Quickywd01

iTrader: (16)

VQ gets good mpg's only a diesel would be worth it.

ChrisMan287

iTrader: (34)

Don't even start lol

aackshun

iTrader: (3)

Crusher103

iTrader: (10)

well you are homosexual so you dont count.

aackshun

iTrader: (3)

Crusher, the biggest homo on the org calling me homo?

tigersharkdude

iTrader: (20)

Prepare your anus

Timm80

I know it wouldn't improve performance, I was considering it strictly for fuel mileage. As I stated in one of my previous posts though, this was before I found out that the qg16 and vq30 weigh almost the exact same... I thought that the qg16 with its transmission would save around 150 lbs or more. This along with a lot of other weight I can shave off my car would have made a big difference... but then I found out both engines are very similar in weight, so I determined it wasn't worth it.

Timm80

alright alright lets all relax here... we have determined a 4 cylinder swap would officially be worthless... unless it were potentially a diesel, but lets not go there. I am going to seriously consider a vq35 swap though along with a 6 speed manual. Let us save this thread as an example of the rare but real stupidity that can occur on the org when someone begins to doubt the vq and its awesomeness... .

dwapenyi

iTrader: (3)

No Im saying get the car, not swap the motor.

DW

dwapenyi

iTrader: (3)

How about a 6-speed swap without the bigger motor? You get better acceleration AND better gas mileage.

DW

aackshun

iTrader: (3)

Blackwind

iTrader: (9)

the stars will have to align in perfect harmony for that drive do happen. especially from seattle

aackshun

iTrader: (3)

Well w/ 37mpg you should be able to do it on two tanks of gas... i'm just sayinnnnn

The6spdMax

iTrader: (23)

Why not just swap a 6spd first? VQ30 + 6spd = save gas. I thought you wanted to save gas?

Blackwind

iTrader: (9)

oh you on that GOOD crack aint ya?! ill make it one day, is it in texas this year?

Timm80

I do, which is why I would swap in the vq35 as well, but I'd also do it for the added power. The vq35 motor weighs almost the same as a vq30, yet it has 75 more hp, and was ment to move a maxima thats 500 pounds heavier then ours. Like I said in one of my last posts, I'd be willing to bet you'd get better fuel economy with a vq35 because your rpms will be much lower then with a vq30, meaning your engine isn't working nearly as hard, which results in less fuel consumption. I wouldn't do it strictly for the fuel economy, I'm just saying thats an added bonus, and I'd like a car with more power anyways, so thats why I'm considering doing it.

Timm80

Id' be willing to bet that with a vq35de and 6 speed trans swap, some weight reduction (just off the top of my head I can think of 150-200 pounds I can shave off my car), a little bit of aero work, and conservative driving, you could average 30 mpg, which is almost what a sentra averages.

OC_Nooby

iTrader: (11)

I GOT IT!!! Buy a motorcycle, slap a Nissan badge on it and enjoy the high MPG Honestly thought a 4 banger in a Maxima? Really buy a same year Altima. I'm sure you'll get it in the same price range if you where to sell the Maxima.

dwapenyi

iTrader: (3)

If you have a VQ30 with a 6-speed vs a VQ35 and a 6-speed, and both are going 80 mph, they are both turning over at the same rpms. Therefore, the VQ30, being smaller, will get better mpg.

Now, you want more power but your thread was about fuel economy, so which is it?

That being said, a VQ35 6-speed installed in the light 4th gen body = a monster

DW

DIAMONDS98SE

iTrader: (1)

probably the first time in history where fun project=reducing horsepower. this thread ftmfl

Timm80

Even if they were turning the same RPM at 80 mph in 6th gear, the vq30 is a smaller engine with a lot less power and a lot less torque, which means it is going to have to work harder, which means it will use more fuel. Smaller engine does not always equal better fuel economy. I should have taken that into account before I titled this thread. I guess the better title would have been "better fuel economy with a 4 banger or a vq35?", because it depends on of factors with the car, engine, transmission, aero, etc.

Ok... I want better fuel economy. Thats my main goal... BUT... if I can get better fuel economy, AND, gain some more power, that would be best. Thats why I'm considering a vq35 swap with a 6 speed manual, because it will result in better fuel economy, and a nice power boost.

aackshun

iTrader: (3)

@Diamond98SE, Sure stock for stock, but then you factor in weight loss, the aftermarket support, the ease of modding.... I can go on for days why I want to do a 4 banger 4th gen.....

