GT Motorsports: VQ37VHR Engine Internals Pistons, Rods, Stroker Kits
 

As many of you know we have a full line of engine products for the VQ37VHR. We think the 370Z is going to be a great platform to modify, so we are ready to go when you are!

GTM Arias Extreme Duty Pistons for VQ37VHR:
-Zero-silicon aluminum forging
-Ultra Light Weight design

Pricing and Purchase Information: GTM VQ37VHR Arias Piston Set


GTM VQ37VHR/HR Connecting Rod Set:
-4340 Billet Chromoly Steel
-H-Beam Design
-Ultra Light Weight
-ARP 2000 Rod Bolts

Pricing and Purchase Information: GTM VQ37VHR/HR Connecting Rod Set

GTM VQ37VHR/VQ35HR Stroker Engines:
-4.2L Un-sleeved and 4.5L Sleeved kits available
-Get the most out of your block
-Make more power, easier.
-Amazing gains in torque.

Pricing and Purchase Information: GTM Stage 5 VHR/HR Stroker Shortblock

-George
GT Motorsports

mmmmm i want this for my G. now to talk to the wife.


Hey George you want to convince her for me?

I'm going to need a box of tissue...I think I just "jizzed in my pants."

Oh...$hit!!!:leghump: :drool:

I am totally buying this when my grandparents die.

Wait...did I just say that? :o

Hummm, Nissan 450Z :bowdown:

Dam dude.......lol you really wanna build your Z that bad huh??? lol j/k I feel you though

maybe they are dead... cause i know this thread was... :)

bump

I'll put this thread on stand by...just in case...

It would be very helpful to get some idea of the install price for the parts. The parts price seem very reasonable.

+1

Ever since I found out I had high detonation on my last kit I've never felt comfortable beating on my car. Been thinking about a rebuild rather than sitting here waiting for the bomb to explode. Hopefully Sam or team GTM can give me some advice

Subscribing for future purposes. :tup:

i think its neat how this thread took 2 almost 3yrs to hit 6 posts and then now that there are more turbo's and superchargers and people are getting ready for more boom 6 more in a week

Disclaimer: Noob posting alert. :wtf2:

In relation to the GTM Stage 5 VHR/HR Stroker Shortblock 4.2L or 4.5L engine kit:

Would this be suitable as a daily driver?

With this installed, is forced induction still required to achieve the kind of power and torque that the TT and SC kits are producing?

I *think* the stroker kits are designed to have lower compression ratio with FI in mind. Thus, I don't think you would make big power going all motor with one of those kits without changing some things.

That sounds like something that is worthwild, but I hope someone from GTM chimes in to clarify. I have been debating on building the bottem end during my install, but I am not looking to push 700 HP at any point in the Z. I am looking to make it as reliable as possible while giving it more guts. Decisions..................:ugh2:

No not at all, as If your were to build an all motor @ like 12 to 1 cr on a 4.5l i feel you would be around 400 whp and prolly 300 tq. Which it a very very fast car. Yes larger injectors will be need as with exhust.






This stroker kit is on my grocery list...

Sh!t, that sounds soo awesome. I know an N/A stroker Z motor isn't the "best" bang for your buck for making power, but there's just something really cool about staying n/a and doing something that radical. :driving:

follow up ? for jnaut, would 12 to 1 cr be run on pump gas 93 octane?

Will have to remember this when I get my GTM 4 stage next year

Yes, I feel it would be with the dynamic timing in our ecu. Yes u r correct... being able to say "yea its n/a, making that power." What else is awesome, if u have a warranty issue as lone as its not the engine itself, they would never know. U can't see in the engine hahaha score for the consumer

Shoot, if 12 to 1 is acheivable and safe w/pump gas, a 4.5l stoker that could rev safely to 8K would be sick! Honestly, if it could for sure make 400whp or so with 300wtq, I think I'd def go this route over a TT setup. It'd be perfect for track days since the excessive heat generated by a TT setup wouldn't be an issue. :excited:

Yes, i totally agree for track set-up. Less chance of issues, plus exiting a corner is more consistent. I keep you in the loop, as I have a customer contemplating the idea of a stroker kit in his 370z.

