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I made up a custom aluminum block that bolted to the existing holes. It is a weird shape and probably not conventional but it puts the pedal in about the stock location. My wire harness just plugged into the existing pedal. Mine came from an 09 Vette. Pedal and computer and a harness from PSI
I made up a custom aluminum block that bolted to the existing holes. It is a weird shape and probably not conventional but it puts the pedal in about the stock location. My wire harness just plugged into the existing pedal. Mine came from an 09 Vette. Pedal and computer and a harness from PSI
Gordonm,
Interesting that you didn't use the TAC Module? I am planning a PSI harness as well. It will be great if I can plug into the harness and eliminate the TAC.
Pre 07 will need a TAC, no way around it.
I just drilled the firewall to position to position the pedal correctly.
TAC can be mounted anywhere it will fit ie, on the firewall.
Pre 07 will need a TAC, no way around it.
I just drilled the firewall to position to position the pedal correctly.
TAC can be mounted anywhere it will fit ie, on the firewall.
Garys 68,
For clarification a pre 07 PCM or wont support a TAC-less installation or more that that?
Around 07 GM integrated the TAC into the ecu.
DBC could be used on all ecus up to about 02 (411 ecu).
Some ecus up to about 05 could support DBC too.
Cant tell from the pic, but that looks like the 00-02 truck TAC. Which ecu are you using?
Around 07 GM integrated the TAC into the ecu.
DBC could be used on all ecus up to about 02 (411 ecu).
Some ecus up to about 05 could support DBC too.
Cant tell from the pic, but that looks like the 00-02 truck TAC. Which ecu are you using?
I plan to purchase a harness / ECU from PSI so I am thinking if that is all it takes to eliminate a TAC I can go for a later year pedal? Or am I stuck because of the year of my motor?
Year of engine depends on it having the earlier 24X crank and 1x cam signals or the later 58x crank and 4x cam signals. You'd have to change parts or use a converter box to use the later model computer with an earlier model engine.
Last edited by lionelhutz; 12-17-2013 at 07:27 PM.
Year of engine depends on it having the earlier 24X crank and 1x cam signals or the later 58x crank and 4x cam signals. You'd have to change parts or use a converter box to use the later model computer with an earlier model engine.
Financially probably not worth it? Interesting though how once a pedal and tac are labled Corvette they are $500 and when they are labeled truck they are $100 ;(
Why don't you state what year, model motor, pedal, tac, etc you have, what your goals are, and we can give you options.
Btw, are you aware that pedals, tac, ecu, and harnesses are not interchangeable?
Ya, probably. The converter boxes are around $300 I think and I'm not even sure they go older engine to newer electronics or just the other way around. You could pull the crank and change the wheel on the back of it. I think you'd have to put a newer timing chain cover and a cam gear with the 4-pulse notches on it to get the cam signal. It might also require a cam to go from the 3-bolt to single bolt for the gear. I just can't recall the differences with the gear bolts off hand. Hardly worth the effort just to get rid of the TAC module.
One other thing you might want to clarify with the ecu programmer and harness maker...which TPS you need. Not sure if the cable and DBW TBs use the same one.
One other thing you might want to clarify with the ecu programmer and harness maker...which TPS you need. Not sure if the cable and DBW TBs use the same one.
I made up a custom aluminum block that bolted to the existing holes. It is a weird shape and probably not conventional but it puts the pedal in about the stock location. My wire harness just plugged into the existing pedal. Mine came from an 09 Vette. Pedal and computer and a harness from PSI
What does that block look like, I have a c6 pedal going into my 1978.
T
his is the block I made, you might have download the picture then zoom in to see it better. I used two pieces of aluminium and a piece of composite deck in middle. Then bolted it through the firewall using the original nut plate at the top and one bolt and nut on the bottom.
12-16-2013, 04:56 PM
DBW Pedal Installation
