Brand new in box on3 7875 turbo. Came with the truck I bought, but I'm looking for a smaller turbo for my goals. I would be open to straight trade for the brand new in box 76mm on3, if you pay shipping both ways. Straight sale would be $375 shipped, saving you $50 rather than buying from on3

 

Fwiw...I noticed no difference in spool time with this turbo than the mp70 it replaced. This was on a 5.3 . This a perfect fit for the 5.3/4.8

 

I agree. I went from a mp70 to the 78/75 on a rear mount and it spools the same as the mp70. If you are doing a front mount I would keep it.

 

Really? That's interesting. On my camaro I had a 5.3 with a 75/75 borg warner (s475 83mm turbine OD) but that was with a T56, it was much lazier than I had hoped. That was my reasoning for wanting to swap to a small turbine on the truck. What converter did you guys have? I'll probably do the circle d 3200

 

I had a 3200 but I just switched to 3600. Mine is a rear mount in a s10 so it was lazy in first gear. If I had a front mount the 3200 would have worked pretty good. My shift extensions were too low too. I have a 3200 in my Silverado with pt7675 an it hits boost almost instantly.

 

is this a T4 flange

 

Wastegate spring plays a major role in spool time on my setup...heavier the spring quicker it spools. I'm running the circle-d 3600

 

I have a brand new 76 I'd be willing to trade.

 

I've got two used on3 76s. Perfect shape. No shaft play or anything. I'd trade you one plus cash or both for your one 78.

 

Sold! Mods please close thread