Post by nikbristow on Oct 31, 2013 15:26:34 GMT -5
Hey everyone,
My name is Nik. My brother and I have been into Chevettes for a long time. Dad had one ('76) when we were kids. We had a couple when I was in high school ('83 Scooter, '85 CS). I've nearly purchased several more over the yeas. Anyway, there's talk now of buying one, fixing it up, and throwing some speed parts at to make it more fun. A family project.
Here's the thing. My brother works for Procharger, so the thought is to add a blower to the stock motor and see what happens. His tech guys think it should be able to handle 8-10psi, but I have my doubts. Anybody have any experience with boost on these engines? Figure I'm looking at studs and a head gasket at the very least.
Is anyone building Chevette engines to handle boost?
And lastly, is there a list of accepted mods to the stock power plant (cam, springs, forged pistons, bigger valves etc) and their effect on performance and reliability?
I'd love to see 100hp on the stock engine before going to boost. Is that doable? The techs estimate a 50% gain from there running 10psi at 6k RPM. 150hp at the red line would be quite a bit of fun in that car.
I realize that much power is going to require all kinds of other improvements, rear-end, tranny, brakes etc. But mostly I'm just interested in going fast, first. Who isn't?
Oh, and can anyone provide me with crank pulley diameter on a stock motor? We don't currently have a Chevette on which to measure. But we're looking for one. Need it to figure pulley ratios and whatnot. Oh, and the Chevette engine turns clockwise, correct?
Thanks for any help in advance,
Nik
My name is Nik. My brother and I have been into Chevettes for a long time. Dad had one ('76) when we were kids. We had a couple when I was in high school ('83 Scooter, '85 CS). I've nearly purchased several more over the yeas. Anyway, there's talk now of buying one, fixing it up, and throwing some speed parts at to make it more fun. A family project.
Here's the thing. My brother works for Procharger, so the thought is to add a blower to the stock motor and see what happens. His tech guys think it should be able to handle 8-10psi, but I have my doubts. Anybody have any experience with boost on these engines? Figure I'm looking at studs and a head gasket at the very least.
Is anyone building Chevette engines to handle boost?
And lastly, is there a list of accepted mods to the stock power plant (cam, springs, forged pistons, bigger valves etc) and their effect on performance and reliability?
I'd love to see 100hp on the stock engine before going to boost. Is that doable? The techs estimate a 50% gain from there running 10psi at 6k RPM. 150hp at the red line would be quite a bit of fun in that car.
I realize that much power is going to require all kinds of other improvements, rear-end, tranny, brakes etc. But mostly I'm just interested in going fast, first. Who isn't?
Oh, and can anyone provide me with crank pulley diameter on a stock motor? We don't currently have a Chevette on which to measure. But we're looking for one. Need it to figure pulley ratios and whatnot. Oh, and the Chevette engine turns clockwise, correct?
Thanks for any help in advance,
Nik