Versa Intake manifold photo & dyno results

[dynatek]

We have not weighed the new intake, but the factory composite intake is not very heavy, so we'd be happy to match the weight using the aluminum. As for your questions about the runner lengths and position of the throttle body relative to runner number 1, we'd be interested to hear more of an explanation of the question. Plenum volume, runner length and runner cross section have much more to do with the three forms of ram filling (inertial, reflected wave and helmholtz) than airflow. Each of the 2-inch runners flows nearly 350 cfm or more than enough air to support the entire motor, let alone one cylinder. We tested a number of different runner lengths, cross sections and even plenum volumes before deciding on this combination. It is important to know that we were able to produce the same power using smaller 1.75-inch runners and that the throttle body position has no effect on the power output. We know this because we made different plenums that positioned the throttle body at both ends and the middle, with absolutely no change in power. The math to calculate the helmholtz resonance wave based on the runner length and volume, plenum volume, inlet tube length and volume and 1/2 displacement of one cylinder is a complex one. The stock intake design is actually more for fitment and not to offset starvation of cylinder number 1.

[dynatek]

If you review the power curves, you will see that the new intake never made less power than the stock one. That means performance will always be as good as stock for any engine speed below where the new intake starts making more power. Since the power curve falls off rapidly with the stock intake after 5000 rpm, even the automatic versa will benefit from the gains from 5000 rpm to 6000 rpm. Given the long runners in the stock intake, it was difficult to design an intake that equaled the low-speed power of the stock (tuned for torque) intake while offering significant gains at the top o the rev range. During testing, we produced intake manifolds that actually produced more peak power, but they sacrificed power elsewhere in the curve. This combination turned out to offer the best overall power curve for both a manual and auto (or CVT).

[Skim302]

This is awesome news. I have honestly been waiting for a company like this to come up. I knew there was no way the turbo was gonna stop when zpi dropped out. I cant wait. But I would really like to be a price est. when its possible

[reyes1212]

This is awesome news. I have honestly been waiting for a company like this to come up. I knew there was no way the turbo was gonna stop when zpi dropped out. I cant wait. But I would really like to be a price est. when its possible

x2

[Kolk1]

If you review the power curves, you will see that the new intake never made less power than the stock one. That means performance will always be as good as stock for any engine speed below where the new intake starts making more power. Since the power curve falls off rapidly with the stock intake after 5000 rpm, even the automatic versa will benefit from the gains from 5000 rpm to 6000 rpm. Given the long runners in the stock intake, it was difficult to design an intake that equaled the low-speed power of the stock (tuned for torque) intake while offering significant gains at the top o the rev range. During testing, we produced intake manifolds that actually produced more peak power, but they sacrificed power elsewhere in the curve. This combination turned out to offer the best overall power curve for both a manual and auto (or CVT).

On that note, do you think there might possibly be a tuner in the works to allow A4 models, to go to 7500, that way fully utilizing the full strength of this manifold? If I had a M6, id be all over it, but with only a slight increase under 6k rpms, im not going to get much benefit.

[Skim302]

I know that there is talk about headers coming out for the versa and i was wondering would the manifold toally eliminate any need for headers? Becasue on the pic it looks like the manifold takes care of the headers. And would the manifold come with a custom cai or would i have to buy a aem or fujita?

[CodeRed]

It looks like the throttle body is in the same area. So you probably could use the stock air box with it...but why?

[jfanaselle]

I know that there is talk about headers coming out for the versa and i was wondering would the manifold toally eliminate any need for headers? Becasue on the pic it looks like the manifold takes care of the headers. And would the manifold come with a custom cai or would i have to buy a aem or fujita?

The header and intake manifold are very different components of the vehicle and would need to be replaced seperately. It's very easy to confuse the two, because on the stock set-up, they're both called a manifold (intake manifold and exhaust manifold). But in reality, one handles the air coming into the motor and the other handles the exhaust coming out, kind of like your arteries and veins in your body.

On our cars, it's even easier to confuse the two, because typically the exhaust manifold (or header once it's been replaced) is located on the front of the engine and the intake manifold is located on the rear, but our cars use a transeverse set-up like an Acura RSX.

Hope that helps!

[reyes1212]

yeah my Fit friend said that it was a bit funny how our manifolds are set up.

