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02-02-2009, 11:41 PM | #1 | |
Registered User
Join Date: Jan 2009
Location: White Creek NY
Posts: 14
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Re: Tbi swap build thread
Quote:
Headlights Turn signals/brakes etc Cig lighter Radio Horn That's about all there is to this thing. There are a grand total of 4 wires going to his fuse box now! Pretty simple. I was thinking of using the red 10g hot in from the power strip for the BAT side a switch. Purple 10g for to starter on START terminal of said switch A jumper from that wire to fuse block, C9 prple/wht on the other side of that fuse. New 10g wire from ACC or RUN terminal on ignition switch to power up new fuse block. And then my wires needing 12v in RUN can be hooked to new fuse box. Does this sound acceptable? Like I said, I am no wiring master. I traced a few of the unknowns left today and found the green wire was temp sender on head (was hooked on old engine) went to the gauge cluster (that was what I was unsure of on that one) Tan that goes to nowhere, also goes to gauges All VSS wires go into cluster harness Blue and light green wires from trans....blue to switched hot in fuse and green doubles around and heads back out to engine bay, no clue from there but guess it's too back-up lights as cj suggested? Also forgot brown wire last night. Goes from alt to cluster for volt gauge I reckon? And fuel pump harness has a pink wire from pump to the cluster that I initially thought was a hot but if power is Tan/white via orange, this must have been for the fuel gauge? The rest I think are pretty much known. Thanks a bunch guys. Can't wait to fire her up! Going to button it up and plumb some fuel soon just to see if it will ignite. After that it gets blown apart and goes out for paint. Here is the rig it's in. |
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02-02-2009, 11:48 PM | #2 |
Registered User
Join Date: Jan 2009
Location: White Creek NY
Posts: 14
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Re: Tbi swap build thread
Forgot to ask. I have to relocate the knock sensor for header clearance. Is the fuel pump provision acceptable even though it's not machined or open on this block? Don't see anywhere else it will fit.
Thanks! |
02-03-2009, 01:45 AM | #3 |
Registered User
Join Date: Oct 2003
Location: OC CA
Posts: 1,374
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Re: Tbi swap build thread
CUDA
I am still drawing few more diagrams based on your last response. I think that you are almost there. Nice truck! /?RF
__________________
"The Beast" 1975 Chevrolet C20 longbed 350/700R4! with 3inch body lift Dual Flowmasters Super 40's! TBI retrofit completed (2007-07-29) New 383CID (+030) 08-304-8 9.5:1CR x36,005 (2012-12-17) |
02-03-2009, 02:18 AM | #4 | |
Registered User
Join Date: Oct 2003
Location: OC CA
Posts: 1,374
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Re: Tbi swap build thread
Quote:
Supply line - 3/8" is used by Fuel Pump (FP) to supply fuel to TBI inlet. Please make sure that you have FP that can supply a minimum of 20 PSI. Do not go to crazy with fuel pressure as excess fuel will be bypassed and returned back to the gas tank via return line 5/16" or 3/8". Excessive fuel pump pressure tends to increase fuel temperature, which is not good - this will increase fuel vapor pressure. Third fuel line is connected to charcoal canister that connects to TBI (1/4") line. Main DC power distribution. //RF
__________________
"The Beast" 1975 Chevrolet C20 longbed 350/700R4! with 3inch body lift Dual Flowmasters Super 40's! TBI retrofit completed (2007-07-29) New 383CID (+030) 08-304-8 9.5:1CR x36,005 (2012-12-17) Last edited by rfmaster; 02-03-2009 at 02:51 AM. |
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02-03-2009, 03:06 AM | #5 | |
Registered User
Join Date: Oct 2003
Location: OC CA
Posts: 1,374
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Re: Tbi swap build thread
Quote:
You can relocate Knock Sensor (KS) to the other side, but it must be screwed into oil pan rail (water jacket drain plug) to be effective! KS is a calibrated microphone, tuned for a knock frequency found in a specific engine family. //RF
__________________
"The Beast" 1975 Chevrolet C20 longbed 350/700R4! with 3inch body lift Dual Flowmasters Super 40's! TBI retrofit completed (2007-07-29) New 383CID (+030) 08-304-8 9.5:1CR x36,005 (2012-12-17) |
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