[Bigg_cali]

My buddy just got a gen 5 whipple put on his 392 SRT and it’s making good power! He’s still on his stock driveshaft. He’s an auto and I have a 18 auto hellcat that I put a wiles in. I still have my stock driveshaft if he breaks his will my stock 18 auto driveshaft work on his 392 car? Thanks .

 

[Slidd]

I still have my stock driveshaft if he breaks his will my stock 18 auto driveshaft work on his 392 car? Thanks .

No, it won't work. The Hellcat 8HP90 is a little longer than the 392 8HP70 so the Hellcat driveshaft would be too short.




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[ArchGE]

I’d guess he’ll break the HP70 trans. before anything else. 630 HP is kind of at that tipping point. What’s the torque at?

 

[Bigg_cali]

I’d guess he’ll break the HP70 trans. before anything else. 630 HP is kind of at that tipping point. What’s the torque at?

580 ish

 

[ArchGE]

You’re prob. OK for a while then. The HP70 basically stands for the ability to take 700 Nm of torque which equates to around 516 ft/lbs.

 

[MXS67454]

With a good TCM tune the HP 70 will live beyond the power your buddy is making . I’d be much more concerned with the ring lands . I’ve been down this road with my 750whp Scat .
Which by the way , was last tuned at the same shop . LMT in Waukesha.

 

[ArchGE]

With a good TCM tune the HP 70 will live beyond the power your buddy is making . I’d be much more concerned with the ring lands . I’ve been down this road with my 750whp Scat .
Which by the way , was last tuned at the same shop . LMT in Waukesha.

And ring gap. Boost on stock N/A ring gap is typically why top piston ring-lands break. I’d at least get in there and increase that gap...maybe around 28 thou.?

 

[baabootoo]

And ring gap. Boost on stock ring gap in typically why top piston ring-lands break. I’d at least get in there and increase that gap...maybe around 28 thou.?

Word! Just watch Tony and Lucky on Hot Rod Garage and you'll see it in action.