turbobluestreak Posted August 11, 2006 Share Posted August 11, 2006 Guys I'm getting ready to do some research on intakes with soldworks's flowworks I've tested mine with disappoint that I've got a vortex that forms after the throttle body and sucks the air back out my t/b under 25psi of inlet pressure. I also tested a stock plenum with a bad result but I added the 60mm t/b and the spacer and WOW its a good flow and distribution. I'm asking everyone that has a custom intake for the L6 to send me dimensions of their intake and wall thickness and what t/b they are using and how it is orientated. I'll be conducting flow data on the plenums, runners and if anyone has one the ram pipes. Then I'll send each member’s flow data back in an avi movie for the trajectories and maybe some data sheet of the pressure drop and amount of flow and if the member is ok with sharing the results will be posted in this thread for everyone to use. Please PM me with your intake dimensions. tbs Quote Link to comment Share on other sites More sharing options...
Challenger Posted August 12, 2006 Share Posted August 12, 2006 Did you say the 60mm tb had better flow then stock, and is theyre anyway you could check flow with stock afm and boot that connects afm to the 60mm throttle body, I would like to know if overall the throttle body is an improvement in airflow. Thanks Quote Link to comment Share on other sites More sharing options...
turbobluestreak Posted August 12, 2006 Author Share Posted August 12, 2006 no the 60mm t/b and spacer caused a more laminar flow rather then the high turbulent flow that the stock produced. tbs Quote Link to comment Share on other sites More sharing options...
turbobluestreak Posted August 12, 2006 Author Share Posted August 12, 2006 just uploaded some avi files of some flow trajectories and cut plots. http://album.hybridz.org/showphoto.php?photo=8730&cat=509 stock intake flow trajectories http://album.hybridz.org/showphoto.php?photo=8731&cat=509 my intake flow trajectories http://album.hybridz.org/showphoto.php?photo=8732&cat=509 my intake vector cut plot 1 http://album.hybridz.org/showphoto.php?photo=8733&cat=509 my intake vector cut plot 2 tbs Quote Link to comment Share on other sites More sharing options...
mario_82_ZXT Posted August 12, 2006 Share Posted August 12, 2006 Can you host them on like google video or youtube? The hybridz servers are way too slow when it comes to video.... and I really want to see this. Thanks, Mario Quote Link to comment Share on other sites More sharing options...
slownrusty Posted August 12, 2006 Share Posted August 12, 2006 I can send you some dimensions of mine, it was designed and fabricated by JamieT and I can run up to a 95mm TB on it if I wanted, but will only run a 70mm! Yasin Quote Link to comment Share on other sites More sharing options...
turbobluestreak Posted August 12, 2006 Author Share Posted August 12, 2006 I've repost these vids on another server. http://www.needmoreboost.com/turbobluestreak/Cut_Plot_tbs_intake2.avi http://www.needmoreboost.com/turbobluestreak/Cut_Plot_tbs_intake.avi http://www.needmoreboost.com/turbobluestreak/Flow_Trajectories_my_intake1.avi http://www.needmoreboost.com/turbobluestreak/Flow_Trajectories_stock_intake.avi just right click and save target as. download speed should be faster let me know if this still doesn't work. tbs Quote Link to comment Share on other sites More sharing options...
Administrators RTz Posted August 13, 2006 Administrators Share Posted August 13, 2006 Guys I'm getting ready to do some research on intakes with soldworks's flowworks I've tested mine with disappoint that I've got a vortex that forms after the throttle body and sucks the air back out my t/b under 25psi of inlet pressure. TBS, The videos are very interesting... thanks for sharing. I am assuming you're modeling this as though all 6 valves are open and flowing continuously? If so, how much impact do you think there would be with the valves opening/closing (individually), causing there own reversion? Thanks again. Quote Link to comment Share on other sites More sharing options...
turbobluestreak Posted August 13, 2006 Author Share Posted August 13, 2006 I don't know rontyler I wish I did but as what I'm using now is to see how turblent the flow is in a large plenum and how its distrubuted and the mas ari outlet. I'm sure I can do something to figure that out for now I'm still learning about cfds tbs Quote Link to comment Share on other sites More sharing options...
