vs using the starter relay etc in the f body?? Does the computer need to know car is cranking?? Or will it know based off of CPS?

Dave

 

great question, i never thought about wiring the starter.

 

Unless computer needs to see crank signal of some sort, you could just take the crank hot off the solenoid to the GM starter, easy as pie. IF the ECM doesnt need to see a crank signal. I dont see any wires where it does, but i'll wait for the more seasoned to reply.

Dave

 

next hurdle is using the GM PS pump w/ the Ford rack Im gonna have a high pressure line fabbed up and see how she goes.

Dave

 

GM pump w/ Ford rack is no problem, that's what I'm doing

I'm also using the GM A/C compressor, accumulator, and condensor with the Ford evaporator..

 

Several of the RX7 guys have used Ford solenoids for their setups. No problemo.

 

sweet, so basically retain entire ford starting system, take the ign. start hot from solenoid to GM starter?

Brains, who made the high pressure PS line for you?

Dave

 

Me. I haven't made them for this car yet, but the lines are trivial. For the g/f's turbo car, I made lines from -6AN stainless braided line, and will probably do the same for this car. The fittings and hose ends are readily available items from Aeroquip, Earls, Russell, etc.

 

the power steering fittings arent some special fittings??

Dave

 

they sell adapters to go from the fittings needed for boxes and racks to -6

 

excellent.. YOu wouldnt know the part #s or the rack and pump thread sizes would you?
Dave

 

yeah , would you ???

 

I have no idea. I weent to my local speed shop and said I have a late model steering box in my Camaro and he knew which ones I needed.

 

I am using the F-body starter, but I am using my 1970 Corvette wiring to actuate it (which also bypasses one of the VATS features). The PCM doesn't need the relay to know the engine is cranking.

 

im hoping i can bypass that in HPT from the get go.
Dave

 

The PCM determines cranking from engine RPM only, I think.. Otherwise you wouldn't be able to easily bump start manual trans cars

 

Im running one in my RX7 because I was not getting enough current to pull in the starter brushes on 110 degree days. Has NEVER not started with a racing ford soleniod.

Only problem is that the starter drags and will prematurely wear the starter, as well as bearings and such with 1500-2000rpm for the first 1.5 seconds, vs 1000 rpm.

-Jason

 

I plan to use a Ford solenoid with mine. I had it set up that way with the 350 prior to the swap. My battery is in my trunk. I Have placed the solenoid near the battery and then hav 4 gauge welding cable running from the switched side of the solenoid to the starter. On the starter I have a jumper directly from the starter to the stock solenoid. I Have a totally seperate 10 gauge wire that runs from the unswitched side of the solenoid up to a power distribution point at the front of the car. Using this set up the heavy 4 gauge is only live when I am cranking the motor. The 10 gauge carries power forward and also charges the battery. This worked very well with my previous motor, I have talked with John at Speartech about it and he believes it will work well with the LS1 as well. I am not at that point of my swap yet so I am only speaking of what I believe and plan will work. The other thing I am considering since I already have the battery back there is running the power to my fuel pump relay from the same place my 10 gauge wire is coming from so only the relay trigger wire has to come from the front of the car. The shorter run should ensure I always have plenty of juice for the fuel pump.

Pat

 

thats a lot of distance to carry a lot of current but let me know how she goes. I used 0AWG welding wire only 2' and i had issues at times.

Dave

 

i also ended up using the firebird fusebox as it'll be easier to wire everything using this central "relay station". I will loom everything and run it into inner fender I think to keep it neat.


Dave