Like i said in another thread, the heads aren't the bottleneck if you want to make good n/a power.

 

You have to really look at how the VQ30 is designed and then factor in all the parts of the equation. Like nismology said, the heads don't create the bottleneck. I'm not saying I have it figured out, but I do know the tolerances in the VQ are rather good and you don't get the same gains with a port and polish that you would otherwise with some other platforms. To give you some reference, I did a ground up build on a GM 151ci inline 4 cylinder engine years ago and got some great gains by doing some pretty basic engine work: gasket matched all the ports, did a basic valve job, new pistons and rings, a higher lift cam, larger carb, larger exhaust, and then ran a hotter ignition with an electric fuel pump. The car screamed and got unbelievable gas mileage. That platform was not built with great tolerances so there was more room for improvement.

 

Not that I am agreeing with this dude, but who here has seen actual hard numbers, either flow numbers, dyno numbers, or track numbers, comparing massaged heads to stock heads (for either 3.0 or 3.5). I'm not talking about different cars with different setups either, I'm talking about the same car with before and after results... different cars with different setups don't interest me unless they were run on the same dyno or in the same or similar track conditions with drivers that it can be assured are both competent.

 

Now there's a good question. I'd think with all the years the .org has been here and all the thousands of tuned maximas running around somebody would have the answer to this. If not, we suck.

Fred

 

Sorry this is OT, but congrats in making the SCC magazine article this month!

 

Thank you! I'm happy to have gotten in one. Always kind of a dream of mine!

Fred

 

I read that article as well a few weeks ago and recognized the name from on here. Thought that was neat.

 

One of you 4th gen maxima guys with the 3.5 swap should really contact them about an article. There's a guy who's always looking for new cool swaps to write articles about, he's a freelancer who writes these articles and takes most of the photos.

I think you'd have a decent shot at an article since the VQ is so hot right now.

Fred

 

my350z.com is full of good info concerning before and after port and polished heads, n/a and boosted. I will say it again, on an n/a 3.5, the heads are NOT the bottleneck.

 

Okay..Sorry i was looking at it in the way i do when i modify a honda. If you built a head on a H22 motor swap it into an eg you will run low 12's high 11's all day.

I forget that the maxima is much more than a honda... Sorry to all of you for my mistake.
Now I ask what can i do to get that extra N/A power i want?? Besides just bolt-ons.

 

Intake manifold + timing advance...

 

will do...I saw your article, good stuff.

 

I would never endorse a 3.5 swap article in a magazine. I don't know why people are so eager to put the maxima "out there". Who cares if other people don't know what mods are possible and/or what the maxima is capable of? Underestimation works in our favor. The only positive i see is maybe some more manufacturers taking notice but then again, most maxima owners are all talk when it comes to new parts being developed. They don't put the $$ down when it's time to.


My $.10

 

underestimation is there no matter what. My car's been called an altima, a 4cylinder, and slow LOTS of times before. That's ignorance. it would be cool if some people started getting interested in Maximas that weren't before. I'm definitely gonna hit them up, a little to fuel my own ego (having your car in a mag article is pretty cool), and also to rep the maxima community. I doubt anything at all will happen, but if it does, all that can happen is positive.

 

I love to see my old Maxima in the Mags, but alot of the "tuner" mags are geared towards more popular "tuning" cars (240SX, EVO, STI, etc).. People are going to question a sport compact article about a Maxima.

Too bad I don't have any "before" or "during" pics like Fred did..

 

If they can do article on an Accord, they can do it on a Maxima.

good thing I took lots of pics in the process.

 

Sorry, you're FOS. An H22 swapped eg civic doesn't do high 11's or low 12's NA. It's more like 13's and 14's depending on mods and tires.

You can't really even compare it to a maxima. It's a light small economy car that weighs just over a ton. The maxima weighs 800-900lbs more.

It's not really even worth it to seriously mod a FWD car anyways. Not only does FWD suck for serious power, but you have to spend a lot more money to get a smaller 4 or V6 to get serious power. If you want to get serious about power, get an F-body, fox body mustang, Z32, S13/S14, or a supra.

