BAlford Posted July 2, 2002 Share Posted July 2, 2002 From what information we got from you all last week it seems that when we build an engine for our car we will have to decide if we are going to use a blower or not before we build the engine. Our goal is to have a car that we can drive on the street with and A/C. We would like to keep the idle under 1000 RPM. It would be nice to burn regular gas but not necessary. We would like the have some "WOW" when the hood is raised. The previous owner of our car does not know any history on the engine. So, we are going to start with another engine that we have and build from there. This will allow us to continue to drive the car as it is. This rebuild may take a while because of the cost, goodby $2500.00 budget. Below is pictures of our car,you do not need a password: http://www.waskomtexas.com/zcar You can see a picture of an engine with a blower sent to me by Mike kZ at this web site also. What horse power could we expect from the following engines? Take the other block that we have and bore it .030 over, a new steel crank, Holly 4 barrel 650 CFM, 9.5 to 1 compression, a cam that will allow an idle under 1000 RPM, Dart heads and we are using the exaust headers that we have on the car. Take the other block that we have and bore it .030 over, a new steel crank, Holly 4 barrel 650 CFM, 7.5 to 1 compression, Holly low profile blower, a cam that will allow an idle under 1000 RPM, Dart heads and we are using the exaust headers that we have on the car. If we go with a blower could we use the original heads and get about the same horse power? Quote Link to comment Share on other sites More sharing options...
Mike kZ Posted July 2, 2002 Share Posted July 2, 2002 I found this statement on your web site: "It had a tunnel ram and (2) fours, so I put a 6-71 weiand kit on it and totatlly reworked the stereo & alarm." If this engine originally had a tunnel ram and two 4 barrels, the compression is not as low as we thought. All you have to do is change the cam to work with the rest of the engine and you should be fine. Or you could go back to a tunnel ram for looks. I found this statement on anouther web page, it maybe something to consider: "Tunnel Rams: For the serious racer with a high compression engine build. If you don't have at least a 12.5 to 1 CR don't venture this way. You will not receive the full benefits and quite possibly never get the motor to run at idle with any throttle response off idle . This design requires a high compression engine. A high CR offers a low enough cylinder pressure (when the piston travels downward, naturally aspirated) for the air/fuel mixture to travel the distance." Quote Link to comment Share on other sites More sharing options...
BAlford Posted July 2, 2002 Author Share Posted July 2, 2002 I do not know what the "tunnel ram", I guess the 6-71 Weiand Kit is the blower that it had before I bought the car. What is the tunnel ram? I do not think that I would like twin carbs. Quote Link to comment Share on other sites More sharing options...
BAlford Posted July 2, 2002 Author Share Posted July 2, 2002 I don't think that I want the tunnel ram. I could start with cam, Holly carb and manifold. However, the engine is still a guess without opening it up. At this point I would rather drive what I have till I can get another motor built that I know what I have in it. Quote Link to comment Share on other sites More sharing options...
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