kenji

iTrader: (1)

I have always felt that racing all motor gives me some kind of pleasure.
Anyone out there feel the same way? I want to build my motor strong with more than just bolt ons, has anyone done any major engine work?
I know some gearheads have to be out there, the N/A bragging rights start here!

stephenlc

iTrader: (1)

There is just not enough aftermarket support for us to do something like that. If you are going to do an all motor car it is probally not going to be street driven. Also parts for our car are going to have to be custom made. I recently in an all motor CRX that does 11's in the quarter.

Nealoc187

iTrader: (23)

I'm sure there's some out there somewhere that have built an all motor maxima. To my knowledge on this board the only people who have done internal/valvetrain work on their cars are F/I people.

I nominate you to be the first to do it so I know what to expect if I decide to go that route

Keith97gxe

iTrader: (1)

nealoc, you ran a 13.6 without f/i Thats pretty fast. What else do you have done to your engine?

BadKarma99-4spd

iTrader: (4)

i agree, also non n/a cars seem to have their fair share of reliability problems.

i also cant justify spending upwards of 3k for f/i if im not going to be the fastest sob ever(id die if i spent that money and then got stomped on)

i know nos is much cheaper, but no offense i dont really consider it "legitamant" power. MY OPINION.

MORE POWER TO YOU IF YOU LIKE IT

2naboy

iTrader: (1)

Port polish heads with 5 angle valve job(actually did this but dont have it installed yet), port polish intake manifold(did this too), jwt cams and higher compression pistons( wish I had enough money for this).

ivelweyz

First someone could try to port match our heads and see what the gains are. This would be the easiest as almost anyone can do it. Just draw an outline of the gaskest on the heads and go to work. You can't go crazy of course...

Nismo87SE

A hot all motor setup would be a 11.0cr VQ35DE, with cams, valve springs, Ti retainers, 350Z intake manifold, headers, headwork, UDP, full exhaust. This motor should make around 290-330whp depending on camshaft grind and tuning while reving to a 7000-7500rpm easy.

stephenlc

iTrader: (1)

They have gotten all motor 300 hp Z cars in Japan with all the bolt ons not even internal work.

Stephen Max

iTrader: (59)

Dang. So no internal work means about 60-80 hp just from intake, exhaust, flywheel and udp? And extended redline too, I guess.

Torgus

iTrader: (10)

http://maxima.cardomain.com/member_p...=182969&page=7

you mean like this guy minus the FI? i never did hear the results of that engine...so hot tho....

Torgus

iTrader: (10)

http://maxima.cardomain.com/member_p...=182969&page=7

like this?
-FI?
i want that engine so bad..so sexy..so much power.

Jeff92se

iTrader: (82)

And pass emissions? And have some decent lowend power?? Good luck

driver824

two words...Fu*King sick!!!!!

Nealoc187

iTrader: (23)

That's my buddy Ferhans car. Hes here on the org under Furbiss112. He's not done with it last contact I had with him which was like 3 weeks ago.

I only have done what's listed in my sig. Intake, Y pipe catback MEVI and ECU.

EDIT: Correction, at the time I ran the 13.6s I didn't have the catback I was still using stock exhaust. That was back on April 5th when I ran 13.6s.

Dave B

Exactly.

Digging into the VQ to make it stronger is pointless. The motor is very stout and can take serious power so reliability is not an issue. Porting the heads, port matching the intake manifold, etc are good things, but don't expect anymore than 10fwhp at best. Nissan did a pretty good job with reducing restriction in the this.

This would be as far I'd go with a street driven NA Maxima:

1) MEVI, slight loss in torque, but huge gains above 5500rpms ($600)
2) JWT ECU with 7500rpm rev-limiter ($550), gains in power everywhere
3) JWT valve springs and install ($800?), to compensate for the high rev limiter
4) Cattman headers ($750). It appears that these headers increase midrange power a bit better than just a y-pipe.
5) UDP ($240). Simple mod, gives 3-5fwhp/tq
6) Intake (whatever you want, $90-250), 3-7fwhp
7) Exhaust (whatever you want and how loud you're willing to go, $200-400) 3-7fwhp
8) Extrude hone the intake manifold ($500). Peak power isn't really increased,. but dyno data suggest 7-9fwhp in the midrange which is always a good thing

The big "if" mod:

1) JWT cams ($1500 for cams and install). The word is these cams gain 15+fwhp, BUT at the expense of lowend power. If the drop in lowend power is significant from 4000-5000rpms, this mod may not make the Maxima quicker in the 1/4 mile.

With items 1-8, I'd think ~200-205fwhp and 195-200fwtq is attainable. On slicks this Maxima could possibly grab 13.5-13.6s@101-103mph. On street tires, 13.8-14.0@101+mph. If the cams don't kill lowend too much, you might be able to squeeze out 13.3-13.4@104mph.

Probably the ultimate setup would be doing what Mardigras is doing by swapping the 3.0 VQ heads, valvetrain, etc onto the 3.5 VQ block. The increase in power would be substainal and I'd think 12s could be possible with a gutted Maxima running slicks and skinnies in the back. The extra torque means everything in the 1/4 mile. The only issue is cost. Who is willing to spend $1000-1500 on a 3.5 VQ and then invest is the swap over and all the headaches that come with the swap. It's not easy and from I've read, not everything is a direct swap or bolt-on. Some fabbing is needed.