Administrators RTz Posted August 13, 2006 Administrators Share Posted August 13, 2006 I'm sure I can do something to figure that out for now I'm still learning about cfds What are cfds? If its not too much trouble, I'd be interested in seeing a video of one port open at a time. Is it reasonable to 'cap' 5 runners? It seems this would be a better reflection of reality. Thanks. Quote Link to comment Share on other sites More sharing options...
turbobluestreak Posted August 13, 2006 Author Share Posted August 13, 2006 yah I can do that I'll get that posted by tomarrow night. a cdf is computational fluid dynamics. tbs Quote Link to comment Share on other sites More sharing options...
Guest ZFury Posted August 14, 2006 Share Posted August 14, 2006 :icon14:Those velocity stacks in there will help. Quote Link to comment Share on other sites More sharing options...
turbobluestreak Posted August 14, 2006 Author Share Posted August 14, 2006 I'm sure they will help but first the plenum needs to be resolved. I have a surface vector plot showing the air being pulled back out of the stacks because of the vortex. tbs Quote Link to comment Share on other sites More sharing options...
mario_82_ZXT Posted August 14, 2006 Share Posted August 14, 2006 Would it really be necessary to cap them? I'm wondering that if at WOT at a high rpm if there would really be a significant difference cause by the other valves being closed becaused they'd be closed for such a short time. (just thinking outloud) Mario Quote Link to comment Share on other sites More sharing options...
Administrators RTz Posted August 14, 2006 Administrators Share Posted August 14, 2006 Would it really be necessary to cap them? I'm wondering that if at WOT at a high rpm if there would really be a significant difference cause by the other valves being closed becaused they'd be closed for such a short time. (just thinking outloud) Mario Mario, I think even capping them would fall short of whats really happening. Keep in mind, every time a valve closes, it sends a pressure wave back up the runner. Theres only one valve open at any given time, so the 5 backwaves could have significant influence on whats happening in the plenum. Quote Link to comment Share on other sites More sharing options...
turbobluestreak Posted August 14, 2006 Author Share Posted August 14, 2006 I think your missing the high point of whats being analized in the videos. problems like a vortex or un equil plenum filling can be seen and corrected. Again the turbulent flow is not ideal for getting air in we need laminor flow and I know some turblence is good to keep the fuel mixed. This thread was my hope to help other L6 guys by analyzing there intakes and helping to correct any flow issues. tbsd Quote Link to comment Share on other sites More sharing options...
Administrators RTz Posted August 14, 2006 Administrators Share Posted August 14, 2006 I think your missing the high point of whats being analized in the videos. problems like a vortex or un equil plenum filling can be seen and corrected. I can only assume you're addressing me. I agree that you have an issue that needs resolution, but I also think its a terribly small representation of the big picture. I don't believe you can say that you have laminar flow or a propensity towards equal cylinder filling when your test's only show the static picture... too many other influences. No doubt, its a starting point and I appluad your efforts. However, once you show static flow to be acceptable... your work has only just begun. Of course, this is just my opinion... I could be wrong Quote Link to comment Share on other sites More sharing options...
Shadytrixta1 Posted August 15, 2006 Share Posted August 15, 2006 Since were on the intake manifold anyways.Our welder at the shop made this for an SR20DET I was gonna have him make one for an L28, What do you guys think? Quote Link to comment Share on other sites More sharing options...
Guest ZFury Posted August 16, 2006 Share Posted August 16, 2006 Is that aluminum and steel? Can you weld aluminum and steel together? Looks great! Quote Link to comment Share on other sites More sharing options...
Shadytrixta1 Posted August 16, 2006 Share Posted August 16, 2006 Its aluminum.I could go with a 90mm Q45 throttle body if i can figure out how to get it to work.Or should i just stick with the 240sx throttle body that i have? Quote Link to comment Share on other sites More sharing options...
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