Well after a long summer with my car but I finally got it on the rollers! There's still room to grow in this tune. I went just from 11.6-12.0 afr and picked up 18whp. But kinda ran out of time to play around any further. Made 379whp/307wtq. Was hoping for a little more in the end but all and all not too disappointed considering I'm on pump gas. The long and short of my set up is:

- Gen 3 motor with DI pistons
- ZZP turbo kit with an S252ET turbo
- Ported head
- ZZP S2 cams
- ZZP 3" Catless downpipe
- ZZP 3" Exhaust
- 22 psi
- 94 pump gas. No meth

 

There's the thread! Not bad for 22-23 lbs on pump. Can't wait to bring some E85 up next week and play around

It's crazy that it picked up that power just from going to that little bit richer AFR from being in the shop to the AFR we run it at on the street. That's a huge gain for a small change. Makes you wonder if the DI piston design has anything to do with it, or if the gains from leaning out an actual DI car are strictly from the port of the direct injection.

Overall, I think you hit your original goal from last year of wanting to make the same power or slightly more with pump gas on less boost than your TVS race gas/meth setup. Next time it will be time to turn up the boost a bit!

Also, the car was completely remote tuned.

 

Very nice numbers man!!

 

i think thats a very low reading dyno. good numbers none the less but ive seen stock motor gt30r set ups on 93 @ 23psi put down 400whp flat. either way different dynos etc but seems a but low still

 

Also, should be noted. The car has a ramp to 19* advance and boost tapers to 20-21 lbs up top. A healthy amount of timing, I think its time for more turbo

Edit: Looked through it and peak boost was 22.2 PSI.

 

E85 !!!!!!! i dont wana hear im either lol Buy a oil tank and fill it with E85


Dat Curve thoo

 

Thats a pretty good looking graph congrats

How much more is left in the 252 what kind of psi can you push it to

 

It very well could be. I had a run in with a 2011 GT 500 with full bolt ons, pulled down and tuned last night. By the top of 3rd he had me by 3 lengths which I throught wasn't too shabby lol.

 

We pushed it to 26 lbs on 91 but were having diminishing returns with the limited advance we could run causing scary high EGT's. Haven't tried more on 94 yet, but it should have no problem being efficient at 25-26 lbs, but will still taper to 20 up top. I'm bringing him the gift of E85 next weekend to mix in so we will have some fun with some more boost then He's only at 78% duty cycle, so we have some room to throw some mixed E and boost at it for shenanigans.

 

Ummm Id say 26-27psi would be the most I would run out of it. Next year is meth injection so thatll help a lot. Up in the air if I'm gonna roll a bigger turbo or not.

 

The **** is this ****?^

 

just gotta find dat turbo without much out of pocket. You know the song and dance america lol.

 

Surprised you said you couldn't get more out of 26psi. I'd figure with less timing and more boost there would be more power. Surprised you didn't make an easy 400, and that it died up top that fast. I know it's only a little 52mm but still. Good results though. I should visit my best buddy in Winnipeg and meet up with you two.

 

I believe it would make more power on 26 lbs now on 94 octane E10, but on 91 we were getting peak timing around 10* and EGT's at 1750* :/ He ran out of time to turn it up and play some more, but we will play with that next weekend when I go up there!

 

Soon it'll make a lot of power in that - 40 cold lmao

 

Ya I would have liked to of seen 400 also. If I had more time to play around it would have happened but I had to head to work When you look at the logs on top my motor is actually out flowing the turbo. Boost drops a bit up top.

 

I'm going to bring up a larger WG spring just to make sure that isn't causing the taper.

 

Wasn't part of going turbo that you didn't need to run Meth with the previous failures...

 

Partially yes haha. But AEM has come out with a fail safe kit for meth which will keep my motor from going boom if it quits this time.

 

I'm confused. Is it an lsj, or an lnf? Gen 3 with direct injection. Is it true direct injection, or is it just di pistons on an lsj head? Was just wondering, because if it's true di, wouldn't you want to lean it out even more

 

Lsj. DI pistons

 

Yep, just DI pistons since its a Gen 3. Still uses 80# injectors in the head.

 

I heard my name

Let me know when it's time to do this!

 

Ah I see reading > me. Lol