i cannot find the vq 35 rod weight anywhere ,and ive never been known for being a good net searcher .


but iam up to something and i really need the weight of the vq35de rod

and if noone knows then maybe i can buy or borrow a rod off one of my fellow orgians. because i happen to have a scale that measures in grams that will be here in a day or two. and with that i can find the weight .


thanks

 

588.5 grams w/bolts.

 

thanks for the reply but do you have a weight without bolts or the weight of the bolt?

 

ok i just weighed the dek rod with bearing shims and rod bolts and nuts 582 grams. i didnt know the 3.0 and 3.5 weights were so close.

nissan says the 3.5 rod bolts are much lighter than the 3.0 bolt and nut design i just weighed the dek 3.0 rod bolt and nut at 30 grams (24G for the bolt and 6 G for the nut)

what iam getting at is the carrillo A beam rods are in the 490 G range with ARP rod bolts .

iam wondering what a 600 gram reduction would do for the power curve? and high rev worrys would be a thing of the past. as far as rod concerns go.

 

Yes those are the lightest mass-produced aftermarket rod for the VQ35 that i know of.
600 gram? Where's this number coming from?

Either way, you'd be hard pressed to feel the difference between one rod and the next for all practical purposes. It might help response slightly in the lower gears, but i doubt it'd show up on a dyno or at the track.
Any aftermarket forged rod could handle 8000+ RPM without a sweat, regardless of weight.

 

100g per rod x 6 = 600g

600g = 1.3lb
That's a fairly large chunk of reciprocating weight in the engine. that's worse than rotating weight.. you don't just have to spin it up once like the flywheel. you have to change the direction of these things moving many (up to 250) times per second. If removing 1lb from the flywheel is noticeable, which it is, this will be much more so.

You'd be hard-pressed NOT to see a difference in swapping rods.

 

The theory is sound, there's no denying that. UDP's make a difference in theory too. But i'm afraid that's all it is.

On the other hand, i didn't discredit lighter rods completely either.
I'd love to be directed to a link or magazine article where there was a HP increase recorded or 1/4 mile times dropped with lighter rods alone.

 

I would hope you'd balance the rotating assembly after the new rods...

~Alex