I sent an email to ARP this morning to see if they would make me some rod bolts. I really prefer to buy their stuff over the Nismo bolts. I just got back the following response.


"HELLO

OUR PART # 202-6006 IS FOR THE VQ35 AS FAR AS HOW IT COMPARES TO THE OEM BOLT WE HAVEN’T TESTED

AGAINST THEM ANY INFO YOU NEED YOU CAN CALL OUR FACTORY @ 805-525-1497

THANKS

RONF"

 

Great job but they wont work on the 3.0 rods?

 

Nope. VQ30 rod bolts are completely different. But that doesn't mean they don't have them too.

 

What do you have planned that you would need them for?

 

Sounds like a next purchase for me

 

Yup. And find out whichever one of us finds the better price.

 

I will price them tomorrow.

 

Sweet .

 

Find any good prices yet?

 

I just ordered a set. They will be here in about 2 weeks. I am not supposed to disclose my price though. But I will say they can be had for roughly half what I have seen the Nismo bolts sell for. List on them is $229 so that should give you an idea.

7500rpm TS L-Spec ECU will come next.

 

sweet dude, spin them bitces.

 

sounds like easy 12's

 

now that sounds nice!

 

What is the process to change VQ35 rod bolts?

Can it be done with the rods still in the engine?

The NISMO ones require different torque specs, what about the ARPs?

 

I will install the bolts the first weekend I have them in my posession and they can be installed with the engine still in the car. But I haven't seen any revised torque specs for those bolts. I might snap a few pictures and explain a few things as I go along.
Some of the 350Z guys aren't responding too well to this and think I am full of crap for wanting to rev the OE rods that high.

 

them stuck up b@stards probably think they are better cause they got a 350 wait till the get I have a 350z already.

 

Not all of them are behaving that way. Some are being receptive and supportive of my project.

 

You've owned a 350 with the 3.5 '97?

 

"Let me give you just a few quick highlights of the 35th Anniversary model, starting with its powertrain:

- Horsepower, when equipped with the manual transmission, is 300 – exactly double that of the original Z
- Torque is 260 lb-ft, versus 148 on the 240Z
- The engine is the new higher performance version of the standard 350Z VQ engine
- Modifications made to achieve 300 horsepower include:
- strengthened connecting rods and bolts
- double-mass crank pulley
- revised shape of the piston head
- new camshaft profile, remapped ECM and more

- This higher performance engine tuning will also be available with the 2005 350Z Track model
- The 35th Anniversary model is also available with a 5-speed automatic transmission and 287 horsepower-spec engine"



So I guess DAVEB needs to report pricing on these new rods. I am pretty sure the new cams are just Nismo parts.

 

- double-mass crank pulley whats the exact meaning of this?

 

More mass in the trash when it gets replaced by a lightweight UDP?

 

they put that on there too slow it down.

 

350z guys are stuck up.

 

Yeah, I don't understand why you would double the mass. You'd think they would make it weigh LESS...I'm sure there's a good reason for it though.

 

They might have needed the additional mass to tune out crankshaft torsional natural frequencies. Just a shot in the dark.

 

Look what came in today.

 

How much....

 

for god sakes read post #10

 

The bottom cover just came off and the ARP install is about to begin.

 

Yeah I never understood why???

So aarp is better than nismo? Sorry for the noob ques, Im just starting to learn a little more

 

oh my.

 

I guess I should update this thread. The ARP rod bolts are happily splashing around in a bath of Redline 5w-30.

The next big project is an extended map to 7500rpm.

 

i can't wait to see what kind of numbers your car puts down at the track.

 

How Is The Install Going??

 

That question is two days late and already answered.

 

When do you expect to get your ECU back from TS?

Are you going to redyno to see what happens above 6600rpm with your "SS" manifold?

 

heat treated 8740 cromoly...200,000psi tensile strength...nice

 

You can change those rod bolts in the car, just remove the lower and upper oil pans, turn the engine over till the big end of the rod is at its lowest point on the cranks revolution. I've done rod bearings on Sentras and 4G63 DSMs like that- in the car. SR20DEN lemme know how the ECU works.

 

Tilley found me a set for $125

 

hey,

please excuse my ignorance but this discussion is confusing me a bit:

How crucial were the strengethed rod bolts to allowing for the TS ECU at up to 7500 RPMs. Was this one of the main motivations here, i'm still not totally undertanding the advantage of strengthening the rod bolts (and of course i got alot to learn here) .