Vh45de Z32 Solves my issues

Discuss topics related to the VH41DE, VH45DE, VK45DE, and VK56DE engines.
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Z32 Ver.2ptGood
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Joined: Mon Feb 23, 2009 4:15 pm
Car: 90 Z32 N/A 2+2

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Hello all, I'm a first time poster, long time reader. Have always admired the work of others on this forum and it's just about my time. About a year ago, i noticed i had a problem, my z just wasn't fast enough. Correct me if im wrong but a VH45DE could just be the cure. In roughly 1 month i plan to start my VH45 swap into my 90 Z32 2+2 and until then i want to make sure i have all the fundumentals of what goes into this project down and strait. So a couple questions, er lots of questions, before i get ready to accumulate and purchase my new toys.

I plan on using the 94 vh, completely stock, into the z with a modified Xmember and the Mazworx adapter. Im still shopping around for a radiator and fans. I aso plan using the Q45 P/S pump and I've read it will work once the pump has been flipped upside down. I will still lower my sway bar an inch or so to avoid more problems. I will also keep oil pan front sump and only mod the middle level of the pan. i will be using the Stock Q45 fuel pump as well as the stock headers; minus the heat sheilds.

Can anybody help me see what others delimas i might have? Thanks


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CrazyTrance
Posts: 247
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Car: 1991 Nissan 240sx - vh45de
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Z32 Ver.2ptGood wrote:Hello all, I'm a first time poster, long time reader. Have always admired the work of others on this forum and it's just about my time. About a year ago, i noticed i had a problem, my z just wasn't fast enough. Correct me if im wrong but a VH45DE could just be the cure. In roughly 1 month i plan to start my VH45 swap into my 90 Z32 2+2 and until then i want to make sure i have all the fundumentals of what goes into this project down and strait. So a couple questions, er lots of questions, before i get ready to accumulate and purchase my new toys.

I plan on using the 94 vh, completely stock, into the z with a modified Xmember and the Mazworx adapter. Im still shopping around for a radiator and fans. I aso plan using the Q45 P/S pump and I've read it will work once the pump has been flipped upside down. I will still lower my sway bar an inch or so to avoid more problems. I will also keep oil pan front sump and only mod the middle level of the pan. i will be using the Stock Q45 fuel pump as well as the stock headers; minus the heat sheilds.

Can anybody help me see what others delimas i might have? Thanks
zerothread?id=335689

You'll need that for sure

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Chrispy300
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Car: 1993 J-Spec 300ZX 5 Speed Slicktop
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If you make a new sump you don't have to mod the crossmember or space the swaybar which is prefferable IMO.

Second on Nick's wiring diagram, helped me out bigtime!

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Z32 Ver.2ptGood
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Joined: Mon Feb 23, 2009 4:15 pm
Car: 90 Z32 N/A 2+2

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Thanks, got the diagram, and modding the Xmember just seems as it would be an easier task to me, wouldn't have to mess with leaks, warped flanges, the pick up tube, ect.

i've searching around in the z32 forum and couldn't seem to find my answer. any problems with using an N/a bellhousing on a tt transmission? as well as an na flywheel? i ask because im planning on sending out my n/a transmission bellhousing to mazworx in a week or so, but the n/a transmission i got isn't in great condition so a tt will propably be purchased shortly after.

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SuperHatch
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Car: 96 TLC

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Chrispy300 wrote:If you make a new sump you don't have to mod the crossmember or space the swaybar which is prefferable IMO.

Second on Nick's wiring diagram, helped me out bigtime!
Swaybar still needs to be spaced with a rear sump setup. It interferes with the PS pump.

Third on Nicks wiring... top notch.

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SuperHatch
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Z32 Ver.2ptGood wrote:Thanks, got the diagram, and modding the Xmember just seems as it would be an easier task to me, wouldn't have to mess with leaks, warped flanges, the pick up tube, ect.

i've searching around in the z32 forum and couldn't seem to find my answer. any problems with using an N/a bellhousing on a tt transmission? as well as an na flywheel? i ask because im planning on sending out my n/a transmission bellhousing to mazworx in a week or so, but the n/a transmission i got isn't in great condition so a tt will propably be purchased shortly after.
You wont have any problem using the NA bell on the TT trans, it will bolt right up. Do yourself and get a used TT flywheel and run a TT clutch, even the OEM tt clutch will be fine.

When Mazworx mods the NA bell they clearance it for a TT flywheel, they also include the spacer needed to space the starter. A used OEM TT flywheel and a new OEM TT clutch kit will cost you the same or less than an upgraded NA clutch. It will hold the VH torque without a problem, and will have a lighter pedal than any aftermarket NA clutch. That is of course if you like a light pedal. This also gives you more avenues for upgraded clutches later if you decided to add some power to that VH.

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CrazyTrance
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Car: 1991 Nissan 240sx - vh45de
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Yeah, i have the NA trans and it is holding up just fine. Unsprung 6 puck clutch with a welded diff... it will take it. I'm using an NA clutch also and it's fine.

