malibud Posted September 23, 2015 Share Posted September 23, 2015 since you dont have a wideband I would check plugs, . get a fuel pressure tester either in line or harbor freight not expensive. are you using a rising rate regulator?. Can't remember but I assume you have checked compression ... Quote Link to comment Share on other sites More sharing options...
hwvigo Posted September 23, 2015 Author Share Posted September 23, 2015 I have a in line fuel pressure gauge on order should be here this weekend I hope, I am still on the stock regulator, and compression is good but could not hurt to check one more time. just because Datsun, and I am ordering a WbO2 today Quote Link to comment Share on other sites More sharing options...
hwvigo Posted September 24, 2015 Author Share Posted September 24, 2015 Ok I think I have found the causes.. 1. The waste-gate is messed, disconnected it and the car runs better. 2. The BOV is leaking when the the line from the intake is hooked up so I need a quality BOV. 3. Even with the waste-gate disconnected the car will not boost more then 8 psi I believe the turbo needs some love. Now on the plus side. 1. Fuel pressure is good but a touch high I believe 37@ idle and will just up to almost 50 while under load. 2. Car is a blast to drive even with with only 8 psi and a auto trans and compressor back feed when I let off the petal it sounds like a HKS ssq 3. I am going to get a the turbo upgraded to a T3T4 by AZ Turbo, and a new Turbosmart internal 10psi wastegate, and a new exhaust and new BOV. 4. I picked up a 5 speed Got the GoPro charging and I am going to shoot some vid later to show how the car is running now. Quote Link to comment Share on other sites More sharing options...
hwvigo Posted October 1, 2015 Author Share Posted October 1, 2015 Got some of my parts on order, Have any of you run a aftermarket wastegate on you stock turbo? I also ordered a now BOV.. And here are a few vids from the drag strip on Saturday night I figured the car was running better then it ever has why not take it out and see how much it has improved scene I picked it up. Best Pass: Me vs my friends 350Z .. we had the same trap speed yet he was a sec faster. Cant wait to get my new parts in and see if I can break 100mph and that 10psi wastegate should help. Quote Link to comment Share on other sites More sharing options...
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