[dynatek]

The Versa intake was designed to run with either the stock air box or any current CAI. We did this to allow users to keep the CAI they have already purchased and allow the system to be tested for emissions certification with the stock air box.

[dynatek]

If someone could come up with a way to remove the factory rev limiter, we can revise the intake to take advantage of the available engine speed. Unfortunately, the stock cam timing would not allow this motor to run effectively at 7500 rpm, despite what we could accomplish with the intake. Given the design of the factory intake, it is difficult to better the power output of the factory manifold up to 5000 rpm without sacrificing power higher in the rev range. One of the designs offered 10-12 lbs. ft. of torque at various engine speeds lower in the rev range, but did not offer the gains from 5000-6000 rpm like this configuration. There is always a trade off associated with the intake design, unless you have dual runners or multiple resonance chambers (a la Porsche Varioram).

[reyes1212]

So does that mean that ind=stead of relining it during tracktime, to shift it at 5k in order to get the most out of the manifold?

[Kolk1]

One of the designs offered 10-12 lbs. ft. of torque at various engine speeds lower in the rev range, but did not offer the gains from 5000-6000 rpm like this configuration.

Do you still have that manifold? Id rather gain torque over peak hp any day. Seriously, if you still have the manifold that gave 10-12wtorque, Ill buy it from you.

[reyes1212]

Do you still have that manifold? Id rather gain torque over peak hp any day. Seriously, if you still have the manifold that gave 10-12wtorque, Ill buy it from you.

x2

[dynatek]

We might be interested in doing a second version of the Versa intake for those looking to have even more low-speed torque-though the factory intake was already designed for this purpose. I'll see if I can post the results of that design.

[dm2n1]

what management system will you use on this turbo kit??

[tyler_ofspain]

Are you offering an exhaust manifold as well or is that coming with the turbo kit?

[weems84]

So when are we going to see these items for sale?

[fxt2versa]

what were the afr's and was this done on 87oct

[MIdnkight-lude]

truthfully at this point, wouldnt running a shorter Intake runner be better. I dont know much about Intake mani, but it seem like a waste of material when your already going custom and non street legal. >_<

[CARI0CA]

Nice peak power. And very cool looking! But results are more applicable to racing. One would really have to rev the snot out of the 1.8 in street driving to take advantage, though. It would be nice if Nisssan offered the 2.0L Spec V in the Versa... Happy motoring nonetheless.

[dynatek]

I have my Versa going to AEM for FIC prototype, but we will use something else in the mean time. We have experimented already with altered MAF and larger injectors as well as water/meth. We feel this will be adequate for low boost and then can rely on the AEM FIC for elevated boost levels.

[dynatek]

We are working on a long-tube header as well as the turbo kit.

[dynatek]

The AFR was the same as stock since this is a MAF management system and this was run on 87 octane.

[dynatek]

The intake runner cross section, length and taper as well as the plenum volume were all tested and chosen to produce the desired power curve. Shortening the runner will literally ruin the power curve by killing any low-speed power. It takes a great deal of design and testing to come up with a design that matches the low-speed power of the stock intake while simultaneously offering the high-rpm gains. As for this being a race only piece, this intake will offer everything the stock intake does (including mileage) but offer additional performance thanks to the power gains. A race-only intake would offer only the high-rpm gains while sacrificing the low-speed power-not a god trade off for a street motor.

[Skim302]

Ok. Im not asking for an exact release date but do you think the manifold will be out by this summer? Because I know the headers and catback are scheduled for may I think and I would love to have everything except the turbo by the end of this summer.

[Demonspawn]

The intake runner cross section, length and taper as well as the plenum volume were all tested and chosen to produce the desired power curve. Shortening the runner will literally ruin the power curve by killing any low-speed power. It takes a great deal of design and testing to come up with a design that matches the low-speed power of the stock intake while simultaneously offering the high-rpm gains. As for this being a race only piece, this intake will offer everything the stock intake does (including mileage) but offer additional performance thanks to the power gains. A race-only intake would offer only the high-rpm gains while sacrificing the low-speed power-not a god trade off for a street motor.

yea i was wondering about the loss of MPG with this

[dynatek]

The Versa intake is being produced right now and we hope to have production pieces ready in 3-4 weeks.

[reyes1212]

omg that is so good

[manvan]

The Versa intake is being produced right now and we hope to have production pieces ready in 3-4 weeks.

that would be so awsome