 

My brother is trying to talk me into buying a fox body mustang because you can build a 10 sec. street car for half the money it would take to get one of our cars to go 13 sec.

 

I would love to do a RWD 4th gen maxima with the VQ40 and its 6-speed

 

What's the fun in that? You'd probably just follow a formula that's been around since the 80's... :yawn:

 

That's what I told him. He's was trying to con me into a strip car for the weekend and a beater for a daily. My response was that I'd rather build something extremely fun to drive as a daily, which has some a$$ to it and not the typical. Huh, sounds like a Maxima to me.

 

waster of thread.
and dont bash on the hood scoop. they dont make the maxima look bad. people just dont have taste. haha

 

While the fox body is obviously far cheaper to make fast, that comparison is not true. I'm not sure if you are being serious or just exaggerating to make a point, but I put a 4th gen in the 13s for a total power mod investment of, lets see...

$50 used JWT intake
$200 used ypipe
$500 MEVI
$275 pair of slicks.

You could bolt those slicks onto a 2k2/2k3 6spd with a driver and have it in the 13s for just the cost of the tires.

 

[QUOTE=Weimar Ben]Sorry, you're FOS. An H22 swapped eg civic doesn't do high 11's or low 12's NA. It's more like 13's and 14's depending on mods and tires.

You can't really even compare it to a maxima. It's a light small economy car that weighs just over a ton. The maxima weighs 800-900lbs more.

It's not really even worth it to seriously mod a FWD car anyways. Not only does FWD suck for serious power, but you have to spend a lot more money to get a smaller 4 or V6 to get serious power. If you want to get serious about power, get an F-body, fox body mustang, Z32, S13/S14, or a supra.[/QUOTE


Sorry but i have a friend that runs high 10's in an all motor eg....if you would like proof go to IDRC september 3rd and i'll show you this car. True there is no comparison, but i did come from a honda background. I forget that the maxima doesn't have a big market. Also I aint trying to go for extreme power, just want an all around good performer. True RWD is the way to go but since i dont have money right now to start a project i will just stick to modding what i have.

 

[/QUOTE]


dont have money right now to start a project i will just stick to modding what i have.[/QUOTE]

thats everybody here on the org

 

What you mean by IM A ported Maxima one or an APS 350Z intake plenum??

 

[QUOTE=BUSi87]you know, i'm interested in seeing your timeslips from irwindale...and if your friend ran there too, i'm also interested in seeing them...and if possible, get a copy of the timeslip when you goto IDRC...

in the meantime, you're just

 

[QUOTE=steven88]dude arent you supposed to be banned? lol. get out of here.

 

[QUOTE=steven88]i would believe it. if you could get a honda (and you can) down at around 2100 pounds it would take about 250 BHP to break into the 11s, our cars were stock with more than that. (a 5.5 gen at least)

 

go ahead, get a mustang in the 10's for 500 bucks.

 

give or take a few dollars...

 

You're not getting into the high 10's NA with a eg and an H22. You're going to need in excess of 330whp assuming a 2100lb race weight.

You're going to need this to make it into the high 10's NA with an H22 swapped eg



Ohh, and I almost forgot you're going to need 110 octane with 16:1 comp ratio pistons. There's a VQ30 race engine that gets like 400hp. But it's hella expensive and not suitable for street use. Apples and oranges people.

If you want your 5.5 gen to be a quick car, get some headers, ecu tune, jwt cams, and some drags. Easy low 13's. Maybe high 12's.

 

i agree theres a thread on my 350z about the release of cosworth vq 35 heads they have flow charts of stock and cosworths they say after around a 270 cam is installed the heads cant flow enough i think this may be the vq 35 na problem around 280 whp.

what has me thinking is that the vq 30 isnt as good as the 3.5 so draw your own conclusions

 

The cost to speed comparison was an exaggeration on my part to add to the conversation. There is definitely a difference in making a fox body Mustang run 10’s all day long versus our cars. It is fairly simple with the 302, not so simple with the VQ. Don’t get me wrong, I’m not a ford fan and will always be true to the VQ.