I was wondering if anyone knew of any internal engine mods. like forged pistons, connecting rods, cams, gears, crankshafts or anything else? i want to know anything about them so let me know. thanks

 

All custom work, sorry guy....

 

How much would It cost to have this custom work done to our engines?

 

Talk to Uncle Max... He has had internal work done.

Are you appraoching that much power that you really need it?

SuDZ

 

No, I just always wanted to know.

 

i think Uncle Max is running stock internals.

i built my motor last year. It took a LONG time getting parts custom made from various manufacters, its also expensive. what are you doing that you need a built motor? whatever you needs and wants determines what you might want to do on the motor.

 

i thought arias made forged pistons for our cars? im going to turbo my car in the near future. i want to run at least 15 psi. how do u like ur turbo turbomax? how much psi are u runnin right now? what turbo did u use and what other accesories?

 

15psi eh? well id say you should build your motor. i had my pistons custom made from Arais.

im running a t3/t04e turbo on a built motor. alot of other accessories but i dont feel like typing them all out rite now.

 

Whether one chooses to go with forced induction or not, isn't it a good idea to beef up the internals first, before going any engine mods (ie beef up internals before going to forced induction)? That would ensure a longer and healthier engine life I'd assume.

Does Arias only make forged pistons? What did that run you guys?

 

I've been hearing numbers of $4k-$5k for a basic performance rebuild. I have no idea exactly what it includes. IIRC, I30krab paid around $4k for his rebuild with DET pistons and piston oil squirters, but I don't know what else he got. I think he has JWT cams and valvetrain too, that's what, $2k-$2.5k extra?

/me winces at the cost

 

Well, you're right, but.... Not too many of us would be running boost if we had to build the engine first. It would be prohibitively expensive for most of us. At any rate, the accumulated experience of .org members indicates that the stock motor can stand at least up to 350-400 hp.

I really envy the Supra guys with their motors able to put out up to 800-900 hp with just bolt-ons.

 

why does everyone think you have to have some type of forced induction to build a motor...alot of people build motors , and stay n/a

 

At the risk of sounding ignorant, why would you need to build your motor if you're staying NA? Can you get more than 400 hp without boosting? Or are you talking about nitrous enhanced NA? Not flaming, just curious.

 

Yes, mybe not 400 hp but you can get more hp... like the Honda boys do it, the buy light cars, and do motor swaps...well a CRX with a B16a dose not run 13s, they build there motors, pistons, cams, rods, rings, new blocks, they higher the compression rate and make the insides more aggressive, and they have faster N/A motors.... well why the hell not with a maxima? People build motors, and they have no intentions of boost or nitrous. They have no plans of turbo or superC because they can give problems, and no nitrous because it can be dangerous, and basic bolt on's only go so far, so a lot of n/a guys build there motors to stay n/a

 

Unless you're doing some crazy variable intake and exhaust mods with variable cams that are optimal settings for every point on the RPM range, you're really not going to be able to pull more than 250hp (at the crank, and that's being really really generous) without any forced induction. This kind of horsepower wouldn't require any engine mods.

When you get into high boost pressures (10+ PSI), you need to drop the compression ratio by getting dished pistons and strengthening the connecting rods to handle higher HP (350+ HP). What do the bolt-on superchargers run? 6 PSI? You can do that with no internal mods and high octane, but go any higher and you're engine's going to be knockin' on heavan's door.

PS - Not flaming you either.

 

Im not dumb, i know you have to lower your compression rate to make it safe to run high boost, the reason i said why the hell does everyone think when you build a motor it has to be be with boost is because when the kid asked, everyone was asking, what do you plan on getting turbo, superC , big shots of nitrous? and that's why i said how come when somebody wants to build there motor they assume forced induction...people can build there motors and stay n/a, a good example is the Vq35 is a built motor of what we have...its been bored out, has more aggressive internals, new block, and bang they got about 40 more hp....same thing can be done with ours...its just we don't have the parts made for us, like a lot of American mucel cars do, or Honda cars. But there is always the option of building the Vq30 from parts from a Vq35, or a Vq30Det

 

Also the Honda engines have been torn apart examined and rebuilt many many times. There are multiple manufacturers making ready-to-buy versions of internal parts. $400 for a set of pistons, another $400 for rods. Manufacturers like HKS, Jun, Gude, etc. all making their own types of cams. The possibilites are limitless. It's much easier to build-up your engine even if you are staying N/A.

 

Thank you, that's what I was trying to explain, that Honda people have been doing it for a long time. A lot of people like to stay N/a because they feel its the safest more reliable way to go. I know its hard for use to get parts for us to build our motors, but if more people did it, companies would respond... Just my 2 cent

 

I'd be in that club for sure, if we had someone who could provide us with those parts (at a good price would be nice too).