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Z32 Ver.2ptGood
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Joined: Mon Feb 23, 2009 4:15 pm
Car: 90 Z32 N/A 2+2

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Thanks for all the replies. Definetly help in making my decisions. has anybody heard of a Z32 300ZX 98+ SPEC MANUAL TRANSMISSION 90-96

Here's what the seller has to say;"These 98+ specification Japanese Spec (JSPEC) transmission have the updated and improved double syncro system which greatly improves the shift action and long term reliability which was the short comings of the earlier model transmissions. The older model transmissions from 90-96 had single syncro system which was prone to breaking and cause gear clashing and grinding. Again, this is brand new, in a Nissan crate from Japan, these are not used or rebuilt, brand new as in never been ever near or on a car!!"

I'm budgeting to purchase this transmission, but im really concerned with its legitimacy. If i dont get this transmission then i plan on getting another N/A.

I was told there were no diferences between the tt and N/a transmission apart from the bellhousing.

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Z32 Ver.2ptGood
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Joined: Mon Feb 23, 2009 4:15 pm
Car: 90 Z32 N/A 2+2

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Anybody have any suggestions for a nice radiator sutable for the vh? Ive set my budget to pretty low for a rad, and i suppose i could use a stock Q rad, but i'd prefere to get something shinny lol.

Superhatch; off the top of your head do you remember the dimensions of your rad?

DJ Raijin
Posts: 468
Joined: Thu Aug 21, 2008 10:26 pm
Car: 1992 300ZX 2+0 T Top NA

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Z32 Ver.2ptGood wrote:Thanks for all the replies. Definetly help in making my decisions. has anybody heard of a Z32 300ZX 98+ SPEC MANUAL TRANSMISSION 90-96

Here's what the seller has to say;"These 98+ specification Japanese Spec (JSPEC) transmission have the updated and improved double syncro system which greatly improves the shift action and long term reliability which was the short comings of the earlier model transmissions. The older model transmissions from 90-96 had single syncro system which was prone to breaking and cause gear clashing and grinding. Again, this is brand new, in a Nissan crate from Japan, these are not used or rebuilt, brand new as in never been ever near or on a car!!"

I'm budgeting to purchase this transmission, but im really concerned with its legitimacy. If i dont get this transmission then i plan on getting another N/A.

I was told there were no diferences between the tt and N/a transmission apart from the bellhousing.
You're correct in that there is no difference between the TT and N/A transmission. They'll both bolt up either way. What I was told to do was upgrade to the stock Twin Turbo clutch and flywheel on an N/A transmission (which Mazworx will have your bellhousing already clearanced for the TT gear).

Also, I heard that the last year or two for the jdm models, the transmissions did have updated synchros. I don't know of a way to identify if it's a 98+ or not

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CrazyTrance
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I'm running an aluminum r32 gts radiator. Carl recommended it to me. Got it off ebay for cheap. It's a dual core and it's doin the job quite nicely. And i've got the ford taurus rad that will take care of the temps if it decides to get a little hot. I've only once had to run the fan on high and that was hen i was driving 600 miles in 96 degree weather with the stock 240 radiator.. haha

But then again that was when i practically had straight water in the system... woops. So i guess we will see this summer.

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SuperHatch
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Z32 Ver.2ptGood wrote:Anybody have any suggestions for a nice radiator sutable for the vh? Ive set my budget to pretty low for a rad, and i suppose i could use a stock Q rad, but i'd prefere to get something shinny lol.

Superhatch; off the top of your head do you remember the dimensions of your rad?
My rad is 26.5" wide and 19" tall. I did an Engineering Drawing of exactly what I wanted and sent it to Howe. I had a custom radiator on my doorstep 5 days later, you can't beat that service. Of course this wasn't cheap... the radiator was the most expensive single part purchased for my conversion, even more than the engine. My radiator is overkill for 90% of people out there, my total cooling system capacity is now 4.5 gallons of coolant. The radiator is a double pass double core. I've said it before that I plan on tracking my car in the middle of the summer for 30 minute lapping sessions, I didn't want heat to be an issue.

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Z32 Ver.2ptGood
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Car: 90 Z32 N/A 2+2

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thanks all, so im torn between two decicions, get the super cheap r32 rad that would do just fine, or custom build one from FSR. anybody have any experience with these guys? and the transmission info is definetly helpfull.

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Chrispy300
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SuperHatch wrote:
Swaybar still needs to be spaced with a rear sump setup. It interferes with the PS pump.

Third on Nicks wiring... top notch.
Not if you don't have power steering

There are some minor differances between the TT and NA gearboxs. The machined bit where the starter bolts to is 3mm higher on the TT, this allows for a larger diameter flywheel. Also a few of the internals have differant part numbers (a couple of the gears and the intermeidate shaft IIRC). Not that it really matters, lots of people have used NA gearboxs behind TT's with no hassles.

I'm using a NA 5 speed on my VH, it's the only one of the three that I have that has been rebuilt...

As for the rad, go the cheaper one. I'm using a 42mm twin pass PWR rad that was for a TT 300ZX. Not cheap but fits well.

