GT Motorsports: G37S VHRTT, GTM HR Turbo Kit, FCon VPro, Stock Block Testing
So what does the FCON manage then? Just ignition timing and air/fuel? The reason I ask is because I am not very familiar with it, but I have seen a number of people using the AEM EMS and once you use that, you lose just about every creature comfort in the world as AEM assumes that if you are going to replace the OEM ECU, then you're clearly making a full time track car. I would assume based upon this that either the FCon Pro is in used in addition to the OEM ECU or HKS cracked the Infiniti ECU and can manage all the stock features. The latter doesn't seem realistic to me, so I would assume that the FCon is clearly only managing the engine which would make it seem like it's acting akin to a piggy back.
A couple points that need to be addressed as well.
1. Passing smog is going to be just about impossible in California with this kit on, unfortunately. Luckily, you have many years before you have to smog it here. But, as long as you don't have to pop your hood if a cop pulls you over, you'll be okay, or else it's most likely going to be a visit with the state ref. With that exhaust, you're screaming for police attention. So, let's say someone wanted to run the stock exhaust system, any guess on how much lower whp numbers are going to be?
2. Gas mileage is going to go down moreso with this kit. You guys didn't increase injector size and toss out the stock fuel pump for fun, so it has to be assumed that MPG is going to get worse. Any theoretical numbers on this?
3. The numbers you guys achieved, I assume, is on 91 octane. On higher octane gas, such as 92, 93, 100 and C16 or with water/meth injection, you can obviously run more timing, less fuel - so would you guys happen to have any whp numbers with fuel other than 91 if that is in fact what you used to achieve those numbers?
4. The turbos you guys are running are not big and I assume it's because you want to have smooth boost characteristics (eg: not running a 42R on a 2 liter which equals massive lag and a true test of patience). So this begs the question - when does peak boost hit? Is there any boost taper/climbing or are you running 8psi flat until redline? Run into any surging issues with this turbo?
5. Are these numbers with or without cats?
And I'll skip the question about weight distribution being altered due to the heavier front end due to the turbo kit and lighter rear due to the swapped exhaust system.
Thanks in advance and I hope I'm not pestering you guys with too many questions.
A couple points that need to be addressed as well.
1. Passing smog is going to be just about impossible in California with this kit on, unfortunately. Luckily, you have many years before you have to smog it here. But, as long as you don't have to pop your hood if a cop pulls you over, you'll be okay, or else it's most likely going to be a visit with the state ref. With that exhaust, you're screaming for police attention. So, let's say someone wanted to run the stock exhaust system, any guess on how much lower whp numbers are going to be?
2. Gas mileage is going to go down moreso with this kit. You guys didn't increase injector size and toss out the stock fuel pump for fun, so it has to be assumed that MPG is going to get worse. Any theoretical numbers on this?
3. The numbers you guys achieved, I assume, is on 91 octane. On higher octane gas, such as 92, 93, 100 and C16 or with water/meth injection, you can obviously run more timing, less fuel - so would you guys happen to have any whp numbers with fuel other than 91 if that is in fact what you used to achieve those numbers?
4. The turbos you guys are running are not big and I assume it's because you want to have smooth boost characteristics (eg: not running a 42R on a 2 liter which equals massive lag and a true test of patience). So this begs the question - when does peak boost hit? Is there any boost taper/climbing or are you running 8psi flat until redline? Run into any surging issues with this turbo?
5. Are these numbers with or without cats?
And I'll skip the question about weight distribution being altered due to the heavier front end due to the turbo kit and lighter rear due to the swapped exhaust system.
Thanks in advance and I hope I'm not pestering you guys with too many questions.
SAM
GT MOTORSPORTS
Looks great, Sam! Does this use the same piping and hardware as your 07-up 350Z kit? http://www.my350z.com/forum/showthre...=369581&page=5 . The design looks alot cleaner/better than what I've seen from other companies working on the HR engines. Keep up the great work!
![]\[ /-\ ]\/['s Avatar](data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 50 50'><circle class='avatar-circle-default' fill='%23de8a71' cx='25px' cy='25px' r='20px'></circle><text class='avatar-text-default' x='49%' y='53%' fill='white' text-anchor='middle' alignment-baseline='middle'>]</text></svg>)
kit looks awesome
Registered User
Joined: May 2008
Posts: 448
Likes: 1
From: Northern Virginia
Yes, you'll need EMS and fuel system upgrade. Check out the details on their website. There are other items that they offer for the kit.
Last edited by terrycs; Jul 15, 2008 at 01:18 AM.
