GTM Performance Engineering VQ45VHR-Our Journey to The 1000 HP and Beyond

DIGItonium · 10-25-2010, 07:13 PM

Wow, so SEMA is next week? I wonder if Sam has birthday deals... you know, 11/05 [nudge].

Any plans, Mike?

bullitt5897 · 10-26-2010, 11:41 AM

lol I will have pics and vids from SEMA yall can rest assured on that

I have a whole week to get up all the content from the show plus I have a LOT of people to meet with while I am there

maybe some new products might be in stored for you guys

induetime · 10-27-2010, 02:30 AM

I have been following this for a couple of weeks now, but I just registered to the forum. Thanks for sharing your build! I'm looking forward to seeing the progress & Sema pics.

bullitt5897 · 10-27-2010, 08:37 AM

thanks induetime! So I talked with Sam last night and the car will not be running before SEMA... SAM and team have been working hard to improve on the GTR intake manifold design!!!!!!! when he told me my jaw dropped! From our conversation last night they should be finishing up the mods this week and will be getting the intake ready for CAD and 3D scanning when I get back from SEMA. A week or so after that I will have the new intake and then testing begins.

My only wish is to have my car back before christmas *fingers crossed*

toner123 · 10-27-2010, 09:18 AM

Quote:

Originally Posted by bullitt5897

thanks induetime! So I talked with Sam last night and the car will not be running before SEMA... SAM and team have been working hard to improve on the GTR intake manifold design!!!!!!! when he told me my jaw dropped! From our conversation last night they should be finishing up the mods this week and will be getting the intake ready for CAD and 3D scanning when I get back from SEMA. A week or so after that I will have the new intake and then testing begins.

My only wish is to have my car back before christmas *fingers crossed*

Thats great news Mike. I am sure you will have it back before then. I am sure if you ask Sam he will make it happen. Now I got a question for you well questions. Isn't the intake manifold on the stock Z the main reason why we cant go over 12 psi. If so is sam going to make one like yours to start marketing? I know thats more of a Sam question but I know you guys talk alot more then me and him. Last, Sam tore apart your engine, what do the internals look like, meaning what are they made out of, meaning are they forged. Just wondering if this car can handle more then 12 psi, or can we use 12 psi more often then a few times. personally I only use 12 psi when I know I am going up against a tough car. In other words I get scared when I turn the boost that High because I am afraid I am going to blow the engine.
Thanks MIke
Frank

bullitt5897 · 10-27-2010, 09:51 AM

Quote:

Originally Posted by toner123

Thats great news Mike. I am sure you will have it back before then. I am sure if you ask Sam he will make it happen. Now I got a question for you well questions. Isn't the intake manifold on the stock Z the main reason why we cant go over 12 psi. If so is sam going to make one like yours to start marketing? I know thats more of a Sam question but I know you guys talk alot more then me and him. Last, Sam tore apart your engine, what do the internals look like, meaning what are they made out of, meaning are they forged. Just wondering if this car can handle more then 12 psi, or can we use 12 psi more often then a few times. personally I only use 12 psi when I know I am going up against a tough car. In other words I get scared when I turn the boost that High because I am afraid I am going to blow the engine.
Thanks MIke
Frank

Hey Toner buddy!

Ok, my intake on the car right now is the prototype for a new intake going to be made

I cant go into much detail because our conversation was very brief on the subject.

Sam did not tear apart my engine however, he did have a spare 4.5L stroker short block laying around and we made all of the mods to that motor. from my understanding the motor can handle the stress levels that of a car putting out 12 psi. However, your longevity may be at risk with that motor. from my understanding the internals in our motor are slightly beefier if not the same as the 3.5HR motors. From their history they are fine up to 12psi...

hope that helps

toner123 · 10-27-2010, 10:14 AM

Quote:

Originally Posted by bullitt5897

Hey Toner buddy!

Ok, my intake on the car right now is the prototype for a new intake going to be made

I cant go into much detail because our conversation was very brief on the subject.

Sam did not tear apart my engine however, he did have a spare 4.5L stroker short block laying around and we made all of the mods to that motor. from my understanding the motor can handle the stress levels that of a car putting out 12 psi. However, your longevity may be at risk with that motor. from my understanding the internals in our motor are slightly beefier if not the same as the 3.5HR motors. From their history they are fine up to 12psi...

hope that helps

It does thank you very much.
Frank

Jquad · 10-31-2010, 01:12 PM

Quote:

Originally Posted by bullitt5897

SAM and team have been working hard to improve on the GTR intake manifold design!!!!!!! when he told me my jaw dropped! From our conversation last night they should be finishing up the mods this week and will be getting the intake ready for CAD and 3D scanning when I get back from SEMA. A week or so after that I will have the new intake and then testing begins.

