Rb25 engine swap a maxima

[rbmaxima]

I need to know if anyone out there has ever tried or succesfully RB swaped a nissan maxima. I just think it would be pretty bad *** and just need to know if it can be done.

[snwbrdr435]

probably not it would cost way to much money and time. Just go turbo.

[jltibbs]

Welcome to NICO!

I have always thought it would be awesome to do that, but snwbrdr435 is right. I checked on the price and it looked to be almost $15,000 in parts alone. Once you get the motor you have to do (depending on the motor) either a RWD or AWD conversion. Lots of $$$. You should do it though.

[mtcookson]

The biggest issue you will face is the length and height of the engine. Being an inline 6 it will be quite a bit longer and taller than the stock V6 making a front wheel drive application nearly impossible (it will likely fill the engine bay left to right and may not even clear the hood without laying it over quite a bit). Hyundai has actually done a FWD I6 setup though, but I'm sure they had a special transmission (at least very different than most FWD transmissions) to mount the engine properly.

Personally... I don't think the RB is all its cracked up to be. I think your stock VQ is a much better engine. Why? Inexpensive, very light weight, compact, and strong. It doesn't get much better than that. Those are some of the reason why they replaced the coveted RB26DETT in the JGTC R34 Skyline race car with a turbocharged VQ V6... which made for a faster car.

Don't buy in to all of the RB hype, not only would be it very expensive and next to impossible to do in a front wheel drive application... there would simply be no point other than to be unique... but that's a hell of a lot of money to simply be unique.

[Rex]

What about using an older 810/Maxima that was RWD??

[mtcookson]

Now that would make the whole ordeal much easier... and would actually be pretty cool. Already has a I6 so you wouldn't upset the balance and would be a badass sleeper for sure... makes me want to go find one and do it.

For a car like that though, I'd do the DOHC RB30 setup (something like an RB30 block with an RB25 head I believe). The RB30's have a slightly longer stroke than the VG30's so they would probably be torque monsters and would move a larger car like the old Maxima really well (not that the RB25 couldn't... its just that you'd be revving to make the power whereas an RB30 should have great low end power which is nice on the street and in heavier cars).

[rbmaxima]

thanks for all that and ive heard that some skylines had the VQ in them but ive never seen one and do you know where i could find one of the supercharged v6 or just the supercharger its self because supercharging my maxima is what i wanted to do at first but i cant find a supercharger anywhere

[rbmaxima]

thanks jltibbs for doin all the pricing for me i havent had time to do that yet thats why i started this forum. yeah me and my buddy was also thinking of usin the RB26 out of the AWD skyline and a rear end out of a 240sx or something and making it AWD but i figured that would be way to hard. plus i dont have a back up car right now

[snwbrdr435]

your cars vq and the v35 skyline vq (which is a g35) are completely different. In a sense they are the same but in reality they arent. RWD 3.5l vq in the g35 350z if you are going to supercharge it stillen made a kit a while back but im pretty sure they are discontinued you could swap the 3.5l vq thats in the 5.5 maxima i35s. But since you do not have a back up car swaping a motor is probably not a good idea.

edit sorry if that doesnt make sense friends 21st birthsday today.

[MinisterofDOOM]

thanks for all that and ive heard that some skylines had the VQ in them but ive never seen one and do you know where i could find one of the supercharged v6 or just the supercharger its self because supercharging my maxima is what i wanted to do at first but i cant find a supercharger anywhere

The G35 is the Skyline with the VQ.Unfortunately, the RWD and FWD VQs are quite a bit different and not interchangeable.

[rbmaxima]

they might ve different but will the supercharger fit my maximas VQ

[rbmaxima]

Do i still need to put better internals in my motor if i supercharge it?

[mtcookson]

The screws supercharger kit offered for the 350Z might be able to work on a Maxima but the major downside is they're tall, as they are bolted on top of the engine, meaning the hood probably won't clear. You would likely have to do some major hood modifications to be able to close it.

Now, I believe Stillen used to make a centrifugal supercharger kit for the 4th gen Maxima's but they're no longer in production to my knowledge so you'll have to search for a used one.

Internal wise, you don't really have to change them out as long as you keep the boost relatively low and tune it well.

Personally, I'd probably go with a turbo setup instead. It takes more fabrication to pull off but they just tend to perform a lot better than superchargers. The screws s/c is pretty much the best one out there as far as power and efficiency goes but they've been pretty unimpressive on the Z's from what I've seen. They do offer quick boost but a good turbo setup can still easily outperform one.

The centrifugal superchargers, like in the Stillen kit for the Maxima, are pretty efficient but still suffer from "boost lag" in that you don't have instant boost like the roots and screws superchargers and boost is linear... meaning, you won't have peak boost till redline since boost continually builds. This is the centrifugal s/c's weakest point in my opinion. If it were able to hit peak boost early and keep it there till redline it would probably be the best option out there but as its unable to do that, the turbo still shines.

In the end, it really just depends on what your goals are. How much power do you want? If you just want a slightly faster car but aren't looking for a ton of power the centrifugal s/c and turbo would be a good choice. If you're wanting to make a lot of power down the road the turbo would be best choice.

[rbmaxima]

thanks man youre pretty dang smart about all this crap. i found a T28 turbo kit for a very reasonable price. how many horses do you think ill have after thats bolted on and what ive been lookin up i probably shouldnt have to put forged pistons in and still run about 10 lbs of boost. is that pretty true.