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357rwhp 327rwtq @ 11psi (creep) Junk-yard 7m-gte /w MHG, H-trim/clipped CT26, RonR FFIM, NPR intercooler, VPC, 440's. https://lh6.googleusercontent.com/-vzo1TBkVN0M/T0rzE75IpxI/AAAAAAAAEGQ/xggV-fITcDo/s800/IMG_0907.JPG ...~40,000 miles on swap /w numerous track-days, unknown miles on motor...

Way to step up George. Phil, after just hanging out with you last weekend, this is just absolutely devastating news.... ...same setup here, with all profits of my w58 shift bushing kits sold being transfered directly to Phil. --billyM

Afternoon guys, someone pointed me this way to clear up some confusion. Moy, shaeff is right on the money. My kit INCLUDES the Marlin Crawler bushings! Why mess with perfection? I simply package them up with my bronze socket repair bushing to offer you a one-stop shop for w58 shifter...

...I don't doubt that people swore they had no problems with their VPC, just like the euro's pull EGR off their otherwise stock cars and say there is no draw-back. I bet you $$$ that those people who thought their cars ran just fine with a VPC and EGR did not persue perfection as hard as I, nor...

"Uh-oh guys, someone pointed out a well-written, researched, and data-backed exception to our egr rule." SHHHHHHH, maybe we can still be right in our suggestion that everyone use EGR (even that those with map-based standalones and piggybacks) if we just stay quiet till he leaves. Lets go post...

It is painfully obvious to me that you have no idea how the VPC works or what it does... (You show me how the VPC can tap an AFM signal with no AFM, and I'll give you $50.) Sadly, it negatively affects your entire approach to the problem. When you alter the manifold pressure on a VPC...

TCCS is tuned for EGR operation: YES, I agree with you. ...but I doubt EGR operation changes ANYTHING on the fuel mapping, flowing or not, just on the simple fact of how the system meters air. Got proof otherwise? Datalogs? Bin dumps? All the piggyback does is...: Again, I realize what...

I know full-well how the VPC operates and how and what it feeds the TCCS, so lets drop that. My can runs VERY well, I see exceptional mileage, and the ecu has to do minimal correction to maintain closed-loop operation. I run with an innovate wideband and datalog rpm, AFM signal, map, and...

...but the questions comes down to this: Is it better for the VPC setup to feed an incorrectly RICH reading to the ecu when the EGR is open than to do without EGR all together? --billyM

Ok ok, lets get this thread back on track... Figgie, Jdub, Jetjock, you guys know the mk3 ecu's far better than I, but look over this and tell me what you think... -------------------------------------------------------------------------------------------------------------------- Q...

87witmoreboost was right on the money on the last page... Your incessant ranting over theory, while correct (noone else is incorrect), is tiring. Consider me tired. People aren't going to get anything out of your method of "help" in this thread, and I won't waste my time playing your game...

...you sound like a chump, fresh out of a entry-level college chemistry or physics class. Infact, you're probably the asshole who argues with the teacher on, wait for it, symantecs as he's using non-standard methodology to help the class understand a difficult subject. So you have a solid...

I'll one up Rob's map, and I'll map out the pressure ratios on a t04e 60trim, that a 5m turbo will consume at ~350hp. The first map is at sea level, the second is at ~14k feet, or .6 atmospheres, as Rob has has used in his explaination. Temperatures are static, and I've not compensated for the...

...another simple thing that could cause lean running at idle is a vacuum leak. Have you pressure tested the whole intake? (I often overlook that, since I'm map-based... Vacuum leaks? Psh, I can run my car straight-throttlebody.) --BillyM

...mis-calibrated gauge? Longer opening-time on the 550's than stock? AFM signal (hz) is lower than it would like. --billyM

Typo on my part, I meant to say Volume x Density ...doesn't make you right though. Mass is the final result. Volume x Density. Density is a factor of Pressure & Temperature. <--there is where temperature went, it wasn't missing ...and the next person who says pressure-ratio doesn't...

...the gm 3-bar is a common VPC replacement in the DSM crowd. Hit a google search on it. Have you actually verified your map sensor is bad? --billyM

...similar voltage curve to the gm 3-bar. --billyM

Mass is the final number, presure x density = how many molecules... Figgie wrong, Grim right... --billyM

...any word on the compressor maps? --billyM