Forced Induction Discussion of turbos , superchargers , and nitrous upgrades on the G35

Rebuilt motor??????

Old Aug 14, 2006 | 12:46 AM
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Rebuilt motor??????

what is the require items that is needed in order to achieve the 400+ hp on the VQ engines. cause i am going turbo but i want to do some modification to the engine before i get the kit put on. its a new car just dont want to blow the engine. any suggestion would help thanks.
 
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Old Aug 14, 2006 | 03:24 AM
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Forged Rods, Pistons, and I would look into sleeving as well...

The VQ Rods are a very weak point of our engines unfortunately.
 
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Old Aug 14, 2006 | 04:24 AM
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I don't think sleeving is needed for around 400 hp. A built short block with lower compression pistons, stronger rods, new studs and gaskets would build in some added safety and longevity. Cams and headwork would make getting to 400 a lot easier as far as boost levels but 400 is not that hard with anything other than the Stillen.

What kit are you planning on running?
 
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Old Aug 14, 2006 | 07:21 AM
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Don't do the upgrade ahead of time, do it all at once and you will save a couple grand on labor.

Here is one of several sources out there for engine upgrades

http://sgpracing-store.stores.yahoo.net/sgpravqmo.html
 
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Old Aug 15, 2006 | 06:05 PM
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Bill,

I just spoke w/ Shaun at SGP....they have a guy running 500 whp on stock internals w/ the Greddy TT and the HKS F-CON V-PRO. Shawn says that the V-PRO makes a world of diff. Of course, at 3.2K it is almost as much as a basic short block, lol.

Nonetheless, I bet you would never have engine failure w/ the V-PRO at 400 whp.

Eventually, I am going to get the upgraded short block when I have my TT's installed. the 3.7 K price tag doesn't include labor. W/ labor , TT it will probably come out to 14K. And that doesn;t include everything else (exhaust suspension, V-Pro, etc).

The thread starter should be ready to shell out 20-25K if he wants to do FI right.
 

Last edited by Dr_jitsu; Aug 15, 2006 at 06:09 PM.
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Old Aug 15, 2006 | 11:05 PM
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Originally Posted by Dr_jitsu
The thread starter should be ready to shell out 20-25K if he wants to do FI right.
I was looking at around 5k just to build the engine right to go FI. what would u guys get if u had 5k ?
 
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Old Aug 16, 2006 | 08:22 PM
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A proper bottom end build will probably be at least 6k, 7k if you use quality parts.

By the way, I just got back from SGP....my V-PRO w/install and tune is running me 4.3 K.....a lot of money just for engine management, but hopefully it will be worth it.
 
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Old Aug 16, 2006 | 08:28 PM
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Also, as Bill notes, you will save nearly 2K is you do the engine rebuild and TT's at the same time.

Bottom end build and TT's will run aroud 16 K together. And remember, you still need engine management, clutch, suspension etc.

Don't do FI unless you have everything accounted for. Its not worth it because you will pay more in the long run.
 
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Old Aug 16, 2006 | 08:39 PM
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Originally Posted by Dr_jitsu
A proper bottom end build will probably be at least 6k, 7k if you use quality parts.

By the way, I just got back from SGP....my V-PRO w/install and tune is running me 4.3 K.....a lot of money just for engine management, but hopefully it will be worth it.
What components equal 6-7k? You can get a mildy built fully assembled and timed long block for under 6k.

Not sure what happpened with your other threads on FI, are you doing it?
 
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Old Aug 16, 2006 | 09:43 PM
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Rookie,

Show me a written invoice for a fully built long block for 6K from a reputable shop....I have spoken w/ the top three in the country, none can do that, unless you are just talking about parts, not labor.

You can get a good quality shortblock plus labor for a little under 6K. Upgraded short block (Pauter rods, etc.) is 3.7 K....but the labor ads 1.8. So 5.5K total and there are always extras.

I am probably going FI in about 6-8 months. Today I sprung for my V-PRO and tune.
 

Last edited by Dr_jitsu; Aug 16, 2006 at 09:51 PM.
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Old Aug 16, 2006 | 09:58 PM
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Contact Todd from builtzmotors to confirm if needed. Here was an old thread, which matched a quote he had given to me directly so it's a normal price for him. http://my350z.com/forum/showthread.php?t=188090

SGPs basic longblock build is fine for the 400hp goal. Builtzmotors package uses better pistons, headgasket, and uses ARP head studs.

There are lot's of resources out there, using one you're confident and comfortable with is probably the best thing to do. Doing it all in one spot has it's advantages, but make sure you're being taken care of for doing so.

Fcon N/A?
 
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Old Aug 16, 2006 | 10:50 PM
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Not bad for 5500 but you have to pay R&R on top of that and this kit comes with stock cams and stock valves, upgrading them costs a couple of thousand...R&R is also about 2000, total would be 9500 which is what I was quoted by 2 shops in the bay area.
 
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Old Aug 16, 2006 | 11:01 PM
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Not sure what r+r is? It's a mildy built motor with the weakest parts upgraded, if 400 is the goal it is way more than enough. Doing it all at once should save on turbo/engine install costs, not sure how much it saves though.

Upgrading your existing short/longblock is pretty expensive labor wise and takes time with the machine work needed. Using it as a core exchange and getting a decent package should make the most sense.
 
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Old Aug 16, 2006 | 11:08 PM
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Sorry R&R is removal and re-installation, I have done this 3 times on my cars so I get used to using that term a lot If 400hp is the goal then I don't see why you need to upgrade the engine, I had 430rwhp on my SC and drove the car for way over a year like that, if it's piece of mind then that is another story.
 
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Old Aug 17, 2006 | 12:15 AM
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Rookie,

Link doesn't work unless your a member of my350z.

Here is the link to SGP's engine building services: http://sgpracing-store.stores.yahoo.net/sgpravqmo.html

The upgraded shortblock is 3.7 K, byt that doesn't include labor and removing, reinstalling the motor (r&r). That engine is good for 650 whp...my goal is 500-550.

Is SGP overpriced?

They are charging a lot (4.3K) for my V-pro...a bit steep, but who els can do it?
 

Last edited by Dr_jitsu; Aug 17, 2006 at 12:18 AM.
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