Neo straight 6

[iliketocrash]

Recently i noticed another "kind" of rb25det it's called the NEO straight 6. I've read up a lot on it and i know it exists but there really isn't all that much in depth info on it. Would it be worth getting over the regular rb25det?

[themadscientist]

no

[Phat_Optimo]

Doesn't that motor (r34) have a VVT system. I'd like to read up on it if anyone has any info.

[themadscientist]

It has variable timing.

[nlzmo400r]

well whats the difference? is the *NEO* motor the rb26dett or what??

[Phat_Optimo]

well whats the difference? is the *NEO* motor the rb26dett or what??

I don't know the specs on the r34 motor, but it has a variable valve timing system. VVT is the ability to run different cam profiles for different RPM ranges. This makes the engine efficent in the low end and top end. I am wanting to know if this motor can be swaped into a S13/14 and are their OEM trannys AWD. I bet they are high $ considering that they are fairly new compared to the RB26. I am also willing to bet the redline is much higher than a RB26. I believe Venus has one for sale. :starwars:

[NeedCAforS13]

I bet they are high $ considering that they are fairly new compared to the RB26. I am also willing to bet the redline is much higher than a RB26.

this statement makes absolutly no sense...the r34 used an rb26 all the way to its completion...so why would a neo rb25 be newer, more expensive, or higher revving? the rb26 died with the rb25 :rolleyes

[nlzmo400r]

this statement makes absolutly no sense...the r34 used an rb26 all the way to its completion...so why would a neo rb25 be newer, more expensive, or higher revving? the rb26 died with the rb25 :rolleyes

thtas exactly what im thinking, this may be a new motor indeed, but can't possibly be the rb25 or 26, perhaps a newer rb27 (or motor to take the place of), im not too sure i understand, and yes i know whta VVT is and such, but i doubt for one that it would rev higher, what does that have to do with anything?

[NeedCAforS13]

hehe silly rob the rb series is dead...and the 25 and 26 refer to displacement rather than age...so i doubt the 27 would be the next series of engine! (but i'm sure you knew this )

Sean

[nlzmo400r]

i know, i was just getting at a possible succesor to the rb26, however, the RB27 did go through prototyping of some sort, o, nevermind, tommykaira bored out a 26, ooops, fallin off my game, but yes i jsut hate to see teh RB go

[themadscientist]

The NEO series of engines come in RB20 and RB25 models in the R34 Skylines and Laurels, the NEO thing being some kind of cleaner combustion crap, *read* more frigging computers! They have variable timing as well. The RB26 in the R34 is not NEO equipped to my knowledge. Sorry to tell you guys but the RB is dead, period. Nissan is throwing all it's steam behind the VQ

[nlzmo400r]

wel i have faith in the VQ, it just seems kinda scary considering nissan is throwing all these new engines out and people still want big power, but wil have a lil trouble finding it in the VQ and QR

[mmdb]

that neo is only rwd i believe.... i just want to know if it'll fit in a s14 chassis like the previous rb25det's with the help of the crossmember from ti.

[nlzmo400r]

well if they're putting this neo motor into a gtr, then its going to be 4wd, but considering i know nothing about this motor,not even positive its real, and dont know what car it goes in for what year or model, i can be of NO help, haha

[mmdb]

haha well said. But it's not from a gt-r model. It's from the gts-t which is a rwd base skyline. Which is the rb25det. I'm just wondering if it'll fit into a s13/s14 chassis without major modifications. But i dont' think anyone has done it. Oh well :p

[nlzmo400r]

if its some sort of rb, with money, we'll make it fit , and also, the gts-t is also only the single turbo, but is it a 5spd or 6, i believe 5spd

[Phat_Optimo]

Heres a pic of it. Specs anyone?

[nlzmo400r]

well im believer, dont knjow specs, but i assume its along hte lines of hte rb25det

[mmdb]

hmm intake manifold is built covered by the spark plug cover. The other rb25det from the r33 skyline has it exposed. Looks like I'm gettin' the r33 motor :/

[nlzmo400r]

thats what it looks like from here

[Senko]

ok perhaps i can help here, the NEO rb25det is a 280hp single turbo engine, it is a 2.5 liter still, and the only major difference between it and the previous models of the rbseries is the VVT, and becuase of the VVT the head design is different, but everything else on the engine is the same as previous models.

Yes stock it is RATED at more hp then previous models of the rb series, and yes it does produce more then 280hp to the wheels. it uses a 5sp transmission for both the auto and manual if im correct, though im not to sure, but the mounting and everything are pretty damn close to the previous model of the engine (the rb25det out of the r33) but beside the VVT not much has change, and the hp is not that much more then a base rb25, but the VVT is quite nice to have if you wanna build it

BTW there was a 240sx with a neo rb25 in it for sale on ebay a while back, it was producing 554 hp at the wheel and around 800hp at the crank.

[mmdb]

was it in a s13 chassis? I think it was the guy from florida :/

[SWIFT_DRIFT]

BTW there was a 240sx with a neo rb25 in it for sale on ebay a while back, it was producing 554 hp at the wheel and around 800hp at the crank.

All those numbers were claimed. Kinda weird if you think about it, 800 at the crank, 550 at the wheels.....so, 250 hp lost in the drivetrain? BS!

[K1LLA916K]

could be possible if the idiot didnt tune his drivetrain properly. believe that the common power los through drivetrain is between 10 and 20 percent depending upon how u tune it.

[Senko]

he was using the SOTCK drivetrain, so yes it was a massive ammount of power loss. ive seen the car run, it was sweet, i also have a video of the car on a dino, wanna watch it?

[K1LLA916K]

naw dont relly like watchin races. better to do it. ive gone 2 a whole lot of illegal dragmeets and the only thing that entertains me is when people start taking off when they hear cop sirens...

[nlzmo400r]

theres no way this guy had a stock drivetrain and was running 55owhp, just not happening, that clutch and transmission would shread to a zillion pieces and fly out of hte back of the car

[K1LLA916K]

hmm not exactly.

[nlzmo400r]

i was being sarcastic, however a stock drivetrain with 55ohp....wont happen

[K1LLA916K]

ie- cousins mustang...437 horses on motor. 100 shot nos. stock drivetrain...