Nissan 370Z Forum

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-   -   GTM Performance Engineering VQ45VHR-Our Journey to The 1000 HP and Beyond (http://www.the370z.com/forced-induction/20809-gtm-performance-engineering-vq45vhr-our-journey-1000-hp-beyond.html)

CrownR426 09-12-2010 02:04 AM

I can already see bullit's z in all the magazines!
FTW!
Time to stalk this thread!

bullitt5897 09-12-2010 07:53 AM

Dude there are a few major pieces that are staying hush hush for the magazine and SEMA ;)

CrownR426 09-12-2010 02:59 PM

Quote:

Originally Posted by bullitt5897 (Post 717638)
Dude there are a few major pieces that are staying hush hush for the magazine and SEMA ;)

of course we'll get some sneak peeks! :tup:

bullitt5897 09-12-2010 03:28 PM

Maybe a Lil sneak peek but not as revealing as the past updates ;)

BOXER83 09-13-2010 06:27 AM

I can't wait to see the car.

1slow370 09-13-2010 06:47 AM

more importantly, is AK going to give you anything should a few of those magazine articles happen to mention a certain website ;)

bullitt5897 09-13-2010 10:41 AM

Quote:

Originally Posted by 1slow370 (Post 718665)
more importantly, is AK going to give you anything should a few of those magazine articles happen to mention a certain website ;)

Yeah no kidding:bowrofl: Hey AK! "wheres my money AK wheres my money!"

JB-370z 09-13-2010 10:15 PM

So what do you think about giving us a sneak peak of the GTR MANI. ????? Sounds like a good plan to me...:tup:

1slow370 09-14-2010 08:50 AM

I definitely need to see this thing the next time i'm in Georgia visiting my sister.

bullitt5897 09-14-2010 02:55 PM

let me know when you come into town and I will come pick you up haha!

#452-LE 09-14-2010 05:36 PM

... Going to GA this weekend in the Jeep to unwind a bit. Leaving Thurs. lunchtime-ish. Perhaps we will be towing the bikes down for a few Blood Mountain passes, but we will most definitely hit up the Papadeaux in Alpharetta!!! I accept donations in the form of gift certificates left at the hostess counter. Not to mention, I have a few lady friends at that place called "Tilted Kilt"...


BTW on topic.... Not 1000HP, but I will be shooting for the 500 mark.....soon.

1slow370 09-15-2010 06:22 AM

Quote:

Originally Posted by bullitt5897 (Post 720932)
let me know when you come into town and I will come pick you up haha!

Next time i come down I'll have to talk to you, I'm thinking there will be a major change in my car around next summer so we'll both have something to talk about at the bar. Maybe a trip to the track would be in order. Hopefully by next summer your car will have all the final touches done, the kinks worked out, every ounce of power it can make being put down to the wheels, and then finally get that stripper pole installed in the hatch.

bullitt5897 09-17-2010 10:48 AM

Anytime Slow! The car will hopefully be at the WERA Grand National Finals in the 2nd weekend in October @ Road Atlanta.

Next Summer this car is going to be Insanely sick! haha if I ever sold it it would have to be in the dupont registry or to like r2b2 motors down the street. lol

Mike

spearfish25 09-18-2010 11:16 AM

Hey bullitt,

How many actual miles have you driven in a 370Z? The sense I get is that your car gets worked on more than driven...you're an owner by proxy!

bullitt5897 09-18-2010 10:51 PM

Haha dude I only have 15-16k on the odometer lmao and I had the 2nd fully loaded white z on the east coast!!! The first one got sold out from under me *it was a transfer from another out of state dealer*

neverenough 09-19-2010 09:27 AM

Quote:

Originally Posted by JB-370z (Post 707402)
neverenough::icon14::gtfo2:

Do u have a problem with my post? I am only stating facts. As with any big build, bolting all the parts on is the easy part. Getting everything to work together and tuned is where the work comes in. I cant even count how many hours Sam has spent on the dyno with my car and its still not done. I wished the op the best of luck with his build and was merely pointing out that deadline or not there is a long way left to go. I find your post telling me to gtfo offensive and unnecessary .

1slow370 09-20-2010 08:43 AM

Hey Mike any possibility while you are blowing barriers to the wayside and dropping untold amounts of cash that you could have GTM throwi in a motec M800 series ecu With the advanced functions for traction control and boost over run(wasted spark), Electronic throttle support with the multi throttle box, dual wideband support, an external knock box, Downshift blipping, variable cam timing, and the servo motor control?

