dragons90 Member 42 Member For: 15y 11m 23d Gender: Male Posted 23/01/14 10:16 AM Share Posted 23/01/14 10:16 AM Could the turbulence be causing the turbo to drop out of it's efficacy curve. 1 Link to comment Share on other sites More sharing options...
dragons90 Member 42 Member For: 15y 11m 23d Gender: Male Posted 23/01/14 10:34 AM Share Posted 23/01/14 10:34 AM Creating high exhaust backpressure in the turbo. Link to comment Share on other sites More sharing options...
RIP85 REST IN PEACE V8 Donating Members 469 Member For: 16y 1m 4d Gender: Male Location: Woodridge on the park bench Posted 27/01/14 07:00 AM Author Share Posted 27/01/14 07:00 AM Got car back after 4 hours on the dyno tuner wasn't able to add more boost due to not being able to get the mixtures right in the top end no mater what he tried just could not get the car to play ball so now the car is making 75 less hp on 4 psi more boost but the external waste gate has allowed more low end power so instead of having top end it's got low end which has it's benifits lol 1 Link to comment Share on other sites More sharing options...
IH8TOADS Silver Donating Members 3,618 Member For: 18y 10m 17d Gender: Male Location: OZ Posted 30/01/14 10:29 PM Share Posted 30/01/14 10:29 PM That's a massive loss. Have you got any data on what timing the engine was seeing before and after? I would go out and do some data logging and see what it's like now as a minimum (if your tuner hasn't done it already). Link to comment Share on other sites More sharing options...
RIP85 REST IN PEACE V8 Donating Members 469 Member For: 16y 1m 4d Gender: Male Location: Woodridge on the park bench Posted 06/02/14 03:09 AM Author Share Posted 06/02/14 03:09 AM I have given up on this set up just ordered a similar turbo to a gtx42 but mta spec 3 Link to comment Share on other sites More sharing options...
IH8TOADS Silver Donating Members 3,618 Member For: 18y 10m 17d Gender: Male Location: OZ Posted 06/02/14 06:08 AM Share Posted 06/02/14 06:08 AM What manifold you going for? Link to comment Share on other sites More sharing options...
sixman Donating Members 593 Member For: 19y 10m 3d Gender: Male Location: Hills District, NSW Posted 06/02/14 07:02 AM Share Posted 06/02/14 07:02 AM I have given up on this set up just ordered a similar turbo to a gtx42 but mta spec ImageUploadedByMotorculture1391656149.253027.jpgAre you sticking with the same tuner? 1 Link to comment Share on other sites More sharing options...
RIP85 REST IN PEACE V8 Donating Members 469 Member For: 16y 1m 4d Gender: Male Location: Woodridge on the park bench Posted 06/02/14 07:24 AM Author Share Posted 06/02/14 07:24 AM <br />Are you sticking with the same tuner?<br />Maybe very limited to tuner due to the engine setup with fixed cam gears never let me down the last 4 years he suggested larger turbo from the start <br /><br />Manifold will b 6 boost or exotic exhaust setup twin scroll duel waste gates once turbo is finished being built I'll see which way I'll go 1 Link to comment Share on other sites More sharing options...
dragons90 Member 42 Member For: 15y 11m 23d Gender: Male Posted 06/02/14 08:09 AM Share Posted 06/02/14 08:09 AM do you know if the new exhaust housing you got was a fg one. 1 Link to comment Share on other sites More sharing options...
RIP85 REST IN PEACE V8 Donating Members 469 Member For: 16y 1m 4d Gender: Male Location: Woodridge on the park bench Posted 06/02/14 08:17 AM Author Share Posted 06/02/14 08:17 AM Genuine garret 1.06 4 bolt t3 flange 1 Link to comment Share on other sites More sharing options...
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