Quote:
Originally Posted by DFRESH
Welcome to the site! Great car--and the motor sounds sweet---especially for an LS motor. I think you will find a more responsive audience here, especially since it's a 69 Camaro---we only have a few of those on this site.
Looking forward to more updates and some additional track photos when you have them.
Doug
|
Thanks Doug!
Here is more detail on the 4-barrel TB set up. The throttle body is just an air valve on this set up. The fuel is injected into the intake ports on the heads through the injectors mounted on the base on the single plane intake.
We used a FAST 4-barrel TB on a GM LS7 single plane intake. The butterfly's open inward on the primary and secondary side, and are manually controlled rather than drive by wire. The arm on the TB has multiple mounting positions so you can control how fast the butterfly's open. I built a custom throttle linkage setup that attaches to the stock Camaro accelerator pedal. This worked out well...the throttle has a good progressive feel and does not come on too fast and is totally adjustable.
The FAST throttle body has a TPS (throttle position sensor) and IAC (idle air control) built in. We installed a MAP (manifold absolute pressure) sensor inside the single plane intake and an IAT (intake air temp) sensor in the air cleaner base. The engine is set up with a speed density tune.
Homemade throttle return spring bracket mounts to the front two screws on the TB.
The homemade throttle linkage (red rod) connects to the stock Camaro gas pedal
"idle air control" on the left, "throttle position sensor" on the right
Here is a shot of the "intake air temp" sensor in the air cleaner base
The bell housing for the T56 is being delivered tomorrow. This weekend I plan to start on the trans swap (muncie to T56 Mag)
