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  1. Z

    Sleeper buiild thread: KISS edition

    http://i425.photobucket.com/albums/pp337/ZephTheChef/0601171926.jpg + https://shop.precisionturbo.net/index.php/discounted-overstock-new-and-remanufactured-sale-turbochargers/pt6466-bb-turbo-remanufactured.html = ??????
  2. Z

    Anyone got ideas for a cheap or DIY vacuum regulator?

    Ok, so let me start off by saying that I'm not trying to be shady and hide problems here. I deal with a very low income, high-risk customer and need to perform repairs as cheaply as possible in order to keep things within their budget otherwise they're walking (literally). The backstory is that...
  3. Z

    Undersized turbo/pre-turbo nitrous injection gains?

    Totally don't know why I'm posting this in 3800 land. Just because that's where things go, I guess. So I've been doing the usual over-thinking/math about increasing mass flow through a turbo(s) at the limit of what the turbo will deliver. Specifically, trying to figure out how much more I...
  4. Z

    Focus ST turbos as twins. What do you think?

    Like the title says. I'm not going to spend too much time talking them up, but let's just cover the basics. It's a 290whp ball bearing turbo with integrated BOV and wastegate and water cooling. I just bought one with 7,000 miles on it for $200. Who else thinks these would make great...
  5. Z

    Easy A/C compressor overdrive!

    Hey guys, I thought I'd just chime in about a discovery I made. I had been looking for ways to get more performance out of my A/C chiller setup, and was looking into options for possibly overdriving the A/C compressor and came across a perfect match for what I was trying to do. The stock drive...
  6. Z

    Rod/Main bearing sizing

    Since this is now a 3000GT/Stealth forum, I thought I would share some information that was posted over on 3SI. Spun bearings is a relatively common thing on 6G72s (mostly from dented oil pans, but still, always nice to find better solutions). This is something I had long wondered about on...
  7. Z

    Oil pressure accumulator

    Engine failures and builds always get me thinking about oiling, even if it didn't directly contribute to my failure, so I am looking for comments/experience on oil pressure accumulators. Has anyone run one? Think it's a good idea, bad idea, not worth the $$$, etc. Specifically, I know James is...
  8. Z

    Opinions on engine

    Ok, so as you probably know from my build thread, I just toasted another engine. I have yet to pop the pan and see what's up, but I still had oil pressure after it popped so I am assuming that like last time, the big end is intact and I either folded a rod, broke a piston, etc. I know the...
  9. Z

    Anybody else run the LS7 maf?

    So on the twincharged car, I have been playing with my LS7 MAF (100mm housing) and the numbers just aren't adding up. I have been scaling back my injector size in the tune as well as the MAF chart to get some more resolution (since originally it was maxxing out the values in the maf chart at...
  10. Z

    AFRs on pump gas

    What kind of air fuel ratios are you guys ending up with? I have spoiled myself for the last couple years on chilled intercooling Methanol or E85 running as lean as 13.3 on the wideband, but I was planning on going back to pump gas...and after looking at the narrowband numbers on this Regal and...
  11. Z

    Adapter plate: take two...low cost version

    Ok guys, I have been looking more and more into a cost effective, one-piece adapter plate...since price seems to be a big objection here. I felt this needed it's own thread since the other one is kind of off-topic and cluttered up. So, the question is, would this make sense to more of you at...
  12. Z

    Gauging interest: Adapter plates for M122/TVS2300

    As some of you may know, I cobbled together an epoxied adapter intercooler for my build that allowed me to bolt on a M122 supercharger. Fitment is a huge issue with my giant intercooler core (am using a stock cobra core), and I always fully intended to replace that piece with a properly done...
  13. Z

    Ignition system findings - upgrade this, not that!

    As some of you know, I've been getting pretty crazy with my ignition system so I thought I would post some findings. For those unacquainted, I have been in the process of an extensive round of mods on my Buick including a 4t80e swap, and a twincharged setup with a monster supercharger and...
  14. Z

    3800 performance parts for sale - supercharger, intercooler, intake parts, converter

    Have a deposit on everything, will repost/update if it falls through, but for now consider it all sold Ok guys, so I'm midway through my turbo build and I'm running out of cash so I decided it's time to sell off some of the performance items from my previous setup that I won't be needing in...
  15. Z

    Sleeper build thread

    Ok guys, despite not having taken any pictures yet or not being officially started on this round of upgrades, I thought I would go ahead and start this thread to introduce you to my car, and what my plans are for it and to seek advice/input. I have a 1998 Park Avenue Ultra that I bought a...
  16. Z

    ZZP Stattama crossover - 4t80e clearance?

    Looking to turbo or twincharge my park avenue, and in my "old age" I would rather just buy and bolt something on vs making it myself. I've been looking at the ZZP stuff since I already have a front power log. My issue is that I am almost definitely going through with a 4t80e install, so I was...
  17. Z

    👋 INTRO Hello all

    New here. I'm not in the Chicago area...Wichita, KS actually, but I have a 1998 Park Avenue Ultra I've been upgrading one piece at a time over the last couple years. I'm all about the sleeper. Getting ready to do a turbo or twincharged setup, along with a 4t80e swap. It was suggested I sign up...