Bakkums Posted June 3, 2017 Share Posted June 3, 2017 (edited) Hello people, I've got a non revup with Berk HFC and Blox plenum spacer (8mm cheap). Everything is fitted nicely and have no leaks. Now I have some MAF g/s log files and saw that the spacer didn't do anything. Can you confirm this that it isn't normal or is the bottleneck a standard air box and filter (most people upgrade air box and filter before anything else)? Please see also the attached graph. First run was stock, second with HFC (good improvement) third with spacer (no gains unfortunately). Thanks for the response. Edited June 4, 2017 by Bakkums Quote Link to comment Share on other sites More sharing options...
Bakkums Posted June 4, 2017 Author Share Posted June 4, 2017 (edited) Found the problem. Replaced the standard filter with a panty hose (just for testing) see results in the graph. Flow has increased with 16%, the bump in the middle is an bad AFR (way to lean). Edited June 4, 2017 by Bakkums Quote Link to comment Share on other sites More sharing options...
Jay84 Posted June 4, 2017 Share Posted June 4, 2017 Uprated panel filter next then pal. Quote Link to comment Share on other sites More sharing options...
Bakkums Posted June 4, 2017 Author Share Posted June 4, 2017 Looks like it, I'm going for the mishimoto air inlet. Thought it wasn't necessary after these 2 mods but looks like it will perform very well. After fitting some tuning with my uprev tuner Quote Link to comment Share on other sites More sharing options...
Jay84 Posted June 4, 2017 Share Posted June 4, 2017 Have You seen the velocity stacks for the non rev up DE's? That might give a bit more too. I've got a similar set up on my rev up, HFC'S plenum spacer and KnN panel filter. Quote Link to comment Share on other sites More sharing options...
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