Nissan 370Z Forum - RJM GTR Intake Lower Manifold...oh yes!

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- - RJM GTR Intake Lower Manifold...oh yes! (http://www.the370z.com/intake-exhaust/113286-rjm-gtr-intake-lower-manifold-oh-yes.html)

Quote:

Originally Posted by Spooler (Post 3478484)

LOL, Yeah I need some parts myself. With my luck I would get 2 more herniated disks in my neck from the guy behind me bulldozing to the front to get his prize. Well, I got a totaled car and 2 herniated disks for my birthday, why break the trend.

At least you're getting fast intentions mufflers after Zday. :iagree:

Quote:

Originally Posted by bullitt5897 (Post 3478179)

AS elmo eluded to earlier. There are some preliminary numbers from a stock block 350z HR. This is a stock block with over 80k miles on it and over 40k of those being boosted and beat on. Needless to say the motor isnt the freshest in the bunch and there is room for more potential.

They started with And ended with @ 5 psi:
[URL=http://s234.photobucket/370z/5B6C5C8F-[IMG]http://i234.photums/ee82/bullitt5897/370z/5B6C5C8F-8A46-47B5-9B17-291E23E1BF97_zps1rrq0

400rwhp and 326ft/lbs @ 5psi of boost

Then after the install with the same dyno and same tuner were able to crank out

430rwhp and 341ft/lbs @ 5psi of boost

Analyzing the graphs we can see that the intake manifold allowed for more aggressive tuning without compromising reliability. The highest gains we can see are a whopping 42whp and 48ft/lbs at 4600rpm! the numbers just didnt stop there. We can see that the intake made more power throughout the entire power band! With the peak power climbing an addition 30whp and 15ft/lbs at the top. Proving that this part does in fact make power and will also make power on any 370z with forced induction.

The intake also allowed them to run more boost safely within the tuners limits or 9psi pushing out the following numbers:
http://i234.photobucket.ullitt5897/3...psu58ufjd5.jpg

@ 9psi they were comfortably sitting at 523rwhp and 400ft/lbs.

This is further evidence that this is a mod that will help your gains no matter what the internet naysayers think, there was R&D done on this product and the numbers will speak for themselves.

Stay tuned for more updates from those of us waiting on dyno time. :tup:

So it made a ton of power with the new RJM lower and GTR upper both at 5psi, but was the base run tuned also? Meaning, car shows up, it's tuned to 5psi as a fresh update targeting same AFR, timing, boost etc, manifolds then swapped, and tuned again for same AFR, timing, boost etc. if that's not how then it's not comparable only because the original 5psi tune could of been old and needing an update. Also swapping manifolds over and changing targets a lot doesn't give us good numbers. They're great numbers though over all! Customer I'm sure is happy to make all that!

The original 5psi tune was optimized for the stock intake manifold. The GTR conversion was done and was retuned and optimized. That is the most comparable you can get. It's a straight apples to apples comparison. This is what people can expect to make as far as gains on low psi tunes. The dyno's carry similar signature attributes to GTRs and similar attributes that I saw on my GTR conversion before rjm. These are legit numbers and real world results.

Throwing on a whole new intake system is going to to dramatically change your afr. We saw that with mine... And I wasn't going to spend another $600+ for a retune on my old tt kit. So my numbers will be probably the max you can expect out of the kit.

Umm boost went from 5 to 9psi so the 100 gain comes from boost. As for the 29hp and 15tq gain from swapping manis, what tune was on the car before? Only true test is a safely tuned car same day, then swapped, then tuned again with same timing and boost and target AFR. Any one of those things change you cant say its on the mani!

You coulda just turned the boost up for free.

^agreed those numbers posted are deceptive. Anyone here doing real dyno testing like COSMO suggested?

Harry forgets to read the analysis as usual. Ohhh and btw more dyno numbers are coming from NA and turbo applications. Needless to say the manifold makes more power 5 psi to 5 psi... As per my analysis you can see gains throughout the power band... But hey I already know Cosmo doesn't want to see this product succeed due to his prejudice and hate. As for a pull one and install another the same day from a third party well good luck with that... That's a big ask from most people especially given the time frame to do the work and be on the dyno. The best you will get is like comparisons right now and the dyno sheets posted above have been explained. It is not deceptive when you provide a same psi graph and then show an additional graph at a higher psi showing what you were able to do.

Update: Just wanted to pop in and say I haven't fell off the wagon - my company sent me out to Texas for a month to work. Didn't see that coming so quick, but hey, overtime and benefits are calling my name.

My plan is to install this setup next month with a custom return fuel setup, and also later adapt to the CJM road race fuel pump setup as well. I'm still trying to work out how to dyno this fairly - I severely doubt I can install all of this in one day, let alone between dyno sessions. Maybe I can do a two day deal, and just do some correction factors.

Awesome man! cant wait to see yours and others results in addition to mine.

What are the ports in the end of the balance tube of rjm kit

Quote:

Originally Posted by TTZ34 (Post 3492907)

What are the ports in the end of the balance tube of rjm kit

Those are for your PCV tubes

Another dead thread / unfinished RJM build with no results?

OP, give us an update.

what happened to Jake Justice and NA testing????

Quote:

Originally Posted by 370Z JT (Post 3548205)

what happened to Jake Justice and NA testing????

Jake had not finished his testing and was in the middle of other business testing when RJ MFG sent him the conversion. Being as I know what is going on I dont see an issue with him taking his time with it. But many of you dont get to see the behind the scenes and I totally get all the questions.

At this point RJ MFG has focused on this for the Forced induction market. However, I will talk to the parties involved and see if there is a way to get the NA portion back rolling again. For those who dont know... They just had another car make 70+whp with just changing the intake from stock and a slight retune for the higher airflow!!!! Thats massive gains on the same PSI level...

Anymore news on these? The AMS GTR intake looks awesome but dang it is expensive.

Op- been waiting for some NA results...surely, it's installed by now. Where are the results, man?!