Posted: Sep 23 2008 at 9:17am | IP Logged

Well lets go down the list.  I'm assuming you have the VQ40DE and have been looking at JWT for most of the stuff

1.) Cams, Stage 1 would be a good place to start, but you're not going to get too much without some other upgrades.  That's when it'll make a big difference.  Honestly just save your money and spend it on other stuff first, then come back later once you've upgraded some other internals

2.) ECU reflash, this can be helpful even without the cams, but most places will want to know what current setup you have, or planning on putting in.

3.) Pulley Kit, I would start here as one of your 3.  This will give you some HP and torque right away without having to reflash

4.) Headers, another good place to start, this will free up some of your exhaust flow.  The better a motor breathes, the more HP and torque.

5.) Hi-flow cats, this is kind of a gray area.  I've seen tests done on dynos that show no difference between a new cat, and a hi-flow.  Sometimes though you can get a hi-flow for cheaper than a stock one.  I would do this the same time you get the ecu flashed, because some ECUs will throw a code if you change this out. 

6.) TB spacers, I haven't seen any yet for the new 4.0L, but I don't have any newer Nissan's so I haven't been looking either.  I know there has been good results with the VG30E motors.

7.) Solid mounts, this is something to be very careful with, and don't recommend for street vehicle.  Your setup is only as strong as your weakest link.  If you upgrade your mounts (which are fairly cheap) it puts your weakest link to something else, mainly your U-joints.  But could also move it to your rear end, driveline and tranny output shaft.  I would get the rubber exchanged for urethane mounts, but wouldn't solid mount it unless you plan on doing a drag vehicle.  The gains are minimal from this, and not worth it.

8.) Custom intake, Have fun , I had plans for doing one on a 90 HB using the hood vents for a RAM intake. 

My opinion, do 3,4,and 6 now for your first 3.  Then do 1,2, and 5 later on at the same time.  Stay away from 7, and have fun with 8.

Posted: Sep 24 2008 at 4:55pm | IP Logged

Well if you want to go supercharged, i would look at lowering your compression ratio some.  Getting the valve springs that JWT sells. 

I would start checking around to see if someone has a shift kit for the tranny yet.  To help firm it up.

You'll also want to try and boost your fuel pressure.