Vit's FI TT 370Z Lives! - THE MoTeC M1 370Z
 

After months of waiting and a week long install... the Fast Intentions kit is on and the car is tuned on ECUTek by your's truly.

I have to say -- the wait was worth it. IMO this is by far the best value for your money, and the best put together kit on the market for this car. I opted for the upgraded HTA turbos with the Alpha covers and Tial housings. And let me say: spool is in no way affect. This TT kit outspools and downright just slaughters the single turbo 6262 370Z we did a few weeks ago. The TT setup makes more power *everywhere* even on "lower" boost levels, and comes in sooner and much faster.

If people aren't seeing the same... I think it's simply because the car is ramping too fast on the roller dynos and the pulls start at kind of a "high" rpm (ie, if you floor it at 2500, the car will start ramping and the spool is relative to that). On a Dynapack the motor is loaded and "settled" regardless of what RPM I start at, and I do like tuning the whole curve as well.

The TT kit makes positive pressure at 1500 rpm... 1.5psi. On steady state testing it was making 10psi @ 2500 rpm, 12psi @ 3000 rpm when I let off.

For reference, the car made 278whp stock on our dyno.

So what's she make? This is our 92 octane pump gas. Blue is HP, yellow is TQ, purple is boost.

Complimentary dyno video: https://www.youtube.com/watch?v=9-5pGvd1xmU

4.5psi wastegate pressure - 436whp & 400wtq
http://blog.vittuned.com/wp-content/....5psi_nowm.png

8psi - 525whp & 475wtq
http://blog.vittuned.com/wp-content/.../8psi_nowm.png

10psi - 554whp & just a hair shy of 500wtq
http://blog.vittuned.com/wp-content/...10psi_nowm.png


The 2.75" maf housings peg the MAFs at about 9psi on my car. On 10psi it's a bit on the conservative side due to the afr starting to lean out after 6500 (quite apparent on the graph -- she wants more fuel). With a bit more fuel I feel that 10psi would of made 565-570whp. I will be switching the car to SD when I do the E85 tune sometime in the future.

And here's a comparison of my car on 8psi vs a comparable boost level. Solid is my TT car, dashed is the single turbo 6262 car. Also tuned on ECUTek.
http://blog.vittuned.com/wp-content/...ingle_6262.png

I was alittle wow'd by how badly the single turbo setup got stomped. It's almost 200wtq more @ 3000 rpm!

The guys at FI were stellar -- I look forward to doing more of these kits.

Wow. Most impressive. That boost curve is insane.

Those are some king kong turbo's you got there. This will be a very fun car.

it might "slaughter" the single turbo setup, but this kit is probably 7-8000$ more after install. Huge price difference. Still great numbers tho.

Wow, now to get into the 700whp game with E 85

Is this a built motor? How much would a stock engine handle and for how long. Very interested but reliability is my biggest concern, daily driver...
Thanks for all comments.

There are several individuals running 600whp+ with E85.

Just out of curiosity, what single turbo setup for 370 runs a 6262 turbo?

Who in the world would put a 6262 turbo on a VHR motor? That is a 4 cylinder motor at best...You can see that at 6,750rpm the small turbine wheel and turbine housing become a choking point.

Now if you compare this graph below, to a your TT graph, and add the 10% difference in dyno readings DJ vs DP (that looks like a Dynapac hub dyno, correct me if I am wrong), you are basically on par when it comes to performance:

Journal bearing 6266 T4 1.0 a/r (BB will gain about 200rpm in spool as well):

http://rttuning.com/wp-content/uploa...son-G-Dyno.jpg


So if you are putting (comparing a properly set-up ST to TT), the two cars side-by side at the track or a roll race I think the phrase "slaughter" is a bit comical...no?

I am not trying to stir things up here by any stretch...I have a great deal of respect for Tony and the boys at F.I. They provide the community with a tremendously good products, which they stand behind and support. There is absolutely nothing negative I can ever say about that company, the products they offer, or the people behind it. I have had several conversations (phone) with Tony, and he is truly a stand up guy. I have directed many customers that way for TT kits, since some customers are under the impression that I have TT kits as well (confusion between TS and TT).

Oops, double post.

I've seen a 370z with a 6262 before, can't comment on how well it drives though https://www.youtube.com/watch?v=NvrGZf_0ebk



nice numbers vitviper !

there is one guy who made 768whp on a stock block. 16 psi on E 85.

