|A lot of the aristo boys in aussie leave the downpipe stock, and just remove|
the front cat, then do a decient cat back system, this seems to be a good
way of keeping the boost around stock levels, but still free up the flow a
little bit to be ok when running higher boost, etc. it's what we'll probably
do with ours, not much point in putting on a big exhaust, then have to run a
restrictor or anything, when the stock will be enough for what we want.
Adrian did you use a supra 2j or an aristo 2j for your conversion? There's
quite a few differences I've noticed between the two...
[mailto:firstname.lastname@example.org] On Behalf Of Adrian Maka
Sent: Monday, 2 February 2009 10:38 a.m.
To: Supra Club of NZ Mailing List
Subject: Re: [sconz] 2JZ downpipe question
I have a 3" on mine and it gets to 1 bar and holds there. Only ever
spiked when i had nothing off the turbos when i drove it to the
Mr Muffler said that i might have to have a restrictor on it but no
worries there. The baffle of the first muffler has let go so maybe
thats restricting flow and not allowing to overboost? :o
Quoting Cully Paterson <Cully@supras.org.nz>:
> Hi guys,
> The bog standard problem with 2JZGTE's overboosting when larger than
> stock downpipes are installed - does anyone know how big you can go on
> an otherwise stock setup before the wastegate is unable to control the
> boost any more? Have a mechanic friend who is asking the question as a
> 2.5" pipe on a customer car is causing it to happen.
> Supra Club of New Zealand - http://www.supras.org.nz/
> Website sponsored by Alltech Diesel & Turbocharger http://www.turbo.co.nz
Supra Club of New Zealand - http://www.supras.org.nz/
Website sponsored by Alltech Diesel & Turbocharger http://www.turbo.co.nz