Long story short hook up two servo brains to sensors on the back of the vvel sub-assemblies, and run their positive and negative motor wires to the standard DC motors on the sub assemblies. Then wire the motec servo out to the 2 servo brains and you have full vvel control as well as a standalone ecu that could easily handle all engine functions on your motor reliably.

After having talked to uprev i feel they don't ever really want to bring vvel out so the motec with a servo conversion on each head is going to be the way to go. You would need to have the throttles do all the air metering and then have the servo drive on the motec referenced to the rpm for the angle of the vvel system. I'm gonna go make a post in the tuning section this week to give a better explanation or just shoot me a pm but i figured out how to do it.

Edit: so long as you can control the throttle, cam timing, fuel and spark, you could use any kind of box that can create the reference signal for the servo boxes running the vvel motors, the motec just does all of it in one package.

rednek01 09-20-2010 09:07 AM

Why wouldn't he just lock the VVEL out? You guys cant tune it, it adds more variables, and it isn't needed for high horsepower. I cant name a single mustang (yes we have variable valve timing too) with 600-800+ horsepower that doesn't have lockouts on the cams. Or at least limiters for that matter.

1slow370 09-20-2010 09:13 AM

VVel is more than timing our cars can control valve lift and no, no mustang in history has ever had that. It is the sole reason our torque curve looks like a flat line, and why we can run a bigger "cam" than a 350z yet idle smooth as glass at 600 rpm. We don't have intake cams

Edit: while working on dreamers car you notice those 2 dc motors sticking out the back of the heads?

also as i just posted it can be tuned you just need the bank

rednek01 09-20-2010 09:21 AM

Quote:

Originally Posted by 1slow370 (Post 728343)
VVel is more than timing our cars can control valve lift and no, no mustang in history has ever had that. It is the sole reason our torque curve looks like a flat line, and why we can run a bigger "cam" than a 350z yet idle smooth as glass at 600 rpm. We don't have intake cams

Edit: while working on dreamers car you notice those 2 dc motors sticking out the back of the heads?

also as i just posted it can be tuned you just need the bank

didnt realize it controlled valve lift as well! I stand corrected :owned:

1slow370 09-20-2010 09:32 AM

It's okay I'm harsh to mustang owners by habit, I don't think most people realize it controls lift, it actually does the engine throttling not the throttlebodies which is why it's so hard to tune. when you think traction control, and everything is all wrapped up in that code. This is why a tunning solution that can throttle the engine is important and the motec is the only one i know of that can provide launch ad traction control, operate ETB's, and control a servo motor all in one box.

Variable
Valve
event and
lift

Q8y_drifter 09-20-2010 10:06 AM

VHR with HR head...

1slow370 09-20-2010 10:51 AM

but the vhr head has bigger ports, better cooling, superior low end torque and idle, less hotspots and revised valve area's. Not to mention if you get rid of the vvel the engine can't be throttled without going standalone and/or cable throttles anyway

Q8y_drifter 09-20-2010 11:50 AM

If you're pushing for 1000whp then bigger ports, better torque curve, etc. don't matter IMO as that is really designed to push the limits of a factory stock N/A engine.

Better cooling? The HR has no oil overheating issues due to the lack of VVEL and in term of water cooling it's pretty much the same.

Is GTM going to use Osiris?

KaienZ34 09-20-2010 11:51 AM

Quote:

Originally Posted by 1slow370 (Post 728319)
Hey Mike any possibility while you are blowing barriers to the wayside and dropping untold amounts of cash that you could have GTM throwi in a motec M800 series ecu With the advanced functions for traction control and boost over run(wasted spark), Electronic throttle support with the multi throttle box, dual wideband support, an external knock box, Downshift blipping, variable cam timing, and the servo motor control?

Long story short hook up two servo brains to sensors on the back of the vvel sub-assemblies, and run their positive and negative motor wires to the standard DC motors on the sub assemblies. Then wire the motec servo out to the 2 servo brains and you have full vvel control as well as a standalone ecu that could easily handle all engine functions on your motor reliably.

After having talked to uprev i feel they don't ever really want to bring vvel out so the motec with a servo conversion on each head is going to be the way to go. You would need to have the throttles do all the air metering and then have the servo drive on the motec referenced to the rpm for the angle of the vvel system. I'm gonna go make a post in the tuning section this week to give a better explanation or just shoot me a pm but i figured out how to do it.

Edit: so long as you can control the throttle, cam timing, fuel and spark, you could use any kind of box that can create the reference signal for the servo boxes running the vvel motors, the motec just does all of it in one package.

