Advice Wanted

btwilson86 · 06-28-2010, 04:08 AM

On the topic of Auto vs Standard...

I've always been told that there is a slight loss of power using an auto tranny due to the nature of how an automatic works (specifically the torque converter). It seems to me (albeit I am not an expert on the subject, just a 23 yr old enthusiast) that there should be some wasted energy pumping fluid to spin a torque converter that in turn spins the transmission's input shaft. Not to mention the wasted energy in the form of heat in an auto vs standard transmissions...

I would imagine the loss is minimal, but I tend to think that if one was to shift at the EXACT same speed as an automatic, the standard transmission would be faster....

Oh, except turbos, because as Green has pointed out, constant spool would MORE than compensate the loss

06-28-2010, 04:08 AM	#10
btwilson86 Super Moderator Join Date: May 2007 Location: Billings, Montana Posts: 1,034	On the topic of Auto vs Standard... I've always been told that there is a slight loss of power using an auto tranny due to the nature of how an automatic works (specifically the torque converter). It seems to me (albeit I am not an expert on the subject, just a 23 yr old enthusiast) that there should be some wasted energy pumping fluid to spin a torque converter that in turn spins the transmission's input shaft. Not to mention the wasted energy in the form of heat in an auto vs standard transmissions... I would imagine the loss is minimal, but I tend to think that if one was to shift at the EXACT same speed as an automatic, the standard transmission would be faster.... Oh, except turbos, because as Green has pointed out, constant spool would MORE than compensate the loss __________________ 1989 7MGTE R154 Targa Top White Package w/Blue Interior Driftmotion 57trim CT26, Upgraded Intercooler, 2.25" Hard Pipes, 3" Turbo Back Exhaust with Test Pipe, HKS VPC w/GM 3 bar MAP sensor, APEXi S-AFC, Walbro 255lph fuel pump, ProSport EVO Series Boost / Fuel Pressure / AFR gauges, Lotek a Pillar Gauge Pod, HKS Type 0 Turbo Timer, Eibach Lowering Springs, Tokico Illumina II TEMS struts, custom powder coated Motegi Racing TrakLite wheels