Nissan 370Z Forum

Nissan 370Z Forum (http://www.the370z.com/)
-   Forced Induction (http://www.the370z.com/forced-induction/)
-   -   Forged Performance: GTM Twin Turbo VQ37VHR G37 (http://www.the370z.com/forced-induction/33-forged-performance-gtm-twin-turbo-vq37vhr-g37.html)

Sharif@Forged 12-24-2008 09:01 AM

Quote:

Originally Posted by 18rgcelica73 (Post 11733)
Are there going to be any smog legal turbos out for this engine, because this time I really want it all legal over here in Fresno.

Very unlikely. JWT tried everything, and was unsuccessful at getting CARB expemption, as was APS.

18rgcelica73 12-24-2008 10:31 PM

Wow that really sucks bad. I wish that more automotive aftermarket groups would lean more towards legality than high horse power for us that have to deal with smog.

xDIEGOx 12-25-2008 01:18 AM

There's always Vortech...

18rgcelica73 12-27-2008 12:01 AM

Yeah but the only thing that sucks is that turbos are way more efficient in making power. You don't have to lose power to make power with a turbo.

Crash 12-27-2008 12:39 AM

^^^ Technically, that's not true... When your foot is completely off the gas, you're motor is working harder because there is added back pressure. But I do agree with you. Your foot is on the gas 99% of the time you're driving.

LiquidZ 12-27-2008 05:32 PM

Quote:

Originally Posted by Crash (Post 12924)
^^^ Technically, that's not true... When your foot is completely off the gas, you're motor is working harder because there is added back pressure. But I do agree with you. Your foot is on the gas 99% of the time you're driving.

Don't forget the added drag of the supercharger.

Crash 12-27-2008 05:34 PM

^^^ As far as I know, we're talking about Turbos, not superchargers... Superchargers have one place only... DRAG RACING! :D

I'd LOVE to see a twin root-style blower setup on a 370z! That'd rock socks.

18rgcelica73 12-27-2008 09:09 PM

Well actually a properly set up motor and turbo combination would rule the strip. Not only can you make excellent torque down at like 1200 rpm but you also have the "free horsepower" rule of turbo charging. If it comes down to it and I really want boost then maybe I'll get the vortec, but my celica is faster than that by far anywho.

Crash 12-27-2008 09:24 PM

All of the track records are held by supercharged cars. :D Drag cars are usually alcohol+supercharged.

18rgcelica73 12-30-2008 01:31 AM

This is true but someone needs to pioneer out there in the drag community because if they used the same engine, fuel and compression ratio, I can almost see it now, a turbo car out performed a supercharged car. Someone just needs to get the motor set up with the properly sized turbos and boost levels and tune it really well and I bet we can see at least some higher trap speeds.

Crash 12-30-2008 02:26 AM

Quote:

Originally Posted by 18rgcelica73 (Post 13826)
This is true but someone need to pioneer out there in the drag community because if they used the same engine, fuel and compression ratio, I can almost see it no, a turbo car out performed a supercharged car. Someone just needs to get the motor set up with the properly sized turbos and boost levels and tune it really well and I bet we can see at least some higher trap speeds.

^^^^^^^^^^ AGREED!

http://www.youtube.com/watch?v=j89gCCuA57o

Sharif@Forged 12-31-2008 05:37 PM

Quote:

Originally Posted by Crash (Post 13258)
All of the track records are held by supercharged cars. :D Drag cars are usually alcohol+supercharged.

Depends on the class. BIG twin turbos, alcohol, and 2500-3000whp. :)

18rgcelica73 12-31-2008 08:06 PM

Yeah I love it.

Crash 12-31-2008 08:09 PM

Yeah, in the end, a turbo can easily push more power trim for trim. Superchargers spin around 50-80K RPM, but turbos spin between 100-200K Rpm.

