:gtfo2:

I've only heard of this happening to one person. His intake was by the floor and he is a complete idiot. Just like the radiator obstruction, this is a nonsense worry. Just stay out of the ocean and lakes...

and before someone asks...because this was asked in the subaru forums once....it doesnt matter if its "man made water"

Really great numbers, RCZ, I admire your in-depth write-up! What's your assessment on how this VQ is making all this power with simple bolt-ons? Did Nissan really leave that much room at the factory or what? I know this was discussed on an earlier thread- about what numbers we could expect to see- but now that you've tested some of the products out there, where do you see I/H/C/E and tuned NA 370z's topping out at?

S.

After seeing how the car is behaving and at the risk of being embarrassingly wrong... I would estimate that after basic bolt ons..we will be looking at a little over 300WHP on a mustang dyno. With some luck I will hit my target 315WHP, but I don't think so. No one has a COMPLETE exhaust setup yet. Everyone is missing either one or more components from their results; the most promising of which are Semtex's results of 291WHP from a Berk HFC and the STILLEN catback. I would say you can find another 10whp+ with the headers. Add the effect of the intakes and hopefully that will round out a more free flowing intake/exhaust system.

With a tune, I will out on a limb and say that 315WHP is very attainable.

RCZ, I think you might be underestimating the potential. Keep in mind that the 291WHP was on a Dyno Dynamics. That should already be over 300WHP on a Mustang. The conversion factor is around 1.11 (from what I've been able to find on the net). Which means all things equal, 291WHP on DD = 323WHP on a Mustang. In any case, I've got two dynos scheduled for tomorrow. One back on a DD, and the second on a DynoJet so that we can get some comparative numbers. I don't know of a shop in my area with a Mustang dyno, but we can at least get an idea of what the conversion factor is between Dyno Dynamics and DynoJet. As you already know, Mustang will be somewhere in between DD and DJ. (The conversion factor from DD to DJ is supposedly 1.18. We'll find out how accurate that is by tomorrow!)

Ben, what did you get for your baseline again? I think you are thinking the DD reads a lot lower than it does. I think the DD and the MD are close. You are not making 323WHP on a Mustang...that's craziness.

DD is usually the lowest reading dyno but it can all depend on how it's been configured. Unfortunatly, they're not all equal.

I, for one, could care less about the numbers themselves but more about the gains over baseline. Over the next 3-6 weeks I will be conducting a full baseline and modded dyno chart on a dynojet. The more and more I read about how well this motor is taking to mods the more I hope to achieve 40-50whp NA.

My friends 335i just dyno'd 360whp on our friends dynojet, and his car is a beast from the pulls we have done thus far. I'll be happy for 315-330 on the same rollers.

DAMNNNNNNNNNNNNNNNNNNNNNN RCZ...im loving these results. just called the gf and working on my early bday present haha!! congrats on the install. i wanna see them in real life. maybe do a run or two. hopefully we can meet up soon. i ll be back in west palm in two weeks. keep in touch man.

i've always had the understanding that the Dyno Dynamics will give you the lowest numbers of them all....which is why its called the "heart-breaker" :ugh2:

I never did a baseline, but we ran a baseline on bullitt5897's stock Z right before my run on the same dyno and he got 254, remember? As for number comparisons between the different dynos, I'm just applying the information I found and posted to your http://www.the370z.com/vq37vhr/2199-...html#post46179 thread. Specifically, I'm going by this part:

"The closest in numbers (at low HP) is the mustang, but using the above example, the same 300hp car was dyno'd back to back on a Dyno Dynamics 450 LowBoy (what we have) and a Mustang AWD500E (what some other guys have), and that 300hp rated car consistently read 223 on the Dyno Dynamics and 249 on the Mustang. One hour apart, exact same car, same town, same altitude, etc."

If you do the math, 249/223=1.11659. i.e., 223 x 1.11659 = 249 (rounded). So if these numbers are correct, then take my 291.7 on DD, multiply by the same, and you get 325.7 (I was only multiplying by 1.11 when I said it comes to 323).