6262 turbo was used by vortex/vsr motorsports once upon a time. with the fast intentions kit though.... its crazy how close the HP to TQ is.... like that is advantageous among other TT kits....

True but that was a couple weeks ago. I'm not saying it won't hold together but the FI guys running north of 600 have been that way for thousands of mines so it's proven. One guy has broken 700, so not so proven.

That makes sense why the TQ was so low.

That is the only con about a twin -- the install is very involved.

Yes there does appear to be a restriction, it's a low mount turbo kit design like yours (although not yours, I do not think, the kit's been on the car several years on UpRev before I retuned it).

You're one of "those" guys -- you should get out more, not everyone uses a 15 year old Church dynapack calibration (which is 10-15% high actually). But sure, I'll bite (and obviously you didn't read my OP where I posted stock numbers): My Pack reads comparable to a Dynojet. Baseline 370Z, bone stock, was 276-278, with bolt ons it made 318-320. So if my Dynapack is "10% high", that means a stock 370Z makes 245-250whp? Really?

Best baseline ("highest" baseline) vs the best bolt on tuned graph: http://blog.vittuned.com/wp-content/...m-1024x608.png

I can go on... the DE 3.5L motors dyno 230-240 with mods untuned (had a couple at the 220 range)... must be 10% high too, right?

People and their dynapack bias...

You couldn't compare that graph to my results even in a perfect world. For one they look like they love using the STD correction factor to get a nice numbers inflation. I'm assuming that graph is also in what, 5th gear? That certainly helps spool. I can slow the ramp rate on my dyno down and show you the twins making 12psi at 2600-2700 rpm, think a single can keep up to two baby turbos coupled right at the head??

I had the chance to compare two cars with two setups on the same dyno, take it for what it is. But to assume you can post a random dyno graph and compare it to my plots... um, Dyno 101, it just doesn't work like that -- I have a baseline for the car(s) on my dyno and then we track the changes from there.

At best you've shown me you need more boost to make 510whp (take away that 3% STD inflation -- try using SAE).


LOL

Riiight.
That we can agree on.

You know guys all this bickering... dyno types, boost levels, turbo "response", "correction factors", power "records" :icon14:

Everybody knows all that matters is the trap speed :stirthepot:

The voice of wisdom:tup:

Yup, can't argue that.

True story.

Overlay vs stock baseline I forgot to take yesterday.

http://blog.vittuned.com/wp-content/...stock_nowm.png


And just for fun... the shop S2K (on E85, 2L w/ a 6467 T3 turbo).
http://blog.vittuned.com/wp-content/...s2000_nowm.png

I was trying to be funny... i bicker about that stuff all the time - i just conveniently hold the trap record at the moment and thats the last record I am still holding so I make the most of it :)

Everyone does... that's the internet and dynos in general. If it doesn't suit someone's perception of what should be what, it's either "high" or "low" or whatever they invent that day. So... here's the baseline, here's what we gained. And I'm going to enjoy driving a sic TT 370Z as my daily for a long while.

I thought that 6262 was a spelling mistake hahaha. no wonder.

14.7psi on E65 fuel (E85 but mixed with 1/4 tank of 92 octane since the tank wasn't empty).

http://blog.vittuned.com/wp-content/...65_14_nowm.png

I believe this is a new stock block record


Sent from my iPhone using Tapatalk

It's not, but it's up there.

The fuel system is basically maxed (single pump @ 12v, 1000cc injector) and I am running a flat boost curve instead of creeping it in. Little larger injector and running the boost in only on the top end we can make 750-760 if not a bit more, like T1 did (without knowing the stock baseline for a 370Z on their dyno... for all I know it's 300+ and not our 278).

I prefer the flat boost curve and having all my torque at any rpm, instead of just 6k+, so I wouldn't run a creeping boost curve just for the sake of a number (aside just from bragging rights, meh, lol).

Keeping the torque low was the intent for that car while building power for reliability. But yes all the torque in any rpm would be a blast to drive.

I know why it's done -- we do the same on certain cars not just for the sake of the motor, but the trans on some platforms, lol.

My car just got a big ECU upgade. Big things to come -- true VE based model, full unlocked VVEL control, CAN bus integration, true full time closed loop EVERYTHING (boost control, launch control, fuel, traction control, you name it).