18rgcelica73 12-31-2008 08:11 PM

http://www.youtube.com/watch?v=<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/QGPru4jaLt8&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/QGPru4jaLt8&hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>

I love this video TT grand national smoking the tires on the dyno so who really know's the amount of power this can really make.

Crash 12-31-2008 08:14 PM

^^^ Yeah, I saw that video. I'm pretty sure that car broke the dyno.

18rgcelica73 12-31-2008 08:16 PM

I saw this video about 2 years ago and still can't stop thinking about the thrill ride that thing must be.

Crash 12-31-2008 08:18 PM

Yeah, turbos are so fun... Especially if you don't spool and you let the motor catch the boost! :D I love when I put my foot down and half a second into acceleration the boost hits and you just get kicked back into the seat.

I'll be turboing the Z when I get it. I want 430-500 to the ground. :)

18rgcelica73 12-31-2008 08:35 PM

How do you get away with turboing a z car without them being smog legal? I am just curious cuz I really want to turbo mine. Well I am going to school to be a smog technician so I guess I could exploit myself a little.

shumby 12-31-2008 08:37 PM

it will not be smog legal.

Crash 12-31-2008 08:38 PM

It won't pass inspection even if it passes the sniffer.

There's not even a chance of getting a CARB cert here.

18rgcelica73 12-31-2008 08:45 PM

Well I am planning on moving to L.A. For me I love Southern California, central valley sucks arse. So hopefully next year I will be a thriving and flourishing smog technician in L.A. with a strong 370z even if I have to supercharge it.

Sharif@Forged 01-02-2009 10:26 AM

Quote:

Originally Posted by 18rgcelica73 (Post 14421)
How do you get away with turboing a z car without them being smog legal? I am just curious cuz I really want to turbo mine. Well I am going to school to be a smog technician so I guess I could exploit myself a little.

California is really cracking down, even moreso than we I used to live there several years ago. The good thing about CA, is that unless things have changed, a smog check is only required every X number of years on brand new cars. This may give you 3 years or so of smog check-less operation. :)

But to answer your question, none of the kits will likely ever gain CARB exemption. JWT and APS tried for years.

18rgcelica73 01-02-2009 05:52 PM

Not to be annoying but, why can't they pass?

Sharif@Forged 01-04-2009 09:31 PM

Quote:

Originally Posted by 18rgcelica73 (Post 15200)
Not to be annoying but, why can't they pass?

They will pass the typical federal emmisions checks. But in Califronia, they have a much more stringent test, that not only involves the sniffer, but also OBDII scan and worse...the dreaded visual inspection. Anything aftermarket, such as a turbo kit, headers or even an intake, has to have a CARB (California Air Resource Board) exemption number or certificate, in order for you to pass, even though you would pass with flying colors in the 49 other states.

ksfrogman 01-05-2009 01:37 AM

Out of curiosity, how does F.I. affect the gas mileage on the 350Z, G35 or 370Z/G37?

I know performance and gas mileage is an oxymoron, but coming from two Supras, including a modified '89 Supra Turbo, I can appreciate what boost can do for performance.

I had considered the new M3, but given its poor gas mileage (compared with the 335i), this is really discouraging me. Then again, having something like 14 mpg city, 20 mpg hwy is something I can live with for the new Z if this is what this kit would allow me with mild to moderate boost.

18rgcelica73 01-05-2009 01:55 AM

I really don't think it would get that bad. You do need a considerable amount more fuel when making more power especially with F.I., but I really don't think it would drop to those numbers you posted.

Sharif@Forged 01-06-2009 11:56 AM

Quote:

Originally Posted by ksfrogman (Post 16213)
Out of curiosity, how does F.I. affect the gas mileage on the 350Z, G35 or 370Z/G37?

I know performance and gas mileage is an oxymoron, but coming from two Supras, including a modified '89 Supra Turbo, I can appreciate what boost can do for performance.

