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| 3800 series 3 swap (Page 2/3) |
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Jncomutt
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MAY 02, 10:40 AM
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Mounting the pedal is no problem, its a simple plate to offset the mounting holes. The pedal is wired almost fully to the TB, so its a simple wiring job too.
You can use the S3 rail with only 1 hose up to the rail by using a corvette fuel filter mounted down by the tank.
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Jncomutt
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MAY 02, 10:51 AM
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Jncomutt
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MAY 02, 10:54 AM
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Dennis LaGrua
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MAY 02, 12:54 PM
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| quote | Originally posted by Jncomutt:
Mounting the pedal is no problem, its a simple plate to offset the mounting holes. The pedal is wired almost fully to the TB, so its a simple wiring job too.
You can use the S3 rail with only 1 hose up to the rail by using a corvette fuel filter mounted down by the tank. |
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I don't believe that the Corvette gasoline filter has a rising rate fuel pressure regulator build in, in other words a FP regulator that raises the standard operating fuel pressure above the boost level so the engine doesn't go lean. Going DBW may involve deleting traction control and PCM fuel regulation functions. While program modification can most likely circumvent these I feared that DBW would dampen throttle response a bit so I took the simple approach and wired using a 2003 GTP PCM, the 3800SC regulator by the tank and a cable operated N* TB. I would appreciate hearing how you addressed these issues especially the traction control function. ------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "
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Jncomutt
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MAY 02, 01:11 PM
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Considering the S3 PCM is designed for static fuel pressure on the L32, it works exactly as intended. The throttle control table is tunable, as are abuse modes & torque management
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Guy Fiero in FL
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MAY 02, 07:30 PM
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| quote | Originally posted by Jncomutt:
Considering the S3 PCM is designed for static fuel pressure on the L32, it works exactly as intended. The throttle control table is tunable, as are abuse modes & torque management |
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What year corvette is that fuel filter?
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Dennis LaGrua
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MAY 02, 09:19 PM
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| quote | Originally posted by Jncomutt:
Considering the S3 PCM is designed for static fuel pressure on the L32, it works exactly as intended. The throttle control table is tunable, as are abuse modes & torque management |
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The blower generates boost and if you have 43psi of static fuel pressure and 8 psi of pressure in the manifold it becomes 35 psi at the injectors unless the system is set up for fuel management at the fuel pump in the tank where you can lengthen the duty cycle and increase pressure there. Just a guess on this, but the 3800SC series II controls, although more basic, seem more workable to me and easier to tune.. ------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "
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Jncomutt
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MAY 03, 06:33 AM
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| quote | Originally posted by Guy Fiero in FL:
What year corvette is that fuel filter? |
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2000 corvette.
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olejoedad
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MAY 03, 07:05 AM
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The next question is what year Fiero are you swapping the drivetrain into?
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KissMySSFiero
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MAY 05, 08:23 AM
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| quote | Originally posted by Dennis LaGrua:
The blower generates boost and if you have 43psi of static fuel pressure and 8 psi of pressure in the manifold it becomes 35 psi at the injectors unless the system is set up for fuel management at the fuel pump in the tank where you can lengthen the duty cycle and increase pressure there. Just a guess on this, but the 3800SC series II controls, although more basic, seem more workable to me and easier to tune..
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the fuel pressure when using the corvette filter should be a constant 58 PSI. It's does not have a vacuum/boost reference.
How does the series 3 regulate fuel pressure? Is it expecting a constant pressure, or does the PCM modulate the pump to reduce/raise pressure as needed? I would have assumed it expects a constant pressure
Where in FL are you?
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SSFiero@Aol.com[This message has been edited by KissMySSFiero (edited 05-05-2022).]
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