ironmikektm525

My t/a has full Bolton's with stock tranny/stall. Doesn't see track often. Any benefit in installing aftermarket cooler? Car has 130k. If no oK if yes should I bypass stock cooler and what part # kit to install? Has any body logged bypass temps vs non?

98CayenneT/A

Absolutely add a aftermarket cooler especially with a higher stall. The cooler you keep the tranny the longer it will last.
I have read thread after thread about inline with stock cooler or eliminate stock cooler with no real answers. My tranny builder said just run it inline with the stock cooler so that's what I did.
The bigger the better but I went with the b & m 70264

mjs1012

iTrader: (36)

Does that car NEED a cooler? No, but it's a nice thing to have and will help keep temps down and will keep the transmission alive longer than if you didn't have one.

I have used a cooler both with and without the stock one and the temps were always at 190 and would pretty much stay there when paired with the cooler in the radiator. I have a good sized tube an fin cooler bypassing the stock unit and it does a much better job of cooling and keeping temps down. The highest I got my trans temp up to last year was 190 and I was beating the hell out of it.

jblankenship

iTrader: (5)

I run two coolers, one plate and one tube and fin. Tranny stays real cool, and recovers great at the track.

high n dry

iTrader: (18)

I'd like to see pix of that set up if u could.

ironmikektm525

Good info! Mjs1012. Do you recall your tranny temps before you added a cooler? What approx temp does a stock converter/factory cooler setup average? Of coarse it depends on how your driving ect.Approx temp drop from adding an aftermarket cooler? Thx

mjs1012

iTrader: (36)

No, I never monitored temps before I put in my built trans/converter, but the fluid in the stock trans was brown and smelt pretty burnt so it's safe to say it got pretty hot.

Like you said it depends how your driving, but I'd assume it's not uncommon for temps to be in the 180-210+ range without a cooler and stock converter. With most coolers you'll probably see a decent drop in temps. I saw about a 40 degree drop after I bypassed the stock cooler.

ironmikektm525

Wow that's a big drop. What cooler you running. Part # would be great! Any pics? Is there a minimum temp that a tranny needs to run at?

jblankenship

iTrader: (5)

There just stacked on top of each other on front of the condensor, tube and fin on top and plate under it. Goes from trans to tube and fin, to plate, back to trans.

Mine in the summer runs at 125-150 degrees, stall does not lock up until 50 mph. 4000 stall, truck pan, HD2 kit. I have to really work to get it above 160. I have heard with 4l60e's the cooler the better.

mjs1012

iTrader: (36)

Here's the cooler I have: http://www.summitracing.com/parts/flx-3820

I have it mounted on the radiator, but I might get a new cooler in the spring when I change my fluid.

ironmikektm525

Why new cooler? Not happy with this one? I want to get a cooler ordered so any other opinions on which one to buy plz advise. Plz include part #'s.

mjs1012

iTrader: (36)

I want to get plate style cooler and I'll just put this one on my truck. I'll probably get a hayden 679 which is a 30k gvw cooler and put it in the same spot as this one.

A popular cooler alot of people use is a b&m 70264. It comes as a kit with pretty much everything you'll need

87gnx

iTrader: (3)

If nothing else,a cooler is good insurance.Later if you want a higher stall converter, the trans cooler will be in already. $0.02

ironmikektm525

24,000 vs 20,000. Seeing I'm running stock stall the one your running should be more than enough cooling capacity right? If you think il benefit more with the b&m I'll go with that one

98CayenneT/A

A plate style cooler is more efficient and cools better than a tube and fin, the b & m plate style would be a better choice

ironmikektm525

Changed my post cause I found more info . B&m it is! Thx

high n dry

iTrader: (18)

Good choice!