another greddy TT video
 

saw the other one posted here and it reminded me i should pull one off my phone that was there since last fall i believe.

at the 7.5psi in the video, it did 524rwhp (i think it was)... but that was on a hot day. i can see on my cluster there that it was like 40 degrees out on this pull, so its likely the car was making quite a bit more power... especially since i have found that my car is especially temperature picky with my aggressive ignition timing.

sometimes i run it 8.5-10psi boost, but if its not nice and cool out, it must be knock feedback that causes it to pull out so much timing that it feels like its making 450rwhp (unfortunately i have no way of logging knock, but i can watch it pull the timing out and i have reason to believe it is from knock)... unless its nice and cool out, then it keeps all my timing and I suspect it to be around 600rwhp or possibly a few more. i have intentions to get it on a dyno on a cool night here hopefully soon to verify my suspicions and work on my timing map (this is the only car I ever tuned with Osiris). Considering swapping out for the DSS pro axles for this coming fall so that once it starts cooling off during the day, i would like to go claim that first stock engine 10 second pass that nobody has gone after yet.



I recommend E85 if it is available to you... it compliments the stock engine internals well by being extremely knock resistant. The VHR is still just a VQ, the internals appear pretty fragile. It is my belief that we see less VHR failure than DE failure mostly due to the more advanced engine control. Trust me, my stock engine would have blown long ago with my crappy timing map if it wasn't so "aware". If I still did tuning for customers, i would refine the map a lot more... but I am pretty careless when it comes to my own personal stuff!

The Uprev software has treated me and my engine well. That said, I have been curious about the new EcuTek software, only because my impressions are telling me that it appears they have changed the tuning format to be more traditional, where the Uprev software is keeping the proprietary Nissan format while "unlocking" the required maps.

I feel there are things to appreciate about both methods. I would LOVE LOVE LOVE to have standard format ignition timing tables for my engine. But I do wonder if the advanced feedback compensations of the OEM system will be retained with this software? Will the knock feedback still work so incredibly well? Will the VVEL system integration still be entirely seamless for the driver?

525whp on a stock block? very nice! video is awesome as well :tup: keep it up.

Good video, on the tuning choices I am still waiting.
I am sure ECUteck will be great for our platform but still to soon to judge. Also I like Uprev's approach by keeping the ECU spec the same and just modifying what is needed.

Also on the E85 stuff, good options in Houston to fill up with E85 but do you feel you have lost anything by making the switch? I know MPG is not a huge case for many but can be hurtful if you are DD (such as I am).

That thing pulls hard...

nice keep it up , you should get toyo r888 and a quafe differential , the car totally changed :P

Awesome video and car. I always loved Greddy but the prices were just to high for me.

Thanks. With the miles and abuse I have on this setup, I say complete confidence that 525rwhp is mild on the stock engine so long as the tuning is stable. I depend on e85 personally to help keep the engine intact with my lack of tuning experience with the Osiris.

When I run the boost in the 9-10psi and don't get any timing getting pulled, based on how much harder it pulls and based on my friends cars that it stays next to, I am pretty sure it's more like 600rwhp but it's only speculation until I get it on the dyno again.

My miles per tank are still very acceptable considering its a 19 gallon tank. Last summer I took the car to a friends lake house. I am in Chicago and his place was directly west almost to the border of the state and I made it round trip. While out there, I even took his little brother for a 15 min abuse ride and did a bunch of donuts and power sliding around.

The stock fuel gauge calibration sucks bad though. When it says half tank left, that means 1/3 at best. The second half of the tank according to the gauge, burns so damn fast that I better be headed to an e85 station pretty quick.

nice to know. my goal was 550rwhp on a stage 2 TT set-up but with needing a $7k upgraded 7AT to actually enjoy the full power i decided to not go TT route.

In that video I had toyo r888 305/30/19 on there. Now I have the toyo TQ drag radials and they are amazing, but handle like a magic carpet ride above 80.

I'm not sure i will change out the diff. The stocker seems to never give me 1 wheel wonder unless I am trying to turn and full throttle or do donuts. In total straight line, I always get even patches from both sides.

Nice pull!

Yes the exchange rates aren't helping the price of their kit much... And the larger the corporation, the more they have to charge for their systems to pay their bills. For the end user, this adds up the a higher entry cost compared to the prices of competitive products from smaller US based manufacturers. It could be worse though! You see what the GTR guys are having to pay for bread and butter turbo kits?!?? The setup in my car is more comprehensive than a popular GTR package that is $25 grand! For that price I could have also swapped the pistons and rods and put a twin pump in there and be rolling around 800rwhp.

