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Old 24-04-12, 17:07   #1
simmo4by
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Join Date: 19-03-12
Location: Melbourne, 3201
Car: rb30 Patrol
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Heres a question for the gas tuners here

Ok. I have a rb30 patrol n/a converted to turbo.
Gt35 ar.70 front inducer 61.40 exducer 82.00
ar.63 rear. Inducer 65.25 exducer 56.00
S400 gra and b2
13.0mm balance line right next to the turbo
34mm bov next to turbo and balance line

The problem: its running too rich on cruise. The tuner said that it was just blowing out too rich as soon as the foot goes down which results in poor economy and running hot when sitting at 100kmh.Could it be the turbo rear housing too small and boosting at the drop of a hat? My balance line is too big?
Maybe the bov next to the balance line is affecting it? I have no idea. Im gonna chuck a boost guage in and see if its on boost all the time to cancel that option out but i dont think it is the problem. Any help?
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Old 27-04-12, 15:05   #2
simmo4by
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Join Date: 19-03-12
Location: Melbourne, 3201
Car: rb30 Patrol
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Well I answered my own question the hard way. Decided to give it to it and it was running so rich it pretty much melted the turbo bearings. My gauge was showing .50 lambda and below at 11psi when it cooked it. Now I have to find a new turbo and get a real tune. Has anyone had any experience with a bloke called Joel at PGS in Mornington. Can he tune gra's well and does he take pride in his work.
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Old 25-05-12, 17:55   #3
Nutter
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Join Date: 02-03-07
Location: Melbourne, Noble Maccas
Car: VL Calais, 6.0 Iron LS2, BW S475 - XB Coupe 520ci+Garrett - Merc E220
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I'm pretty sure Joel was the owner of swift automotive gas research in dandy, over on outerlimits4x4 he was a member, most people seemed to be happy with his work and having read his posts he is certainly educated in the area. I don't use him myself though so no first hand experience.

Also I noticed your asking a fair few questions and not getting answers, i find guys on ct tend to hide what they think are secrets with their gra setups, there are better forums for the info your chasing.

Last edited by Nutter; 25-05-12 at 17:59.
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