engine rebuild with new turbos vs. new engine

[salem1oliver]

Hey guys,
I was just wondering if I could get some of yours opinions. In about a year or so I plan on completly overhauling my 1995 Z32tt. WHen i go to have this done the engine and turbos are going to have around 120,000-130,000 miles. I plan on completly redoing the interior and exterior as well as the engine. Do you think I would be better off with an engine rebuild with new more powerful turbo's or should I go for something more along the lines of putting in the vh45dett? I want to end up between 400-500 horsepower. And plan on spending up to $20,000 for the total makeover of the vehicle. Any responses are greatly appreciated.

[k3smostwanted]

Originally Posted by salem1oliver

Hey guys,
I was just wondering if I could get some of yours opinions. In about a year or so I plan on completly overhauling my 1995 Z32tt. WHen i go to have this done the engine and turbos are going to have around 120,000-130,000 miles. I plan on completly redoing the interior and exterior as well as the engine. Do you think I would be better off with an engine rebuild with new more powerful turbo's or should I go for something more along the lines of putting in the vh45dett? I want to end up between 400-500 horsepower. And plan on spending up to $20,000 for the total makeover of the vehicle. Any responses are greatly appreciated.

well i would stick with the VG30DETT if you only want 400-500hp because it will be easier to overhaul and upgrade your car to those numbers rather than swapping in a VH and then Twin Turboing it. to get your engine to 400-500hp should run you about $6-7k and thats thinking large. a good fresh paint job should cost you about $2500-$3500 and then people sell full interior kits for $500-$1000. im sure you wanna do more than that but i was just giving you some ball park figures that i have looked into, in the past.

[JCCR]

well if you have basic boltons you should be at around 400hp and if you want 500hp go with the JWT spornts 500. of course u would have to have your boltons and upgrade your injectors/boost controller. but if you want to rebuilt check out www.sgpracing.com or www.z1motorsports.com they have rebuilt packages. if you rebuilt, your engine will handle more boost so bigger turbos would probably be a better idea. as for me 500hp is enough

[Zgringo]

Your talking 2 different animals here. The VG30DETT engine with 700-800HP is about the limits for a relible street engine whereas the VH45DE 1,000+HP would be a good street engine. Being you have a TT engine already in your car and only wanting 4-500HP then with a few changes can be reached easly, but if you intend to get serious later on then by all means go the VH45DE route. The VH45DE route would be the cheaper way to go in the long run.

[ExTrEmEDrIfT]

what car does tha vh45de and the vq45de come stock in??

[Broke_as_****]

Originally Posted by ExTrEmEDrIfT

what car does tha vh45de

Infiniti Q45

and the vq45de come stock in??

To my knowledge, no such engine.

[Zgringo]

Originally Posted by Broke_as_****

Infiniti Q45



To my knowledge, no such engine.

Oh so right....their's a VH41DE, VH45DE and a VK45DE.

[Broke_as_****]

A 4.5 liter VQ block...I've seen a VQ30 torn down and there was a healthy bit of spacing between the cylinders. The VQ35 is stroked AND bored so that will cut that down some. I don't imagine you could possibly get another liter out of the VQ block without having utterly paper thin cylinder walls and stroking the crank til it was near hitting the bottom of the block. Even then I doubt you would have another full liter.

[Zgringo]

Here you go....all the Nissan engines.

http://www.freshalloy.com/site/featu...nes/home.shtml

[Broke_as_****]

Originally Posted by From the VG section

For 2001, the Frontier gets a SC (Super-
charged) model powered by a factory installed Eaton Supercharger.

Any insight into how this was mounted? Taking a look at a factory supercharger might be a good indication as to how an aftermarket system can be spliced in.

[Zgringo]

Originally Posted by Broke_as_****

Any insight into how this was mounted? Taking a look at a factory supercharger might be a good indication as to how an aftermarket system can be spliced in.

Great minds think alike...I was thinking the same thing..Isn't it amazing about all the shit I've taken about using a supercharger, and now Nissan is using it on there engine?
Damn factory is finally catching up with me.

[Broke_as_****]

Factory pieces are getting pretty advanced. See that part on Fresh Alloy with about the microfinished cams and moly coated pistons for the VQ? That used to be race tech only.

Anyway, might have to search around for a supercharged model at an area dealer and arrange test drive. Snap some pics of the engine.


Then pretend to be unimpressed.

[Zgringo]

Originally Posted by Broke_as_****

Factory pieces are getting pretty advanced. See that part on Fresh Alloy with about the microfinished cams and moly coated pistons for the VQ? That used to be race tech only.

Anyway, might have to search around for a supercharged model at an area dealer and arrange test drive. Snap some pics of the engine.


Then pretend to be unimpressed.

Might not have to pretend!!!!!!!

[Hodo]

I think Eaton has pictures on there web site for the SC frontier. And its a roots style setup, pretty simple. Like I have said before I dont think supercharging a Z32 is all that hard except finding space under the hood.

[k3smostwanted]

i have said over and over again, someone needs to take a look at the 3.3L supercharged VG in the frontier...im wonder if it can be modded and swapped into the Z32. maybe new mounts...i did a little research a while back and came up with nothing on the frontier because nobody mods these cars. maybe even the Z32 trans. bolt right up to the frontier 3.3L...

does anybody know anything about the eaton supercharger on the GM 3800 series 2 motor, off the top of there head??? i will research at a later date but i dont really feel like it right now. maybe someone knows something...