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Forced Induction Turbo, Supercharger, Methanol, Nitrous |
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01-08-2016, 11:46 PM | #15 |
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That's pretty typical behavior with those turbos, they have a really crappy IWG canister design. I've done dozens upon dozens of cars with those turbos and it's always the same story. When we put an EWG housing on it and run an external gate... no problem, and then the turbo is decent.
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01-09-2016, 03:45 AM | #16 | ||
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01-09-2016, 04:56 PM | #17 | |||
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Thanks again for everyone's input and advise. Its greatly appreciated. Sam
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01-09-2016, 06:36 PM | #18 |
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Your idle issues are because of that sharp angle right at the MAF sensor....
To really rule out the EBCS, you need to completely disconnect it from the system, and run a direct line of boost into the actuator. Th EBCS even if unpluggled will interfere with the boost signal unless completely bypassed from the system. Also, IWG systems are famous for boost tapering down at higher RPMs.
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01-09-2016, 09:24 PM | #19 | |
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Damn. Well, Im glad you posted because I really dont have the experience to have known that. From the updates the shop has given me, they worked out the idle issue. But the inconsistent boost engagement is what is slowing him down. Im hoping that boost control added after the fact will alleviate most of that boost droop at high RPM. Crossing my finders that the inconsistent boost in the dyno sheet I posted is direct result of a bad ECBS or recirc valve. Thanks for the input @Sportsguy83. I should have more data and information Monday. Hopefully a resolution and a well tuned car Because I'm still in a rental car. Sam @NahumCC Heres a shot of typical fitups.
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01-09-2016, 10:15 PM | #20 | |
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Good luck man, I hope it gets resolved rather easily.
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01-11-2016, 06:58 PM | #22 |
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So, tried to collect the car today but it isnt done yet. Still not tuned on E85. Still has weird boost building issues. They pulled the recirculation valve and everything looked fine. They hooked the wastegate actuator up directly to the compressor cover outlet but it didnt modify the behavior. They are getting more boost off the wastgate now though so thats good. It is hitting the 10psi (wastegate spring pressure, no boost control) and tapering down to 8psi near redline. It is putting down 300whp on 93 so I cant complain.
I suspect I have a vacuum line issue. My recirculation valve is seeing vac/boost from a tee fitting on the the brake booster. Which also has a tee fitting off of that branch for the AEM Failsafe. Which all of those lines are from previous projects. I bet a vacuum block and new reinforced silicone hose would make the recirc valve more consistent. Thats an obvious one to look at, right? Ill pick the car up kinda "as-is" for the time being. Ill have to schedule another day or two next month after I tinker around on it.
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01-11-2016, 07:57 PM | #23 |
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That's just normal with those IWG housings -- they are junk. I have dozens upon dozens of datalogs from dozens of customers with these turbos, looking like this boost curve.
We've put an EWG housing on the same turbo, no problem. lol |
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01-12-2016, 09:19 AM | #24 |
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This is the reason I ultimately shyed away from a Full-Race kit on my S2000. Too much fear of having no way to properly control boost with the twin scroll IWG.
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01-12-2016, 11:26 AM | #25 |
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This makes me sad.
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01-12-2016, 01:45 PM | #26 |
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You and me both. Being new to the world of FI. I thought the IWG EFR was the way to go since its an all-in-one packaage and thought I would actually save a bit of coin with less parts involved. wompwomp.
In all honesty, this isnt a race car, or a dyno queen. A few PSI off the top of the rev range isnt going to make much of a difference to me. I was able to walk a new M4 last month and thats all I need to be happy haha.
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01-12-2016, 02:30 PM | #27 | |
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Edit; just checked theyre all EWG lol
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01-12-2016, 02:33 PM | #28 |
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If this doesnt show up in "come race me bro" then ill be sad.
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