What performance mods on a budget?

The G-Series Tuning Forum is the place to discuss G35/G37 performance modifications and mechanical repair.
06BlackZ
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Hey guys I will be getting a 2009 G37s for my graduation present, and I was curious as what is the best way to achieve a significant amount more of performance and power for around 3000 dollars.Here is what I am thinking:ExhaustHeadersIntakeI am still trying to decide whether or not to go with the A/T trans or 6MT...How is the gear ratio on these cars from the factory? TuneDo people people stall converters in these cars?The 0-60 is rated at around 5.4 with a quarter of around 13.7, so would I be able to get in the 4 second range and be in the 12 second range for the quarter?I apologize if I seem ignorant in any of these questions. I don't know much about foreign performance. In the past I have been more accustomed to GM muscle cars with the LS series engines, so the 3.7 V6 is way out of my league.(for now at least)Thanks-
Modified by 06BlackZ at 4:21 PM 9/9/2009


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Poyzinous
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If it is auto then there is nowhere for a short throw shifter to be installed.Clutches are internal in the auto trans assembly and also, not something to consider. It seems you need to learn a little more about cars before you jump into one without knowing much about it. Stall converter is old terminology for the torque converter, which you shouldn't tamper with on any RE series transmission from nissan. Those few mods would not get you into the 12's unless you did a lot more work.

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I agree with Gabe. Not trying to be rude, but you need to learn more about cars before modifying a $40k car.

I don't suggest that you do this, but Nitrous would probably the only mod that you can do for under $3k that would get anywhere near those numbers.

Actually, if you want a sub 12 second car, I'd suggest getting something else. The G37 is more of a performance luxury car, it isn't an M3, it isn't an Evo, or any of those types of car even though some of the forum members try to bring it to that caliber.

06BlackZ
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I actually know a good deal about cars. People on my chevy forum still call them stall converters, but torque converter is what I was referencing. Also I would only install the minor bolt-ons myself. And if 12s is not a possibility then I am ok with that. I am not getting one of these to go super fast, but I have wanted one for some time, because I want luxury speed. I would have any major mods installed by a professional. Do people put cams in these engines?What if I were to rephrase my first post and simply ask what can I do to get the best performance results out of my G for under, let's say 4k this time, but not much more than that.

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Sentientbydesign
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I haven't seen much for the G37 in the form of a major power adder. Stillen has a cold air intake. I believe that there are a couple of exhaust systems out as well.

Just pulled up some dragtimes info. A G37 with 9 psi of boost pushing 537 hp and around 400 ft lbs of MEAN TQ is still only doing 12.5 in the quarter. Overweight luxury car!!!

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You just said it, luxury speed. If you wanted to get into the 12s you'd need serious work. The G, and most infinitis, are built for great handling, and highway speed. Because of the "wave" throttle application in nissan engines, 100% power isn't actually brought on from a dead stop. If one was able to reprogram this, with some forced induction, and I've seen it, you could dip as low as 9's in a non street legal car though. I've seen and heard of a few 600hp VQ powered vehicles with 10k worth of engine mods run high 11s. But if you stick to the basics, intake, exhaust, headers, some sort of inexpensive ecu tune, you could easily get into the 400hp range and run low 13s, but you would have most of your fun from 40mph onward. A great handling vehicle, thats comfy, luxurious, features nice technology, and is beautiful. I think Becki (User 08blackG37) who still has her american chevy muscle is very happy with her G37, and in these modern times the G37 is a unique car that many love dearly.Because of the VVEL system, I dont think Cams is something anyone has done yet. The system is already so awesome, that modifying aspects that benefit from the VVEL system will make your stock cams more valuable. But I'm sure eventually someone will make a set of cams what push the VVEL system to its respective limits, but I think it would be more beneficial to just reprogram the VVEL system to give more lift and duration. Its such a variable system that you don't need to modify it psysically, just electronically.

