SomeZero Posted August 11, 2014 Share Posted August 11, 2014 Hmm sounds like a spring issue you are still internal gate right? Link to comment Share on other sites More sharing options...
jackal8788 Posted August 11, 2014 Author Share Posted August 11, 2014 Yep, still internal. VF54 to 20G to VF54 to 18G build thread Link to comment Share on other sites More sharing options...
McDowell Performance Tunin Posted August 11, 2014 Share Posted August 11, 2014 (edited) With e85 and a 20g, you're going to have a hard time not over boosting. Especially if you're not running any wgdc and still hitting 19psi. I take it you are still on the stock BCS? I didn't see a 3 port in your build list. I would remove the restrictor pill until you get a 3 port. Should prevent you from over boosting. Edited August 11, 2014 by McDowell Performance Tuning www.facebook.com/mcdowelltuning [sIGPIC][/sIGPIC] Click Here for Stage1, Stage2 and Stage3 Tuning and eTuning Info Link to comment Share on other sites More sharing options...
jackal8788 Posted August 11, 2014 Author Share Posted August 11, 2014 Thanks Logan. I'll try that as well. You're right - I don't currently have an EBCS. I know that Cobb and Grimmspeed both make a version for the Mazdaspeed3 that have the same connector. Does anyone know if either unit will actually mount in the same location as the stock BCS or do they both require some remote mounting and plumbing? VF54 to 20G to VF54 to 18G build thread Link to comment Share on other sites More sharing options...
SomeZero Posted August 11, 2014 Share Posted August 11, 2014 I am on an HOA EBCS cheap and they do the trick Link to comment Share on other sites More sharing options...
jackal8788 Posted August 11, 2014 Author Share Posted August 11, 2014 Thanks SomeZero. Is it a the bolt up or does it need a different connector or mounting? VF54 to 20G to VF54 to 18G build thread Link to comment Share on other sites More sharing options...
SomeZero Posted August 11, 2014 Share Posted August 11, 2014 pretty sure was just a swap in, it took them less that 15 minutes to put it in. But it was over a year ago they dropped it in so I am a bit fuzzy. Link to comment Share on other sites More sharing options...
McDowell Performance Tunin Posted August 11, 2014 Share Posted August 11, 2014 They don't mount to the standard location, unfortunately. I know people have pictures of their mounting locations, but each is custom, IIRC. www.facebook.com/mcdowelltuning [sIGPIC][/sIGPIC] Click Here for Stage1, Stage2 and Stage3 Tuning and eTuning Info Link to comment Share on other sites More sharing options...
jackal8788 Posted August 11, 2014 Author Share Posted August 11, 2014 Thanks for the input guys! VF54 to 20G to VF54 to 18G build thread Link to comment Share on other sites More sharing options...
jackal8788 Posted August 12, 2014 Author Share Posted August 12, 2014 Found the issue. The WG actuator rod was actually hitting a bracket and not able to open fully. Trimmed the rod back and now boost is 14.8 PSI. T minus 2 days..... VF54 to 20G to VF54 to 18G build thread Link to comment Share on other sites More sharing options...
ebo03 Posted August 14, 2014 Share Posted August 14, 2014 Subscribed. Link to comment Share on other sites More sharing options...
jackal8788 Posted August 14, 2014 Author Share Posted August 14, 2014 Should be on the dyno in about 2 hours. Keeping my fingers crossed that all goes well! VF54 to 20G to VF54 to 18G build thread Link to comment Share on other sites More sharing options...
s2baru Posted August 14, 2014 Share Posted August 14, 2014 Good luck! Always exciting to see things come full circle Link to comment Share on other sites More sharing options...
jackal8788 Posted August 14, 2014 Author Share Posted August 14, 2014 Thanks! It's up on the dyno now so if it doesn't fall off or blow up just give up, should have something to post in a couple hours. It is a Dynojet so I anticipate a flood of re-grounding comments to bring me back down to earth if the numbers look good As a sidenote, I will try to see if they have any stock pulls for a WRX or STi as a reference point. They certainly won't have any 5th gens! VF54 to 20G to VF54 to 18G build thread Link to comment Share on other sites More sharing options...
