Just got an e-mail back from Courtesy Nissan about my inquiry....I WAS going to get this engine if it was priced right. Its the only thing I want from the 2002. But I was very dissapointed to find out this....

Greetings
The engine new is 8435.72
Thanks
Wic


Courtesy Nissan
1777 North Central Expressway
Richardson, Texas 75080
800-527-1909 or 972-644-3942
Fax 800-382-7891 or 972-234-4924
courtesy@airmail.net
www.courtesyparts.com

So much fro trying to be original, and a trend-setter!! I'll talk to you guys when I hit the lotto!

Deac

 

hmmm 8k huh? SC it, beef up your tranny, and do the exhaust and you will be faster than the 2k2

 

haha how much on install!

 

You can wait a month or two and find a totalled 2002. Probably much cheaper for the engine from a salvage operation.

 

just wait till some bozo wrecks one, and then steal the hopefully intact VQ35DE and tranny out of it for less than half of that

But seriously though, I'd rather just mod the crap out of a VQ30DE instead of doing a full engine swap for 33HP. You could probably get up to about that power level for cheaper and thus still come out ahead

 

A rep. from Nissan Motor Corp. Hawaii was saying that the VQ35DE is actually a VQ30DE, but bored out. ?? is that possible/any truth to this? Even a sliver? Does it matter?

Eyelids getting heavy,
bp

 

No reason to lie, its the same engine but bigger. It HAS to be bored out.

 

\

Correct, everything i've heard and read it's a bored 3.0L That's not a bad thing.

 

vq35de: Bore x Stroke (inches) 3.76 X 3.205
Bore X stroke (mm) 95.5 X 81.4

vq30de: Bore X stroke (inches) 3.66 X 2.89
Bore X stroke (mm) 93.0 X 73.3


the new motor has a bigger bore and stroke. I could be wrong about the figures as I got them from the web in like 20 seconds.. One could stroke the vq30de using a 3.5L crank. this would yield a 3.3L motor (probably alot more torque and a little more HP, and a reduced rev limit)

 

Whatcha guys think about VQ35? is it going to keep the streak going?

 

For those who don't know,

the Displacement on an engine is not how you would normally think of the word "displacement" (I think of "displacement" as how much liquid volume it takes up)

Engine Displacement is typically measured in Litres and it is the difference between the MINIMUM volume (compressed state of the cylinder) and the MAXIMUM volume (totally uncompressed, the fuel intake stage of the cylinder). Then you add up the total displacement of each cylinder to get the total (3000 cc = 3.0L on the 5th gen maxima, or 0.5L / cylinder)

Increasing the compression can give you a bigger explosion, meaning more power! Increasing the max volume of the engine is the other option to increase displacement.

(see www.howstuffworks.com)

 

So if this IS the case, then does anyone know if its possible to mod the 3.0 into a 3.5? "Bore-out" the 3.0 and put the bigger pistons in?!?! Can you say....Nissan tech support??!? I think that somebody has to go out on a limb and just do it if its possible...If I can find out that all that needs to be done is to bore out the 3.0 then I'd be willing to try...my brothers' a mechanic and even though hes a Honda/Acura guy, he'd help out. Research my friends, research!

Deac :vampire:

 

its complicated.... the ECU wouldn't match up...

 

Yes. Back in the day one could bore out engines and run high compression, all you had to adjust was the carb. But in the days of fuel injection and computer controlled everything it is hard to do thos kinds of mods. Until someone can "crack" the VQ code then we're stuck in the sub 300WHP range. If the code was easily modded then the HP numbers could easily reach 400WHP, well not easily but it could be done. Now all we can do is our bolt-ons and dream of tomorrow. I was 5 numbers off of the Power Ball this weekend, if I would have had them I could afford to pay some one to crack it.

 

Just think though, a 3.5L engine, plus a supercharger, that's 255+75=330HP. At the wheels, that's still 225+75HP=300HP!

Or, 3.5L engine, plus a supercharger, plus 75-shot nitrous, that's 255+75+75=405HP!

Of course, that's $8,400 for the engine + $3,500 for the SC, + $300 for the nitrous kit.

WOOHOO!

Tanman
2000 Maxima SE Black Automatic

 

$4000 plus for the install of it all.

 

If we did bore-out the 3.0 to a 3.5, then why not just use the same computer specs from the 2002 so that the 2k & 2k1's would be compatible?!? Hey, it might work!!

 

Actually, I've been told you probably won't be able to supercharge the VQ35DE because it is basically the VQ30DE just bored and stroked. Because the compression ratio is already high in the bored version of the engine, additional forced induction from the SC would probably destroy the engine. Maybe Stillen will make a new version of their SC for the new Maxima engine.

 

there are many other factors that come into play... the ECU controls too many things in addition to the fuel maps and timing... In fact, I think it was posted here earlier that simply swapping the ECU from one maxima to another resulted in neither of the cars even starting... the immobilizer code is embedded in the ECU also...

 

Hehehehe..... who did that?

 

hehehe.... so did you ever get that hesitation problem fixed? Did you try swapping coils?

 

Nope, we haven't tried that yet... yes, still have the problem.

 

That actually sounds like a bargain. Ford wanted 9000+ for the 3.0 liter SHO motor several years ago.

Norm

 

time to swap those coils... I bet they are a pain to get to though....

 

"NOOOOORRRRM!!!"

FORD wanted $9,000 for a YAMAHA engine!!
I had a '93 SHO. Pretty fast, too.
I had pretty good luck with it, considering it was a Ford.
I couldn't pass up the Max, though.

 

The front coils are simple, but the back ones take time. Yeah, I need to get that problem fixed.

 

I'm inclined to think that the 3.5 is a very similar engine that uses a different block casting.

If 73tiiguy has provided us with the correct bore & stroke info, that would imply that the 3.0 could be bored 0.100" over. That's awfully optimistic for a regular production engine (even the small block Chevy V8 hasn't been good for that much since it the days of the 283). So it has to be cored a little differently for cylinder wall thickness reasons.

Then we come to the stroke change. That extra 0.315" of stroke also has implications for block dimensions. Unless you're willing to accept a short rod ratio engine, the connecting rods will end up being longer in order to maintain the same ratio of rod length to crank throw (and hence rod angularity). Roughly 0.5" to 0.55" longer in this case. Now add half the stroke increase to the longer rods and you are looking at increasing the distance from the crank centerline to the small ends of the rods by nearly 0.7". You aren't going to get all that back by moving the pin (and consequently the ring pack) higher up in the piston, so your deck has to get taller.

Does anybody happen to know the designation of or any dimensional info about the 3.5 Pathfinder engine?

Norm

 

Why just find a wrecked 2000 pathfinder and buy its VQ35DE? At the salveyards they run around $1200-1900, I bet none of them are over 60k miles.