:iagree:


There's hardly any E85 places in GA. Especially where I live.

Put some rods and pistons in there and roll around with 800whp.:tup:


Was a pleasure talking to you today thanks for the information today.

Wow it pulls pretty darn hard in 3rd compared to mine, but I've not spent much time after getting the test pipes.

BTW, why does it hang for a little bit at 6.5k in 3rd? I think I've felt something like this before.

On it ;)

That's just when the tires stopped slipping.

Very nice. I'm waiting on my fast intentions kit and then ill be e85 boosted aswell. Have you dyno'd the car to get those numbers?

Two years ago it dynoed 524 at 7.5psi.... I haven't run it on a dyno again to see what else it does.

That's pretty awesome for 7.5psi.

Were you able to out run the derecho? Seems like you were able to quickly to match its windspeed in 3rd and 4th :)

That car pulls impressively hard.

Seriously have watched that video like 10 times. Too good. Cant wait for my E85 goodness. If anyone has questions about E85 prep talk Phunk. Dude is more than helpful :tiphat:

Pics from the install a couple years ago
Nissan 370Z Forum - phunk's Album: phunk's TT 370z

Attached the low boost dyno from a couple years ago to prove boost pressure.... Graph is a little choppy because it wanted more timing but I felt like it already had a lot. It has more now.

It's held up to this or more for 2 years now, and I floor it through a few gears like every 5-10 minutes I'm driving. Pretty impressive engine... Don't let anyone tell you that 500+ rwhp isn't safe for regular use, if it breaks than something was wrong.

Never really played with the boost controller settings to get that last 1 psi to come in a little sooner... as you can see from the wheel slip in 3rd on concrete with r888s, not really missing out on much.

BTW this is without any VVEL adjustment. I don't have the software to do that.

That's plenty of fun power for a daily with a stock block especially with that kind of response. How's half throttle response in 3rd or 4th? How's boost pressure building up around 2k?

i wonder how much WTQ the stock 7AT can handle with a cooling upgrade.....

i like those numbers though. 525whp and 400wtq

From the drivers perspective the boost transition feels immediate in the lower gears. Just driving around town spirited, it feels a amazing. Even before the engine becomes an airflow restriction causing pressure to go positive in the manifold, the airflow is so much higher. The engine is so damn efficient.. When you are say 2nd gear 1/3 throttle, riding out 1-2psi boost, the air filters sound like vacuums and the power is already causing some sliding around. Honestly the engine feels so potent at part throttle, that you are almost expecting even more than it has available at full throttle. That's where I can tell this engine wants some more boost still :)

The one angle of these cars that I have no experience what so ever is in the AT trans. I do know that if I had one, I would push if just as hard as the 6mt and cross my fingers. The 7AT would probably outrun my car in the lower gears

haha yea i agree but i really havent seen too much on here of people pushing the stock AT with boost and only 1 person i know of has the GTM stg4 AT trans and still doesnt have his SC kit on yet to know if it'll hold.

honestly if i knew the 7AT could hold the power i want i would consider it but i dont think it can soooo i see no boosted Z but a GTR in my future lol

GT-R is a wise choice that nobody regrets, and the aftermarket support makes the Z world look like special ed.

dont you mean special-Zed? :tiphat:

I'm actually cutrently awaiting for the MHI TT for my AT Z.....So far I already installed my 34 row oil cooler and with a VB upgrade, 25 row tranny cooler and a good tune you should be fine at 10psi max (that's what Mike from Gtm told me) of course in the right mind I'm gonna be running low boost due to the fact this is my DD :)....ill keep updated, just as soon as I get it.

thats cool. even as my DD i would either have a 7.5psi map and a 11-12psi map lol

once you turn the boost up... you probably wont ever turn it back down! I only turn mine back down because my tune is incomplete at 9-10psi and sometimes its actually slower up there cause too much knock lol. it only likes cool nights at "high" boost for now.

can't wait until next month.

Booooooost

We've been moderated!

what

they pulled the video out of the first first post since its him going over the speed limit and that counts as "street racing" pretty lame on their part since he was just showing a pull through a couple gears. if there was a car beside him maybe.

Phunk should have said you were at a track or closed road and you would have been fine lol

there wasnt even another car anywhere in the entire video, so im surprised he pulled it. probably cause of that one sentence where i mentioned a zr1 and a cayman lol.

my sincere apologies to the families of all the members who have been killed in street racing accidents caused by the brief open window of my original post being available on this forum. :rolleyes: