Nissan 370Z Forum
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Nissan 370Z Forum (http://www.the370z.com/)
-   Intake/Exhaust (http://www.the370z.com/intake-exhaust/)
-   -   R2C intake dyno'd ... ever? (http://www.the370z.com/intake-exhaust/39939-r2c-intake-dynod-ever.html)

Nick911sc 07-26-2011 04:50 PM
Quote:
Originally Posted by jpit (Post 1231495)
I have the R2Cs but have never dynoed them by themselves. I have the Modshack vent mod and often monitor the air intake temp and it is usually about 8 degrees above ambient temp so the vent is doing its job. It is very hard to duplicate airflow on a dyno even with large capacity fans. When the G3 was originally tested by a well-respected tuner there was a significant difference in the power produced with the bumper cover off and when it was on. I am skeptical of dyno results on intakes because you cannot reproduce highway driving and the ecu is very tempermental with rising intake temps.
So are you saying that the R2C's in the real life have no gains? loss of power?

FL 4Motion 07-26-2011 04:57 PM
Quote:
Originally Posted by jpit (Post 1231495)
I have the R2Cs but have never dynoed them by themselves. I have the Modshack vent mod and often monitor the air intake temp and it is usually about 8 degrees above ambient temp so the vent is doing its job. It is very hard to duplicate airflow on a dyno even with large capacity fans. When the G3 was originally tested by a well-respected tuner there was a significant difference in the power produced with the bumper cover off and when it was on. I am skeptical of dyno results on intakes because you cannot reproduce highway driving and the ecu is very tempermental with rising intake temps.
I don't disagree, but unfortunately there are only 2 real ways to figure out gains, dyno before and after pulls, and 1/4 mile trap speed and times before and after, both those methods have pros and cons.

jpit 07-26-2011 05:13 PM
I think that the R2Cs did produce gains but never tested how much. I think that it is important to get as much cool air to the filter as possible and highly recommend the Modshack vent mod for any intake you are using. When I stop for a red light, the intake temp rises pretty quick but as soon as I accelerate it is back to normal within a few seconds. By the way, the filters themselves have a great reputation and obviously are very easy to clean and no need for oil. I just read the dyno report on the G37 and he seemed to gain significant power

Nick911sc 07-26-2011 05:22 PM
Do you see these intakes giving more of a gain than the K&N drop in filters that someone showed around 4-5 hp?

Chriz 07-26-2011 08:09 PM
Quote:
Originally Posted by Methodical4u (Post 1228263)
Not to be a jerk but a G37 is not a 370z... the G37 with that intake yields similar results as the Stillen G3's which no SRI set-up has done on the 370z's yet. Please just simply don't answer if you don't know what the answer is.
The top secret intake had similar gains compared to the G3's and its a SRI, but the price is not justifiable.

I also think the intake system in the g37 is quite similar to the 370z in terms of airflow so I don't think g37 dyno charts should be completly ignored. If you look at the inlet holes for the stock filter by removing the front bumper of a g37, they are shaped just like the Z's. I would even go as far and say that the parts such as the filter box are interchangeable, although I may be wrong.

TonyBPD 07-26-2011 08:16 PM
I love my R2C! Butt dyno approves. My car will go on the dyno once I receive my ART pipes.

Methodical4u 07-26-2011 09:41 PM
Quote:
Originally Posted by Chriz (Post 1231789)
The top secret intake had similar gains compared to the G3's and its a SRI, but the price is not justifiable.

I also think the intake system in the g37 is quite similar to the 370z in terms of airflow so I don't think g37 dyno charts should be completly ignored. If you look at the inlet holes for the stock filter by removing the front bumper of a g37, they are shaped just like the Z's. I would even go as far and say that the parts such as the filter box are interchangeable, although I may be wrong.
I know the engine and such is the same... what I am saying is that each car flows air over it differently... the SRI's do not seem to yield results as well as on the G37's PERHAPS because the air flow on the Z is different in that it does not get the R2C's the same way... that is why I am asking for a dyno of a 370z... I don't want a G37 dyno ... I am looking for a stock Z with a baseline and then these intakes. Otherwise, the Stillen is still king for the Z.

