Hi all, I am new to the forum, but I have had a built SE-R (14.5 1/4 mile all motor ) and now a 2001 Max. What has anyone heard about any news about the 3.5 motors and ECUs. Seems to me the Alitma is tuned to 240, Maximas to 255 and the 350Z to 280 or so...has anyone tried changing the ECU from a 350Z into a max or altima.? Are there any other differneces between the motors that allows the Z to bring bigger power with the same motors. I am not aware of any cam differences or compression differences...?? If I missed a thread on this I apologize, I was day dreaming and thought you all would have an answer.

 

Maxima dynos almost the same as Altima and 350Z dynos 225-230hp, so it is not close to 287hp Nissan is saying. Overrated. As far as Z having a bit more power compared to Max, it has different intake manifold and exhaust, maybe something else.

I don't think 350Z any faster than properly driven 6-speed Max. Me and my friend dynoed his 350Z and hp was about 225-230 and torque was exactly the same as that other people got on 6-speed Max.

 

Don't forget it's RWD, that's one reason why it's faster.

 

Well maybe off the line it is a little bit faster, but they have similary crappy tires like we do, my friend gets them spining very easily.

 

Dany-I heard 350s were dynoing around 244-247 or so to the wheels and the MAximas at 215-220 or so Altimas at 200-210..Do you have any dynos of the Z versus the MAx.?

BTW is the intake plenum itself different or is it just the intake tube arm airbox.?

 

stock 6spds seem to be dynoing roughly a little under 210hp, and about 220 torque. the Z seems to be dynoing in with about 20 more hp, and just about the same torque, 230hp and 220tq. for fair measure, a 6spd maxima with i/y/e dyno roughly 230hp and 230tq. theres also a few out there with Z that have actually dynoed in the 240hp range stock. i think most dynos for the Z are done in 4th gear, when it should be done in 5th.

 

Without knowing the gear ratios of the Altima/Z and Max, is the Z dynoing in the 1:1 ratio gear (which is fifth from what you are saying) and 3rd on the Altima's and 5th for the Max.?

So dyno results aside the Z is still about 20HP or so stronger due to what..? Or are you saying dyno error makes it 20 and its more like an altima/Max with a good exhaust and intake.?

 

Yeah, intake tube is also straight on 350Z compared to Max that has bends and other crap in there. If Max gains 10hp when replacing stock intake with midpipe, so 350Z already has the intake that is not restrictive.

My friend dynoed his 350Z in 4th gear, I guess he should have done it in 5th if that is closer to 1:1. He got like 229hp and like 225tq.
I think the best 1:1 gear for 6-speed Max is 4th gear.
Steve(FrankenCar) got 205hp and 226tq stock on his 6-speed.

 

Altima, 3rd is closest to 1:1
Maxima, 4th is closest to 1:1(only on 2k2-2k3 6spds)
350Z, 5th gear IS 1:1(literally, not .9xx or 1.0xx)

 

I'm pretty sure that 4th gear is the closest 1:1 gear for the altima. The gearing on the altima is the same as the 95-01 max(I beleive) and they all dyno in 4th.

02 max = 199-208 WHP
02 Altima same
350Z 235-242 WHP. The Z is definatly NOT over rated..

As for ECU compatibility, the altima and max of course would be compatible, mechanicly the cars are identical minus the tranny.

The Z's ECU is some what different from the max's. The Z uses a single runner intake manifold while the max uses a VIM. That alone could possibly through things off on the maxima. I beleive the manifold on the max is run completly off of vacume though so not having the "correct" ECU may not matter.

 

That's too bad~!

Since the latest SCC has a Greddy Twin Turbo 350Z teaser article, which also says it runs a Greddy E-manage piggy-ECU.

I hoped the ECU would be compatible for 3.5L guys.

 

I actually think it will be compatible Only one way to find out though

 

GOOOOOOOOOoooooooooooo, Ewok!

Make us proud.

 

emax, u should have just dynoed with that 350 intake manifold, since it didnt fit all to well with the hood and all. Dyno off the manifold would show if that makes up the power difference that the 350Z has. If thats figured out, then ya pretty much proved the engines are identical, considering ur intake and exhaust are freed up enough to be better than a stock 350z if not the same.

 

That sounds good and all but I need to still buy the lower intake manifold. That is close to another $300. Once the weather gets a little better I will likely get it and dyno.

 

Ethan,

Talk to Dave Burnette. He is waaaay cool.

I'm willing to bet he would loan you the lower intake manifold. If it fits, he charges you for it. If not, you send it back.

He would sell 350Z manifolds like friggen hot cakes if it works and the dynos look good.

Of course he would help!

 

I have been speaking to Dave lately and I agree, he's very helpfull. He checked out certain part #'s for me and through my own reserarch I have become 100% confident the lower manifold will fit on. I'm now 30 degrees and $400 away form testing this out.

Theres one problem your forgetting about, hood clearance Custom work needs to be done there so this is not gonna be a simple bolt on. I suspect no one else will even try this, even it if I gain 20 WHP.

 

i would buy it. who cares about looks. if it looks good, then it looks good with a custom hood. if it doesn't, then the other guys think we did it for fashion, when we really have an xtra 20 whp to show what that hood can really do!!! hehhee