Turbo
The only reason limit stopped upgrading the 86-87 turbos for the hot airs was because of the absense of the carbon seal backing plate. From my research I found that for the most part the later turbo's being designed use dynamic sealing. The difference between the two. Remenber in the earlier days of turbo charging when most cars were carb'ed? Well a carbon seal works best for a draw through type induction system (Air being drawn trough the the turbo into the induction sytem). A dynamic seal found on most modern cars, since most use intercoolers, are primarily used on push through designs and do not seal very well for our draw through type systems. I recently found a used 86-87 TA49 here on the board with a .82 A/R housing that was in need of a rebuild. Dissasembled it and it was carbon sealed. I bought a rebuild kit, reclocked the turbo, mounted it on my test engine I have on the stand and made the necessary measurements. I then cut off the end of the turbo and adapter and had a freind weld the two pieces together. I bought a throttle body adapter from turbo6x2 (Thanks Jamie !!) to straighten up the throttle body. All I can say is wow!!! I don't really have enough stall for the big .82 A/R hosuing (2800 need 3000-3200) but this sucker is pullin like a mother up top. Only probelm is with the extra air flow from the big exhaust housing my little 36lbers are runnin out real quick. Anyway sorry to keep rambling but I just had to get it out. I look to find another carbon sealed turbo and build my own bigger turbo in the future.
