Car ran an 11.03 quarter (adj.) @ 122.68 MPH with 110 octane and slicks with the TA-61 turbo, I am expecting it to run in the mid 11's with the TA-60 and to me it is much more streetable than the TA-61. With street tires and pump gas it runs 12.5 all day long. ET's are not my biggest concern. 12.5's is plenty fast for me, I am looking for better response from lower RPM's without the worry of damaging my trans and without sacrificing gas milage.
The trans has been rebuilt along with the addition of a B&M shift kit and a trans cooler. Currently, the car is capable of 550 HP and 650 ft/lbs. rear wheel horsepower with 20lbs. of boost and 110 octane. Considering that it ran an 11 flat with nearly the same set-up I am not too convinced of the benefits of adding a higher stall for better ET's as the stock Monte brakes will barely hold the car now off the line. The D5 I have has been upgraded considerably and stalls at a true 2400.
Is adding the S-10 rear wheel cylinders along with a proportioning valve a MUST if I decide to go with a higher stall? And if I decide to go with the 1998-up Blazer 2WD front brake set-up will I even need a proportioning valve for the rear wheel cylinders? And what "soft shoes" should I use for the rear brakes? I have been told the stock rear brake shoes are made of hard materials and that I need to go with a softer brake shoe in the rear.
BTW, as stated earlier, the trans is the BRF code 200R4, what is the difference and is there any advantage to having this trans? And what spline is the GN BRF 2004r, 27?