PISHTAS turbo build

Brandon Weaver said
This surprises me. I thought the choke removed would have dropped it down to 15-17, but maybe the fact that your intake and exhaust still bolt together is helping this? and probably your exhaust is a bit hotter under the intake from turbo backpressure?I dunno, no matter though, that's great. What kind of mileage were you getting before? I bet EFI would make it even better :evil3:

...(I can't remember, did you run 2.25 exhaust and supersix distributor as well?) you had a stock engine. At best you had a stock supersix.

Mittens will be missed.

The kickdown rod was a big letdown for me too. I was almost sure they were made of gold. I had a stock slant, with electronic ignition modified from the 1968 original points dizzy. It had 1 7/8" exhaust, a straight through muffler, and a Weber 38/38 on top of a Supersix manifold. The Weber allowed me to ditch the kickdown mod because it faces the same way as the Holley 1920.

I originally got about 17mpg on average with the 2bbl weber so it's about the same as when the turbo went in. No loss. EFI is a definite thing I'm thinking of, if I had another intake around to build one.

Right now the exhaust is all swapped to a 2 1/4" system for about 4 feet, then opens out to 3" till it exits the rear bumper. 2 1/4 was just easier to mate with the turbo flanges and fit nice. The choke is not effecting things much. The car is difficult to keep at idle in the morning, but it just requires sitting at idle with the revs over 1k rpm to keep it running for about a minute, then it will maintain idle, but that's not fully warmed up. I'm sure if I let it warm up all the way the mileage could be better. I have some more control cables and a really good idea for a functional turbo choke that will not get in the way, and I'll have more on that later.

The fact that my intake and exhaust are still mated may give me a temperature advantage for that, but I'm not sure if it makes a difference.

I may change the cam but every thing I get back to on reading says that the stock cam is pretty decent for turbo use. I feel like leaving the compression and a few other things alone before I went turbo was a good idea, rather than a hinderance. And Merry christmas as well.;