Hmm okay then, would you say that it’s fair to compare it to the VR38DETT in this regard? A powerful and fairly robust engine that has way more power stock then VR30DDTT which people call it the baby GTR.youre going to have to realize that way back in 1994, that engine didnt even make 200hp. even in top form, the VQ30 never made much than about 225hp/200tq. they were not exactly engines that were stressed much. also, as was pointed out previously, the engine was designed at a time right before japan's economy tanked. at least, it was in the design phase. engineering a low hp, low stress V6 isnt that difficult. the engines lasted a long time because they werent making any power worth mentioning.
even if you wanted to go a step further and compare the VQ30DETT against the VR30, the low boost VR30 DEMOLISHES the VQ30 in stock form. the VQ30DETT is lucky to make 250WHP/WTQ on a dyno. the VR30 is significantly more complex and more powerful in comparison. more complex things tend to break more, thats just how it is.
the serpentine belt tsb has been blown WAY out of proportion. weak turbos are a fault of garrett more than infiniti. garret quality dropped off sometime in 2010 when production/QA left our soil. the mgt1446 has a long history of failure, as the 1.8t VW guys. regarding porous blocks, talk to GM. theyll pretend to tell you the northstar engine of old and the past/recent crop of LS have no problems at all, big lie lol. honda V6s in the early 2000s had porous blocks, it was EXTREMELY common. a tsb was released with instructions to use jb weld (yes, really). all mfgs have issues from time to time. its unfortunate but thats just how it goes.
To me I wouldnt say it’s a fair comparison but since you mentioned the VQ30DETT I would assume its only fair to mention this robust VR38DETT.