Difference between T04E and T04B trims

[gvillegsx]

Just like the title says, this may be obvious but I dont know the difference between the T04E trim and the T04B trim on the compressor. Looking into a T3/T4 hybrid and both are offered. Thanks.

 

[andymoraitis]

If you're referring to the compressor covers, the B is a smaller unit that encourages quick spool, but creates a warmer air intake charge than the E. Typically on a Bullseye Mitsu housing turbo, B covers are available on 50 trims, but E covers start at a 57 trim turbo. I'm not quite sure how it works for T3 turbos, so you may want to check with the individual vendor you'll be buying from.

If I had a choice between the two, I'd always pick the E cover since it facilitates a cooler air intake charge that will have less propensity to knock on pump gas.

Does that help out?

 

[gvillegsx]

Yeah, thanks a lot!