Developed by your's truly, here in house.

https://www.youtube.com/watch?v=f-roscgR1wk

2nd Z to run off a standalone, this brings so much joy to my heart

Does this standalone play nice with OBD?

It's not just a stand alone. It's a stand alone with full vehicle integration. Push button start works like stock, put in the key authentication on key ON into it as well so I don't get an immobilizer light on the dash (which the ECU will still run the motor even with that light on, but who wants to look at that crap?).

A/C is run by the ECU via CAN. The fans are run by the ECU via CAN.

http://blog.vittuned.com/wp-content/...tec/nissan.png

Oh and cruise control works.

Yes yes.

Pretty sure no one on the market making ECU's targeted at motorsports cares about OBDII. It's a diagnostics/emissions related protocol and these are race/off road ECU's (I have yet to see a single "CARB" approved stand alone ECU -- even when the ECU runs all the factory emissions systems like EVAP, etc, like this M1 can be programmed to do).

So on the diagnostics front... OBDII is inferior compared to plugging my network cable from the ECU into my laptop and pulling 400+ channels of data that shows me EVERYTHING. On the emissions front -- I'm not even going to touch that with a 10ft pole, not with the EPA losing their minds trying to shutdown our race cars lol.

That... and you probably couldn't pay me enough to spend the programming time on it, lol.

Now for a teaser of some more goodies... dual lambda closed loop control -- full time either with a MoTeC LTC or whatever analog inputs you feed it from your existing in-car widebands if you like.
http://blog.vittuned.com/wp-content/.../motec/afr.png

Knock control works with both bank's knock sensors. Very advanced and fully configurable knock logic if you want to configure it. Your motors will live longer if you spend the time to dial this in. I'm beating my motor up so you don't have to beat yours up -- verified the frequencies I tuned for the knock FB are correct, as you can see. haha.
http://blog.vittuned.com/wp-content/...otec/knock.png

And of course, VVEL! That oh so scary VVEL (lol). Fully unlocked, fully mapped, including safety margins (which you can adjust if you like, but your funeral if you do lol).
http://blog.vittuned.com/wp-content/...otec/shaft.png
http://blog.vittuned.com/wp-content/...tec/shaft2.png
http://blog.vittuned.com/wp-content/...tec/shaft3.png

A/C control works.

http://blog.vittuned.com/wp-content/tt370z/motec/ac.png

Wow dude! Awesome!

The only reason I asked about OBD was to see if there's a chance to use this on a street car. I understand what OBD is. I couldn't give a rat's *** about emissions or using it for diagnostics, but it would be nice to be able to get the car inspected so I can drive it on the street.

Inspected by...? The local emissions/deq? If so that's kind of an emissions thing, regardless of how either of us feels about it. Pretty sure a turbo kit on one of these cars wouldn't pass an OBDII scan (various codes turned off to keep the ECU happy on my ECUTek map). Unless someone is stalking you, it shouldn't prevent you from running this ECU setup.

In fact, the way I have it setup... I can unplug the M1 and plug the stock VVEL & engine computers in and drive away (yes, the M1 takes the factory VVEL computer out of the picture -- we run it ourselves, no problem). Shouldn't be a problem to keep the stock computers on the shelf for a rainy day -- takes 5 minutes to revert back to them, and their glorious 12 minute reflashes, lol.

Inspected by the state. In TX (and plenty of others) TT kits pass just fine, even without cats. As long as there's no code or it's turned off, it's good. Their computer just has to be able to communicate with the ecu.

Since you can switch back to the stock ecu and have a running, passing car, then this is back on the menu as a possibility.

Easy, we can go over the details later. In your case you'd want to pull the factory primary O2's as they will get owned without an ECU running the heater control.

Finalized my fuel pressure & dual IAT sensor install on the car today. Going to rip out the air restrictor plates out of the charge pipes... err... mafs... Although if someone wants to use the IAT's in those and leave the air restrictors in the charge pipes thats fine too -- but not for me, lol.

Getting close. Should have base timing sync verified on it this Saturday. Have to make a new mark and do it from the bottom since you can't see any of the timing marks from the top of the engine bay, LOL.

https://www.youtube.com/watch?v=iiLr...ature=youtu.be

:happydance:

Curious what does the stand alone offer that ecutek doesn't? I thought ecutek had full vvel control and everything no?

Not boosted so probably has no effect for me but just curious.