jas98 Member 1,029 Member For: 11y 8m 28d Gender: Male Location: Maryborough Qld Posted 20/01/20 09:40 AM Share Posted 20/01/20 09:40 AM Hi all. I have a ba xr6t. Its stock tune...has cat back exhaust and a growler anyway (not really mods but eh) I know its had a larger flapper put on by previous owner years ago as it was running 16psi. Then returned to stock tune but left the rear houseing with larger flapper. Not stupidly larg but definally is larger then factory as I had a factory one beside it and it was larger. Was told it was a fg houseing as there larger...doubt it. Anyway question is what....if any.....problems would it have with larger flapper on stock tune etc? Seems to be going ok over the years. Would it effect power or would it all be fine. As I was looming at the mamba rear houseings and thought about giveing them a ago. As I also have hair line cracks in the flapper area. Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 28,292 Member For: 16y 10d Gender: Male Location: Melbourne Posted 20/01/20 10:57 AM Share Posted 20/01/20 10:57 AM FG housings are not larger. it's fine to have a larger flapper on a stock tune. Link to comment Share on other sites More sharing options...
jas98 Member 1,029 Member For: 11y 8m 28d Gender: Male Location: Maryborough Qld Posted 21/01/20 10:13 PM Author Share Posted 21/01/20 10:13 PM Thanks. Didnt think ot would make a difference. Are the actual flappers larger on fg? I have read they are bit not sure. Also ive read allot about cracking at the seat where flapper sits. Mine has 2 cracks. And I kmow a hpuseing bolt used to always come loose no.matter what I done. Bit seems to be holdong now. So im tjinking of swapping it over soon. Link to comment Share on other sites More sharing options...
camo86T Silver Donating Members 1,810 Member For: 10y 2m 8d Gender: Male Location: SW Sydney Posted 21/01/20 11:15 PM Share Posted 21/01/20 11:15 PM Standard flapper size is no different between FG & B series housings FYI FG does use a better composition of casting with higher nickel content for moderately higher resistance to cracking Link to comment Share on other sites More sharing options...
jas98 Member 1,029 Member For: 11y 8m 28d Gender: Male Location: Maryborough Qld Posted 22/01/20 02:08 AM Author Share Posted 22/01/20 02:08 AM Hmm thankd. Well its definally been boeed oit in past. I kmow ive tead heaps that it dont matter bout cracks bit also read a bit that it does. So im unsure what to belive. It is only boosting at round 3 to 4 psi used to go to 6psi. (With 8psi actuator on it 10psi 😂) Checked alllll boost pipes and bolts etc. The actuator on it is about 120 000ks old stock one. When I apply vacume to.it it does not hold it at all just drops quickly. Should it hold vacume? Link to comment Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 15y 10m 20d Gender: Male Location: Adelaide Posted 22/01/20 07:23 AM Share Posted 22/01/20 07:23 AM 5 hours ago, jas98 said: Hmm thankd. Well its definally been boeed oit in past. I kmow ive tead heaps that it dont matter bout cracks bit also read a bit that it does. Da fruck you say 🤯 2 2 Link to comment Share on other sites More sharing options...
camo86T Silver Donating Members 1,810 Member For: 10y 2m 8d Gender: Male Location: SW Sydney Posted 22/01/20 09:22 AM Share Posted 22/01/20 09:22 AM (edited) My interpretation 7 hours ago, jas98 said: Hmm thanks. Well its definitely been bored out in the past. I know I've read heaps that it don't matter about cracks, but also read a bit that it does. Very small hairline cracks are normal and ok, dirty big splits are not, simples Edited 22/01/20 09:23 AM by camo86T Link to comment Share on other sites More sharing options...
Mrs Jeturbo Bob the Freaking Builder Donating Members 10,805 Member For: 14y 7m 7d Gender: Female Location: SA Posted 22/01/20 10:06 AM Share Posted 22/01/20 10:06 AM Link to comment Share on other sites More sharing options...
jas98 Member 1,029 Member For: 11y 8m 28d Gender: Male Location: Maryborough Qld Posted 22/01/20 04:48 PM Author Share Posted 22/01/20 04:48 PM 9 hours ago, JETURBO said: Da fruck you say 🤯 Haha sorry. Ment to say..I know I have read heaps about the houseings cracking arouns the wastgate seat... and they say its ok. But also have read that its also a bad thing to have cracks. Link to comment Share on other sites More sharing options...
camo86T Silver Donating Members 1,810 Member For: 10y 2m 8d Gender: Male Location: SW Sydney Posted 22/01/20 10:32 PM Share Posted 22/01/20 10:32 PM (edited) This is an old photo of my FG housing before it was modified, you can see a small crack in the seat area. 5 years ago but iirc I sent the pic to MTQ who advised something that size wasn't an issue. others could share photos of their cracks if willing lol Edited 22/01/20 10:33 PM by camo86T Link to comment Share on other sites More sharing options...
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