06BlackZ
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Poyzinous wrote:You just said it, luxury speed. If you wanted to get into the 12s you'd need serious work. The G, and most infinitis, are built for great handling, and highway speed. Because of the "wave" throttle application in nissan engines, 100% power isn't actually brought on from a dead stop. If one was able to reprogram this, with some forced induction, and I've seen it, you could dip as low as 9's in a non street legal car though. I've seen and heard of a few 600hp VQ powered vehicles with 10k worth of engine mods run high 11s. But if you stick to the basics, intake, exhaust, headers, some sort of inexpensive ecu tune, you could easily get into the 400hp range and run low 13s, but you would have most of your fun from 40mph onward. A great handling vehicle, thats comfy, luxurious, features nice technology, and is beautiful. I think Becki (User 08blackG37) who still has her american chevy muscle is very happy with her G37, and in these modern times the G37 is a unique car that many love dearly.Because of the VVEL system, I dont think Cams is something anyone has done yet. The system is already so awesome, that modifying aspects that benefit from the VVEL system will make your stock cams more valuable. But I'm sure eventually someone will make a set of cams what push the VVEL system to its respective limits, but I think it would be more beneficial to just reprogram the VVEL system to give more lift and duration. Its such a variable system that you don't need to modify it psysically, just electronically.
Thanks bro that is exactly what I wanted to hear. I think I will do just that. What about the 0-60 times of the M6 versus the Auto with paddle shifters? Mileage difference of a M6 to the Auto?Is there any tuners for these cars on this site?
Modified by 06BlackZ at 6:06 AM 8/26/2009

06BlackZ
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Anyone?

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Poyzinous
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I dont think anyone here pays much attention to the M6. I would recommend you go to car and driver, but they might convince you to buy a BMW.We're good with infiniti though!

06BlackZ
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I'm sorry I was referencing a Manual 6 haha. Stick shift definitely not a M6 BMW haha

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Poyzinous
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Fuel economy will be practically identical. Acceleration from what I know is also neck and neck.

06BlackZ
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Ok cool sounds like a plan Thanks for your helpAny other mods specific to the G37 that could help me achieve more performance? What is the minimum cost I could pay to get a decent turbo? Do they make single turbos or are all of them twin?

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If you are looking to modify a G, you might want to look at the G35. They are a little older, so there is much MUCH more aftermarket support for them. You could pick up a G35 for thousands less than a G37 and dump all your savings into modifications.

There are forced induction kits available for the G35, but I haven't heard of any for the G37 yet.
06BlackZ wrote:I actually know a good deal about cars.
06BlackZ wrote: so is a short throw shifter going to be beneficial for an auto?
really?

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PapaSmurf2k3 wrote:really?
My thoughts exactly.

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M6 and A4 is GM talk. You're on a Nissan/Infinity board now.

Leave the car stock for now and drive it until the warranty is out. Save your money and then tackle some real mods afterward when you've had some seat time in the car and know exactly what you want out of it.

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There is at least 1 TT setup available for the G37....Probably more by now.

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Desert Rat wrote:You're on a Nissan/Infinity board now.
Really? And this whole time I thought I was involved in an Infiniti forum...

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Desert Rat wrote:M6 and A4 is GM talk. You're on a Nissan/Infinity board now.

Leave the car stock for now and drive it until the warranty is out. Save your money and then tackle some real mods afterward when you've had some seat time in the car and know exactly what you want out of it.
That is because GMs have unlimited possibilities with M3s - M6s and I think even A2s - A6s.

This must mean that with unlimited possibilities that this a Nissan/GM board.

Perry

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I second the idea of getting an 05-06 G35 and putting twin turbos in. You can pick up a used G35 for 20's and put in 10-15 for the twins/exhaust and tuning. You'd still be less than the cost of a new G37.

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joe603 wrote:I second the idea of getting an 05-06 G35 and putting twin turbos in. You can pick up a used G35 for 20's and put in 10-15 for the twins/exhaust and tuning. You'd still be less than the cost of a new G37.
After looking over the SHO is there a similar setup for the 'G'?

Perry

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Poyzinous
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A twin turbo G running mid 12shttp://www.youtube.com/watch?v=Db6mlptNNlo

thiefgarrett
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Maybe off topic, but how much weight difference does the G37 coupe compared to a G35 coupe (03-06)..

If I could add, a "on a budget mod" is usually an intake system with maybe higher flowing cats and maybe higher flowing mufflers; Tune the ECU for "hopefully" expect higher airflow from a dead stop to improve low end, add fuel if needed (O2 inc. on that MAF Hz/rpm range and add timing.

FI are not on a budget mod. specially intercooled.