I had considered the new M3, but given its poor gas mileage (compared with the 335i), this is really discouraging me. Then again, having something like 14 mpg city, 20 mpg hwy is something I can live with for the new Z if this is what this kit would allow me with mild to moderate boost.

At cruise, the MPG is the same as stock. With city or spirited driving, it's going to drop. The harder you drive, the quicker it drops. :)

18rgcelica73 01-07-2009 10:33 AM

Yeah basically the amount of boost you decide on with your right foot determines the fuel consumption you will whitness.

terrycs 01-09-2009 03:19 PM

Quote:

Originally Posted by ksfrogman (Post 16213)
Out of curiosity, how does F.I. affect the gas mileage on the 350Z, G35 or 370Z/G37?

I know performance and gas mileage is an oxymoron, but coming from two Supras, including a modified '89 Supra Turbo, I can appreciate what boost can do for performance.

I had considered the new M3, but given its poor gas mileage (compared with the 335i), this is really discouraging me. Then again, having something like 14 mpg city, 20 mpg hwy is something I can live with for the new Z if this is what this kit would allow me with mild to moderate boost.

My last two fill ups have been around 17-18 mpg ... normal commuting to/from work with occasional hwy pulls. Maybe 70% hwy / 30% street. It all depends on your right foot.

The Geek 01-09-2009 04:27 PM

How are these engines holding up with all that boost against stock pistons? I'm not askin to be a smarta**, but I'm coming from the Honda world (owned an s2k) where the max psi on a stock engine is around 7 or 8 (at the most), and never heard of a stock engine that could handle that much boost without shootin a piston throught the hood.

Do they already have forged pistons or something?

18rgcelica73 01-10-2009 12:16 PM

Well actually there have been many cases of the s2000's going much higher with the turbo's but with a great big FMIC and a really good tune.

Crash 01-11-2009 08:53 PM

Quote:

Originally Posted by Sharif@Forged (Post 16631)
At cruise, the MPG is the same as stock. With city or spirited driving, it's going to drop. The harder you drive, the quicker it drops. :)

Actually, in some cases you may get BETTER economy with turbos at cruising speeds because the engine isn't working as hard to breath. My turbo sol gets 40+mpg on the freeway.

The Geek 01-11-2009 10:05 PM

So what your saying is the 3.7 can handle 10-12psi safely every day as long as it has a proper tune then?

Crash 01-11-2009 10:10 PM

I think what he's saying is that you can have it set for that much PSI and drive it like that every day as long as you're not hitting that much boost every shift. If you're boost controller is limiting at 12 PSI, doesn't mean you're hitting that much every time you step on the gas.

Sharif@Forged 01-12-2009 11:10 AM

I like 10psi fo daily driving purpose which would be 500whp on most dynos. :) Time will tell, as to what level of sutained boost, the VQ37 will take for thousands of miles.

One dyno pull is one thing......20-30K miles of driving is another. :)

kdo2milger 02-01-2009 07:12 AM

Quote:

Originally Posted by Sharif@Forged (Post 19093)
I like 10psi fo daily driving purpose which would be 500whp on most dynos. :) Time will tell, as to what level of sutained boost, the VQ37 will take for thousands of miles.

One dyno pull is one thing......20-30K miles of driving is another. :)


What will a system like this typically cost on the 370z w/ a 10psi set up?

kdo2milger 02-01-2009 07:24 AM

i see the kit cost just under 8 grand...will this same kit fit the 370z, will it cost the same or less and what does installation run?

SAM@GTM 02-01-2009 12:31 PM

Quote:

Originally Posted by kdo2milger (Post 26362)
What will a system like this typically cost on the 370z w/ a 10psi set up?


GT Motorsports*::*FORCED INDUCTION*::*Turbo Kits

Sam

370z4Steve 02-01-2009 02:42 PM

Hi Sam..is the kit ready ?


All times are GMT -5. The time now is 07:14 AM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2