But I think emphasis has to be placed on the if in "if these numbers are correct." And that's why I'm getting two dynos today -- one on DD, and one on a DynoJet. You see, that same article says that you multiply a DD number by 1.18 to get an approximate DynoJet equivalent. Well, I want to see if there's any validity to that. I want to see if it's even in the ballpark. It'll at least tell us whether or not that article has any credibility. Don't get me wrong -- I'm not saying that if it turns out that their multiplier for DD to DynoJet is correct that we must therefore automatically consider their multiplier for Mustang to also be correct. I'm just saying that this is a first step in assessing the basic credibility of the information in that article.

I don't want to sound disrespectful at all Semtex, but I don't think those numbers are really accurate. The conversion factor I mean. Its too high. I am really glad you hit 291WHP, but its a stretch to say you are making over 320whp on a MD. Who knows though, I hope you are right and we are getting absurd power out of pipes. I dont know though...I wouldn't bet the farm on it. Not trying to put you down at all, just my opinion.

I'll know soon enough.

^^u got a farm too? lol. i thought i was the only one:tup:

We're actually on the same page, RCZ. We are in complete agreement. I too am very skeptical of those conversion numbers, which is why I'm going to the trouble of taking the time (and expense) of doing comparative dynos later this afternoon. Look, when everyone else sat around scratching their heads wondering how to compare numbers between different dynos, I'm the one who took extra time to search for info on the net and found that article. Now, in the absence of better or contradicting information, all we can do is take the information in that article at face value, which is what I'm doing with my calculations. But taking those numbers at face value doesn't mean we set aside our common-sense skepticism when the calculations yield results that are hard to swallow. So while some other people (not you) have been 'contributing' to the discussion by sending me ever-so-constructive comments like 'There's no way!' or 'That's BS, I'm not buying it!', what am I doing? I'm taking it to the next level by going out and actually getting two different measurements on two different dynos. I'm taking a half-day off of work to do this, and I'm doing it with money out of my own pocket! These people who call BS on the numbers, are they actually presenting any contradicting evidence to refute what's in that article? Are they making any real, constructive, contribution to the discussion? Of course not. They're just flaming like a bunch of haters. Meanwhile, I'm going out and doing the leg work of getting real comparative data.

I sincerely hope the other members of this forum appreciate what I'm doing to help build a better knowledge base for us all. If others are just going to sit around shooting spitballs at me (figuratively speaking) while I'm going out and doing the heavy-lifting, I'll just keep my data to myself and PM it to others who actually contribute constructively (like yourself) rather than post it for public consumption. There's no law that says I have to share my data publicly, after all.

Sorry for the rant, RCZ. It's not aimed at you personally at all. Like I said, I see the two of us as being on the same page. Indeed, I see us as collaborating with each other, not competing with each other. But you should see some of the comments I get via PM or via YouTube. It's ridiculous the amount of insults to my integrity that I have to put up with when all I'm trying to do is help others. I even get people accusing me of deliberately misconfiguring Sharif's dyno to inflate my numbers! It's unbelievable, and makes me question why I bother to share my results.

All the haters need to just :gtfo2:

^^i think we all appreciate what u are doing semtex. and of course you too rcz for getting as many mods on as possible asap and dynoing them. thanks for having all teh fun!!

I think what you are doing is great, and I'm even willing to pitch in to help fund your dyno tests.

YouTube is a joke, it's just a flame fest. You shouldn't even read comments there. Keep the discussion here amongst the enthusiasts, those that sent you stupid PM's will be eating their words soon enough.

Youtube is basically 1 step up from 4chan imho :icon17:

And we do appreciate all the dyno research. I really wish I could do before/after dynos on all my stuff, but I'm going to have to settle for dyno+tune once after all the major mods are in place, so having all this extra comparative data is really handy.

^^ya it is. i posted a video when we had a koenigsegg on our hands, and some of the comments were like ******* arabs...he must be a sheikh or something. then one guy is like ya thats the prince of Dubai. well, im brown, but im not arab, and well...its just funny to read these comments. ignorance is...bliss is not first word that comes to my mind--more like frustrating

As I'm sure you've found from some of my posts, I'm quick to call out BS. You are doing a lot show-and-tell on here that douche bags on Youtube and the like simply cannot see (and for some jealous ones, don't WANT to see). Dont even waste your time defending yourself on there.

You're doing good work, and there is no shame in that. Ignore the morons and press on.

