Smith-02

different topends between the sc'd xterra and truck/pathfinders of the 90's, i looked into this a while back. supercharger on that motor, is only netting around 35hp at the wheels. if you're lookin for highway power a turbo would be more suited

ifly87

I would think you could have a t25 making boost at super low rpms, specially on a motor that size, even though it would run out of breath fast I dont understand how it could hurt the power your making now at cruise speeds.

TheMadScientist

I don't think a t25 would work that low considering that's what the 300zx Twin Turbo's come with stock. You could probably use like a pair of triple k's off the 1.8T volkwagens though they are absolutely tiny they might but your probably better running a single small T3 to get the boost response in the area you want.

90dx

Use a T25 single.Just weld a flange on where the crossover pipe is if that is right behind the motor and that should spool diesel like.I spooled a T25 at 2800ish on a 1.6 D16 and I would think you would be able to spool it well before 2000rpm.If you dont rev it over 4000 you should be fine as Im sure it would be pooping out by then.A junkyard blower setup with a Eaton supercharger off a GM etc may be something to look into though it cant be that hard to rig up.Good luck and post some pictures of wheeling your Pathfinder is bad *** and Im a ex lifted Toy owner myself.

hooohaa2

Thanks for the compliments about the truck, I was expecting hating here, lol. It scored a 1323.09 on the RTI, and that is a 40 degree ramp, not a 20 degree ramp. Of course it isn't all about the RTI.

The front diff is a high pinion Dana 44 out of a 78 Ford F250.

The supercharger is a good idea, man I would love a turbo though. I know a guy did a supercharger setup on this motor in another pathy with a SC out of a Ford taurus super coupe or something like that. Supposedly it ran well, he's boosting like 10 psi with it. He says it's cheap and easy, but now he is selling the setups for a profit and won't share the info with me.

A VG33 swap out of a newer frontier is another option. I could find a factory supercharged motor and toss it in.

I could always try a smaller T3, might as well since I have to redo the exhaust anyways.

So to be sure, I can in fact use the stock VG30E ECU to control my fuel/air under boost?

krustindumm

The VG is a tough engine, and I think the Z31 (oldschool 300zx) turbo setup may work for you. It is not intercooled, no blow off valve, and uses a T3 sized for about 300hp. Should be a very simple install, may even be able to snag the 300zx manifolds. If you put it on your higher compression engine it may even spool a bit quicker than on the 300zx.

A supercharger setup would definitly be ideal. The supercharge off of supercoupes is designed to be mounted seperate from the intake manifold (they have a factory air to air intercooler) so basically all you do is fab up some mounts to hold it in line with the crank pulley, do a few calculations on what size pully to run, and then hook everything up. I've seen one used on a 240sx and on an AE86, on both they mounted the charger where the a/c compressor was.

For fuel management I doubt the stock system will handel 8psi. I would switch to some higher flow injectors (150% or larger) and compensate with an SAFC or similar device.

DrSeuss

Don't most rock crawlers use fatass v8's and NOS? I know alot of the crazy scandinavians do stuff like your talking about.

FooK

god exocages are an eyesore...id much rather see dented up panels.

on a motor like that, you could spool something like a t3 42/48 or 60/48 pretty damn low. just run a single.

scandinavians are crazy ------s.

Smith-02

800hp v8's aren't that hard to make. you just need a shitload of head work, and compression around 11:1

hooohaa2

I knew absolutely nothing about those supercoupe SCs, but what you are telling me about them makes me think it might be my best bet.

I have a body lift on the truck so I have plenty of room toward the top of the motor to work with.