Now The Turbo T Is Packing…

Well, my first impression of the new 10” (300 stall) was so-so. But, this was on an industrial road with lots of traffic. However, after getting to drive the car home, and around last night, I was much more pleased with the overall performance.

-The car gets rolling about the same as it ever did. Nowhere near as sluggish off the line as my Brother’s car with a TCI 10” (Behind a 383 Chevy), which was my primary worry.
-The trans shop was saying that the car would feel like it is always slipping during cruise. But, honestly it was just a minor change without the lock-up on.
-When brake stalling (power braking etc.), it is building about 500rpm higher & 3psi more boost before the tires break free. The rear brakes don’t hold well (looking into this) and the 17s aren’t too sticky, which doesn’t help.
-Holy shiat!... Does this thing ever get out of the hole now. It really has changed the dynamics of the car off idle and from a roll. The car zips up to 4000rpm right quick. Had the thing sideways a bunch of times in first. It never used to do this with the old 1800 stall.
-On the highway the lock up brings the car right down, and the engine just hums along about 500rpm lower than it used to at 120km/h (err…75ish mph), which is a vast improvement given the 3.73s and the 25.7” tall tires. Used to spin closer to 3K. The reduced engine speed have dropped my cruising EGTs to below 1250*F, nice!
-About the only things I don’t like are how the car rolls back a bit on a hill when the brakes are released… loose! And that when zipping around and dumping off of the go-pedal, the revs fall really quickly and seem to almost stall the car out.(revs drop below 500rpm). And lastly, after the car gets really hot the idle speed climbs to close to 700rpm… which increased my vacuum readings by about 2 inches of mercury. Still on the idle, it is a little more erratic than before, I imagine it is from the reduced inertia on the backside of the crank, right?

I used to think that I had some sort of pre-turbo leak my 1st gear spool was so slow… Boy, was I ever wrong! I think this is money well spent. I might see 12s, here’s to hoping. :beer: