That's a really, really good idea -- yeah, if you can do that, a realtively simple controller could probably handle the VVEL actuation without actually uncracking the ECU for it.

Although if currently throttle control is essentially equivalent to VVEL timing, I wonder if you can simply tune by TPS adjustment and indirectly adjut VVEL that way.

And a twinscrew or standard roots blower on this car would be awesome :yum:

well we can forget about uprev developing anything more for us, they want to be given $30,000 to develop anything more than they already have, but they are looking at tuning the vvel just a little bit for there uprev flash tune in the future but they said they were backed up 2 years with other projects of that nature anyway so it could be awhile. for any kind of developed project like this they would need to sell a minimum of 100 units.

so basically anything i want to do i have to do myself.

Well, I appreciate all your work about trying to find viable solutions to exploit the potential of VVEL or to work around it. It is a shame that it is just so darn hard to crack though! If there was a real possibility that Uprev could find a way to add VVEL controlability, I would be down to pay for it considering it would cost roughly the same as a tune.

from what he said they have the ability to do it they just don't have the time or see the need for it. The work they said they were considering doing for it was going to be a retune, not giving you control over it. He did say they were going to look and see if the nismo tune had any differences in the vvel and that would be available.

They did seem like they were skirting the issue and trying to drown us out by saying it would cost them thirty grand, and he would need 10 cars given to him that he would be able to beat on and we would have to pay for any rebuilds or parts that broke, which would all have to be readily available. and when i told him i could get him one car (mine) he paused for about 10 seconds and then told me that he might have to have it for 6 months or more which i said was fine, and then he told me it could take years so i think they were just trying to shut me up and say they don't want to do it, without actually saying it. This kind of RD cost to me seems outrageous, given the nature of software development, and that is there is little to no capitol required to do it, he did make some valid points though that i see as problems and that would be volume of sales, the amount of gains being unkown, needing to have a vehicle to work on (I thought they were buying one weren't they?), needing a dyno to run it on (shame a tuning company that develops software doesn't have one of those), and his backlog of projects (which seems like a shortfalling of resources and manpower). I think it's unfortunate they aren't bigger and better equipped to handle some of the daunting projects they have available, They have a good product, and the ability to do it just not the resources a larger company would have that would make it possible and timely. It would be awesome if stillen or gtm or someone big like them could just suck up uprev in a corporate takeover and that would solve all our problems.

Ok there has been a shift in my plans, monetary situation permitting, tuning the vvel system and re-doing the throttle controls is going to come first as this is a qualifying step for future projects. This is mostly planned out already and as soon as i find a tunning solution cheaper than an $8,000 fully loaded motec unit with custom calibrations it will be a go. After that is done I'm going to decide wether to push forward with the heads or get my twinscrew on (which i have been lusting after for some time).

Call SAM Dammit!!! LMAO :tup:

UpRev tune does this :tup:

i called sam we talked, and decided it can be done with the motec, if i gave them my controls for the vvel actuators it could probably happen faster as they have all the motec stuff, but in the interest of availability I'm going to try and find a solution that can bring it down cheaper, with a different ecu.

(just thinking out loud) Since the VQ35HR heads aren't as beefed as the VQ37 heads. did you look in to the VR38DETT heads. do they bolt on our block? if yes! then we can use the VR38 ECU with AP, or Haltech.

I have to say, this stuff is too cool. Would this void the warranty?* :)

VR heads will not bolt to the VQ with out major work.

1slow370 .... looking forward to seeing what you come up with.

:iagree:

What a pity.

Same here. and good luck

thanks hopefully one of these days that i call haltec tech-service i'll get something other than voicemail

Are VHR heads THAT much superior over the HR in terms of strength? Why not just build an HR head with larger valves, cams, etc.?