I understand the "R" is dual ball bearing. My question is, how much more lag is there going to be with the GT4088 vs. the GT40R, regardless of the port size(as long as you compare each turbo on the same port and tune)?

Please tell any more helpful information.

Thanks in advance!!

 

I think I have researched that it is around 500rpms more lag for the non-ball-bearing turbos. I could be wrong though. I have the GT40R, but I have nothing to compare to.

Dee

 

What rpm are you getting full boost at? I have a GT40R but its not on the car yet.

 

Well, I have not driven mine yet either. I am waiting on a restrictor fitting for the oil feed. What kit do you have?

Dee

 

I didn't buy a kit, I only bought the turbo. I'm making my own ss manifold and downpipe.