Redskin New Member 22 Member For: 12y 1m 12d Posted 22/10/12 01:14 AM Share Posted 22/10/12 01:14 AM Im buying an exhaust (gettin it cheap) that consists of a 4 inch dump, cat section and 2x 2.5 inch catback ive heard u need do some type of mod 2 the turbo if u put a 4 inch dump on ??? Can someone shed some light on this please and thankyou im dyslexic and cannot turn off simple functions in tapatalk Link to comment Share on other sites More sharing options...
MA91CK billet turbos and weathered engines dont mix Donating Members 1,346 Member For: 12y 5m 14d Gender: Male Location: Wollongong Posted 22/10/12 01:18 AM Share Posted 22/10/12 01:18 AM The turbos on xr6s overboosts because the Wastegate can't get rid if gases quick enough with a bigger exhaust. You nee to port the wastegat and get a bigger flapper, may as well change your actuator too. Link to comment Share on other sites More sharing options...
Paulie2256 Donating Members 7,441 Member For: 15y 11m 13d Gender: Male Location: SE Melbourne Posted 22/10/12 01:19 AM Share Posted 22/10/12 01:19 AM You will need to port the exhaust housing (wastegate) so that more boost can be bled because the dump will flow a lot better causing the turbo to be over efficient. Change the actuator if you are going to do it. Link to comment Share on other sites More sharing options...
Paulie2256 Donating Members 7,441 Member For: 15y 11m 13d Gender: Male Location: SE Melbourne Posted 22/10/12 01:21 AM Share Posted 22/10/12 01:21 AM jinx? Link to comment Share on other sites More sharing options...
MA91CK billet turbos and weathered engines dont mix Donating Members 1,346 Member For: 12y 5m 14d Gender: Male Location: Wollongong Posted 22/10/12 01:22 AM Share Posted 22/10/12 01:22 AM Haha yehp Link to comment Share on other sites More sharing options...
Redskin New Member 22 Member For: 12y 1m 12d Posted 22/10/12 02:28 AM Author Share Posted 22/10/12 02:28 AM (edited) Ok kool. Wat kinda dollars and cents we talkin for something like this and would u needa do the mod if I was 2 only run a 3 1/2 inch dump Edited 22/10/12 02:29 AM by Redskin Link to comment Share on other sites More sharing options...
Panda Eyes flame magnet Gold Donating Members 5,674 Member For: 16y 5m 19d Gender: Male Location: adelaide hills- 'race air' central Posted 22/10/12 04:14 AM Share Posted 22/10/12 04:14 AM dont need to port the turbo, just get the actuator and have it tuned to keep the boost where you want it.I havent gone down the ported turbo route yet, cbf taking it off now the bolts are staying tight... Link to comment Share on other sites More sharing options...
Mrs Jeturbo Bob the Freaking Builder Donating Members 10,810 Member For: 15y 1m 22d Gender: Female Location: SA Posted 22/10/12 04:24 AM Share Posted 22/10/12 04:24 AM yea... r u getting it tuned? if not don't bother with the exhaust coz there's no point Link to comment Share on other sites More sharing options...
Bellato Donating Members 2,713 Member For: 14y 16d Posted 22/10/12 04:38 AM Share Posted 22/10/12 04:38 AM What model is it?I dunno why but there was a lot of porting and flapper mods on B series but I haven't really heard much of guys in FG's doing turbo mods with dump pipe? Has this got something to do with the smaller turbo? Link to comment Share on other sites More sharing options...
Ralph Wiggum Moar Powar Babeh Lifetime Members 19,323 Member For: 19y 1m 12d Gender: Male Location: Perth Posted 22/10/12 04:41 AM Share Posted 22/10/12 04:41 AM Fg waste gate port and flapper is bigger. Link to comment Share on other sites More sharing options...
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