MattyP MattyP Cruise Control 6,317 Member For: 12y 6m 10d Gender: Male Location: Central Coast Posted 17/07/14 10:36 AM Share Posted 17/07/14 10:36 AM (edited) The gtx is the insane bigger brother of the standard fg turbo Break neck spool and good for 400 on e85The f6 turbo is a gt3540 or gt3582 (with a .5 cover) Good for about the same power but the gtx has better spool I have a 3540 with an 11 blade billet wheel and works really well for 441rwkw on e85 at 20-21psi Edited 17/07/14 10:37 AM by MattyP Link to comment Share on other sites More sharing options...
Stigmata Donating Members 235 Member For: 11y 10m 1d Gender: Male Posted 17/07/14 10:55 AM Share Posted 17/07/14 10:55 AM I just made 446rwkw from little GTX35 76. Compared with the OEM FG 76 the GTX 76 has billet front wheel, still 76mm exducer size with 4" anti surge comp cover, flowing around 15% more air. It gives the little snail good mid range and a top end the OEM 76 never had. F6 runs the bigger 35 82.Kind regards Jon 1 Link to comment Share on other sites More sharing options...
MattyP MattyP Cruise Control 6,317 Member For: 12y 6m 10d Gender: Male Location: Central Coast Posted 17/07/14 11:02 AM Share Posted 17/07/14 11:02 AM Because SA Dyno... hahaDoesn't it usually come with the .6 cover Jon? Link to comment Share on other sites More sharing options...
Stigmata Donating Members 235 Member For: 11y 10m 1d Gender: Male Posted 17/07/14 11:11 AM Share Posted 17/07/14 11:11 AM LMAO!! Yep dynos can be misleading. It ran 127mph before with 401 so will be interesting to see what it goes this time. Yep GTX76 has .6 coverKind regards Jon Link to comment Share on other sites More sharing options...
PAH Donating Members 361 Member For: 15y 9m 26d Gender: Male Posted 17/07/14 11:17 AM Share Posted 17/07/14 11:17 AM Thanks Guys,I should have asked. After fitting a GTX3576, is there a need to modify the factory waste gate on an FG XR6T?And if so, how?PAH Link to comment Share on other sites More sharing options...
MattyP MattyP Cruise Control 6,317 Member For: 12y 6m 10d Gender: Male Location: Central Coast Posted 17/07/14 11:20 AM Share Posted 17/07/14 11:20 AM Yes the waste gate will need to be ported and a bigger flap and an actuator. That's still flying Jon. 1 Link to comment Share on other sites More sharing options...
PAH Donating Members 361 Member For: 15y 9m 26d Gender: Male Posted 17/07/14 11:31 AM Share Posted 17/07/14 11:31 AM (edited) Thanks Jon. What's the best option? Port the factory waste gate or fit an external waste gate?And how much does waste gate porting cost?PAH Edited 17/07/14 11:32 AM by PAH Link to comment Share on other sites More sharing options...
MattyP MattyP Cruise Control 6,317 Member For: 12y 6m 10d Gender: Male Location: Central Coast Posted 17/07/14 11:52 AM Share Posted 17/07/14 11:52 AM Porting factory waste gate Otherwise you'll have to screw around with different manifolds.Around 200 I think Link to comment Share on other sites More sharing options...
Stigmata Donating Members 235 Member For: 11y 10m 1d Gender: Male Posted 17/07/14 12:06 PM Share Posted 17/07/14 12:06 PM Def port the factory WG and fit bigger flapper. It will be fine for the 76 Kind regards Jon Link to comment Share on other sites More sharing options...
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