:eek2::confused::confused::confused::happydance:

1slow370 09-20-2010 12:49 PM

Quote:

Originally Posted by KaienZ34 (Post 728545)
:eek2::confused::confused::confused::happydance:

It has yet to be implemented and a full on switch to motec has it's challenges, but it is a sound method. not to mention that a motec setup installed and tuned can cost around 10,000, and the new sensors, and servo drives would cost a few hundred more, but you would never have to worry about any mods that you couldn't tune for, you'd be the first to have tuneable vvel and launch control, and a motec can do anything and never fails.

bullitt5897 09-20-2010 02:45 PM

@ Slow: Sam and I had this conversation of whether to run a motec or not and after our discussions Sam convinced me that he had a better method than the Motec system. Since we are running the HKS F-con Vpro full standalone unit along with Race Logic Traction control system and a few other pieces to bring this system whole.


I am also an Aim Sports dealer and will most likely be installing a AIM Data Acquisition system in the car with possibly a Digital dash in my headliner. that way I can monitor everything from the motor to the suspension and be able to overlay it on to a 3d mapping/google earth overlay of the race tracks that I go to.

1slow370 09-21-2010 02:07 AM

yeah The only thing I'd say on the motec over what you have is the servo output for the vvel otherwise the fcon and the supporting boxes you have can do the rest of it. I was just mulling it over at 4a.m. running through the motec options and when i found the servo control it hit me. There is a way to tune VVEL right now, more accurately there has been ever since the car cam out. Can the FconV be hooked up to control the throttlebodies? If so i think i could still figure out a way to get you vvel lift control ability, it would just require a separate programmable micro controller box. If the FconV can handle the electronic throttlebodies or even a cable swap, this would be great as the price of an FconV would be much more affordable. I'm going to do some research and pile together a list of components.

Edit: as I am going to need to do this for personal reasons to get my twin screw to work anyway. Right now i kind of want to be able to just throw the damn stock ecu right the hell out of my car as there is going to be little to no support for it.

bullitt5897 09-21-2010 09:37 AM

Slow you might want to give Sam a call and discuss with him the options and maybe throw some ideas around. *hint hint* Sam knows wayyyy more than anyone else in the aftermarket about the VVEL system and may be able to shed some light on how he can tune the system... I cannot say for sure if he has cracked the system or not but from all the evidence that I have seen and heard ;) I would put money on Sam knowing how to tune VVEL :tup:

SAM@GTM 09-21-2010 07:29 PM

Here is Some teaser pics of the GTR manifold, this was a big undertaken to say the least.

Sam


RCZ 09-21-2010 08:00 PM

damn that looks good.

DIGItonium 09-21-2010 08:53 PM

OMG!!! :excited:

I'm going to sleep a bit easier tonight knowing that you guys are successful getting this thing to fit with the cover. How about the strut bar? If the stock one doesn't fit, have you considered some sort of work around or GTM strut bar upgrade?

Oh yea, so how does one change oil with this manifold on?

ROC1ROB 09-21-2010 08:54 PM

Very nice Sam!!!! :tiphat: Yet again, a leader!!!

SAM@GTM 09-22-2010 01:32 AM

Quote:

Originally Posted by DIGItonium (Post 731110)
OMG!!! :excited:

I'm going to sleep a bit easier tonight knowing that you guys are successful getting this thing to fit with the cover. How about the strut bar? If the stock one doesn't fit, have you considered some sort of work around or GTM strut bar upgrade?

Oh yea, so how does one change oil with this manifold on?

Yes we will offer an upgraded strut bar to work with the GTR manifold. As for oil changes, nothing spacial that you will have to do beside taking the plastic cover to get to the engine fill cap .

Sam

SE 09-22-2010 02:01 AM

Interesting...

Jamaica 09-22-2010 02:03 AM

I would like to get that. Looks good. Need to come by sam so u can see the car and I could pick up the manifold lol

shumby 09-22-2010 03:08 AM

will thios work for a SC G37?

SAM@GTM 09-22-2010 03:19 AM

Quote:

Originally Posted by shumby (Post 731350)
will thios work for a SC G37?

Yes it will .

Sam

shumby 09-22-2010 03:20 AM

I am so calling you wheni get homne. i got a ew things to run by ya. Thanks SAM great work as always.

88fc3sw/hx83 09-22-2010 04:06 AM

Awesome build! I have some OEM R35 parts (R35 OEM FMIC cores, R35 OEM Turbos) for sale if anyone's interested...PM me.:tup:


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