[FrogLightGt]

Hello everyone. I have a 73 opel gt with a stock 1.9L. Soon I am planning to complete a total rebuild of my motor with new bearings, rings, gaskets timing chain etc. I was just wondering how much horsepower a freshly rebuilt stock 1.9 rotating assembly could handle. I am considering building a custom turbo efi setup based off of the stock efi manifold using a megasquirt and larger injectors and what not. I was wondering how the stock 1.9L holds up to boost and how much boost I could get away with running on a fresh motor. Any information would be greatly appreciated. Andy

 

[FrogLightGt]

Wow. You guys rock. I was not aware that my 1.9L had a forged crank and rods. That is really awesome for a stock four banger. I am new to opels and it seems the more I find out about my little beast the more I love her. So I suppose that before I start using forced induction I am gonna have to drop a little money into getting my block prepped. I am gonna get forged pistons and have my bottom end balanced and have my head ported matched to my intake manifold and polished. I have been planning on finding out the specs on the head and connecting rod bolts and checking to see if ARP makes stronger bolts to replace them. I have also been tinkering with the idea of having a copper head gasket made. I have two questions.... I was wondering if anyone knows were I could get stiffer valve springs and stronger rocker arms. I suppose I could have the stock rockers shot peened and freeze tanked maybe. I was also wondering if I could run 9.0:1 compression with boost if i had my EFI tuned properly... Thanks Again... Andy

 

[FrogLightGt]

Andy
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