Will VVEL position "stay" with no power?

Def · 01-17-2017, 12:57 PM

If I go with a VQ37VHR I'd eventually get some level of VVEL control. Probably moving it in a few discrete stages to simplify things, but it shouldn't be too hard since it's just a DC motor. I guess a mechanical lock wouldn't be too hard to fab up if it didn't stay in one place...

As for a VQ35DE - there are newer Maxima engines which are basically VQ35DE bottom ends with VQ35HR heads and a single DBW TB. They make decent power, but being a VQ35DE bottom end they don't like to rev very high, so even with replacing the rod bolts with ARPs and the oil pump with a Rev up (which combined costs like $400), it's probably pushing it to expect more than 7200-7400 RPM out of it for track usage.

Whereas a VQ37VHR can do 7.8-8k RPM right out of the box, and has more displacement... It'd be impossible to make the same power on the DE bottom end engine even though it can flow. It just can't do the revs needed.

That said, the FWD engine is more "bolt-in" and go with Nissan components, so less hassle to get it up and going. It just probably won't ever make more than about 310-320 rwhp. Which sounds impressive to you guys, but keep in mind that's going through a FWD transmission, so probably like a minor bolt-on VQ37VHR putting out maybe 290-300 rwhp.

Both engines are about the same cost as well...

As for the build, I'll definitely make a build thread on Midlana – Build a mid-engine Seven using a FWD drivetrain

Here's a pic of the builder's Midlana:

He used a turbo K24 Honda engine, but honestly, I've done the turbo 4 thing and would like to do a VQ. I'd really like to get curb weight below 1650 lbs wet. Not sure that's doable with the VQ, but I'll sure try...

Hmmm, I keep going back and forth on the FWD easy VQ route vs. harder RWD VQ route. I know the RWD VQ route has more power potential, and I definitely will not want to change things after the fact (engine mounts are in different locations for one!), but there are more unknowns and more work getting the RWD VQ to go.

Thanks for the responses guys. I was hoping that maybe I'd get lucky and someone has tested this for the hell of it.

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01-17-2017, 12:57 PM	#1 (permalink)
Def Base Member Join Date: Jan 2017 Location: Texas Posts: 8 Drives: S13 Track Car Rep Power: 9	If I go with a VQ37VHR I'd eventually get some level of VVEL control. Probably moving it in a few discrete stages to simplify things, but it shouldn't be too hard since it's just a DC motor. I guess a mechanical lock wouldn't be too hard to fab up if it didn't stay in one place... As for a VQ35DE - there are newer Maxima engines which are basically VQ35DE bottom ends with VQ35HR heads and a single DBW TB. They make decent power, but being a VQ35DE bottom end they don't like to rev very high, so even with replacing the rod bolts with ARPs and the oil pump with a Rev up (which combined costs like $400), it's probably pushing it to expect more than 7200-7400 RPM out of it for track usage. Whereas a VQ37VHR can do 7.8-8k RPM right out of the box, and has more displacement... It'd be impossible to make the same power on the DE bottom end engine even though it can flow. It just can't do the revs needed. That said, the FWD engine is more "bolt-in" and go with Nissan components, so less hassle to get it up and going. It just probably won't ever make more than about 310-320 rwhp. Which sounds impressive to you guys, but keep in mind that's going through a FWD transmission, so probably like a minor bolt-on VQ37VHR putting out maybe 290-300 rwhp. Both engines are about the same cost as well... As for the build, I'll definitely make a build thread on Midlana – Build a mid-engine Seven using a FWD drivetrain Here's a pic of the builder's Midlana: He used a turbo K24 Honda engine, but honestly, I've done the turbo 4 thing and would like to do a VQ. I'd really like to get curb weight below 1650 lbs wet. Not sure that's doable with the VQ, but I'll sure try... Hmmm, I keep going back and forth on the FWD easy VQ route vs. harder RWD VQ route. I know the RWD VQ route has more power potential, and I definitely will not want to change things after the fact (engine mounts are in different locations for one!), but there are more unknowns and more work getting the RWD VQ to go. Thanks for the responses guys. I was hoping that maybe I'd get lucky and someone has tested this for the hell of it.