Bleunetizen, I would have to say you could use a lot more advance. My cams are 262 degree jwt s7 cams. I would start in the 16.10 colum. Try this to start

3200 rpms 34 degrees
3600 rpms 32
3900, 30
4200 28
4400 24
5300 20
5500 18
5900 16
6200 14
7200 12

Give that a shot, and put the same values in in from 16.10 - 21.26 that should be wot only. My hit some around partial throttle. To get you total advance divide the number by 2. So 34 degrees in the software is 17 degrees advanced.

By the way JAY'z, my built engine has 50,000 miles on it . No one has ever tuned it except for me. And it was built by BuiltZMotors.

 

Just curious did you notice a bigger difference advancing the intake cam or the exhaust cam? On my old car (non-rev) I noticed more torque after the intake cam was advanced.

 

oh? I didnt know i had to divide it by 2 to get the real cam angle value. My current map is based on some desktop dyno software that I used for simulation, I used that as a base and went up/down a few degrees on a dyno.

So I was only advancing 1/2 of what I thought my engine was doing!? I guess I'll try doubling my current cam angles in upper range and see how it goes haha. thanks for the info, I will that out soon.

 

On the revup wich i have i retarded the exhaust cam and advanced the intake cam. On the non revup engine the exhaust cam is usually 2 degrees advanced if i recall.

 

rocks- tried out the cam settings you suggested, my A/F didnt really change much but according to cipher log that I took before and after, the engine is sucking a LOT more air in around 3400~4400rpm range. looks like that area was lacking the most timing, the difference is around 0.2v in MAF voltage, which is HUGE. It improved the MAF voltage in general, but not so much beyond 6000rpm.

this however, proves that I still gotta do a lot with intake cam timing tune!

I am going ot try advancing it more and more until it starts to lose MAF voltage, then hit a dynoshop and tune it to find the sweet spot

again, thanks for your advice!

 

rocks, lets be for real, who are you really? I know your name isnt rocks and your not some random dude (prob own a shop).. Im saying, how many on here besides actual tuners are on your level of tuning or cam timing? None, ...

 

i personally dont believe there's a magic when tuning ecu's. its just trial and error, same goes for ignition, fuel, cam angle, etc etc. its just that experienced tuners got more 'data' from their 'experience', and better sense of noticing knocks and understanding patterns quicker.

I'm not dissing tuners out there, they do a very good job but I personally tune my ecu myself - its fun, and i KNOW what my ecu is doing becuz i tuned it. What is the point of getting user tune-able solution like Osiris when you have to get someone else to do it for you? why bother with such product then.

Osiris was hard to dyno tune when it was new (i was one of the beta testers of Osiris). when i dyno tuned my car myself few years back, each 'trial' run of new settings took about 20min (run dyno, diagnose the behaviour, recreate ECU ROM file and upload), which resulted as only 3 or 4 decent runs per hour. Now its different when it does real time tune and only takes 10 seconds to upload a new map to ECU. Maybe i should hire a dyno machine again, im sure with current version of osiris I can do more better tune in one hour compared to three hours I spent on it few years ago.

Jay'Z you should try learning how these things work, its really simple to tune a car. obviously you do need a dyno to prove it in HP number on sheets but just by looking at injector duty, MAF voltage and AFR, you can tell if its making more or less power, in general. you sound like you are scared of blowing your motor - but if you know how to monitor your engine, chances are pretty slim. in my car I'm running stock engine with cams and valve springs, revving to 7200rpm and thats more than 2 years ago, I used UTEC back then which had no cam timing adjustment. and yes I do track a LOT, my water temp and oil temp shoot up over 110degC/135degC one day, and my motor still lived. obviously I upgraded my radiator and oilcooler etc to keep it in one piece.

long story short, you should try it. its no magic.

 

Bleunetizen, did it feel like the car made any more power?


Jay'z nope my name isn't rocks. I do own a shop, and I have my own cars in it. I do not tune cars for a living. Im just a pretty smart guy I guess. To tune a car is not rocket science. Hell I wish I could take advantage of people like the shops do and rape them for all thier money id be rich ahaha. Read some tech books. I am just some random guy who likes to work on and tune cars. Honestly you should check out some other forums like www.turbomustangs.com they have lots of tuning information and http://www.turboford.net/index.shtml um what else. Oh yea check out the subaru forum, they even have subforums of each tuning software & hardware and you know what they SHARE information. What is lacking in the 350z community is the sharing of information. One day that wall will come down and you will see a lot of these 350Z shops go down with it. I give it about 3-4 more years.

I started with a Merkur XR4Ti years ago, 2.3l turbo ford. Had it at 18 psi of boost on the stock motor. It lived for over a year before it popped. It sure was fun out running ricers and v8s in that beater. Where I live if you can't work on your own hot rod, you don't have one. No one in this area has a tuning shop. I refuse to trailer my car 100s of miles just to let some bozo tune it when I am more than capable of doing it on my own.

