I can settle this.

Last year I was able to hold 15 PSI with the Hallman controller feed from the intake manifold. I got steady pressure up to the red line. So the turbo was willing and able. Then cool weather hit... pressure overshoots.

I just did quite a few runs with the new pressure tap attached to the return tube on the top of the (old style) intercooler. The strange effects with the lower gears we see with the compressor pressure tap seem to be gone. There is some high rpm prssure losses, but these are from the downstream plumbing losses. The weird stuff is gone. At least I will get some decent dyno runs Saturday.

Don't be hacking up your intercoolers just yet, at least until you have a way to avoid metal bits inside, or removing them.

I am thinking of trying a pressure tap near the blowoff valve.

At least the pressure overshoots are quite minor now. The worst of the time delay induced problems seem to be undercontrol. BUT, I need a cold or cool morning, not many of those left for a while, to make the final determination.

I decribed the new fitting a few hours ago... see that post.

• Re: boost drop @high RPM's attn: Abbotized ECU and man BPC's long, cl, Fri, 20 Apr 2001 17:33:41
  • My abbott ecu..., Avatar, Fri, 20 Apr 2001 23:51:31
    • More pictures added if your interested., Avatar, Sat, 21 Apr 2001 21:42:09
    • Re: My abbott ecu..., Han, Sat, 21 Apr 2001 17:36:23
    • Nice car, nick , Sat, 21 Apr 2001 02:33:04
      • skirts info, Avatar, Sat, 21 Apr 2001 12:43:17
        • do they just 'bolt on' or replace old ones or other?? n/m, cl, Sat, 21 Apr 2001 13:06:07
          • Re: do they just 'bolt on' or replace old ones or other?? n/m, Avatar, Sat, 21 Apr 2001 16:45:53
            • thanks! n/m, cl, Sun, 22 Apr 2001 10:55:41
    • very nice ride!! are your turn indicators custom??, cl, Sat, 21 Apr 2001 01:52:20
      • Re: very nice ride!! are your turn indicators custom??, Avatar, Sat, 21 Apr 2001 09:05:10
        • sweet. just added turn signals to this weekend's list. thanks n/m, cl, Sat, 21 Apr 2001 11:27:42
          • done! they look sweet. thanx for info! n/m, cl, Sat, 21 Apr 2001 13:09:42
    • Nice photo, Ckpaden, Sat, 21 Apr 2001 01:05:30
  • Re: boost drop @high RPM's attn: Abbotized ECU and man BPC's long, Dean, Fri, 20 Apr 2001 20:24:17 <-- Viewing This Message
    • Re: boost drop @high RPM's attn: Abbotized ECU and man BPC's long, cl, Sat, 21 Apr 2001 01:55:08
  • Where should I start?, Ckpaden, Fri, 20 Apr 2001 18:36:56
    • wow, tons of info... thanks n/m, cl, Sat, 21 Apr 2001 01:57:04
    • here's the abbot turbo upgrade, cl, Fri, 20 Apr 2001 18:47:56
      • Very skeptical, Ckpaden, Sat, 21 Apr 2001 01:19:04
      • The hybrid 25/28 is better., ckpaden, Sat, 21 Apr 2001 00:56:41
        • the t25 turbine is too small, sean, Sat, 21 Apr 2001 14:34:30
          • Its maptuns set up, Ckpaden, Sat, 21 Apr 2001 18:48:42
            • Re: Its maptuns set up, sean, Sat, 21 Apr 2001 23:32:04
              • Problems with bigger turbo's..learn form HKS, Ckpaden, Sun, 22 Apr 2001 18:47:55
                • thanks for the insult, sean, Sun, 22 Apr 2001 23:46:42
                  • Sounds like a good read., ckpaden, Mon, 23 Apr 2001 18:22:38
                    • Re: Sounds like a good read., sean, Mon, 23 Apr 2001 21:01:40
      • I bought that kit, sean, Fri, 20 Apr 2001 23:01:29
        • Re: I bought that kit, clintp, Fri, 27 Jan 2006 11:31:13
        • let me know how it works out for you n/m, cl, Sat, 21 Apr 2001 01:46:53

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