HI PSI Member 1,586 Member For: 18y 6m 26d Gender: Male Location: Central Queensland Posted 23/04/16 08:30 AM Share Posted 23/04/16 08:30 AM I have recently been made aware, of the development of a new intake manifold for our beloved Barra's. Development is well advanced, with a 3D printing version (PLA) being scheduled for completion next week. This is to ensure correct fitment, prior to the first units being manufactured. Manufacturing will commence as soon as practicable... During my conversations with the developer, I managed to convinced him to do back to back testing of all the aftermarket (And standard FG) intake manifolds. Despite great costs involved, he has kindly offered to share the results with the community once completed. In saying that, he wants to ensure that the testing will result in accurate and irrefutable data. Currently, the following brands/models will be tested: Hypertune Plazmaman Race series Plazmaman XR6 plenum Process West plenum, and FG Xr6t plenum. * We would greatly appreciate a loan of a Nizpro manifold.. As we would like to add it to the list. If that helps ease the mind of potential sources, please know that I am loaning my Plazmaman race series plenum for testing.... To ensure accuracy, testing will be carried out on an engine dyno, as this will be easiest and fastest method of changing the manifolds. It will also ensure that there are no disputes regarding dyno ramp rates and ensure that tyre slippage is eliminated. A Motec EMS will be used, with EGT's fitted to each exhaust runner, to monitor individual cylinder temperature (All data logged). An air temperature sensor will be fitted to the cold side of the intercooler piping and logged. Cam, ignition advance and fuel pressure will be set and not modified for the duration of the testing (logged also). Boost will be gate pressure only. Given that each manifold will have varying efficiency, only the base fuel map will be modified to achieve the correct target AFR, for all manifold testing. Injectors will be batch fired with zero trim and other than some minor intercooler piping changes, nothing else will be changed....... All data will be logged, correlated and screenshots uploaded for all to see. We think that we have come up with a fair and unbiased testing methodology, but we would like input on areas that may be improved. 9 Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 29,043 Member For: 16y 8m 11d Gender: Male Location: Melbourne Posted 23/04/16 12:18 PM Share Posted 23/04/16 12:18 PM Love your work, Brad! Seems about as unbiased as it could possibly be. Good luck with it all Link to comment Share on other sites More sharing options...
gaz097 Bronze Donating Members 1,752 Member For: 13y 5m Posted 24/04/16 02:07 AM Share Posted 24/04/16 02:07 AM I'd like to see what the factory b series flows at as well 2 Link to comment Share on other sites More sharing options...
HI PSI Member 1,586 Member For: 18y 6m 26d Gender: Male Location: Central Queensland Posted 24/04/16 02:35 AM Author Share Posted 24/04/16 02:35 AM I doubt that the B series will be tested, as the FG is the better of the two... Link to comment Share on other sites More sharing options...
IT15ON Donating Members 83 Member For: 12y 11m 18d Gender: Male Location: Newcastle Posted 27/04/16 04:37 AM Share Posted 27/04/16 04:37 AM Sounds very interesting, good to get some proper numbers. If things change and interested in B series stock manifold for comparison I would offer mine up (located NSW?). It's just collecting dust. Link to comment Share on other sites More sharing options...
HI PSI Member 1,586 Member For: 18y 6m 26d Gender: Male Location: Central Queensland Posted 27/04/16 07:48 AM Author Share Posted 27/04/16 07:48 AM (edited) I am very interested in the results also. It will likely stir up a hornets nest though. that's why we wanted to allow people to view the methodology and request changes... Thanks for the offer, but I cannot foresee any changes to the current testing format. Edited 27/04/16 07:49 AM by HI PSI 1 Link to comment Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 16y 6m 20d Gender: Male Location: Adelaide Posted 27/04/16 08:49 AM Share Posted 27/04/16 08:49 AM Great idea but I feel you won't be embarking on the holly grail in this test as I believe all these aftermarket plenums have been tested enough to have a sufficient gain over stock flow and are probably all very close enough to each other. I don't think there will be anything greater than maximum 5% from the worst performing aftermarket item to the best performing I'd love to be wrong though I also feel the target boost needs to be at least 20psi and as far as you can go !! Link to comment Share on other sites More sharing options...
HI PSI Member 1,586 Member For: 18y 6m 26d Gender: Male Location: Central Queensland Posted 27/04/16 09:01 AM Author Share Posted 27/04/16 09:01 AM Exactly the kind of feedback that I was after... Thanks JET. We debated the boost parameters and we thought that by running gate pressure, that we would eliminate any preconceptions that the testing could be manipulated or tampered.. From what I gather, the test engine will be running a very big turbo, so your suggestion of more boost might highlight any abnormalities. Link to comment Share on other sites More sharing options...
gaz097 Bronze Donating Members 1,752 Member For: 13y 5m Posted 27/04/16 09:10 AM Share Posted 27/04/16 09:10 AM I vaguely remember reading on facey the other day that the process west favours the rear cylinder. Be interesting to see if this is true Link to comment Share on other sites More sharing options...
MattyP MattyP Cruise Control 6,317 Member For: 12y 7m 17d Gender: Male Location: Central Coast Posted 27/04/16 10:43 PM Share Posted 27/04/16 10:43 PM Alot of manifolds do tend to favor cylinders My stock celicas intake manifold favors cylinder 2+3 and 1+4 get left out Looking at the fg one im suprised it doesnt favor 3+4 Link to comment Share on other sites More sharing options...
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