing. I have installed the manifold on and off about 6 times already so installation for me is under an hour.

The sound is pretty cool. At low revs during soft acceleration your hear a humming/growl from under the hood. Under hard acceleration the engine sounds great! it isn't loud and obnoxious. Its more of a deeper growl, nothing too crazy or far from stock, but noticeable.

At first I could only go off of the butt dyno and my butt dyno liked what I felt. To me the mid-range was increased a lot. I knew the torque was increased a lot (dyno showed 10wtq at peak). Up top the car felt great as well. My car just easily pulled to higher rpms. I could definitely feel the car breathing MUCH better. Even while cruising at lower rpms the car had sooo much better response.

Here are some pics of what it looks like on my car:




The point of me getting the first manifold was so that i can compare the SFR manifold against the stock manifold. So I made an appointment at my local dyno and tested the car THE SAME DAY AT THE SAME DYNO WITH NO OTHER CHANGES OTHER THAN THE MANIFOLDS. The first dyno runs I did was with the STOCK NON-SSIM manifold with the NWP block off plate installed. The second set of dyno runs I did was with the SFR manifold installed with no other changes made to the car.

Here are the dyno videos of the stock manifold with VIAS delete:






Here are the videos of the SFR manifold:

[TUKO]

Some graphs got mixed up at the shop but I managed to get the most important ones. The graph shows the highest dyno from the stock manifold with the highest dyno with the SFR manifold. the other graph has the highest stock vs. a couple runs with the sfr manifold but also shows the torques as well.


you can see the torque drop off on the run with the stock manifold

Heres the money maker:

I picked up almost 30whp at redline alone.

I was amazed at how much power was picked up at redline. this isn't your average ssim dyno graph only showing gains up top. You can clearly see there are gains on the ENTIRE powerband. Peak rose 5whp (wish it was more). whats important here is the area under the curve. midrange you can see ~12whp gains as well!

I like this manifold very much! yes its not a cheap mod but for the overall power its worth it. It adds power power where cams don't and cost half the price. Plus install isn't that hard. To me it was well worth the money spent.

[Leathe of Heaven]

HAHA! I WAS RIGHT!

That is totally cool! Now how much is this N/A version of this manifold going to be? Same price as the turbo?

Any dyno sheets of the stock intake manifold?

[TUKO]

Best bet is to ask Tim about price.

[Leathe of Heaven]

What worries me most is that you have the Technosquare F-Spec reflash. From my own experiences those are tuned semi-aggressively. A modification like this coupled with a reflash which is already pre-tuned to run leaner could give higher results as compared to someone putting this on without a tuning device/reflash. So you should add that for BEST results a tune should be the next step. I think without a tuning device, the gains might not be AS GOOD but still GOOD in the end. Are you still running stock internals or have you bumped up the compression at all?

I'm REALLY curious to see what's inside. Did they use velocity stacks or tapered ends on the runners? I see they did a little more R&D on the runners and kept the length (for each specific cylinder) close to stock, or at least kept the additional length added to the runners proportionate. Better then Kinetix who put all their runners at the same exact length.

Do you have any A/F graphs for the runs?

[TUKO]

Stock internals.

At the shop while I was getting dyno'd I was told 2 things.
A. Get a velocity stack and it'll add 10whp
B. Get a tune and add another 10-15whp.

The graph is on a smoothing factor of 5. With a smoothing factor of 1 the graph is really really wavey especially up top. I was told that the more waves in the graph the more I need a tune. Down low it was pretty smooth but most of the waves were higher in the powerband. The manifold and gutted cat were not included in the mod list when the reflash was done 4 years ago.

[Leathe of Heaven]

Originally Posted by TUKO316

Stock internals.

At the shop while I was getting dyno'd I was told 2 things.
A. Get a velocity stack and it'll add 10whp
B. Get a tune and add another 10-15whp.

The graph is on a smoothing factor of 5. With a smoothing factor of 1 the graph is really really wavey especially up top. I was told that the more waves in the graph the more I need a tune. Down low it was pretty smooth but most of the waves were higher in the powerband. The manifold and gutted cat were not included in the mod list when the reflash was done 4 years ago.

A. I agree completely. A velocity stack at the end of the tubing would really open up the remainder of the intake.
B. Get a "re-tune." 10-15WHP might be.. a little high. Maybe in certain regions, but not an entire 10-15WHP difference across the entire board.

My F-Spec was only tuned for CAI/Headers/2.5" exhaust. But I had a 3" exhaust, WAI and SSIM in addition. My A/F stayed within 12.8:1-13.3:1. That's the thing, without knowing your A/F ratio during the runs.. I can't make a judgment call on whether or not this modification responded so well just because of the manifold or because of the accompanying modifications that you have made. But the overall response is still VERY impressive. Someone like whore*jay or myself could really benefit from a modification like this.

Were the runs done in 3rd or 4th gear?

Also why was the correction left at uncorrected? SAE? I know this was just a comparison dyno, so it's not important.

Thank you TUKO for taking the time and money to actually get this tested. Glad to see at least some willing to do this.

[KeVQ35]

Wish you had a chance to do an SSIM vs. SFR's setup. Also was curious as to what was going on with the different intake setups; noticed on a few runs, you had the CAI and in others your intake piping was sticking out--what was going on with that?

[Leathe of Heaven]

Originally Posted by KeVQ35

Wish you had a chance to do an SSIM vs. SFR's setup. Also was curious as to what was going on with the different intake setups; noticed on a few runs, you had the CAI and in others your intake piping was sticking out--what was going on with that?

Ram-Air maybe?

[KeVQ35]

Originally Posted by Leathe of Heaven

Ram-Air maybe?

I was wondering if that got the most WHP on the dyno; I would figure this to be the case. vq35altima (Tony) did this when he raced me, just left the MAF with the screen way back in the day; crazy, but that's what he did at the track for a while, until his MAF died.

[duaner]

Wow! Nice work Tuko! Sure looks pertty.

[cookaroo]

Well thats going on my new vq, thanks for takin the time to test the thing out.

[Leathe of Heaven]

Originally Posted by KeVQ35

I was wondering if that got the most WHP on the dyno; I would figure this to be the case. vq35altima (Tony) did this when he raced me, just left the MAF with the screen way back in the day; crazy, but that's what he did at the track for a while, until his MAF died.

That's what another member on the boards is doing with his velocity stack setup. Looks mean, that's for sure! I would do something similar on my car only at the track. A filter is fine for daily driving, etc.

[ducz24]

GJ Tuko...damn thats a good gain... wonder how this would react on a non-header car...

[Supermanrox305]

Okay lets say you raise your rev limit to 7200 would this manifold continue to make power at that rpm?