[FischAutoTechGarten]

So GreySinclaire is out and rone465 is on!

Looking forward to seeing what you do with it.

 

[muchogranderojo]

It's already maxed out at 170hp which moves it around fine if your not in a hurry, 400hp is high school fantasy dreaming.

im pushing 220 out of my QR so you are wrong 170 is not maxed out

400 Hp though NOT GOING TO HAPPEN

 

[rone465]

I'm new to this platform and have only owned my 2006 XE King Cab for a little over a month, so forgive me if there is some hidden knowledge with these engines that I'm unaware of. But it seems to me that nobody has really tuned these engines up much aside from old YouTube videos of Altimas and Sentras racing these things at barely over 200hp, besides that ridiculous fully built track monster running 9's on a 1/4 mile.

1. Does anyone really know the limits of a fully stock QR25?
2. Any weak points within tuning these engines? Boosted or N/A
3. Any tuning platforms out there besides UpRev without going standalone?

I'm asking because I want to see what I can do for this truck as a prerunner build. There's heaps of aftermarket stuff out there for the frontier model but it's hard to believe that it's all only for the v6 platform. I'm sure I'll have to build an engine at some point but I don't want to v6 or v8 swap my frontier. I want to keep things light for the build but also be pushing around 400hp comfortably and reliably. Any information would be highly appreciated.

 

[rone465]

Call up or email 2J racing. I was told by them a healthy and very well maintained 2.5 (later gen) like mine could handle 320hp IF HE TUNED IT. Early Qr25des may not be able to take this much due to some weak points that were changed in later models. No matter what 400 hp is possible BUT major internal upgrades will be required. Like I said get ahold of 2J racing they are very knowledgeable about modifying this engines.