Hey Jason look at the piston & rod kits, is that everything I would need?

From whats in the picture , what else you need you will get from nissan.

What else would I need? I could search and see if GTM sells it

nope, nissan only. unless u want head studs.

Hey Jason, Rods & Pistons? or stroker kit?

in for more info, this is really sweet if 400hp is potentially possible on n/a

I dont think yall understand that these bad boys have been out for more than a year and Sam is the only guy in the world with pistons and rods for a 370z. Got to love how GTM is mostly exclusive to Nissan and does not set his focus on a ton of different manufactures of vehicle. This keeps us 370/nissan guys with a plethora of fresh product. Some companies want to sell it all and leaves the choices limited. Im pretty sure if you could convince Sam that adding a shark fin and laser beam to roof of the Z made nice power gains, he would produce them for us all ;)

I liked the same thing about AMS when I had an EVO. I like it when a company focuses on one thing and does it right!

Carrillo makes rods so does eagle ,and K1

Weisco makes pistons 9:1 off the shelf or you can order a custom set.

Also brian crower makes a stroker kit for the VHR.

Wouldn't this kit also make the engine more reliable if not going the turbo route since the internals will be stronger and is it actually possible to be making those numbers on an n/a v6? I think a Porsche had a v6 engine that was running n/a and was making those numbers but I'm not sure.

Did not know that thanks. :tup:
9:1 ? not sure if that is a good match for our engine. You might have octane issues if you are looking for high hp numbers, with such a low compression.



I am with you. Also do you plan on building your engine and ripping up the boost?

9:1 is perfect if your looking to run a lot of boost with a turbo set up. For a supercharged car I would go higher,because of pulley limitations. There wont be octane issues with with 9:1 low compression, never heard of that one.

Sam recommended to me 10:1, just saying :tup:

:iagree:

Not a bad choice at all for a superchared build:tup:

I did say "Higher hp numbers" should have been more specific I apologize:tiphat:. There can be fuel challenges with both high and low compression when trying to gain “High hp numbers” or levels. Finding the sweet spot would be ideal for any setup.
It goes both ways. You dont want to go too low or high in my book. This is because the lower you go the more boost you need to throw at it. More boost means higher temps and higher temps means greater chance of detonation. Same thing with high compression. Higher compression naturally runs hotter than lower compression. As you turn up the boost on higher compression you will be adding more heat as well which means higher chance of detonation. High boost low compression or Low boost High compression is fine but fuel issues are known to come up with wanting to gain high hp levels. What I am trying to say is. 10:1 seems like a better choice than 9:1 just cause you need less boost to make the same power and turbo's will spool quicker with the 10:1 application vs 9:1. I dont know how this would work with superchargers though. The whole point of lowering the compression would be to create less heat which makes a less chance for detonation which makes it easer to tune and give a little forgiveness when tuning if the tune is a tad off. Which means safer to most people.

Also, it seems like 10:1 works out perfect for the GT-R.

The GTR has a compression of 9:0:1 not 10:1. With that being said 9:1 is not considered to low for a turbo car. Yes you will need more boost to make the same power that you would on 11:1.I will use stage 2 GTM turbos as an example,with those turbos with 9:1 you will not have octane issue's before those turbos max out.I do agree with you that they will spool slower the are small turbos ,and I doubt you will notice it.With a supercharged car you don't want to go to low because boost is limited by pulley's/ Blower size.

In the end its all about a person's power level goal I have yet to see a build 3.7,or here of anyone that has done it.Now with the DE motor's there are plenty of people that run lower than 9:1,they make plenty of power without octane issue's.

I'm going to be actually building mine so you won't have to wait long ;) My goal is 550+whp, -I will reach my goal-