It's not one dyno run. 6 dynos runs were taken and then averaged. In order for another non-biased dyno chart to arise, they will have to follow my strict testing procedure. This is to ensure it's accurate when the motor is as hot as it can get. Not many people have the resources to spend several hours dyno testing these spacers. Most people will just do a single dyno run before and then wait a couple weeks, install the spacers, and then do another single dyno run. This is not accurate at all since the motor's consistency, changing weather conditions, and many other variables come into play. In order to be accurate, you must conduct the before and after testing within a few hours of one another, making sure the weather conditions are the same. You also must make sure the exact same warmup time, coolant temperature, and head temperature are recorded.

Also, it's normal for low end to increase as you lengthen intake runners. But it's great when you can increase low end power without sacrificing top end! That is why these spacers are so great.

There are many people that are still skeptical. But the numbers don't lie. I made sure that the most accurate testing was conducted. Not many individuals will be able to conduct this type of precise testing.

It would have been easier if I did a few dyno runs before and a few after and taken the biggest margin and make bogus claims. That is the way other performance shops make their dyno results. If I used that method, there would have been exaggerated gains. But I know that's not accurate. I refuse to false advertise my product.

I did 3 dyno runs before and 3 after with the EXACT same conditions and then averaged each rpm interval in order to come up with the dyno chart you see. Yes, it took quite some time to compile all that data. But I'm willing to do this much testing for the Maxima community.

 

ok it's ONE person's dyno run. i agree you did it in a very good scientific way eliminating ALOT of variables. also who knows what your connection is with him or the dyno shop. i'm not trying to down your product or say the dyno graphs lie. i just wouldn't buy it untill i see other people's dynos. 1 car's performance isn't enough for me to buy ANY HP adding product and it shouldn't be for anyone else. Also wouldn't it have been better to do it on a BONE STOCK maxima. not one with an Intake and Exhaust? i'd be curious as to how much it added on a stock maxima though i do agree most people doing this mod probably already have a catback and intake as those are the beginner performance mods enthusiasts do. but my buddy was like uhh i'm never doing an exhaust(cops hate exhausts where he lives $50 ticket and 2 pts on your license which end up being another 150 or so per year on your insurance get 4 in a year and you think again about having a catback) just intake and spacers. he was curious what the difference would be. once i see other's dyno's i'll be getting a set trust me the gains are GREAT for the price/hp assuming they are accurate.

also in your sig it looks like it LOSES -10 HP from the use of the - just a thought it's what i think every time i see it. i like the aqua blue though it's cute.

also wouldn't this negatively afffect someone who was trying to ice down there motor at the track as the spacer's don't tranfer heat. obviously this is a rare case but something to think about.

 

I know what you are saying. I appreciate your feedback. I am the owner and operator of Nissan Works and I am the one that does ALL the research and designing of these spacers. In fact, my business is a one man operation.

As for the test vehicle I chose. I chose this one because he had the two most common mods you can get on the Maxima. Intake and catback are the two most popular bolt ons. I figured if anybody was going to buy my spacers, the majority would already have intake and some kind of exhaust work.

Simply put, it doesn't matter what mods you have. You will still see gains with these spacers. You will still see a 40 degrees temp drop. Also, there are a lot of people that appear to be in the same boat as you. They want to allow a few people to test them out and post THEIR personal opinions and results. I completely understand that.

And with what you said about icing down the IM at the track. When you ice down the IM at the track, you are cooling the IM surface temperatures. Yes, you are cooling down the temp of the rest of the motor slightly. But as soon as you crank up the motor, the heads will IMMEDIATELY get to the same temp as they were before regardless if you had spacers or not and regardless if you iced down the manifold or not.

So, icing down the manifold will still help. But if you had spacers, it would just help less simply b/c you now have a MUCH cooler IM to start with before you laid the bag of ice on your motor.

 

I just wanted to let everybody know that these spacers are no longer on backorder.

The VQ35DE Phenolic Intake Spacer Kits are in stock and ready for immediate shipping.

 

Is it possible to make the spacers thicker and if so do you think it would any

 

Do I think it would help if the spacers were thicker? I have not tested this yet. I do plan to stack a few spacers in my 3rd gen and do before and after dyno runs just to see what it would do to my power curve.

If you need more than one UIM spacer, I can sell you an extra one along with the purchase of a kit. But I don't have any numbers to say if a thicker spacer helps or hurts.

 

would i get a deal on two or would it be cheaper to what far on ofer on a thicker one

 

I'm sorry. I don't understand what you mean. If you would like to order a customized kit, please contact me at XXXaaron@nissanworks.comXXX and we will work something out.

