hjtrbo Bronze Donating Members 320 Member For: 13y 11m 7d Posted 03/04/21 09:11 AM Share Posted 03/04/21 09:11 AM Hey all, good to be back in a turbo again. Picked up a FG MK1 XR6T ute with 330 - 400rwkw 98 to E85 flex tune in front of a standard ZF box with a true-trac rear end. Current setup is F6 turbo with flapper and actuator mod, process west intercooler and piping, 1000cc injectors, fuel pump, & valve springs. Has stock dump, cat pipe section is 3" with gutted cat and then into x-Force single 3.5" cat back system. What I want to know is how will I go with bolting on either a 3.5" or 4" dump pipe? Will that still cause boost spike issues? And if no, at my power level is 3.5" dump and 3.5" cat delete pipe more than enough? (No further power increase planned) Can grab some Forscan logs of MAP if that would help anyone in answering my question. Link to comment Share on other sites More sharing options...
Tom Tucker Donating Members 669 Member For: 5y 5m 25d Posted 03/04/21 09:23 AM Share Posted 03/04/21 09:23 AM Hey mate, welcome. I recently made more than 500kw with a 3.5" dump. 3" exhaust tapered over the diff too... so I think you'll be fine Link to comment Share on other sites More sharing options...
Puffwagon Puff Gold Donating Members 15,988 Member For: 9y 10m 26d Gender: Male Location: South Australia Posted 03/04/21 09:33 AM Share Posted 03/04/21 09:33 AM 6 minutes ago, Tom Tucker said: I think you'll be fine Yerp. The dump will be fine and shouldn't change much. Zorst willI be enough for 600+ Link to comment Share on other sites More sharing options...
hjtrbo Bronze Donating Members 320 Member For: 13y 11m 7d Posted 03/04/21 09:49 AM Author Share Posted 03/04/21 09:49 AM Thanks guys. Will get the 3.5" ordered and keep an eye on the MAP data logs for the first few weeks. Link to comment Share on other sites More sharing options...
adams355 Member 529 Member For: 7y 7m 24d Gender: Male Location: Brisbane Posted 03/04/21 10:03 AM Share Posted 03/04/21 10:03 AM You will need a retune though. Find a good tuner who does touch up tunes. Link to comment Share on other sites More sharing options...
hjtrbo Bronze Donating Members 320 Member For: 13y 11m 7d Posted 03/04/21 10:05 AM Author Share Posted 03/04/21 10:05 AM Righto... So that's the bit I'm hoping to avoid. PCMtec tune is tuner locked and I live no where near where the original tuner (lessons have been learnt on staying close for after sales care) Link to comment Share on other sites More sharing options...
cat007 Member 236 Member For: 6y 3m 21d Posted 03/04/21 06:57 PM Share Posted 03/04/21 06:57 PM Who was it tuned by? Just get them to unlock it? Link to comment Share on other sites More sharing options...
hjtrbo Bronze Donating Members 320 Member For: 13y 11m 7d Posted 03/04/21 07:17 PM Author Share Posted 03/04/21 07:17 PM They refused. Link to comment Share on other sites More sharing options...
cat007 Member 236 Member For: 6y 3m 21d Posted 03/04/21 07:27 PM Share Posted 03/04/21 07:27 PM Who was it? Link to comment Share on other sites More sharing options...
hjtrbo Bronze Donating Members 320 Member For: 13y 11m 7d Posted 03/04/21 09:51 PM Author Share Posted 03/04/21 09:51 PM Don't want to mention. If you know someone who can unlock without losing the tune please pm me. Link to comment Share on other sites More sharing options...
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