Accurate Injection Posted July 11, 2008 Share Posted July 11, 2008 VQ35 ITB Set-up is about to Enter the Testing phase! Stay Tuned! Kevin Quote Link to comment Share on other sites More sharing options...
Evan Purple240zt Posted July 11, 2008 Share Posted July 11, 2008 Beautiful, I love these posts. Evan Quote Link to comment Share on other sites More sharing options...
Gollum Posted July 11, 2008 Share Posted July 11, 2008 I'd hate to sound negative at all, because those are dead sexy... But do you have a weight comparison versus the stock setup? I'd imagine it's heavier, but by how much? Quote Link to comment Share on other sites More sharing options...
Accurate Injection Posted July 11, 2008 Author Share Posted July 11, 2008 Sometimes looks can be deceiving! Just the Lower portion of the Plenum weighs 11.5lbs, with the upper plenum that weighs that much or MORE, Thottle Body added to it as well! Estimated at 25lbs Maybe? The Entire ITB set-up only weighs 19lbs! That includes from the Filters to the Heads! We May go with a CAST upper manifold for the Production units not sure yet, which will add weight for sure, but I believe it will be close to stock weight or less! Kevin Quote Link to comment Share on other sites More sharing options...
240hoke Posted July 11, 2008 Share Posted July 11, 2008 mmmm mmmmmmmmmmmmmmmmmmmmmmmmmmmm Quote Link to comment Share on other sites More sharing options...
Pete84 Posted July 12, 2008 Share Posted July 12, 2008 AWESOME! How much better to the ITBs flow than the stock intake? Kinda curious, looks like there is ALOT less resistance. How do you meter the air? Speed density, mass air flow . . . ? Quote Link to comment Share on other sites More sharing options...
Accurate Injection Posted July 12, 2008 Author Share Posted July 12, 2008 All Good Questions that will be hopefully answerd soon enough, in the process trying to figure out if we can adapt the stock Stepper motor to control the throttle acuation. In the pictures above the throttle is cable acuated or controlled. It will first be installed/converted to Speed Density, with a piggy back controler, then complete Stand alone will be installed! Kevin Quote Link to comment Share on other sites More sharing options...
Careless Posted July 14, 2008 Share Posted July 14, 2008 what's your mailing address… …i'm sending you an invoice for a new pair of undies Quote Link to comment Share on other sites More sharing options...
Accurate Injection Posted July 14, 2008 Author Share Posted July 14, 2008 Hahahaha! I will post some Port Photo's Later today for those to see the port work! Kevin Quote Link to comment Share on other sites More sharing options...
Accurate Injection Posted July 14, 2008 Author Share Posted July 14, 2008 The Light area in the photo below is just a reflection off the Lower Manifold Port Walls. The Upper and Lower Manifolds Mate Perfectly, as with the ITB Plate to Manifold Port Matches up perfectly as well. What you can't see or can Barely see is the Manifold Runners are Completely Swirl Polished to aid in Air Flow! Kevin Quote Link to comment Share on other sites More sharing options...
240hoke Posted July 14, 2008 Share Posted July 14, 2008 If you could get the DBW motor to correctly operate the throttle linkage you would have a set sold to me.... and probably a ton of them to 350z guys. I wouldnt think it would be that hard but I guess liability is the bigger issue. Keep us updated! Quote Link to comment Share on other sites More sharing options...
Accurate Injection Posted July 14, 2008 Author Share Posted July 14, 2008 You are correct on the Liability situation! I have my Soap Box handy for this subject, but had rather leave it in the Closet for the time Being! The TEST bed will be Cable operated First! The biggest problem is the resistance of 6 throttle plates compared to just 1. Mechanically coupling the Stepper Motor to the Pivot shaft is not hard to do! Manipulating the 0 and 100 percent "Step" positions may be a different task entirely, but some Piggy Back software/hardware out there will allow a certain amount manipulation with regards to those VALUES! We are working on it! Kevin Quote Link to comment Share on other sites More sharing options...
Careless Posted July 23, 2008 Share Posted July 23, 2008 so you would have to construct a circuit take the output voltage of the DBW system and multiply or divide it as a correction factor for proper stock ECU operation? or is there a certain type of signal besides a linear voltage that controls the throttle position? (does DBW have throttle position integrated, or no?) Quote Link to comment Share on other sites More sharing options...
Accurate Injection Posted July 23, 2008 Author Share Posted July 23, 2008 Careless: All Good Questions I simply do not know the Answer to! A Dealer of ours who is a 350Z Specialist is doing the install and conversion! I will have a DBW throttle Body tomorrow and will know more about how hard it is to Adapt the Stock DBW Motor to the Pivot Shaft. As it is now if someone were installing it in a different chassis with Stand Alone it would be good to go! Kevin Quote Link to comment Share on other sites More sharing options...
Accurate Injection Posted July 26, 2008 Author Share Posted July 26, 2008 http://vids.myspace.com/index.cfm?fuseaction=vids.individual&videoid=39288114 Video of the Drive By Wire Mechanism, it has a little more resistance than the stock TB Return Springs, but not much! Actually the Stock Return Springs are really heavy! No Elevator Music jokes please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Yes I know it's not Pretty, but it's good enough to Test without CNCing a new Housing! CNCing a new Housing can shrink the SIZE in Half, and make it much better looking, this will hopefully give us great insight into DBW SET-UP and open the Door for other DBW set-ups! This will make it easier to install in the 350Z Chassis! Cable acuation is done! Kevin Quote Link to comment Share on other sites More sharing options...
drwharton85 Posted July 26, 2008 Share Posted July 26, 2008 How much is this setup? Quote Link to comment Share on other sites More sharing options...
Accurate Injection Posted July 26, 2008 Author Share Posted July 26, 2008 Well we are not that far along yet, but it will be on Par price wise with the rest of our Products! www.extrudabody.biz Hopefully the DBW will work out as planned and a simple CNC housing can be intregrated into the mix. The car is running Turbo XS ECU presently, and will be converted to MAP sensor control, instead of MAF! Kevin Quote Link to comment Share on other sites More sharing options...
Pete84 Posted July 27, 2008 Share Posted July 27, 2008 Given that you have been working with the intake for a while, what are your impressions of the lower intake plenum? Does it flow well enough for a N/A engine, or would it benefit from porting? Is the "testing phase" going to include flow numbers, both stock and ITB? This sure looks good !!! Quote Link to comment Share on other sites More sharing options...
Tony D Posted July 27, 2008 Share Posted July 27, 2008 When will we hear it run? Quote Link to comment Share on other sites More sharing options...
Accurate Injection Posted July 28, 2008 Author Share Posted July 28, 2008 Hey Pete: Thanks for the Kind Words! Flow numbers it will not include, but before and After hp/tq will be posted, which may or may not help those with a bone stock motor. The motor this is being installed on belongs to one of our Dealers, and is not a Stock motor, but a ground up build, with cams, and other bits in the motor. Tony: That is all up to the Dealer that's doing the install/tune/results. Kevin Quote Link to comment Share on other sites More sharing options...
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