Miatapower List Archive

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Mail From: "Ralph Doehrmann" <(email redacted)>

Just getting around to running boost again and have a strange boost spike
and fall. BBB turbo. Boost controller set to ~14psi. Mechanical boost set
~6psi. Boost comes up to 10 and falls right back to 6. It will hold 6psi.
Seemed to me like classic hose problem but I went through every hose last
night even the ones to the controller. And the idle bypass and nipple
behind manifold..
1. Would it behave like this if the controller wasn't working? I can run a
test light to check it. Haven't heard it working but don't normally until
max boost anyway.
2. Do ya think I still have a bad hose somewhere?
3. Haven't set up WG base and all that. Could that be the problem?

Thanks. Your help will save me a lot of time.

Ralph

This read-only message was archived from a public mail list.
Mail From: Ray <(email redacted)>

> 3. Haven't set up WG base and all that. Could that be the problem?

You bet, and you really should do a data log to sort out that kind of
problem. But even when you do get it working I really doubt that it will be
stable in the boost-target mode above 10 psi. It usually gets unstable by
2:1 boost increase. For 14 psi, try the duty cycle control mode instead, or
get a 10-12 psi wg cannister.

----- Original Message -----
From: "Ralph Doehrmann" <(email redacted)>
To: "MiataPower" <(email redacted)>
Sent: Thursday, February 21, 2002 7:40 AM
Subject: Not holding boost


> Just getting around to running boost again and have a strange boost spike
> and fall. BBB turbo. Boost controller set to ~14psi. Mechanical boost
set
> ~6psi. Boost comes up to 10 and falls right back to 6. It will hold
6psi.
> Seemed to me like classic hose problem but I went through every hose last
> night even the ones to the controller. And the idle bypass and nipple
> behind manifold..
> 1. Would it behave like this if the controller wasn't working? I can run
a
> test light to check it. Haven't heard it working but don't normally until
> max boost anyway.
> 2. Do ya think I still have a bad hose somewhere?
> 3. Haven't set up WG base and all that. Could that be the problem?
>
> Thanks. Your help will save me a lot of time.
>
> Ralph
>
>

This read-only message was archived from a public mail list.
Mail From: "Chris P" <(email redacted)>

same exact problem as charlie except no electronic boost controller


weird




>From: "Ralph Doehrmann" <(email redacted)>
>To: "MiataPower" <(email redacted)>
>Subject: Not holding boost
>Date: Thu, 21 Feb 2002 10:40:02 -0500
>
>Just getting around to running boost again and have a strange boost spike
>and fall. BBB turbo. Boost controller set to ~14psi. Mechanical boost
>set
>~6psi. Boost comes up to 10 and falls right back to 6. It will hold 6psi.
>Seemed to me like classic hose problem but I went through every hose last
>night even the ones to the controller. And the idle bypass and nipple
>behind manifold..
>1. Would it behave like this if the controller wasn't working? I can run a
>test light to check it. Haven't heard it working but don't normally until
>max boost anyway.
>2. Do ya think I still have a bad hose somewhere?
>3. Haven't set up WG base and all that. Could that be the problem?
>
>Thanks. Your help will save me a lot of time.
>
>Ralph
>


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