Dave

Nealoc187

iTrader: (23)

1234

Dave B

Well your car isn't ordinary and you're not an ordinary driver. Anything you drive is quick


Dave

SXN

yea you can get bragging rights and stuff...and its nice to have a beefy block with some big valves, etc... but if u can make more power easier with FI (possibly cheaper than building a race engine) why not?

Ninos_Maxima

iTrader: (5)

I was planning on doing Furhans setup with my Max, but with Low Compresion rings instead, plus add a mevi, and a good exhuast system, and with a Turbo with a lot of psi, and u got your self the fastest Maxima Ever!!!

Mmmaxx

Not to go off topic here, but that car on page 8 is friggin awsome looking!

BEJAY1

iTrader: (19)

I'm dynoing within a few weeks and we'll see if you're being too conservative...

Dave B

I'll be curious to see it too. I looked at you Car Domain site and I found it a bit strange that your 4th gen is putting out significantly more torque than any other NA 4th gen yet your 1/4 mile isn't terribly strong (14.8@92-93mph). Granted you were running 10% shorter than stock tires, but your car still should have been significantly quicker and much faster in the 1/4 mile with all that power. I would have thought with all that extra torque (15fwtq more than any other NA 4th gen), you'd be running easy 14.4s especially at Bryon. I'd think doing some 1/4 mile passes on stock height tires would reveal the gains better than the dyno. The ET doesn't have to be good either because we can figure out how powerful your car is from the trap speed which I'd guess should be around 97-98mph with the power you're making right now.


Dave

BEJAY1

iTrader: (19)

If I can make it to Byron this weekend I'll let Neal take a run and see if it's maybe me that's the problem

I30tMikeD

iTrader: (8)

I let him drive my car once when I couldn't break into the 14's............let's just say I was not the 1st person to run 14's in my car

He pulled a 14.9 then I pulled a 14.8. I think him sitting in my car gave it specail powers

SXN

magical car eh?...or a magic butt? hmmm

sweetdaddy

Hey Nealoc 187,

Read the mods in your sig, but you make no mention of traction aiding diff like Quife or VLSD. How do you get the power to the ground?

Thanks,
SD

Maximum96

iTrader: (2)

What exactly is the Extrude hone the intake manifold??

SXN

for drag launches, it takes skill and practice. For around town its simply going easy...

Dave B

He used slicks to get his 13.6. I believe he's done 13.9 on street tires. Contrary to popular belief, a limited slip differential won't do anything for the 1/4 mile. I really doubt a helical limited slip will do much good either. Seeing that our cars are heavier FWD platforms, much of the weight is over the tires and it's pretty rare to see a Maxima "peg-leg" (one wheel spin) off the line. HLSD and VLSD are more for turning traction, not straightline. Look at the 60' times for the HLSD Maxima's vs the non-LSD Maximas. There's no difference.


Dave

I30tMikeD

iTrader: (8)

yhea, I don't see my VLSD doing anything for my launch. A little bit in turns but that is it.

Nealoc187

iTrader: (23)

Dave's right on the ball. Slicks for the 13.62, street tires (my heavy set at that, worn out all seasons and some heavy wheels, 41lbs total weight) for the 13.98. LSD of any sort, whether it be viscous, helical, clutch type or gear type, won't do jack in the 1/4 mile (for our cars)unless one of your tires is wet or something.

kenji

iTrader: (1)

Bump

Holy cow, I had no idea that anyone had responded to this post.. I knew you guys were out there.
Now that I have your attention, I'll tell you why I want to build the vq30de.

I've always been into building motors, especially imports that were quick at most beforehand. I'm somewhat new to this, and I'll be the first to admit, but I was wondering if anyone out there had built their motor. I know that 90% of major internals would have to be custom fabbed for a max, as to be expected. I was curious to see what kind of gains, if any - that someone has seen from doing this.. Does anyone know if there is improvement i/e to be seen from lightening/knife edging the crank for instance. I want to prove people wrong that hondas can be built better n/a than nissans without f/i, and most of all see for myself what our cars can really do. If a 4 banger can rev 8800, with oem internals, I would hope a built vq30de could rev to at least 77k on custom ones.

Also I know that weight is the most major factor of all, and I am waiting on a copy of Modified Magazine, which features a maxima with extensive weight reduction -thx speedemn. I believe that we can see some serious times N/A, and show these LSVTEC/TypeR/CRVTEC etc etc etc guys what's up.

Ninos_Maxima

iTrader: (5)

The only reason they rev so high is becuase they have Hig Compresion already, B-Series Motors are not ment to do turbo unless you spend a lot of money on them, SuperCHarger will be the best way to go with a Civic. Unless you got the all mighty H22A.
O Kenji The only way they can possibly get these low runs is if they spend lots of money modding there motor

kenji

iTrader: (1)

really? silly me I thought most mechanics would do this stuff for free..

Jeff92se

iTrader: (82)

WTF?!?!!?!

nismology

iTrader: (8)

Nah. Nissan Performance Mag's project 350Z puts out about 263 WHP with intake, exhaust, pulleys, cams, and flywheel. With a baseline of 236 WHP I'm assuming 18% drivetrain loss that's about 320 to the flywheel. Still dam good N/A gains without raising compression or an ECU upgrade.

kenji

iTrader: (1)

Not sure what he was talking about, although he did mention Japan. The Jspec Z's are much different there than the ones here, and so are all the other cars in Japan.