Hi everyone,
I am wondering if there are any people in these forums that have one of these transmissions from Performabuilt?
I am really wanting to hear feedback from people running these at high power levels and how they have been holding up.
There are a lot of differences of opinion in the forums with the 4L65E transmissions and this high power level rating and it would be really good to clear some of this up by someone who has had experience with one of the transmissions in particular the 4L65E as this is the one I am looking at.
I know technology changes and improves over time so having some confirmation would be great.

 

I ran one for over 10k miles , made 954/1044 on a very stingy loaded superflow “same tune up I had ran upwards of 30 psi , on and off the trans brake . The trans is bad *** , and Ryan , frank and allan are as stand up as it gets .

I figured i would add that this was in a 3700 lb 04’ gto , with a forged 370 and twin billet wheel s369s . You won’t be disappointed .

dennis

 

Thought I’d add , I was probably north of 11-1150 whp on kill , but had a home made intercooler peel open on the dyno unfortunately 🤦🏾dum♂️ Definitely had 1200+ in it

 

How long did you have it for?
Do you Still have it?
Is it still good after 10k?
I have the same chassis too.