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Poyzinous wrote:A twin turbo G running mid 12shttp://www.youtube.com/watch?v=Db6mlptNNlo
Two turbos but not twins.

Perry

suby01
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06BlackZ wrote:Ok cool sounds like a plan Thanks for your helpAny other mods specific to the G37 that could help me achieve more performance? What is the minimum cost I could pay to get a decent turbo? Do they make single turbos or are all of them twin?
a turbo kit for your FUTURE car my friend is MSRP currently at $14k yes 14,000 dollars. that however will have you running with low to mid 12s. including all of the bold ons that you mentioned.

FYI

headers 1500-2000exhaust 1200intake 500high flow cats 500piggy back ecu 500-1000tune 500-1000=approximately 5000-6000 $$$ will = 50 whp. have you running low 13 to mid 13s. no where close to breaking 12 seconds

not including labor counting you will install everything yourself.

other than that ummmmmm good luck

thiefgarrett
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I'm a bit concerned reguarding the slow 1/4 mile ETs of these turbo Gs'. I'm saying this, due to other cars doing low 11s' (hint: FWD cars ) at best for the same kit they buy online plus their own homework.

Is the " stock" compression ratio of the VQ35 or 37 affecting this application? Do these sellers of turbo kits for the Gs' have their own G35s' or G37 with their own kit installed showing actual dyno and 1/4 ETs'?

I'm new to the G35/37 forum..

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Yes, the G has 10.3:1, 10.6:1, or 11:1 compression ratio (depending on motor series). Lots of other cars have 9.7 or less that allows more boost. If one were to change the internals of the VQ motor and lower compression into the low 9:1 range you could easily push 14psi and get into 11's. There are a few (very few actually) VQ motors that people build for street use with high boost engines that can run low 11s. In racecars and what not there are plenty of 10 second VQ powered cars. You cant put that much boost into a 3.7 with 11:1 compression. Dangerous.

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lomita
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Get yourself a tune on the ECU, the rest of the mods are A OK.

06BlackZ
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suby01 wrote:
a turbo kit for your FUTURE car my friend is MSRP currently at $14k yes 14,000 dollars. that however will have you running with low to mid 12s. including all of the bold ons that you mentioned.

FYI

headers 1500-2000exhaust 1200intake 500high flow cats 500piggy back ecu 500-1000tune 500-1000=approximately 5000-6000 $$$ will = 50 whp. have you running low 13 to mid 13s. no where close to breaking 12 seconds

not including labor counting you will install everything yourself.

other than that ummmmmm good luck
U said 1500-2000 for headers...Well here u go..http://www.importpartspro.com/st409ststexh1.htmlU said 1200 for exhaustwell here u go...http://www.octanemotorsports.c...ebaseWhat happened to 2 grand and 1200?? Where are u getting these prices?

suby01
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06BlackZ wrote:U said 1500-2000 for headers...Well here u go..http://www.importpartspro.com/st409ststexh1.htmlU said 1200 for exhaustwell here u go...http://www.octanemotorsports.c...ebaseWhat happened to 2 grand and 1200?? Where are u getting these prices?
LOL really? you would put a 4" honda exhaust style tips on a G35? esp from a company that went bankrupt of course its going to be a discounted price, for overstock of discontinued products. and as far as the headers if you would have some familiarity with the stillen headers they are the worst stillen product made for the G35. so your quick google search of cheap parts doesnt prove anything and or impress anyone.

most G drivers have a preference of style and power. but if you dont fall for that category. i have an answer for you.

i do want to apologize you did mention ON A BUDGET in your post.

so just completely disergard my knowledge of aftermarket parts for the G35/G37. and here you go i also quick e bayed some great results for you.

http://cgi.ebay.com/ebaymotors...ories

X's 2 = $50

and then

http://cgi.ebay.com/ebaymotors...ories

X's 2 = $50

http://cgi.ebay.com/ebaymotors...ories

X's 4 = $204

install at midas muffler about $100

there you have it my friend a full cat back exhaust for a whole $1000 dollars less then what my uneducated self quoted you with.

PS these are all BUY IT NOW deals no need to wait for the auction to end. saved yourself some time and $ there also.

good luck.

06BlackZ
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Did you honestly take the time to look that crap up? Wow get a life man. I just wanted some help, and just because I might sound like an idiot because I am not all that familiar with what I am talking about doesn't mean you have to bash me.


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