Semtex, either ignore the comments, or turn them off. It is an option on youtube :)

I know we are on the same page and I appreciate that you are doing legitimate testing the same way I am. Dont worry about what the few say... for every one stupid comment you get, there were another 300 people that learned something and found your information useful.

I am really eager to see what you get on the other dynos. If you get as much as you think you're going to get on the MD, then I'll have a party and everyone here is invited :)

My dyno results are in. Those conversion multipliers are garbage if my comparative dyno results are any indication. :icon14:
Details here -> http://www.the370z.com/intake-exhaus...html#post50503

Keep on posting the data i do not have the cash or the tools to test any product. Relying on you and RCZ since your ablity to get these things done are greater than mine.

and forget those haters, there issue is one of jealousy i suspect. That and you have a 300+rwhp z as a end result you lucky bastard hehe.

Nothing but respect for RCZ and Semtex from me. I appreciate the amount of info they are giving us.

All respect for RCZ and Semtex for the Greet things we have learned from you .

Someone has to have all the fun :)

You guys are very welcome.

For any of you who may still have concerns about these intake filters obstructing air flowing to the radiator -- I was changing my oil tonight and right before I was about to bolt the undertray back on, I happened to look up as I was laying underneath the car, straight at the filters. I yelled for my wife to hand me my camera. As you can see from the pictures below, there's plenty of room behind the filters and air isn't being blocked from the radiator at all. Hopefully these pictures will put this concern to rest once and for all.

http://www.the370z.com/members/semte...h-radiator.jpg

http://www.the370z.com/members/semte...rneath-car.jpg

http://www.the370z.com/members/semte...rneath-car.jpg

Excellent pictures, plus rep.

Thanks Semtex!

Wow, that helmet-cam you bought is really paying off! :tup:

Warranty void concerns
 

Hey all, I was looking at ordering this bad boy in the next day or so to have it here and ready for the track by next weekend! My only cause for concern is where does this stand with potentially voiding the dealer warranty? I've only had the car for a few weeks now but I got a 6 year warranty on my car that I'd kinda like to keep. So Im looking for simple effective mods to do to my car for now that will keep my warranty in tact but still provide considerable power gains and lots of fun!

Looking forward to feed back, thanks in advance!

I don't think anyone here can give you a definitive answer one way or the other. I for one would hate to tell you that it won't affect your warranty, only to be proven wrong down the road as it'd cost you money. Perhaps you should read all the fine print and/or consult with the warranty people. Just my 2 cents.

Magnuson-Moss Warranty Act - Wikipedia, the free encyclopedia


A dealer cannot deny warranty simply because you have changed a part. Basically, a dealer has to honor the warranty unless they can prove the part you changed caused the fault. e.g. altering your wheels & tires should not effect a warranty claim on the a/c. This sounds straightforward but often things fall into a gray area. For example, supercharging the engine and then trying to warranty a transmission failure. Did the transmission fail because of the extra engine power? Much depends on the relationship with your dealer.

Nissan has a three level approval process for major warranty items... dealer, regional, corporate... dealers are the easy ones, they are financially motivated to do warranty work they do not bear the cost of the work

We have a great relationship with Nissan, and there are countless dealers across the country that upfit their cars with STILLEN products.

In fact, it's common to be able purchase the car with STILLEN products already installed.

STILLEN is well known at the Nissan dealership level..

Thanks a ton Josh, thats what I was looking for! Gonna order this baby tonight so that I have her installed by next weekend for the Southern Invasion hopefully! Whats generally the quickest I can get it delivered if Im stationed in NC right now?

They are in stock.. if you've got the bling we can overnight them.. shoot me a PM with any problems.

Thanks for the order!

I got back from Iraq in Dec, bling isn't much of an issue! Should I order online or call in?

Either is fine.. you can order online, and put in some notes. I'll get with Margaret (handles online orders) tomorrow and we'll get you taken care of..

Awesome look for an order for Matthew Cobb

Very cool that Stillen is handling customer concerns and orders on sunday afternoon. Don't see that often enough these days.

Order is placed, I chose the 3 day method since I really only need it by Thursday to have it installed Friday on my day off. Thanks for the help Josh!

Enjoy it :) I swear I think my car is still gaining power.