Theres a TON of information on NICO about this engine, wether or not its in the FSM or not... I got an email from someone this afternoon and thought that would be a fantastic idea... Id like to compile this information, and then we can do an article on it or something..... The KEY is here I want anyone to be as involved as possible.. Whatever tidbit that you have that is helpful.. I just dont want a bunch of stupid things like I HATE THE PLENUM or THEY WEDGED THIS ENGINE IN THE CAR... Lets try and keep this technical...

Things I dont want are things not related to the engine... THIS IS ABOUT THE VH45DE!

So ill try and start with some basic things that Ive picked up.... this is from the FSM.. So any other tidbits that arent from the FSM is good... BTW if this info is wrong please correct...

Closed deck engine
6 bolt mains, 2 are crossed
274.22CI, 4494CC
Bore/stroke- 93x82.7mm (3.66/3.256in)
Multiport fuel injection with equal length runners
370CC injectors
2 compression piston rings
1 oil piston ring
10.2:1 Compression Ratio

Id like to see someone post a very accurate physical dimensions and weight...

EDIT: One other thing, if you have a technical question that isnt covered by this, much like what Rex is posting right below me, feel free to ask this so we can answer it.

Need a Nissan/Infiniti Mechanic around Indy OR Northern Indiana?? EMAIL ME!!!

NICO ECU's for sale

Great thread idea BTW.

Intake manifold #8 also retains a side bracket that houses one of the fuel pressure regulators

Intake manifold to cylinder head bolts are 12mm, 2 per manifold
(Length & thread pitch?)

Intake to Cylinder Head gasket is metal (Thickness?)

Modified by anlasak at 2:51 PM 10/6/2005

Can we get some internal specifications? Like clearances/tolerances

1991 Q45 Timing Chain Links/Pins
(May cover other years as well)

So, How much boost do you think the stock internals can handle if temperature is not a factor?

SO much torque on this that people say they can see the chassis flexing!

10lbs???

New and improved:

http://300zx.kwn.no/drift_300zx.wmv

Wow, he's injecting a vacuum into his engine!

Actually it'd be 1.68bar wes. 1 bar equals outside pressure. You're thinking of a pressure guage, not a barometer

Well, considering that at sea level 1 bar is atmospheric pressure.

anything under one bar is lower then atmospheric pressure, which by definition is a vacuum.

A "boost guage" is actually a pressure guage, not a barometer. When it says 0, it's 0 above atmospheric pressure.

Whereas a barometer starts out at 14.7PSI, which is equal to one bar.

So depending on how you look at it, we're both right, BUT sinse he said the word "bar" that implies barometer

*edit* You guys are confusing a pressure guage with a barometer

24.36634psi - 10psi = 14.3psi, close to atmospheric

So it would be .70 ksc = 10 psi = .69 bar

And the legend lives on! Wes>PMQ

psia = psig + atmospheric pressure @ sea level (14.7psi)

I know Wes meant psig , which is what I wanted to know.

But since this is supposed to be THE ULTIMATE FAQ on the VH45DE, I should have spelled it out more clearly.

(Clean out each bolt Prior to attempting removal !!)

I didn't get 1 completely clean & stripped out the bolt.

Mike

It is.

VH45DE camshaft angles

Nitrous and VH45DE

More camshaft information

A chain guide thread but lots of good information

Supercharged VH45DE in a skyline

VH45DE in a 240

More power related info

Assorted good information

VH45 in a skyline

Nitrous and VH45DE

More

All the pics on page 1 are red X's

Thats an interesting link. He went the opposite way my father was suggesting, (ie,.. RB series motor in my Q45)

Any detailed threads involving the hydraulic lash adjusters?
(I searched & came up with no results)

The question remains... Why woudl you put an RB in the Q? that seems pretty stupid to me... UNLESS of COURSE you were talking with the ATESSA...

Quote, originally posted by elwesso »

UNLESS of COURSE you were talking with the ATESSA...

I was

But I didn't want to have to scrounge around for the rear end sensors/wiring/etc, that would've been needed to make it work properly.
Not to mention the other little things here & there.

Also if something goes bad on my VH45DE I can find it online or at a local junkyard.
I haven't seen an RB series motors in any junkyards lately.

Besides, I'm happy with my VH45DE.

I like the idea of an AWD Q45 as well, but only if its a manual & I have one.

I wouldn't consider dropping in an RB series motor to be "stupid", merely impractical.
Stupid would be dropping in a SR20DE

( I wouldn't mind a 6-speed Gertrag though )

*EDIT* *Corrections made, see below*


Modified by anlasak at 9:38 PM 11/18/2005

THe RB can make plenty of torque if that's what you're "worried" about

Depends who you talk to!!