Also the motor I planned on swapping made the same HP as a VQ30DE and a little bit less TQ and weighs 50lbs less.

But like I stated earlier... NONE are for fuel economy.

Timm80

Your the guy who swapped a vq35de and a 6 speed manual into your maxima right? I know your not the kind of guy who cares about fuel economy, but for my sake, have you noticed any better fuel economy in your car at all?

Nealoc187

iTrader: (23)

whichever motor has a better VE at the chosen cruising RPM is the motor that would get better gas mileage with all other things being equal (which is rarely the case, but in this case it could be).

aackshun

iTrader: (3)

No VQ35 yet.

I am the kind of guy to care about fuel eco, I drive 60+ miles a day in the city, so every day I'm not driving my red maxima I'm hurting, it's making me itching to just 6mt swap the white car so I can immediately see $$$$ in my pocket

My fuel economy has been affected by lightening things up, and giving the car better gearing via the 6mt w/ the 4.1 final drive and increasing the VE of the motor (intake and exhaust modifications), simple as that.

You want MPG? Copy my moves, simple as that

Timm80

OK... lol. And with that, its time this thread was killed. I apologize to everyone involved in this mess. It was a mistake from the beginning lol.

10psigti

vq25de from a jdm engine dealer and call it day

ShocknAwe

iTrader: (3)

4 cylinder you say?

Timm80

lol

ShocknAwe

iTrader: (3)

I decent gif I must admit lol

max1008

I would turbo, tune and stay out of the pedal. I know know many people that say they have gotten anywhere from 8-10 more mpg doing this.

aackshun

iTrader: (3)

Turbo $ > 6mt $

Simple as that.

Also still wrong, S/C sure I can see that as long as you stay out of the higher revs.

but still S/C $ > 6MT $

Blackwind

iTrader: (9)

DEAD!!!

cashoit

I have driven a 1997 Max, 1997 Sentra, and 1997 altima.

If you dont want the power of the max, then get the altima. Its a nice combination of power, mpgs, size, sportiness, and reliability.

Sentra's are unrelible and too small IMO.


PLEASE, PLEASE do not attempt to put a 4cyl in a 1997 max. My god, i cant think of a bigger waste of time, effort, or money than that

kzoosho

iTrader: (16)

Not correct. A turbo makes the motor more efficient and can boost mpg. I was getting 29mpg in my turbo'd 4th gen and got 40 mpg in my 432whp sentra.

Timm80

I could definitely see that, especially if was a twin turbo kit using two small blowers as opposed to one large one and if you had a high quality tuning program. Recommendations for tuning programs and/or turbo kits?

skweaky

iTrader: (3)

Do what you want, but a 90's civic hatch or any year TDI jetta would be a better way to go. The higher cost of the Jetta would be offset by the 50+ mpg. And they are almost free to own with 10k oil changes and nothing that really ever breaks. TDI VW's have been getting higher mileage than hybrids and (yes i'm saying it) electrics. TDI gets better fuel mileage than electric cars. Look it up.

Civic are cheap to buy, cheap to own, and if you get a wild hair, you can swap in about 100 different motors and cheap turbo kits. Check craigslist. One sold here for $800 and a buddy of mine has been driving it to work for 3 months now. 50-60mpg.

bigd480

Take a jar, label it "4th gen engine swap fund", put whatever money you want to put into this project in the jar, re-label it "4th gen extra gas fund" and come out ahead...

Seriously, my 200k mile max still gets 27mpg on hwy being driven aggressively, at least first make sure yours is getting the best mpg it can and call it a day.

Comparing cars with 25mpg vs 35mpg average, the annual savings by driving the higher-MPG car are $846 based on a gas price of $3.70 per gallon and driving 20,000 miles per year. http://www.carmax.com/enus/mpg-savin...r/default.html

Also, if it's for your job, it should be tax-deductible or you should be getting some sort of stipend for all the driving from your employer.

aackshun

iTrader: (3)

You're alive?

I guess I could see it, I rarely do see cars w/ turbos getting better mpg but i guess it's another one of those human error things.

So this only boost (hahahaha pun intended) my theory of a 4 banger 4th gen.... Time to acquire me an altima motor....

kzoosho

iTrader: (16)

Yes I'm alive. Still around too