Methodical4u 07-26-2011 10:16 PM
Ok, I emailed R2C about their intake. I don't want to post what I got in return from them until I have their permission to share it... I feel they deserve a chance to state their case and then I will ask them if they approve. I will say that they responded quick and that he didn't try to blow smoke. I will quote this part of his email.

"We were able to bring total restriction down by almost half when
replacing the factory intakes and the corresponding gains in power were
reasonable"

I was impressed that he didn't try to sell me on them fake massive power like some companies would do.

FL 4Motion 07-26-2011 10:22 PM
Quote:
Originally Posted by Methodical4u (Post 1232010)
Ok, I emailed R2C about their intake. I don't want to post what I got in return from them until I have their permission to share it... I feel they deserve a chance to state their case and then I will ask them if they approve. I will say that they responded quick and that he didn't try to blow smoke. I will quote this part of his email.

"We were able to bring total restriction down by almost half when
replacing the factory intakes and the corresponding gains in power were
reasonable"

I was impressed that he didn't try to sell me on them fake massive power like some companies would do.
Cool, I respect that as well. I'm really starting to lean toward these as opposed to just adding post maf tubes to my setup. Before I take the plunge, I'm really hoping to see some before/after dynos though. If/when I add them, I'll bring them down to HP logic in WPB, do a before dyno there, then have them add them and then an after dyno with an updated UpRev tune to maximize power/air fuel ratio etc. I'm already tuned including the drop ins so it'll be a before/after comparo.

Methodical4u 07-26-2011 10:24 PM
Quote:
Originally Posted by FL 4Motion (Post 1232015)
Cool, I respect that as well. I'm really starting to lean toward these as opposed to just adding post maf tubes to my setup. Before I take the plunge, I'm really hoping to see some before/after dynos though. If/when I add them, I'll bring them down to HP logic in WPB, do a before dyno there, then have them add them and then an after dyno with an updated UpRev tune to maximize power/air fuel ratio etc. I'm already tuned including the drop ins so it'll be a before/after comparo.
I did ask if they could email me a copy of the dyno charts vs a baseline run.

Whatever intake I get, i'm going to run the fang plumbing.

FL 4Motion 07-26-2011 10:34 PM
Quote:
Originally Posted by Methodical4u (Post 1232018)
I did ask if they could email me a copy of the dyno charts vs a baseline run.

Whatever intake I get, i'm going to run the fang plumbing.
If you get those dyno runs from him, pls let us know what the results were. No fang plumbing option for my Z unfortunately, since it's a Nismo or I'd be right there with you.

I'm hoping these R2Cs can give most of the top end benefit of the G3's with all of the low and mid range gains of the drop ins/PMTs.

Methodical4u 07-26-2011 10:49 PM
Quote:
Originally Posted by FL 4Motion (Post 1232027)
If you get those dyno runs from him, pls let us know what the results were. No fang plumbing option for my Z unfortunately, since it's a Nismo or I'd be right there with you.

I'm hoping these R2Cs can give most of the top end benefit of the G3's with all of the low and mid range gains of the drop ins/PMTs.
Hopefully he gets back to me tomorrow... he got back to me pretty quick today, but I just checked my email... i'll try to check it tomorrow earlier.

Rooskey 07-27-2011 12:51 AM
Maybe the dyno will show differently but I really dont see a difference between the r2c and the k&n typhoon. As far as the G and Z go on the front fascia's (air delivery???) give me a break. You might see a 2hp difference but who is to say they are on the same dyno right behind each other.

Methodical4u 07-27-2011 01:19 AM
Quote:
Originally Posted by Rooskey (Post 1232145)
Maybe the dyno will show differently but I really dont see a difference between the r2c and the k&n typhoon. As far as the G and Z go on the front fascia's (air delivery???) give me a break. You might see a 2hp difference but who is to say they are on the same dyno right behind each other.
Then why do some claim they get just as much power in the G37 as those with Stillen, while the SRI's in the Z don't seem to gain much, if any power and sometimes lose power???

3sevenzero 07-27-2011 06:59 AM
Just put my R2C's on my 370z last Friday, seems there is better flow and better throttle response, my butt def feels it......:tup: sounds awesome at WOT


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