My only wish is to have my car back before christmas *fingers crossed*

Sweet werd

Q8y_drifter · 10-27-2010, 12:13 PM

I don't think the internals are forged. Sharif@Forged cracked open the HR engine when they first came out back in 06/07 to see the internals, structure, etc and I believe he said they are cast, but they are much stronger than the DE. The VHR internals are just as strong as the HR. Anyhow, I think Sam posted pics in this thread when he took out Bullitt's engine with many pics of the internals and block. The block itself is very well built. just the internals that need beefing up if you wanna run high boost all the time.

cptspeed · 10-27-2010, 04:36 PM

I just don't get it. How much more would it really cost for nissan to install forged rods and pistons. At least as an option or in the nismo for crying out loud. If my car had the strength to handle FI and enjoy a longer life it would be a lot farther along mod wise than it is now. Wake up nissan.

christian370z · 10-27-2010, 06:54 PM

Quote:

Originally Posted by cptspeed

I just don't get it. How much more would it really cost for nissan to install forged rods and pistons. At least as an option or in the nismo for crying out loud. If my car had the strength to handle FI and enjoy a longer life it would be a lot farther along mod wise than it is now. Wake up nissan.

It might be hard for them to justify the engineering to produce those types of parts in order for the forged internals to meet OEM specifications for durability. Besides, there probably isn't enough demand from the average 370Z buyer to justify the additional cost.

RCZ · 10-27-2010, 04:46 PM

New products for 370? Yay!

wishihadnav · 10-27-2010, 06:58 PM

^^this.

WarmAndSCSI · 10-27-2010, 07:07 PM

I wish people would leave this kind of discussion to actual engine builders.

1.) The rods in the VHR are forged. I can't think of a single import V6 engine that has come with cast connecting rods since 1993.
2.) Stock Japanese crankshafts are all forged now, with little need for upgrading unless you want to stroke the engine or are pushing some serious specific output.
3.) Many newer high-performance import engines come with forged pistons, but not of the strongest 2618 alloy and instead 4032 or similar alloys. This is due to the low silicon content of 2618 causing greater piston expansion during operation. A factory engine cannot be built to proper specs with emissions and reliability in mind with 2618 alloy pistons - the piston-to-cylinder wall clearance must be very high in comparison to stock hypereutectic or 4032 alloy pistons (0.003-0.005" vs. 0.0008-0.0012" or so).

That said, the forged rods that come with the VHR may or may not be strong enough to handle a certain amount of torque output. As with the rod cap fasteners as far as being able to handle abuse at a certain power level or RPM. In addition, the stock pistons - even if 4032 forged (looks are deceiving, they may still look like cast pistons) - aren't very strong given the 11:1 CR.

racerxj17 · 10-27-2010, 07:37 PM

Quote:

Originally Posted by WarmAndSCSI

I wish people would leave this kind of discussion to actual engine builders.

1.) The rods in the VHR are forged. I can't think of a single import V6 engine that has come with cast connecting rods since 1993.
2.) Stock Japanese crankshafts are all forged now, with little need for upgrading unless you want to stroke the engine or are pushing some serious specific output.
3.) Many newer high-performance import engines come with forged pistons, but not of the strongest 2618 alloy and instead 4032 or similar alloys. This is due to the low silicon content of 2618 causing greater piston expansion during operation. A factory engine cannot be built to proper specs with emissions and reliability in mind with 2618 alloy pistons - the piston-to-cylinder wall clearance must be very high in comparison to stock hypereutectic or 4032 alloy pistons (0.003-0.005" vs. 0.0008-0.0012" or so).

That said, the forged rods that come with the VHR may or may not be strong enough to handle a certain amount of torque output. As with the rod cap fasteners as far as being able to handle abuse at a certain power level or RPM. In addition, the stock pistons - even if 4032 forged (looks are deceiving, they may still look like cast pistons) - aren't very strong given the 11:1 CR.

1GR engine uses powered metal rods, as do several other engines these days. far cry from a solid forged rod....

10-25-2010, 07:13 PM	#1 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 43	Can I haz boost? Wow, so SEMA is next week? I wonder if Sam has birthday deals... you know, 11/05 [nudge]. Any plans, Mike? __________________

10-26-2010, 11:41 AM	#2 (permalink)
bullitt5897 Premium Member Join Date: Jan 2009 Location: North GA Posts: 6,831 Drives: Twin Turbo Z34 Rep Power: 3683	lol I will have pics and vids from SEMA yall can rest assured on that I have a whole week to get up all the content from the show plus I have a LOT of people to meet with while I am there maybe some new products might be in stored for you guys __________________ *Shop Cars: 2013 318whp Nismo VspecII 370z SOLD, 2009 1000hp+ 93oct 4.0L TT 370z Fast Intentions STAGE 4 #054*

