Longer runner should give better midrange power and trq....moreso with N/A cars vs. F/I. You bring up a good point, and I am not 100% sure....in regards to the specific question about the SC. In the middle to top end...with an SC...shorter runners would help....as they would help with a TT.

 

I ran the GB for their first batch of V4 plenums and have asked ISDUNIQUE to allow me to do it again. So we will see.

 

Most will probably agree they are excited to see Kinetix finally announce the availability of this intake. Testing has been an awesome experience. During testing, those that saw the intake, those few that had an opportunity to get behind the wheel or just look at numbers were very impressed. As Barzten1 posted...It's for real!

Within the next few weeks how many will be purchased and installed? Can it be improved upon? Probably. Will someone try? Yes. They will probably take some, if not all of the recommendations made on both threads over the past couple of days and incorporate them into a new intake. Will it be better? Perhaps. How long will it take? Who knows. I for one, was very happy with the V1, V2, V3 and V4 gains, but am extremely happy with the gains of this new intake.

 

LSDunique will have to post a thread on it in the vendor classifieds then and say that you will be running it.

 

Also remember, that tested was a prototype, and the final product will be much more refined.

Smoother internals, ported where the runners hit the main flange, fully TIG welded, etc.

We may also offer bung upgrades, for nitrous ports, possibly injectors , etc.

The final product will come with 1 additional unused 1/8" npt port for gauges, etc.

 

My question is how much of the gain was simply due to a leaning out of the A/F ratio.

--Steve

 

Don't believe I have posted this on any threads on this site. A/F recording stopped at approximately 6750 rpms. A/F ratio leaned slightly, but not enough to account for the gains.

 

It's hard to tell from the graph, but it looks like the A/F ratio went from around 10.0 to 11.0 at the comparison measurement point--approximately 1 point. All I'm saying is that some of the gain is due to the leaning out. Furthermore, if someone already had their Vortech tuned to an A/F ratio of, say, 11.5 they would obviously have to retune after putting on the plenum to stay in the safe zone. I would NOT expect them to see a gain of anywhere near 50hp once they retuned.

But please don't take this as a flame. I'm using an aftermarket plenum myself. I just think that there are a number of people following this thread who are going to have overly-lofty expectations based on your results.

--Steve

 

Steve, did not take it as a "flame". I will just provide whatever data I have as I am the only one that has FI data. I agree, graphs are hard to read. If you look at my signature, you will notice that I have Zeitronix Wide Band. I consider it far my accurate than taking A/F readings at the end of the exhaust.

So, I went into the datalogging info I had to take a look. Keep in mind, as you move the scale it is quite difficult to capture exactly the same data from the same RPM when using different sources (i.e. V4 and Intake Manifold). But I am close.

Kinetix V4:

6031 / 10.90
6295 / 11.00
6400 / 11.00

Kinetix Intake Manifold:

6008 / 11.10
6287 / 11.20
6411 / 11.20
6611 / 11.40

If you have a comparison point you would like to see, just ask and I will see what I have. This was from pull #1 with both. Might have to go to another pull if higher rpm data is wanted.

 

Have there or will there be any flow bench tests to see if the distribution of air from the first runner to the last are equal at twin turbo air speed?

 

Here is a Veilside intake manifold & larger throttle body review with dyno for a Supra' s 2JZ.

http://www.sp-power.com/media_turbo%...ANK%200403.htm

I know we have a drive by wire system to consider but has Kinetix thought of providing something alone the lines of a larger throttle body with this intake? Perhaps one that uses parts of our existing one to retain the electronic control.

Or a different version / option of this intake to have larger initial piping to mate up with a larger thottle body?

For reference I am aware of the 350EVO throttle body.

 

I would like to see the a/f charts from both the before and after runs. A Centrifugal blower equipped car shouldn't drop off in power up top unless the tune is terrible. It seems the new IM leans out the car up top to about where it should be, but where was the a/f on the before dyno at?

 

It will interesting to see results on a TT, the results on the SC show increased power up top as you hit max boost but since the TT hits max boost a lot sooner the power increase should show up sooner.

 

When is this thing coming out?

 

This month.

 

what does it sound like in comparison to stock or the normal kinetix plenum?

sound meaner?

 

Meaner? Yes! While driving you probably won't notice much difference, however I can only speak from V4 to new. More howl, where as the V4 is a growl. You will hear the air rush. You will also notice an increase in throttle response.

I have to assume the intake is more efficient. Why? I drove it hard for a couple of weeks. Went through a couple tanks of gas. Several WOT runs to 120-130 mph, noticed that mpg iincreased to 18 - 19 mpg. With V4, under normal around town driving, with very few WOT runs, 17 mpg.

 

what's the plenum volume and runner length on this thing?

 

I agree, in NA form the sound is slightly louder than stock.

The V4 plenum has a growl to it, this manifold sounds simply like larger amounts of air rushing in. You basically hear the air flow more than stock is how I would describe it.

 

is it coming out soon? I am building my engine this month. Will be good to get this in addition.