 

I don't think the reason they do so well in the low end is the temp, I think its because of the volume of air you an now take into your plenum and UIM. They definitely work though I will tell you that first hand. I developed my own, got ripped a new one on the boards and then wound up purchasing Aarons when he had them professionally made. They are good quality and they definitely give you low end power as well as lower the temp. Yo ucan actually put your hand on the plenum and not burn it after driving for a while.

 

as i said i'll be buying these once i get to see another dyno or two up here. if someone wanted to DONATE them to be. i'll be the second dynoer. *hint*hint*

edit:i think 2 stacked at the lower intake would be interesting....

 

I just made a purchase for a full spacer kit, I been wanting to do a dyno on my car as is and do another one with the spacers on.

I would have done this sooner but I been out of town for a couple of weeks. I'm looking forward to the spacers.

Thanks,

 

Thank you. Your kit will go out first thing Tuesday since the post office is closed on Monday.

 

Aaron, what parameters did you use on the 3.5 dyno runs on Homedyno? I am currently doing some testing and want to get it as close as I can before I install the spacers. I will also do some temp recording as well. Plus I plan on swapping out for the gutted IM as well as the Z one I have now that I have variable cam timing again.

 

Send me an email to XXXaaron@nissanworks.comXXX and I will send them to you. I want to keep this thread on topic. Or you can post in the 5th gen spacer development thread. I feel this question would be better suited for that thread. Thanks.

 

I got my spacer today, actually I believe its been probably sitting in my mailbox for a few days now. I'm excited to and cant wait to installed them, and when I get another dyno I will post it up.

Thanks

 

Thanks. You should have received the package late last week sometime. So I bet it was sitting in there for a few days at least.

Let me know if you have any questions.

 

Bump ...........

New pics added to original post.

 

I ordered a set today.

 

Thank you. Your order went out today.

 

mine should be ordered by monday WOOO HOOO ... u say it will take around 3 hours?

 

Yeah, it should easily take you about 3 hours. Some people that tend to work slow have told me it took them about 4 hours with breaks included. The most tedious part of the install is properly applying Black RTV on both sides of every spacer. Take your time and make sure you smear a beautiful bead around every port.

I have done this install a few times and it takes me just under 2 hours to complete it.

Please let me know if you have any more questions.

 

Bump! Spacers are in stock and ready for immediate shipment!

Visit www.NissanWorks.com to place an order.

 

Will I have any issues with my tower bar?

 

I have had very few customers have problems with their strut bar. If you do happen to run into clearance issues, just install a couple washers under the strut bar mounts to raise it up. Measure the clearance that you have between your elbow and your bar. The spacers will raise your UIM and Elbow by exactly 3/16" since you are installing a 1/4" spacer and removing a 1/16" thick stock gasket.

Please let me know if you have any more questions.

Also, feel free to read this thread: http://forums.maxima.org/showthread....514151&page=11. The 6th gen has less clearance then the 5th gen Maxima. I'm sure you will be ok.

 

So what is the general consensus from the folks that have bought so far? Are they worth it? Soonerfan? Puppetmaster? What say you?

 

Here are what the people are saying in other threads on Maxima.org:

http://forums.maxima.org/showpost.ph...&postcount=279

http://forums.maxima.org/showpost.ph...&postcount=452

http://forums.maxima.org/showpost.ph...&postcount=426

All I can personally tell you is what I found while dyno testing these spacers on the 5.5 gen. You should definitely feel a gain in low end and midrange torque. And best of all, a 40 degree temp drop in intake manifold temps!

 

I have no doubt that the temps drop considerably. I would like to hear about some one's independent dyno testing.

 

Nobody that I know of has conducted any dyno testing for these spacers. But, I did 3 dyno runs before and 3 dyno runs after the spacers were installed. With both dyno sessions, it was the same vehicle, same day, same weather conditions, and same warmup procedure for the engine.

I'll let other people post if they are reading. But if you have any more questions, please ask.

Thanks.

 

aaron check ur pm please

 

I haven't analyzed them just yet though (the DRF's)

From post # 29 -- the end. http://forums.maxima.org/showthread.php?t=510229

Just the fact that knowing your IAT's are much cooler is reason enough for me. Less chance of spark knock, which in itself is a plus.

 

sorry replying to wrong thread.

 

I have been trying to get a hold of you for a couple weeks now. Your PM inbox is full. I tried sending you an email but your email address on the org is invalid. I also tried sending you a PM on nycmaximas.org, but you haven't responsed. And I tried posting in your For Sale thread on the org, but you haven't responded. I'm sorry, but I've tried my best.

 

Bump .....

 

Bump... Aaron I will be talking with you soon. Thanks again.

 

Note to all NWP Customers: The new NWP Engineering die cut decals are in!

If you want a free set of decals for your car please email me at [aaron@nwpengineering.com] with your Maxima.org name, Full Name that you used when paying for the spacers, and a shipping address.

 

Here's a pic of the silver die cut NWP decals.