Tuners around GTA
 

hey everyone

looking for good dyno tuners who have experience with VQ 3.7 engine, not someone who have worked with other Nissan/Infiniti engines.

I got a tune through a tuner and results weren't that great though he tuned previous VQs.

Who was your tuner?
-Are you tuned with Uprev's, Osiris?
-What were the results?
-What were you expecting?

Post up the dyno and other relevant info.. perhaps others on here can help to diagnose the problem.

I have had both my z33's tuned at APH and I know for certain they have tuned g37's. They would be my first choice.

Also, you will not find any tuners who have only worked specifically on the 3.7 as it is still in its infancy, and I don't think it would be wise to rely on tuners who have only had 2 years experience.(But that's just me)

PM me if you want name of the tuner.

VQ 3.7 engine is fairly new but tuners shouldn't claim or exagerrate on stuff they cannot do and waste customers time n money, not all nissan engines are same.

I'll try APH, see how it goes.
Cobb tuned.

If you want help from the community, you should offer information freely.. (just sayin..;) )
-I see that this was tuned on a U2NDYNO with Cobb AP.. So I can pretty much guess who that is within the GTA. (or should I say outside the GTA..)

Your delta's seem to show some good increases in power between 5250 and 5750, it looks to be about 18-20 whp & ft/lbs were gained.. with smaller (but noticeable gains across the board..)
-what NA mods do you have installed?
-what were you thinking it would put down?

Edward and the guys @ APH are TOP NOTCH. I am certain they can fix the issues, if they are indeed related to your current tune.

GL!

I should add that Ed@APH has been a z owner since '04 and has gone through the gauntlet with it. He is currently running a built block TT setup (Installed and tuned @APH) which is putting down some impressive #'s for a reliable DD!
(yes he DD's 550+whp)

Note, that I am in no way affiliated with APH and have nothing to gain from recommending their services to others.... But when it comes down to meticulous workmanship and pride in all facets of their profession, they are tops in my book. Ask anyone who has had work completed at APH and you will hear the same, I am sure.

-Granted that after years of being like-minded enthusiasts and sharing a common love for the Z, we have developed a solid friendship and I would not hesitate to send others in their direction.

GL

18-20 whps and lb/ft????????????????????????
did I post the wrong graph. From what I see, the interval is set at 20 on both Y-axis. The gains are less than half of that, probably around 5 - 8 hp or lb/fts.

No its not APH I dealt with and you're pretty much on the dot about the location of the tuner, I rather not speak publicly but if you're interested and want to avoid my experience do ask me privately.
I'll check out APH and see what they do. VQ 3.7 is totally different machine than the previous VQ, so a tuner with tuning these engines is a must to get respectable gains across the powerband. Don't want a tuner acting suprised during tuning sessions.

IIRC Sasha @ SG Motorsports told me they tuned a few VQ37HR

OOps! My bad.. you are right, 5-8.. Not sure what i was looking at..:tup:
I do feel your frustrations, esp since the z34 should see more gains when tuned.
IIRC, APH should have experience with tuning the 3.7, and I would imagine with VVEL, it would take some experience to get a proper tune.

My advice would be to call them, discuss all of your concerns with them and see what they have to say. If anything, they will be straight up with you and won't sling any BS your way.

-I would def suggest you post up the final results. Good or Bad, you will be helping out the community greatly and I am sure many will be thankful.

GL MAN!

Negative Ghost Rider! -Don't think he wants to go there..

Sasha at SG tuned my VQ37VHR a few time
I was happy with the result but the gain are hard to get with these engines
no matter who tune it, the VVEL is a bitch.

^^this only helps my thinking in keep my 40th stock and just keep saving for R35 like I have been wanting to!

sucks that on such a nice engine setup we are getting very little gains even with all the bolt-ons!

^You will still see gains with simple bolt-on's... I/H/E, throw some TP's/HFC's, maybe pullies with a tune and you would still have more power.

There are decent gains to be made with the NA setup with some breather mods.
Even with the maps provided by Cobb, there is a difference in gains made but they'll most likely require a tune by an experienced tuner and that should result in little bit more.

Any power made won't be same as FI cars but even with NA setup this power is good enough for me.
APH has done around 30 tunes for this car so I'll pull the plug for the team soon, whereas the other tuner had 4.
Tuner makes a difference. There was one guy who had similar setup as mine, got 5 hp gains with Uprev, with further tuning he was able to get more.

Reality:

I talked to Brian at APH and will be seeing him this Saturday. After talking to him, he gives me the impression that gains are not guaranteed with tune, should I take the chance with him except that he has experience with tuning 30 vq 3.7 cars with Uprev only as compared to 4 with the other party ?
As per Brian, tuning is same as tuning a former VQ.

^I personally would go for another session to try and maximize the setups performance gains. I would not be satisfied knowing that I left gains on the table, when I could have simply unlocked them with a better tune/tuner..

Mind you, if cost is an issue or if you want to just let the z sleep and re-evaluate next season, you should definitely consider those as options. (maybe you will want FI, next year?)

Knowing the team@APH well, I can tell you that Brian is a very competent tuner. Also his explanation to you that gains are not a guarantee with another tune, just goes to show his experience with the Vq motor.

Q,
-Were you going to switch to Uprev's Osiris? or stay with the COBB AP?

GL!