Power Limitations on Internally Stock VH45DE

Discuss topics related to the VH41DE, VH45DE, VK45DE, and VK56DE engines.
Jeff Taylor
Posts: 91
Joined: Tue Apr 04, 2006 3:50 am
Car: '96 240sx, VH45DET, 819wHP

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Oh yeah, and a lot of head scratching was done to find the MX constant or whatever variable was involved in syncing the Nissan CAS to the AEM EMS...but it works flawlessly now.


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Carl H
Posts: 6018
Joined: Mon Aug 04, 2003 4:09 am
Car: 1995 240SX SE RB30DET

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dunno about the newer VH cas sensors but you can dissassemble the older cas sensor and fit a trigger wheel instead of the high res cas wheel nissan uses.

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SSDwellah
Posts: 306
Joined: Tue Nov 12, 2002 9:45 pm
Car: '90 Z32 Coupe w/ VH45DE + 5-speed (FOR SALE)
'06 Infiniti G35 Coupe 6MT
'08 Frontier 4x4 SE KC

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Yeah that was actually mine. I haven't been on the forums much in the past year. I bought a G35 Coupe a couple years ago and haven't done much to it performance wise. I still have the VH45DE powered Z but it is running a chipped ECU from Wes. I never had the guts to fork out $1500 or 2K for the EMS and then figure out if it was going to work. When I compared the pinouts they were close (lots of them matched) but there were a few that were limited and of course there were only 6 sets of pins designated for injectors and coils on the AEM. Supposedly the others could be remapped in software. I think there was still one or two pins that would have to be rewired due to voltage or current limits.

I made a spreadsheet comparing the pinouts and I'll try to dig it up. It's probably on my old computer which is in disrepair right now waiting for a new power supply. I can't remember if I ever posted the spreadsheet here.

Jeff Taylor
Posts: 91
Joined: Tue Apr 04, 2006 3:50 am
Car: '96 240sx, VH45DET, 819wHP

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819 wHP / 727 wTQ all stock internals ($152 used 100k+ mile engine)

https://www.youtube.com/watch?v=EWbqrM5VTrY

Now for sale.


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