apache_dj Member 145 Member For: 19y 9m 9d Location: Auckland NZ Posted 31/10/06 09:02 AM Share Posted 31/10/06 09:02 AM Hi Guys, My cars at the tuner at the moment and he's having trouble making good power, it just isnt smooth. the torque curves flat and the boost is flat but the power just isnt there, it seems its running a bit rough under power. I've got a 3.5@ Xforce turbo back exhaust, custom FMIC and plenum shorter intake with the xover pipework removed NIZPRO style battery in the boot etc. It has been running rough when you put your foot into it since the exhaust went on but was running the generic 8psi tune, Ford put it down to boost spiking due to the exhaust. My Tuner at Torque Performance has said that's not the case and the valve springs are holding up OK. Ive gapped the plugs cleaned the throttle body, checked for leaks every where. The power is there just 10-15KW comes and goes when it runs rough. Could this be a failed Cat? Any help would be great. The new pipework ,intercooler and plenum + 968s are new on at the tuners shop so I dont think they are the cause. He assures me he'll get to the bottom of it I just wondered if any of you have had this problem? Link to comment Share on other sites More sharing options...
XR68UZ XR68UZ Donating Members 732 Member For: 19y 2m 1d Location: Sydney Posted 31/10/06 09:04 AM Share Posted 31/10/06 09:04 AM never had this problem, but then again I had a good tuner :spoton: Link to comment Share on other sites More sharing options...
FPV TRANNY Im the one and only Donating Members 3,557 Member For: 20y 2m 3d Gender: Male Location: In my house Posted 31/10/06 09:04 AM Share Posted 31/10/06 09:04 AM Yes it could be a farked cat.Mine did the same thing and we tracked it back to a melted cat Link to comment Share on other sites More sharing options...
Phoon Member 284 Member For: 19y 2m 9d Gender: Male Posted 31/10/06 09:36 AM Share Posted 31/10/06 09:36 AM Hi Guys, My cars at the tuner at the moment and he's having trouble making good power, it just isnt smooth. the torque curves flat and the boost is flat but the power just isnt there, it seems its running a bit rough under power. I've got a 3.5@ Xforce turbo back exhaust, custom FMIC and plenum shorter intake with the xover pipework removed NIZPRO style battery in the boot etc. It has been running rough when you put your foot into it since the exhaust went on but was running the generic 8psi tune, Ford put it down to boost spiking due to the exhaust. My Tuner at Torque Performance has said that's not the case and the valve springs are holding up OK. Ive gapped the plugs cleaned the throttle body, checked for leaks every where. The power is there just 10-15KW comes and goes when it runs rough. Could this be a failed Cat? Any help would be great. The new pipework ,intercooler and plenum + 968s are new on at the tuners shop so I dont think they are the cause. He assures me he'll get to the bottom of it I just wondered if any of you have had this problem?←Exactly the same thing happened to mine. Idiots at Ford said intercooler hose had a split, and wouldnt have it that I had checked every single hose. I took it to Steve at Redcliffe Dyno, told him I think the cat had lunched itself, he agreed, took it off and what do you know, the cat had lunched itself. New cat and happily on my way again. Link to comment Share on other sites More sharing options...
apache_dj Member 145 Member For: 19y 9m 9d Location: Auckland NZ Posted 01/11/06 01:47 AM Author Share Posted 01/11/06 01:47 AM Thanks guys, I'll get the team at Torque Performance to check the cat. I had meant to replace it with a straight pipe anyway, this might happen sooner than anticipated. Link to comment Share on other sites More sharing options...
ugy Donating Members 199 Member For: 19y 4m 17d Location: Auckland Posted 01/11/06 02:50 AM Share Posted 01/11/06 02:50 AM What sort of rwkw are you getting Link to comment Share on other sites More sharing options...
apache_dj Member 145 Member For: 19y 9m 9d Location: Auckland NZ Posted 01/11/06 07:12 AM Author Share Posted 01/11/06 07:12 AM To be honest I havent even asked the tuner what power he is getting at the moment with the problems. I know I'd like to get around 300 RWKW, but who knows what its going to actually make - I'll let you know. Robin is back tommorrow, been setting up a customers dyno. Link to comment Share on other sites More sharing options...
bjc Donating Members 2,823 Member For: 21y 6m 6d Gender: Male Location: Townsville Posted 02/11/06 07:37 AM Share Posted 02/11/06 07:37 AM Check fuel pressure as I did the mod to my standard pump and using some EFI hose in the tank the problem was 3 months down the track the hose had bulged and split giving no pressure. Link to comment Share on other sites More sharing options...
jetute Donating Members 4,553 Member For: 21y 1m 9d Gender: Male Location: brisbane Posted 02/11/06 07:51 AM Share Posted 02/11/06 07:51 AM check bolts on turbo manifold... raph had the same problem and that was his prob... was not running rough so to speak but felt jerky due to the leak and was not making power on the dyno... with new bolts in the power returned and yes it could be a melted cat as well hope you find the problemm asap Link to comment Share on other sites More sharing options...
apache_dj Member 145 Member For: 19y 9m 9d Location: Auckland NZ Posted 03/11/06 12:47 AM Author Share Posted 03/11/06 12:47 AM Cheers Guys, I should hear back tonight. Fingers crossed as I'll be dissapointed if it doesnt get the best results possible due to a problem. That said he wont tune it too hard if its got issues. Who do you turn to if the tuner cant fix it? the warranty went out the window with the new Plenum Link to comment Share on other sites More sharing options...
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