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-   -   My motor is dropped, what parts would you change? (http://www.the370z.com/nissan-370z-general-discussions/75346-my-motor-dropped-what-parts-would-you-change.html)

critical 08-15-2013 01:28 PM

Quote:

Originally Posted by Jordo! (Post 2447353)
Oil cooler while its there? Nothing crazy if you aren't tracking it, but while its out, why not?

Trans fluid cooler is probably not a bad idea (isn't there a stock one?) but again if not tracking it or boosting it, no need to over cool.

There is a stock one. There's a line that runs to and from the radiator for the 7at trans fluid.


Couldn't find any install instructions for a cooler but it looks like it'd be just rerouting to a cooler than back to the rad or viseversa.

wstar 08-15-2013 01:52 PM

On the mounts, it's all about being able to feel the car better. There's a certain amount of flex between the trans and engine themselves, even, and there's a fair amount of flex in the mounts of both to the frame of the car. When you're trying to control traction at the limit, it's all about being able to "feel" the car.

Basically your butt planted in the seat is getting feedback from the car. Your gas pedal is input to the car. The brake pedal and steering wheel are dual-purpose, they're inputs and you also feel feedback through them. In the same way that stiffer suspension makes that feedback loop work better for corner forces, stiffer motor/trans mounts make it work better for wheel slip during acceleration. You'll feel the direct impact of your gas pedal and steering angle adjustments under acceleration faster and more accurately (back through your butt and the steering wheel), so that you can make better and faster adjustments to keep it right where it should be.

The motor mounts are kind of a bitch to install with the engine in the car. I mean, it's doable, but it would be so much easier to do it while the engine's out. The trans mount you could do anytime, it's very trivial and nothing really comes out of the car to do it.

ShutokuZ 08-15-2013 03:23 PM

Not sure how stiffer motor mounts would feel on a Z, but on my Evo, I had the front and rear mounts changed to 90A poly ones, and it caused strong cabin vibrations. I imagine the Z would absorb more of that however.

Jordo! 08-15-2013 04:40 PM

Firmer mounts = more vibration... also I have seen a few broken solid mounts for the Z, so I'd do some extra research before buying...

In theory, it's less torque lost and thus faster driveline response. You won't see it on a dyno, but as wstar noted, you will FEEL it when you throttle on.

At idle you'll feel it too, tho'...

If you don't mind some extra vibration, and they won't crack, sure why not?

andre12031948 08-15-2013 05:21 PM

replace a valve head
 
Quote:

Originally Posted by DEpointfive0 (Post 2447277)
So my motor has been dropped to replace a valve head.
So I figure now is the time to install parts...

I have most standard bolt ons, but as of now, I'm thinking:

I decided FOR
Momentum headers
Change all hoses to blue silicone
Change all fluids


I decided AGAINST:
Jun Cams because no one has data
TT or S/C because I don't have that much money
CSF radiator because I don't track on death hot days and I'm not TT or S/C
Mishimoto thermostat because I don't want a CEL or over cooling


To be decided (have to do more research into it):
Larger PS cooler
Transmission cooler
G35/37 thermostat

As for both the mods suggested above, I'd love a PS cooler that can be almost a direct swap, making it easier for the techs to do, and I'd love to see a really good detailed install of a trans cooler

I believe there is a G35/37 OEM thermostat that opens 10 degrees sooner, and supposedly it won't cause a CEL.


Any suggestions or info would be greatly appreciated! :tiphat:


And please don't suggest, bore it out to 4.0L or dry sump or something to that effect, I don't have the time or money for that

Your not on the drag racing list. So did you damage the head road racing? I would get something/do something so the valve head won't get damaged again. Not easy to damage a valve head. What happened?

wstar 08-15-2013 05:22 PM

The Z1 Urethane versions aren't too bad. The car doesn't seem to be trying to shake itself apart or anything. But then again my car environment is pretty harsh in general, maybe I'm not the best judge :)

Chuck33079 08-15-2013 05:26 PM

Quote:

Originally Posted by andre12031948 (Post 2447742)
Your not on the drag racing list. So did you damage the head road racing? I would get something/do something so the valve head won't get damaged again. Not easy to damage a valve head. What happened?

The last dealer to work on it dropped a manifold nut into the head and lunched a valve.

andre12031948 08-15-2013 05:30 PM

Quote:

Originally Posted by Chuck33079 (Post 2447754)
The last dealer to work on it dropped a manifold nut into the head and lunched a valve.

Wow! They had to try hard to do that:)

How do you know?

Chuck33079 08-15-2013 05:33 PM

Quote:

Originally Posted by andre12031948 (Post 2447759)
Wow! They had to try hard to do that:)

How do you know?

He's got a long thread on it.

2xtreme1 08-15-2013 11:15 PM

You lost me at. "My motor is dropped" o,o
Ummm don't forget to change the oil ?

DEpointfive0 08-16-2013 12:01 AM

Quote:

Originally Posted by 2xtreme1 (Post 2448231)
You lost me at. "My motor is dropped" o,o
Ummm don't forget to change the oil ?

?

My motor is currently outside the car
And man I'd LMAO if they don't change the oil.

2xtreme1 08-16-2013 12:11 AM

Quote:

Originally Posted by DEpointfive0 (Post 2448284)
?

My motor is currently outside the car
And man I'd LMAO if they don't change the oil.

Lol, I'm just a noob when it comes to car parts especially the engine haha

chrischhorn 08-16-2013 12:25 AM

You should install the Momentum headers I was unable to get off in time......

Leuz 08-16-2013 12:51 AM

Why not straight to F.I. LTH?

DEpointfive0 08-16-2013 04:38 AM

Quote:

Originally Posted by chrischhorn (Post 2448304)
You should install the Momentum headers I was unable to get off in time......

FARK!!!

Quote:

Originally Posted by Leuz (Post 2448321)
Why not straight to F.I. LTH?

Welllllllll... I like the ability to go from TPs to cats and such...


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