DJ Raijin
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Joined: Thu Aug 21, 2008 10:26 pm
Car: 1992 300ZX 2+0 T Top NA

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Z32 Ver.2ptGood wrote:thanks all, so im torn between two decicions, get the super cheap r32 rad that would do just fine, or custom build one from FSR. anybody have any experience with these guys? and the transmission info is definetly helpfull.
Just go with the R32 radiator. Whatever get's you driving a V8 Z sooner, the better.

gs14racer
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I can tell you with my griffin radiator and my taurus fan, i cant even get the car over 160 degrees (after some abuse) it actually hovers around 130. i have to install a switch or thermo switch to cycle it because it runs like crap when cold lol

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Carl H
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the r32 radiator might not fit well under the z hood its a good option for the s13/14 guys and it was cheap.

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Z32 Ver.2ptGood
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Car: 90 Z32 N/A 2+2

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Ive decided to go custom, i think FSR offers a pretty good price for what they offer, but will still do some shopping around for any other dependable companies. i dont wana skimp around as far as radiators.

On another note; i may end up pushing back the start date of fabrication and swapage; my broker told me that lender approval for the home im buying has been put on hold, er its pending due to stuff i dont really get. this means i may have to wait another 3 weeks to move into my home or more. but just as long as i move in 3 weeks or less i will still be on track for VH swapage. crossed fingers

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Z32 Ver.2ptGood
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Car: 90 Z32 N/A 2+2

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uhhh.... anybody see a problem with capping the rear coolant hoses on the VH for the heater core? or is it nesisary to have coolant flow from one another? I dont currently have a heater core and dont plan on getn one.perhaps i should invest in a service repair manual..

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Chrispy300
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The service manuals are on here somewhere...

I don't think that there is any reason why you couldn't cap the heater pipes. I love my heater, that's one thing I MUST have :p I'm pretty soft though

DJ Raijin
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Car: 1992 300ZX 2+0 T Top NA

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Chrispy300 wrote:The service manuals are on here somewhere...

I don't think that there is any reason why you couldn't cap the heater pipes. I love my heater, that's one thing I MUST have :p I'm pretty soft though
I'm the same...I NEED my heater. A/C is unnecessary, that's what I got T Tops for

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Z32 Ver.2ptGood
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havn't posted in awhile, ive been busy shopping,I'l be getting fuel pump, and water pump soon. anybody know where a gasket set could be purchased inexpensivley? for a 94 VH.anybody wanna sell me a 94 wiring harness and/or ECU? i would like to start on the wiring project asap.

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Z32 Ver.2ptGood
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Car: 90 Z32 N/A 2+2

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should i count on the oil filter going in neatly and nicely?, or will it have to be relocated?

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Chrispy300
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Z32 Ver.2ptGood wrote:should i count on the oil filter going in neatly and nicely?, or will it have to be relocated?
It'll fit...

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Z32 Ver.2ptGood
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Car: 90 Z32 N/A 2+2

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I cant seem to make up my mind and i would like to order ASAP. RPS flywheel, fidanza, or JWT? is it even worth getting a flyheel with replaceable friction plates?

diference in cost is;$575 RPS Flywheel (including extra friction plates/heat shields)$455 Fidanza Flywheel (including Friction plate)$375 JWT

I cant seem to find replacement steal inserts for JWT flywheel, im afraid to find out what they charge.

anybody happen to know which is for certain the almighty flywheel?

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Z32 Ver.2ptGood
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Car: 90 Z32 N/A 2+2

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As far as gaskets go, what are the diferences between a 92- vh45 and a 94 vh45? is it just the siamese ports instead of oval ports on the later gen?

does anybody know if kerzan sells a 94 gasket set?

anybody know of a cheaper set?

thanks

gs14racer
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instead of aluminum flywheels that have a tendency to warp and break get a steel chromoly one. They can be had for 200 or less and are only 3 lbs heavier than the aluminum ones at around 12 - 13 lbs.

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Z32 Ver.2ptGood
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Car: 90 Z32 N/A 2+2

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Project Has Comenced!!! picked up two 94 VH's, ECU, and donor car.Anybody have the most recent Q45 to Z32 VH wiring document or diagram I have nicks 2.6 revision currently?

Modified by Z32 Ver.2ptGood at 10:57 PM 7/21/2009
Modified by Z32 Ver.2ptGood at 10:58 PM 7/21/2009

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Steve Lloyd
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gs14racer wrote:I can tell you with my griffin radiator and my taurus fan, i cant even get the car over 160 degrees (after some abuse) it actually hovers around 130. i have to install a switch or thermo switch to cycle it because it runs like crap when cold lol
What's the model # of your Griffin???

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Z32 Ver.2ptGood
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Car: 90 Z32 N/A 2+2

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A question considering vh to z wiring harness,Near the end of the document in a section labeled "Other" there's a yellow/red wire. What am i supposed to do with that? That wire connects to a Black/Green wire off the F51 Connector, correct?

Also, a yellow/white wire from F51, something about extend Z wiring harness, can anybody help clarify for me?
Modified by Z32 Ver.2ptGood at 11:16 PM 8/9/2009


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