 

Yeah after my 5 speed converson , im going to wait to see how that headers project works out with Ethan, and the im going to look into building a motor on the side and then droping it in. I think this time next year alot of cars will be able to hit low 14s high 13s easy , N/A

 

Would you be staying with the VQ30 and just trying like QV35 internals etc?

SuDZ

 

To make the engine 'more aggressive' in naturally aspirated form, many things need addressed. The WHOLE engine combination needs to be taken into account.

Stronger connecting rods and forged pistons are not what make the engine produce more power... they just allow it to survive the higher power output and rpm of the new 'combination'.

Producing a naturally aspirated combination that will make more horsepower, normally involves designing the engine to be more efficient at higher rpm.

To do it right will require a larger throttle body, larger shorter runner intake, possibly ported heads, bigger cams, higher compression ratio (maxima already has plenty for most combos), headers (ported manifolds work for most combos), and a big exhaust. This degree of changing things around, generally needs a computer tweak to optimize things... as many of the computer parameters are exceeded with all those changes. If larger fuel injectors are needed, the mass air meter will need recalibrated for them as well.

This is all 'old news' for the 5.0 mustang hobby. Those cars were produced by the boatloads, and there are TONS of aftermarket parts for them... but the same principles apply to the maxima. Maximas just don't have the same aftermarket support. If you venture 'beyond the basics' you're pretty much on your own.

The most I would do with one would involve the installation of lower compression pistons and an intercooler to allow more boost from a supercharger or turbo. But, even this will require a computer tweak and larger injectors if taken very far.

If you want to go really fast, you're going to run into a HUGE learning curve and spend a ton of money. You'd be better off starting with a vehicle that is better supported by the aftermarket.... Where the word 'intake' refers to the actual intake manifold..... not just the plastic piping running to it.

No offense to anyone here.... I LOVE my Maxima, but it's not a race car. It's a really great everyday street ride that will hold it's own at the stoplight against most other cars. It's just not the optimal ride to take to the next level.

The 5.0 mustangs are the best 'bang for the buck' hotrods out there... and are a great platform for a 11-13 second 1/4 mile street car.

Been there, been doing that for the past 20 years.

Good Luck!

 

Well see its like this, Ethan, Matt and I did some talking about Just droping a vq35 into my car, we resurched it, and were 95 % sure it would work, we would have to do ALL the electrical work, I could convert to a 6 speed but the 5 speed does line up, and we figure with the 5 speed we could get more power to the wheels. We could even make the 4th gen exhuast line up, and thats good because i have cat back, cat, and down pipe.Matt was studying the two cars motor mounts... the price of me doing the converson would be the same as a turbo... i see many benifits from i, new motor, i could beat alot of 4th gen superC maxs off a role n/a and on top of that down the road i could always turbo that motor. If it dosent work out, then yeah i will probly just build the motor from Vq35 parts, or get them custom made, i cant honestly say, i would have to shop around for price and study what would be the better way to go.

-Chris

 

Some of these thigns have already been done or are being produced.

The larger throttle body can come off of the Xterra like MardiGrasMax did. The intake should be handled by the MEVI that is now available to us. And JWT is getting those cams out supposedly, but no DYNO yet on them And exhaust we have a bunch of options as far as Y-pipe, testpipe, Bpipe, and mufflers, and like you said maybe soon headers.

So maybe it will not be that far off since more and more of these things are available to us. And I know that the ugh Mustangs etc are better ways to get their faster but these are more intresting to me personally. I mean most people see a mustang and figure it will be quick but do theyaccount for NA Maximas in the 13's?? I like it for that value.

SuDZ

 

What makes us diffrent from anyone els? You think CRX, or honda Civics are race cars? I dont....but i have seen many that will kill Cobra mustangs...The Kubo famiy owns one of the fastest n/a civics in the US, driven by Lisa Kubo and sponsored by nitto, she one the 2002 IDRC quick XVI world championship, coming in at a 9.1 in the 1/4

 

Hey, I fully respect anyone who takes a car and goes beyond what most others are capable of. It's the mark of a genuine enthusiast. It also shows they are smarter than the average person. My mustang is quite a bit faster than similar cars built to a similar extent.

All I was saying, is that it is easier to get there using a different platform.

If your goal is to run as quickly as possible, it's tough to beat a rear wheel drive V8 that has tons of relatively low cost aftermarket support.

For you guys venturing into the next level with Maximas, it might be worthwhile to study up on what sort of tweaks these guys are having to make to get their cars to work with larger boost levels, injectors, throttle bodies, ect.

Life can be very rewarding as a pioneer, but it can be very frustrating and cost a ton of money as well.

Good Luck!