jackal8788 Posted August 14, 2014 Author Share Posted August 14, 2014 Last pull here was 339/384. He is going to tweak the peak torque down just a bit, but this should be pretty close to the final numbers. I will post the dyno sheet a little later. I believe this was at 23.5 PSI peak boost tapering down to 18 but the plot only had AFR, no boost. Should be a fun way to get groceries! VF54 to 20G to VF54 to 18G build thread Link to comment Share on other sites More sharing options...
minuccims Posted August 15, 2014 Share Posted August 15, 2014 Do you have previous plots on the same dyno to document your gains? Link to comment Share on other sites More sharing options...
jackal8788 Posted August 15, 2014 Author Share Posted August 15, 2014 Unfortunately, the only other run I have on this dyno was a 7 PSI pull where I put down 207/221. This was from early June and when we tried to do the tune my WG duty solenoid died and we could only make wastegate spring pressure. I had to pull the car down and order a solenoid. There were a few other setbacks over the last couple months with the dyno losing their computer and being down a couple weeks so that was the time when I decided to get the larger turbo. I do have some data logs from my Stage 2 McDowell tune and I plan to make a couple test runs on the same road with this tune and load them in Virtual Dyno. I realize it isn't without sources of error, but it would give a way to see some relative gains from a tuned stage 2 on 93 octane to the 20G on e85. VF54 to 20G to VF54 to 18G build thread Link to comment Share on other sites More sharing options...
jackal8788 Posted August 15, 2014 Author Share Posted August 15, 2014 (edited) On a fun sidenote, I happened to be driving home from the dyno tonight and lined up next to a C5 Corvette. We had a nice roll from 0 - 70 or so where he spent a good deal of time in my rearview trying to figure out what was going on....that was a happy moment! Edited August 15, 2014 by jackal8788 VF54 to 20G to VF54 to 18G build thread Link to comment Share on other sites More sharing options...
jackal8788 Posted August 15, 2014 Author Share Posted August 15, 2014 Final graph (sorry for the quality. I just took a pic as opposed to scanning it): VF54 to 20G to VF54 to 18G build thread Link to comment Share on other sites More sharing options...
jackal8788 Posted August 21, 2014 Author Share Posted August 21, 2014 Just an observation - this turbo seems to hit its peak boost around 3400 RPMs. My stock VF54 was peaking around 2800. This setup doesn't provide quite as much of an initial 'punch' as stock, but it just continues to pull very hard well beyond the point where my stock turbo ran out of breath. VF54 to 20G to VF54 to 18G build thread Link to comment Share on other sites More sharing options...
acumenhokie Posted August 21, 2014 Share Posted August 21, 2014 Just an observation - this turbo seems to hit its peak boost around 3400 RPMs. My stock VF54 was peaking around 2800. This setup doesn't provide quite as much of an initial 'punch' as stock, but it just continues to pull very hard well beyond the point where my stock turbo ran out of breath. Sounds about right. Takes more time to spool up the larger turbine/compressor. Link to comment Share on other sites More sharing options...
DeltaSniper Posted August 21, 2014 Share Posted August 21, 2014 Any comparison dyno numbers? Link to comment Share on other sites More sharing options...
jackal8788 Posted August 21, 2014 Author Share Posted August 21, 2014 Unfortunately I don't (see post 42 for more detail). IIRC when I was looking through their log of tunes, there was a 2011 WRX on this dyno that put down around 220ish stock but that's really the only baseline I have. VF54 to 20G to VF54 to 18G build thread Link to comment Share on other sites More sharing options...
jackal8788 Posted September 18, 2014 Author Share Posted September 18, 2014 Adding a link the a video of one of the dyno pulls: https://www.youtube.com/watch?v=kWEK-AGnow0&feature=youtu.be VF54 to 20G to VF54 to 18G build thread Link to comment Share on other sites More sharing options...
McDowell Performance Tunin Posted September 18, 2014 Share Posted September 18, 2014 Nice. What boost target are you hitting? www.facebook.com/mcdowelltuning [sIGPIC][/sIGPIC] Click Here for Stage1, Stage2 and Stage3 Tuning and eTuning Info Link to comment Share on other sites More sharing options...
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