FaSS Blac

I'm still confused why everyone is reluctant to run their trans below a certain temp. It's not like your trans will have a "total cool down" and implode. I don't advicate taking a stone cold vehicle and running it at WOT before it gets a chance to get to operating temp, but don't understand why a trans at 150 could be hurt running at WOT. When I run at ATCO, I turn my fan switch on high when the lanes sart moving and sometimes the trans is only at 125. I do my burnout, stage and go through the quarter at 150-185. Trans shifts very quick in to all gears during the run. If you think about it, a cooler trans is going to shift firmer. I've had this car since Oct 31, 2001 and it has never had a shifting problem. I think this is due to keeping the temp down with quicker shifts, good trans coolers, radiator bypass, and synthetic Dexron that withstands higher temps without burning clutches. It works for me.

Colonel

"I do my burnout, stage and go through the quarter at 150-185."

I don't see anything at all wrong with that.

However, with a stone cold (meaning outside temp or close to it) tranny I've seen somewhat erratic performance out of 4L60-Es. With the cold, thick fluid, I'm not sure that everything times out right in there...not to mention the extra power consumed from the tranny fighting the colder, thicker fluid. So, I'd prefer my tranny be at about 150 degrees or better for track use.

FaSS Blac

I would also agree with that statement as well .

jimmyblue

iTrader: (11)

I put my cooler before the radiator so it sheds excess
heat better, but keeps the base temp at coolant temp
(which is 178F give or take, with the Hypertech 160).

42NightZ28

I have a Stage 2 Speed inc 4L60E trans and a SS3800E converter from Yank. Mike told me to use Amsoil Powershift 10w by name is this a version of F-type? Its stickly like glue.

RPM WS6

iTrader: (3)

I used to have the extra cooler before the radiator too, but I was able to drop about 20* more temp off the trans by switching it to after the stock cooler.

I really can't see any reason why you would want to pre-heat the fluid like that. It'll get up to a decent opperating temp just fine with a little driving.

LS1INSIDE

i just swapped my oil today (in fact like 5 min. ago) and well I really don't feel a difference as long as it doesn't kill my tranny then it's all good!

Colonel

Hmmm....no difference with F-type? Did you do a full flush or just drained the pan?

LS1INSIDE

full swap with the machine, I think I just need to drive it more

Colonel

I hate to sound picky but did you watch them during the process. I know the Pennzoil place I go to normally doesn't have F-type. I have to bring my own. I could see them tossin' in Dextron if they didn't have F-type. They might figure you'd never know.

LS1INSIDE

I bought the stuff my self unfortunantly I only had 20 bucks to my name lol and I bought the cheap f-type fluid for like a 1.25 a qt at autozone.

p.s. the guy who owns the shop is a friend of mine he looked at me like if i was crazy.