10-27-2010, 08:37 AM	#4 (permalink)
bullitt5897 Premium Member Join Date: Jan 2009 Location: North GA Posts: 6,831 Drives: Twin Turbo Z34 Rep Power: 3683	thanks induetime! So I talked with Sam last night and the car will not be running before SEMA... SAM and team have been working hard to improve on the GTR intake manifold design!!!!!!! when he told me my jaw dropped! From our conversation last night they should be finishing up the mods this week and will be getting the intake ready for CAD and 3D scanning when I get back from SEMA. A week or so after that I will have the new intake and then testing begins. My only wish is to have my car back before christmas fingers crossed __________________ *Shop Cars: 2013 318whp Nismo VspecII 370z SOLD, 2009 1000hp+ 93oct 4.0L TT 370z Fast Intentions STAGE 4 #054*

10-27-2010, 12:13 PM	#9 (permalink)
Q8y_drifter Enthusiast Member Join Date: Mar 2010 Location: Kuwait Posts: 306 Drives: 08 Infiniti G35 5AT Rep Power: 16	I don't think the internals are forged. Sharif@Forged cracked open the HR engine when they first came out back in 06/07 to see the internals, structure, etc and I believe he said they are cast, but they are much stronger than the DE. The VHR internals are just as strong as the HR. Anyhow, I think Sam posted pics in this thread when he took out Bullitt's engine with many pics of the internals and block. The block itself is very well built. just the internals that need beefing up if you wanna run high boost all the time. __________________ 08 G35 5AT Sedan \| Stillen CBE \| Invidia HFC \| Injen CAI \| Uprev Tune \| Akebono BBK \| Tanabe Coilovers \| Hotchkis Sway Bars \| GTSpec FSB \| Black Headlights & Grille \| Volk GT-F Wheels \| Hankook V12 Evo Tires

10-27-2010, 04:36 PM	#10 (permalink)
cptspeed Track Member Join Date: Jul 2009 Location: tampa Posts: 799 Drives: 09 370z Rep Power: 17	I just don't get it. How much more would it really cost for nissan to install forged rods and pistons. At least as an option or in the nismo for crying out loud. If my car had the strength to handle FI and enjoy a longer life it would be a lot farther along mod wise than it is now. Wake up nissan. __________________ FI CBE, 20" forged specialties rims, swift springs, boston subs, kicker amp, focal components

10-27-2010, 02:30 AM	#3 (permalink)
induetime Base Member Join Date: Oct 2010 Location: Phoenix, AZ, USA Posts: 7 Drives: 1991, Nissan 300zxTT Rep Power: 15	I have been following this for a couple of weeks now, but I just registered to the forum. Thanks for sharing your build! I'm looking forward to seeing the progress & Sema pics.

10-27-2010, 04:46 PM	#12 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	New products for 370? Yay!

10-27-2010, 06:58 PM	#13 (permalink)
wishihadnav A True Z Fanatic Join Date: Nov 2009 Location: 90090 Posts: 1,851 Drives: Force Fed Nismo Rep Power: 184	^^this.

10-27-2010, 07:07 PM	#14 (permalink)
WarmAndSCSI A True Z Fanatic Join Date: May 2010 Location: SLC, UT Posts: 1,671 Drives: '08 Evo X \| '10 370Z Rep Power: 18	I wish people would leave this kind of discussion to actual engine builders. 1.) The rods in the VHR are forged. I can't think of a single import V6 engine that has come with cast connecting rods since 1993. 2.) Stock Japanese crankshafts are all forged now, with little need for upgrading unless you want to stroke the engine or are pushing some serious specific output. 3.) Many newer high-performance import engines come with forged pistons, but not of the strongest 2618 alloy and instead 4032 or similar alloys. This is due to the low silicon content of 2618 causing greater piston expansion during operation. A factory engine cannot be built to proper specs with emissions and reliability in mind with 2618 alloy pistons - the piston-to-cylinder wall clearance must be very high in comparison to stock hypereutectic or 4032 alloy pistons (0.003-0.005" vs. 0.0008-0.0012" or so). That said, the forged rods that come with the VHR may or may not be strong enough to handle a certain amount of torque output. As with the rod cap fasteners as far as being able to handle abuse at a certain power level or RPM. In addition, the stock pistons - even if 4032 forged (looks are deceiving, they may still look like cast pistons) - aren't very strong given the 11:1 CR. __________________ '10 PW 370Z 7AT - wife's car - Project Raspberry Cheesecake '08 Evo X - built motor+trans \| BB-X @ 32 psi \| CH3OH \| self-built+tuned - ??? WHP '01 Galant V6 - built motor \| GT35R \| self-built+tuned - 550+ WHP (retired) Last edited by WarmAndSCSI; 10-27-2010 at 07:15 PM.

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