7-6-7 Boost Pattern.
After a few weeks of changing vacuum hoses, renewing gaskets and tightening/replacing hoses etc I now have a 7-6-7 Boost Pattern (better than my previous 7-5-2!). The car performs exceptionally well now J. At 6500 – 7000 rpm it dies (i.e. acceleration / boost stops). From what I understand boost is supposed to hold while redline? Is this a classic case of a blocked main cat? Would a blocked main cat explain the lower boost reading? Could the new boost gauge be faulty as I understand I need 8psi to operate the 2nd turbo, but it is definitely coming in and holding 7psi… The car has twin K&N Cone filters and a replaced downpipe (’92 Jap import ‘R’ Type) Any help appreciated… |
Boost gauge could be off... See if you can find a low mileage cat to swap out and see if that remedies the problem...
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Turned out to be the pill (or lack of pills)!
The previous owner (in Japan) had changed these 2 hoses and must have not known they had pills in them. Time to source new pills here in the UK..... |
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