There's no real secert to this. Forget all the VVEL talk. It's was just talk. The headers themselves make most of the raw HP. But like any other tune there is a little more that can be brought out.

I must say I do agree with the part that it sucks Z1 is so far away from us here in Miami :(

for those complaining that they arent sharing...

once other tuners start getting into vvel tuning im sure more people will share.

But as of now, not many are doing it. I wouldnt go to a shop in Miami and say, hey the guys at z1 are messing with this and hey said they did this kinda stuff. can you do it too? I'd rather wait till they start getting experience with it on their own or not do VVEL tuning there. but maybe thats just me

only an hand full of people is actualy helping others with their tune,

it will never be even close to what the EVO/STI/WRX forum are.
the 350z/370z is a very closed community and no one like to share their tune ...

Basically if you dont pay, you arent getting **** and dont expect others owner to help you much with that kind of stuff ....

sad but true

I guess you just see it that way.

But i dont. Ive gotten tons of help and seen lots of people and companies help others.

maybe in PM but I have yet to see more that 2 people showing their actual map and requesting help. like it is on other forum ...

so im quoting you on this
I guess you just see it that way.

threw down 332hp/270torque on a mustang dyno yesterday. interested what it would do on z1's dyno.....
Momentum, Berk,hks, motordyne, stillen - YouTube

That is awesome! Looks like these momentum headers are the real deal!

shame they not making them anymore....

the collector is amazing, some of the best looking headers i have ever seen. shame they went out of business

Wasnt Z1performance going to have a replica version of these headers??

I believe they are still in development. Stuff takes time unfortunately.

What about the Intakes John?? :tup:

Please let me know if you need a test mule!!! I'll volunteer :tup:

I haven't heard about those in over a year.

Nice job man!

I was hoping maybe since then.. there might be an update/forward progress. :(

thank u sir! how u been? we need to cruise over to s.a. to come and hang with u guys. a few of us were thinking about coming over to do the twisted sisters.

Were talking about Dustin now. :tup:

:rolleyes: Ohhhhh Duuuuuustiiiinnnnnn :stirthepot:

I made this without headers. That was done with everything in my signature except I had Invidia test pipes at that time now I have 200cel Invidia HFC's they were the least restrictive I could find. I don't think I lost to much from the swap. I needed to have cats for state inspection. No emissions testing where I am but cats have to be present. I have been pretty happy with my setup.

Attachment 60547

Good numbers but they look a little high for those mods....possibly a high reading dyno

:iagree:

I thought the same thing and even questioned the tuner and he said its usually the opposite for their Dyno bc its a Dyno Dynamics steady state Dyno just like a Mustang and typically read low. And he said they use the same correction for all the tunes they do. So I trusted him. They were getting my money either way.

Nice! Have you thought about gutting a set of factory cats? Thats what I did on my 350z.

I have my factory cats. At the time I didn't have the means to want to swap them in and out each year bc I just live in an apartment and its a pain to do it yourself especially if the header bolts get seized up. So I figured just going to HFCs would be a good compromise. However now I work at a BMW dealership as a service advisor and have 30 bays and techs at my disposal and I'm thinking of getting test pipes again.

gutted cats didn't rasp. But, you definitely need breathing protection while gutting them. Lots of nasty stuff inside.

Huh...wait..what did I miss. LOL

I will talk to Spencer tomorrow to get an update on this project and report back. The project is not DOA...believe me.

Yeah that sh!t is nasty. I did that on my old Talon back in the day. Took a while with a hammer and a giant flat head screw driver. And that was just one straight cat never mind two curved cats. I was at least able to stand it straight up and down and hollow it out.

335whp with stock exhaust manifolds and with HFC's... hmmm, thats a very generous dyno.

You didn't read my post correctly. I now have HFC's but those numbers are with Test pipes. I expect to be making less now with HFC's but that doesn't change what I made. And the Dyno I was on wasn't some cheap a$$ Dyno you may see towed into car shows and probably never maintained or calibrated either. Here's a link to the shop I go to. And do some research on Dyno Dynamics Steady State dynos too and see if you read anything about them being generous.

But either way a Dyno is tool used for tuning and I did my research and supposedly steady state dynos are some of the best bc of all the options it gives the tuner to calculate load with and really give the tuner the best capability to give you a custom tune for not only peak power but for drivability throughout your rpm range. And I feel that's what I got, increased power and a very smooth power curve and the car drives better from it. The number that printed out to me was just a bonus as long as it was higher then what it was originally

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Originally Posted by redline727
I made this without headers. That was done with everything in my signature except I had Invidia test pipes at that time now I have 200cel Invidia HFC's they were the least restrictive I could find. I don't think I lost to much from the swap. I needed to have cats for state inspection. No emissions testing where I am but cats have to be present. I have been pretty happy with my setup.

Lol, so you don't think I know anything about a dyno or tuning just because I think your numbers are alittle high? Trust me, I know that Dyno Dynamics tend to read low, thats why I'm even more skeptical about your 335WHP...You don't think its odd that you don't even have LTH's or shortys with heat soaked style intakes, yet you have numbers higher than 99% of the members on here? Any dyno can read high. You do know they have to be properly calibrated right? :p

No need to be defensive. Hey, its a forum, discussions and debates is why we're here right? As long as your Z was tuned properly and you can feel the gains is all that matters :tiphat:

Dynojets are very consistent from one to another. I prefer it because it never lies. I don't think absolute numbers are the best way to show improvement. Showing the delta on the same dyno is much better imo. Regardless of the dyno 335whp is still impressive.

I made more power than you...nanana-booboo! Different dynos, different enviroments, different dyno operators, calibration.... the list goes on and on. I love having my car tuned and dynoed on a low reading mustang dyno. Its even better when people come to the shop claiming big power and leave butt hurt. Makes for a good lol.

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I know they need to be calibrated and yes I even questioned my own numbers that day. I posted before that I even said something to the tuner and he was surprised bc he has done many uprev tunes in Z's. He said they keep up with the maintenance on the Dyno and use the same correction all the time. So I have to believe him I suppose. I also have to believe that being in an indoor Dyno room with huge exhaust fans and front fans running its also optimal conditions as opposed to being in a hot humid open shop bay. It was hot a$$ day in June in VA and it was cold in the Dyno room. Also maybe my car just liked those intakes and exhaust combo with the test pipes. I mean I guess I can do some runs on a diff Dyno for comparison but I don't have TP's anymore and why spend the money if I'm happy with my results. Not being defensive all in good conversation I figured I would participate in the thread given its title and my results given i came close w/o headers or vvel tuning :tiphat:

best thing to always do is go to a dyno day with many other 370z's.

If the dyno reads high or low at least you can compare to where other z's are sitting.

I've been a bit out of the loop for the past few weeks -- what's the latest on availablity of VVEL tuning?

Still in Beta phase?

yup, I havent seen anything available on the public software with my Pro Cable.