 

rocks - its rather hard to notice difference on road because of curves, hills and etc, and i was more focused on high rpm range than mid, even though it was mid range that gained the most when i did it.



above is a quick sheet I created using cipher log.

Thick black line - MAF voltage after cam timing adjustment
Thin grey lines - intake cam advance after cam timing adjustment
Thick blue/red line - MAF voltage before cam timing adjustment
Thin light blue lines - intake cam advance before cam tining adjustment

There you can see the MAF voltage went up a lot between 3400~4400rpm range. for obvious reasons, MAF voltage is more than 90% accurate compared to dyno chart, so I must have gained a lot of power in that area. I was more focused in higher range around 6000rpm and the car felt somewhat smoother but nothing major.

the engine seems to like more advance around 4000rpm area, im gonna try bumping it to 38deg until 5200rpm and see what kind of difference it makes. like i mentioned earlier, my previous cam timing was based on some simulation software and I did not know what I see in the software was x2 the actual value, so I am guessing that doubling my previous cam timing probably will put me in the area it just needs minor adjustments. more trials to do

 

Both of you have valid points.. I wish I could, but I honestly dont have the time to learn.. Because of my high Rank, Role, and the fact that I am deploying constantly gives me NO time for something like that... I will look into it once I retire though.. After retirement I will go to school for tuning and building engines. Possibly body work too..

I have Uprev flash/Osiris software/Haltech..

 

I have the COBB stage 2 tune tweaked by me but I havent touched the cam timing. Seems very advanced in the midrange. Does anyone with a HR have their uprev logs? What method are you using to adjust your cams? Watching MAF voltage while on the dyno?



Edit* Im at work and will post a better pic when I get home.

 

Wow this is starting be a great thread. I am glad to see people starting to share info on Osiris. I am new to the world of tuning and have owned Osiris tuner for over a year now. I have been reading lots of information on tuning, so I can get a better grasp of it. Osiris has come along way since I have had it in this year.
It would be nice if we had a place where we could share information regarding Osiris. I know the guys a UpRev had talked about a starting there own Osiris Forum.
I think we are way to sharing information on Osiris tuning.

 

good info here... I need to get into tuning, it seems crazy to pay someone to do something I would enjoy.

Also interested in seeing what cam tuning can do to squeeze more power out of NA VQs

 

My last Osiris tune was more than just a tune.. The tuner was doing mathematical hexadecimal equations n ****...... This is why I think its more complicated than you all think, nor do you have a dyno for tuning which cost about 100 per hr.. IMHO.. I could post my Osiris tune here all day, but I have C2 cams, and not many on here do..

 

the problem is, there historically very few hands on people in the modern Z community as a whole

 

^wrong.

 

When it comes to tuning, I don't think I'm wrong about that.

Sure, some guys do bolt on stuff themselves, but I am referring to tuning. The vast majority simply drop the car off somewhere and pay when it's done. Nothing wrong with that by the way, but that is the way it's been. I could tune my own car...I've had standalones on my own personal cars since the mid 90's, and I've always tuned them myself. In doing so, I realized I derive zero enjoyment from it, and I'm not even particularly interested in that aspect of my own build. I certainly understand the appeal for people to do it themselves, and give people alot of credit for it. I think learning that sort of stuff is important when you own a car such as many do here. For me, I don't have the time to tune it myself, and it's just not something I really like doing, so, I leave it to others I trust.

 

^ok, imo you said hands on, I have done plenty of hands on installing SCs and TTs. Tuning is a different story.. Thats true, I dont wanna blow my **** up just tinkering or learning.. Im sure you dont have 25-30k to blow do you?? I dont either, thats why I prefer and other members have for years to get it professionally tuned by experienced z tuners..

 

I'm not worried about blowing my car up, I just really don't like the tuning side of things. I find it tedious.

 

You tuned your car doesn't mean you are damm smart guy.
Sure you can just play around and see what works without understanding what's going on. 350z motor isn't bullet proof, i would more carefully listen knock and watch a/f when messing with cam timing, not just care about " power ".
Also, " share " information. IMO, forced induction cars forum has more tunning information than N/A vehicle forum. Since they likes to mess around with it, and many guys has similar mods. Which not like 350z/G35 guys here. But, i can say that 350z/G35 has many great guys you can get a help, when it comes down to tunning.
Btw, there are lot of guys tunning their own cars out there, but also many guys end up at the shop. Still there are many good/smart tuners at the shops and will do in future. Sorry, if you think their shops will close down in future, because you "think" you can tune?. That's wrong. They were here so 350z has been prove untill now and will do in future with 370z. I can even see how stupid you are just by saying that...Hope your shop doesn't close down in future...Seriously hope not.
Just my two cents, no bashing. Enjoy sharing an information.