jackal8788

I can help you with some of that - PM will be sent shortly

Not sure if anyone remembers this post (from my original low power issues some 30+ pages back), but I took a datalog this morning on the same road and adjusted my Virtual Dyno settings back to what they were at the time of the original post just for relative comparison. Power for all tunes is likely reporting low due to the settings in VD I had at the time and the road where I do these pulls, which is a mild uphill. You can see that the 18G/EWG combo is putting down more power than the 20G/IWG combo at 2 less PSI (peak). The orange graph is from when I was on the stock turbo, 93 octane and a Logan McDowell tune. One thing to note is that from this, the 18G spool would appear to be slower than the 20G - this is not so. The reason is that I didn't go WOT as quickly today as I did with the other logs so I'll try to catch one where I drop it right at 2000 RPM instead of closer to 2900.

That it is. And it was ported when I owned it.

What gear did you do the pull in? Your best chance of overboosting will be in higher gears. I wouldn't personally go WOT in 6th or probably even 5th at low RPM, but a 4th gear pull might get you to spike a little bit if you were doing your previous pull in a lower gear.

http://legacygt.com/forums/showpost.php?p=5384491&postcount=21565

Thanks for the response here and in the Primitive thread. If you're not having any issues, I may also just try running it with no extra hole cut for the wastegate dump. One less opening in that plate just means more protection for all the goodies above it.

You're correct - there isn't on the V2 so unless you have a separate boost gauge, a log is the only way to go.

If you're on a Cobb OTS Stage 2 map, the max peak boost is 17.5 PSI for 93 octane and 16 for 91 octane. If you're on a custom map, better ask your tuner

I will be ordering one in about an hour [emoji3]

One aspect about Dreizehn is that he's at altitude so overboost would be much less likely. Sent from my iPhone using Tapatalk

Yeah, I'm going to call them when they open in a few hours to discuss but I think I'll be ordering one today.

As of right now, I do not. We are going to put a dump tube on the wastegate outlet in a couple days and depending on how that looks, I was thinking about trying to cut out a portion of the undertray. If that doesn't work, I will probably buy a Primative plate and cut out an area for the dump tube to exit. Any thoughts on either of these plans?

When you say this (that it won't boost past WG unless the EBCS is working properly), that's true, but with the caveat that your wastegate is capable of managing the exhaust flow. If it can't, you'll continue to build boost well beyond the WG spring setting simply because the exhaust flow is not able to be diverted from the turbine.

Porting will not impact you negatively going back to stock. The WGDC may need some minor adjustment. Worst thing that would happen is you might slightly undershoot the boost targets if you flashed a stock map but even then it's unlikely.

Okay fellas, here's a link to a pull I did last night. This is with my windows down at ~3/4 throttle. I can try to get better clips as well but it's a start:

Anyone know if I can actually upload a sound file on here? I just made a quick recording with my phone.

I'm really surprised to hear about your overboosting because as noted here, we ported the sh*t out of that wastegate and for quite awhile I was able to hold 23.5 PSI with no problem. Were you able to apply air pressure directly to the diaphragm housing to make sure the actuator can fully extend without interference on any other brackets or flanges? I had interference issues with a bracket and my downpipe flange that needed to be addressed to allow full extension of the actuator.

As Ellesedil noted about my other post, porting would be the best route in terms of not building excess inefficiency (turbulence) into your exhaust. However, if that's not an option for you, then you would have to look at other options to introduce restriction (stock midpipe, welding a reduced-diameter resonator in your new midpipe, adding a simple restrictor plate like I did).

Welcome and congrats! When/if you do your full TBE, hold on to all your old stock parts. You may be one of the elite group who experiences overboost or boost creep when going with the full TBE unless you port your wastegate at the same time. There is another new member on here who recently did the same thing and he is getting 22 PSI spikes in a map with the WGDC set to 0. Certainly don't mean to scare you away from making the change, but just be prepared and take that first test drive with a lighter foot until you know how the car will respond.

Let me see if I can get something on my ride home tonight. As for powder coating, do you mean on the actual valve housing itself? If so, I don't think it's necessary, at least if you buy a true TiAL product and not a knockoff. They use 347 stainless steel for the valve housing, which is very corrosion-resistant. Power coating typically isn't recommend for applications higher than ~400F - I'm guessing you meant ceramic coating?

In case anyone was wondering, I haven't been on the dyno with this yet - not sure when that will happen. For the time being, my tuner is dialing things in with my datalogs. My impressions thus far: - 18G spools up nicely. Definitely quicker than the 20G - EWG is LOUD!! Holy F! However, it's also still at the point of being fun and amusing rather than obnoxious (at least to me. Claim doesn't apply to other motorists, bystanders, passengers, etc.). Don't know how long that will last, but it's a blast right now - The exhaust note while cruising or at lighter throttle is very similar to what it was with the stock header. It definitely does not have an unequal-length rumble or anything like that. It's maybe a little throatier but overall not much different - I get the feeling this turbo would sound pretty sweet when it really starts spooling but all I can hear is the EWG belching burned corn so that will remain a mystery to me I'm currently at about 20 PSI and we are working the boost up incrementally so another couple revisions should get it pretty much finished off. Overall, I am absolutely thrilled to have the car at this state and to not be diagnosing an issue or waiting on parts. I have no doubt my little saga will continue here, but I'm crossing my fingers that we don't have any major plot twists for awhile now

It is done....

With a memory like that I may have to start calling you ZTEASER

I think 5 or 10 years ago I probably would've been. I had to remind myself that it took me 29 years to acquire a fifth gen LGT so what's a few weeks here or there to give it a little TLC? PS - do you have any larger shots of your car on here? It looks pretty mean from what I can glean in that Wheat Thin-sized avatar pic.

I think the coating does mask a lot but of course, they had the thing for 10 weeks so maybe each week they gave the welds a small buff with emery cloth