Forced Induction & 7AT 370z Info

theDreamer · 05-14-2013, 07:26 AM

I believe from the failures we have seen, in the upper gears, it has been the TQ that is more responsible for the damage than the HP. Mainly because the TQ is what is going to punish the transmission early on and fast while HP gradually increases throughout the powerband. Saying the SC lower TQ will help in the long run probably is not ideal as both are going to put extra strain on the transmission.

Now onto the specific TT or SC, since you threw in the VB upgrade either will be great. At that point it will boil down to what your goals are & expectations for the kit(s). Some of your key differences are, SC is a bit more instant response while the TT has that small spool (.5 of a second or less), the SC kits have a bit more linear progression through the powerband where a TT is very upfront.

blueranger · 05-14-2013, 11:28 PM

Dreamer which system runs cooler and is less finicky from your experience and or feedback?

Also Is it best to manually shift when wanting to boost so that you can make sure you only boost in 1-4th and stay away from 5-6-7 ?

What are your boost & shifting practices?

I know sometimes it seems like us AT7 owners really want to make this transmission work with a FI setup but I really do enjoy this Auto more than even my previous Manual tranny twin turbo 996.

05-14-2013, 07:26 AM	#1 (permalink)
theDreamer A True Z Fanatic Join Date: Feb 2009 Location: Texas Posts: 30,879 Drives: 370z Rep Power: 4211	I believe from the failures we have seen, in the upper gears, it has been the TQ that is more responsible for the damage than the HP. Mainly because the TQ is what is going to punish the transmission early on and fast while HP gradually increases throughout the powerband. Saying the SC lower TQ will help in the long run probably is not ideal as both are going to put extra strain on the transmission. Now onto the specific TT or SC, since you threw in the VB upgrade either will be great. At that point it will boil down to what your goals are & expectations for the kit(s). Some of your key differences are, SC is a bit more instant response while the TT has that small spool (.5 of a second or less), the SC kits have a bit more linear progression through the powerband where a TT is very upfront. __________________ theDreamer's Z // Fast Intentions // Uprev // GTM // HKS // TEIN theDreamer's Silvia // URAS // GREDDY Houston Zs // Facebook // Twitter // Instagram

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05-14-2013, 11:28 PM	#2 (permalink)
blueranger Track Member Join Date: Aug 2012 Location: Albuquerque NM Posts: 577 Drives: 2010 Roadster 7AT Rep Power: 307	Dreamer which system runs cooler and is less finicky from your experience and or feedback? Also Is it best to manually shift when wanting to boost so that you can make sure you only boost in 1-4th and stay away from 5-6-7 ? What are your boost & shifting practices? I know sometimes it seems like us AT7 owners really want to make this transmission work with a FI setup but I really do enjoy this Auto more than even my previous Manual tranny twin turbo 996.