JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 16y 9m 3d Gender: Male Location: Adelaide Posted 13/06/20 09:26 AM Share Posted 13/06/20 09:26 AM (edited) It’s a bit like the 84rs I tuned a month back, it can spool so hard so fast it will only shine if everything can take it including the engine. Obviously 84rs flows way more LTRS/HR than a 76 so 24 psi on a 84rs is pushing the engine harder than a 76 on 24 psi but a G2 76 “Could” potentially push Rodney to an unhappy place due to the rapid rate of rise. I personally wouldn’t be advising anyone to crank a G2 76 on “full send” with a stock B series engine, maybe 90% on the initial hit. A FG “probably” could withstand 100% send on the initial hit and live. When the GTX series first came out G1 76’s were super popular but what we were seeing was nearly ever vehicle that was set to full send was lunching half shafts like crazy vs the G1 82 vehicles so this was showing how much more it could stress the full driveline ( inc engine ) with that down low punch .... This is the same reason it’s never advised to activate N2O below 4000rpm as it just stresses everything too much ! Gains under the curve are usually at the cost of hardware longevity Edited 13/06/20 09:28 AM by JETURBO 2 Link to comment Share on other sites More sharing options...
Puffwagon Puff Gold Donating Members 16,180 Member For: 10y 1m 5d Gender: Male Location: South Australia Posted 13/06/20 09:34 AM Share Posted 13/06/20 09:34 AM 5 minutes ago, JETURBO said: full send 3 1 Link to comment Share on other sites More sharing options...
Bulletime Donating Members 937 Member For: 14y 1m 25d Gender: Male Posted 13/06/20 09:45 AM Share Posted 13/06/20 09:45 AM I did my nizpro billet input shaft at 409rwkw with the gen 1 gtx3576 on e85 at 21psi with a zf tune so will attest to driveline weaknesses...I almost wanna sell off my gen 1 supercore for a gen2, especially since I only missed out on gen 2 by maybe 12 months. I think I should wait for gen 3 or g35-900 supercores though Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 29,289 Member For: 16y 10m 24d Gender: Male Location: Melbourne Posted 13/06/20 09:47 AM Share Posted 13/06/20 09:47 AM clearly your current turbo is fine for what you're doing... if you want more power go a '82 instead of a '76. Link to comment Share on other sites More sharing options...
Puffwagon Puff Gold Donating Members 16,180 Member For: 10y 1m 5d Gender: Male Location: South Australia Posted 13/06/20 10:09 AM Share Posted 13/06/20 10:09 AM 23 minutes ago, Bulletime said: I did my nizpro billet input shaft at 409rwkw with the gen 1 gtx3576 on e85 at 21psi with a zf tune so will attest to driveline weaknesses... Does that mean you snapped it there or you upgraded it there? Link to comment Share on other sites More sharing options...
Tom Tucker Donating Members 675 Member For: 5y 8m 4d Posted 13/06/20 10:10 AM Share Posted 13/06/20 10:10 AM 38 minutes ago, JETURBO said: It’s a bit like the 84rs I tuned a month back, it can spool so hard so fast it will only shine if everything can take it including the engine. Obviously 84rs flows way more LTRS/HR than a 76 so 24 psi on a 84rs is pushing the engine harder than a 76 on 24 psi but a G2 76 “Could” potentially push Rodney to an unhappy place due to the rapid rate of rise. I personally wouldn’t be advising anyone to crank a G2 76 on “full send” with a stock B series engine, maybe 90% on the initial hit. A FG “probably” could withstand 100% send on the initial hit and live. When the GTX series first came out G1 76’s were super popular but what we were seeing was nearly ever vehicle that was set to full send was lunching half shafts like crazy vs the G1 82 vehicles so this was showing how much more it could stress the full driveline ( inc engine ) with that down low punch .... This is the same reason it’s never advised to activate N2O below 4000rpm as it just stresses everything too much ! Gains under the curve are usually at the cost of hardware longevity This turbo has me salivating 🤤. Good excuse to upgrade the repco driveshafts when they explode Link to comment Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 16y 9m 3d Gender: Male Location: Adelaide Posted 13/06/20 10:15 AM Share Posted 13/06/20 10:15 AM @Tom Tucker x2 sets of Repco half shafts were destroyed on a G1 76 back in the day haha that’s what I’m talking about ! FYI that vehicle was a FG G6ET with a Trutrack on 20 psi and 400rwkw ZF auto 98 fuel but built tail shaft obviously, Felx plate went too shortly afterward but engine held up. Add another 10% for G2 and who knows what damage it could do lol Link to comment Share on other sites More sharing options...
Tom Tucker Donating Members 675 Member For: 5y 8m 4d Posted 13/06/20 10:31 AM Share Posted 13/06/20 10:31 AM Good to know. Is it possible the auto trans is more vulnerable with higher derived torque at that low rpm point? Link to comment Share on other sites More sharing options...
JETURBO ...JD TUNING ADELAIDE... Gold Donating Members 23,708 Member For: 16y 9m 3d Gender: Male Location: Adelaide Posted 13/06/20 10:34 AM Share Posted 13/06/20 10:34 AM Potentially yes Link to comment Share on other sites More sharing options...
Bulletime Donating Members 937 Member For: 14y 1m 25d Gender: Male Posted 13/06/20 11:34 AM Share Posted 13/06/20 11:34 AM Does that mean you snapped it there or you upgraded it there?Sadly it broke on 3rd to 4th shift with slicks on at the circuit. Waste of 2k plus tow plus off the road for a while. Was in there about 18 months. Now I have a 6r80 input shaft and a cf tailshaft 1 Link to comment Share on other sites More sharing options...
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