Maybe in a 240 it would at least get -3 mpg...lol! Anything is an improvement over the vehicle that motor is in from the factory.

 

^nahh but really rb25det would benefit you in the long run.
there's even a video for the rb25 swap

 

If you need a motor like from a Titan, I have a friend of a freind that owns a wreaker company with a yard full of cars they pick up around the bay area when they get into wreaks. They keep most of them (when they can) and part them out, sell the whole car or even chop them in half haha they sell the motors etc.

Ive been waiting for some Nissans to go in.. my friend grabbed a whole 300zxTT for cheapp since it got Tboned. Like a gold mined.lol

 

Adapting a manual transmission to the back of one of those badboys is more hassle than I want to deal with. At least with teh rb25, I can buy a driveshaft and install it instantly instead of waiting on one. I hate waiting and taking up shop space.

 

I think the VQ is too big to put in anything. Worse than a LSx swap IMO... I do however like the Vh45.. they are pretty stout motors themselves. I have contemplated dropping a vh45 in my truck and rocking it stock for a while.

 

how much does the stock rb25 on stock boost make in a s13? ive heard mixed answeres some say 245 some say 280

 

I'd say mid 250s with a 3" exhaust and a FMIC (things that I'd consider standard on any turbo motor).

 

yeah true. i read on wiki that they made a rb25 neo that had a special head that gave the motor 280hp if you search rb25det it will pop up. looks kinda cool

 

Drift Office did an RB25 Neo n/a in their drift car.. very cool

 

L28 FTMFW!!! J/k I like the idea of the VQ even though it's a little more expensive the stock hp and tq is right about where you want with low end tq and, with intake, exhaust and cams you'll be 300+/- easily and being all aluminum the weight can't be that big of a problem. GL with your decision either way sounds like you'll have fun.