nice...

After looking at your graphs I still think the Lite will be for me

Power is still climbing at 8k with your setup, and since I don't plan to rev to 8k (without a beefy build) then it makes sense to move the power band lower down the rev range - which is what the Lite should definitely do

 

Very nice!

My BBX Lite is sitting on my desk waiting to go in.

- Bryan

 

Yeah, I think the lite would be what I would want. Scared to rev this engine to 8k fully stock. Gains insane considering stock fuel system and no tuning!

 

Bryan - thats good news!

Means we will finally get some reliable/measurable results

 

You know, I *really* thought about trying out the BBX Lite, it seems a lot more inline with the original BBK Full for the evo8/9. I had one, and I *absolutely loved* it. BUT, from day one, I kept bugging chad, 'you sure you don't have one that's a *little* bit bigger?' ...Chad kinda drilled me on being *super* honest about how I liked this BBX because I raved about the BBK so much. I like that about Chad@CBRD, he wants to sell you what he thinks you'll ultimately like best. Not about the peak numbers, not really about the money, about me, the customer. Wow.

I had an absolute blast with my BBK Full, 385whp on pump are you kidding me? 430 on alky? woot! Supercharged cts-v's, gsxr750's, even hung with an R1 w/ a rider once. Freaking owned and had fantastic response through the midrange. ...But still I was set on upgrading to the BBK-B whenever I could get my hands on one. The thought of dumbing down my setup a bit, possibly ditching the alky and sticking with just pump but still making big power up top, this really intrigued me. But I digress. BBX is legit, but the BBX Lite will be a fantastic turbo for a lot of people! I hope I love the BBX Full enough, if not, I would certainly consider going down a step in size.

Do it to it big boy! Can't wait to see what this thing will do on a properly setup ralliart

What's with people being afraid of 8k? Man up boys I have friends running their IX's to 8500rpm with cams on stock valvesprings. That's badass, I feel raising the rev limiter 400rpm is no big deal; I'll really only rev that high if I'm really on it: at the track, wompin some **** on the street, or late for work

 

I would still like a break down of changes between stock -> BBX-Lite -> BBX... in terms of wheel changes that is

 

The 4B11 might have a more favorable rod:stroke ratio, but it ain't no 4G63 tank. Two years in, I still don't have the faith in this engine. I think beyond 350whp Dyno Dynamics reliability becomes Russian Roulette. I've seen a couple pulling clean with no knock let go stock internals (One Dom2, one FP Red) at 8000rpm.

 

Right, but were those cars logging when that failure occurred? Who knows how much they were knocking, despite the quality of the tune. I firmly believe having tephra's KnockCEL available now will save more than a couple engines from the same fate as the ones mentioned above.

 

I think the 4b11 is pretty solid, but I would say the safe power levels are higher than 350whp...maybe 380-400whp.

It's always a crap shoot though...and I agree with Scheides, knock CEL will help tons.

 

I wrote "pulled clean with no knock" to imply they were being logged when they failed. Sorry if I was a little too vague. Both were logged all the time, one failed on the dyno, pull was clean as a whistle other than a couple 2 counts down low, fueling conservative, 25psi on 93 tapering to 22psi, spun to 7902rpm on the logger and blew up top. Professionally tuned, engine just couldn't take it over 5 months of that turbo, boost, and RPM use, 360whp Dyno Dynamics, around 405whp Dynojet.

I'm not saying they will all fail, but based on what I had seen at the shop, I have a little more faith in the 4G63 at that power level.

That said, don't listen to me, I know Bryan from GST has tuned a ton of 4B11s, and I don't know of him losing even one yet. YMMV, I am just telling you why I am a chicken.

 

I got the stock injectors out and the part number on the side of them suggests that they are in fact 600's, which actually seems about right. 600/560=1.07. IX 560s could support about 315whp when really maxed out, add 7% and you get about 340, right where we're at.

DW800's are in, I'm playing around with a few sets of latencies published on the internet to see what's best to start from. Even just bumping the scaling and not touching the latencies the starts and drives pretty damn good!

 

yeah I reckon 600's as well!

 

MAN this turbo is really fun! So much smoother down low but still plenty of airflow to do a top-gear pass if you want to. Car just wants to rev rev rev, more rpm = more power, it's like driving an nsx or a supercharged M3! There is no real 'hit' when you come into boost, onset is slowed just enough to make the car SUPER linear, and transient boost between gears is still damn quick. I can't wait to get tuned and *gasp* get more supporting mods on this thing!

 

Not much of an update, but shortly after installing the BBX and posting the other plot I tweaked the timing maps slightly and installed the dw800's. I did a few VDR runs and peak power is anywhere from 328-340 depending on the run. It's not perfect but way better than before. Here's an idea of what it looks like compared to the stock turbo setup:



I ran the car HARD at the autoX test & tune on sunday. 115° ambient heat and I was revving it like a ****. I got 21 runs in and all but the first on each course were pretty aggressive. Very little knock except for bouncing off the rev limiter @8000rpm in 1st gear, I over revved to 8159rpm oops!

Here's some logs from the standalone logger, kinda shows timing, peaking at 14° at 7000rpm and steady to 8000.

http://scheides.com/misc/pics/evox/l...m-EvoX-BBX.xls

The car needs some tuning, but first it needs a downpipe. The stock downpipe is still on the car as well as the stock o2 housing and I now know that it really just makes this a laggy setup. Not aweful it is damn smooth and you can see the gains from the new turbo are there, but alas, like everyone else, I want more I'm shopping around, rexpeed, MAP o2 elim, AMS, lots of nice downpipes out there but ******* the audi prices. I had dreams of a nice AMS or MAP unit ceramic coated but my damn bang/buck concience keeps kicking in (call it my DSMStyle?) and for $210 shipped I can get a taiwaneese Rexpeed unit that is full 3" all the way to the test pipe.

I was going to get tuned before/after the downpipe/ported manifold but I realize now that its silly. I want to get fully tuned by shane AFTER I get the downpipe on, the stock one is just a silly restriction at this point and tuning it will be semi frivolous.

I had a dream last night that I had rod knock and there was white coolant smoke billowing out from the engine bay. Yeow. Nothing to do now but keep moving forward!

 

You need to be pumping some more timing in....

We found that the Green really allows/requires more timing over stock, so I guess thats the same as with the BBX...