Bad results on the Dyno

[Skym]

Depends on how aggressive ECU tune is, 15-30hp more on top of that last dyno graph without touching boost level.

[MKIV]

Depends on how aggressive ECU tune is, 15-30hp more on top of that last dyno graph without touching boost level.

I'm not exactly sure what an aggressive tune is, but a similar RB20 setup would be able to run my ECU as long as it has similar components, no? (fuel, air flow, etx)

[Skym]

I mean a Nistune tune which he mentioned above dynochart. Aggressive ECU tune is a lean A/F ratio (above 12.0:1), advancing ignition timing alot. Non aggressive ECU tune is 11.4:1-11.6:1, advancing ignition timing by a small amount. Non aggressive ECU tune usually makes engine last longer.

Each engine (internal wastegate spring psi is higher or lower, etc), mods (size, type of intercooler, etc) are different and the same tune may work on one engine, but doesn't on another engine (could make engine knock) without tweeks to tune.

[BongRips]

As said before, those are good numbers with your mods. Next thing I would do in your position is bigger injectors, steel internal turbo, fmic, and a new tune. I made 255whp at 5500rpm (and power was still rising super fast), but I had to pull out as I was getting too lean for my likings (12.3-12.6 afr). And that was with stock internals, stock fuel pump, stock injectors, and stock ecu but larger turbo, full 3" exhaust except for the 2.5" divorced dump pipe, stage 2 clutch, fmic, intake, and a couple other things. As for your power, stock is 212hp to the flywheel which is only around 180whp, on the stock car BRAND new two decades ago.

[MKIV]

As said before, those are good numbers with your mods. Next thing I would do in your position is bigger injectors, steel internal turbo, fmic, and a new tune. I made 255whp at 5500rpm (and power was still rising super fast), but I had to pull out as I was getting too lean for my likings (12.3-12.6 afr). And that was with stock internals, stock fuel pump, stock injectors, and stock ecu but larger turbo, full 3" exhaust except for the 2.5" divorced dump pipe, stage 2 clutch, fmic, intake, and a couple other things. As for your power, stock is 212hp to the flywheel which is only around 180whp, on the stock car BRAND new two decades ago.

You need a fuel system lol. What turbo are you using?

[BongRips]

Oh I know I need a fuel system. I am planning on 650cc DW injectors and a 300lph fuel pump by DW too. Along with the Haltech Platinum Pro I picked up off Pur. I'm gonna grab some yellow jackets too and a timing belt kit for some maintenance, wideband, boost, and oil pressure gauges, and maybe a front facing plenum as I will be switching to a map sensor and trying to clean up the engine bay. The turbo is a T3 with .68 a/r by WayStar racing. It's an ebay turbo, but before you guys start bashing, there is an authorized trader on Skyline-owners-club.com selling them and the bigger brother to it too and a bunch of people have been using them for a couple years and are making great numbers on them with no problems. So I did my research before blowing money a cheap POS ebay turbo

[MKIV]

Whatever works man, as long as you did your homework

[BongRips]

It's exhaust size uses the stock dump pipe flange and it comes with the intake pipe so its a direct bolt on which is nice. And for 700 instead of 500 for just the turbo and intake, you can get the turbo, intake, new low mount mani, and dump pipe. I just went the cheaper route though haha

[Xeno-Vibe]

194 whp is great for a stock GTS-T, the average stock GTS-T had 175 whp @ 17.5% driventrain loss.

[MKIV]

Agreed with above. Interested to see what kind of numbers it'll throw down with more air & fuel and a good tune!

[BongRips]

I usually just round it to 15% haha. Gives you pretty much the same answer (180whp)

[MKIV]

With Gtr Injectors, 3" exhaust and rb25 turbo I made 264whp @ 1-bar and 280whp @ 18psi

Definitely helps a lot!

[MKIV]

Oh that was on my 20 ^

[Supraclean]

Just to warn you Bong rips, prepare to retap, redrill all the holes in that kit. Buddy bought the same kit a couple years back from waystar and the only thing he's still using is the intercooler/ downpipe. And even then there was custom work needed to be done to make it fit.

Best of luck in your hp pursuits.

[BongRips]

I'm not using the whole kit or even close to it. Only WayStar part I got is the turbo, and even the installer was somewhat impressed by the quality of an ebay turbo