#24595 - 10/24/07 04:37 PM
Re: Vortec 4200
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AG50Chev
Member
Registered: 08/23/05
Posts: 14
Loc: Tampa, FL
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Started my 50 Chev Pickup - 4.2 up this evening (on Spray). I have a Westers Tuned ECM. My problem is still with the Fuel - doesn't seem to be pumping properly. I modified a tank to use the In-Tank Pump from my donor, and I hear it come on when I turn the Key. Guess I'll have to check if it is pumping at all.... Does anybody know what to do with the two extra lines (Vacuum / Air) that go down next to the Fuel line?
Aaron
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If it's not broken, Break it
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#24596 - 10/25/07 04:54 PM
Re: Vortec 4200
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AG50Chev
Member
Registered: 08/23/05
Posts: 14
Loc: Tampa, FL
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I checked plenty of fuel on the rail (I smell like gas now). I checked the wiring - seems to be ok - as I can start it on spray. Did I miss a wire?
_________________________
If it's not broken, Break it
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#41137 - 05/01/08 06:46 AM
Re: Vortec 4200
[Re: efi-diy]
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Brian Bassett
Bulletin Board Only Member
Registered: 03/11/08
Posts: 2
Loc: southeast
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I hope nobody minds me summarizing, but I want to make sure I got everything out of this thread: 4.2 out of boneyard Flywheel from Jerry Clutch/Pressure plate/Tranny out of Colorado Either: EDIS and MS or GM electronics reflashed Oil pan relocation Trailblazer pedal OR cable TB
Is that right? Jeez it sounds like a lot of work.
Edited by Brian Bassett (05/01/08 06:46 AM)
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#41398 - 05/13/08 09:23 PM
Re: Vortec 4200
[Re: Brian Bassett]
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scotte
Bulletin Board Only Member
Registered: 09/26/06
Posts: 4
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i just got my 4200 swap running last saturday
its in a 98 jeep wrangler stock pcm,hptuners i have the stock speedometer (trailblazer) wired up and working
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#41420 - 05/15/08 06:32 AM
Re: Vortec 4200
[Re: Nexxussian]
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Mean buzzen half dozen A.K.A. Hank
Active BB Member
 
Registered: 09/23/04
Posts: 4585
Loc: Ca
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#41469 - 05/18/08 07:49 AM
Re: Vortec 4200
[Re: toyman01]
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scotte
Bulletin Board Only Member
Registered: 09/26/06
Posts: 4
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if anybody wants to check out my 4200 swap i have pictures up now
jeep 4200 vortec swap
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#41485 - 05/19/08 04:19 AM
Re: Vortec 4200
[Re: efi-diy]
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inline300
Active BB Member
  
Registered: 12/13/04
Posts: 460
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Scotte
Nice install...sucker looks like its supposed to be there. 
Should be fun.
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#41498 - 05/19/08 01:12 PM
Re: Vortec 4200
[Re: inline300]
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scotte
Bulletin Board Only Member
Registered: 09/26/06
Posts: 4
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transdapt 1420 is the 90 deg adapter i used but i had to carve away a couple of ounces of BLOCK so it would spin on
transdapt 1020 is the straight down adapter and that on looks like it would go on w/ no modifications but i didn't have the room for it
i used hp tuners to take the theft function out of the computer and yes the factory speedo cluster completly works
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#42035 - 06/17/08 04:07 PM
Re: Vortec 4200
[Re: efi-diy]
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Kerry Pinkerton
Active BB Member

Registered: 01/04/08
Posts: 123
Loc: Near Huntsville, Alabama
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Just read this entire thread. Not interested in swapping my 250 at this point but down the road....
That said, I'm NOT interested in the computer control. I saw one photo (Howell??) of an engine with carbs and what appeared to be a distributor running of a gear/cog belt from the front engine pulley.
Has anyone done anything like this? The intake manifold is easy. variable cam timing and how to defeat it?
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#42038 - 06/17/08 08:47 PM
Re: Vortec 4200
[Re: efi-diy]
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tlowe #1716
12 PORT ADVERTISER
Active BB Member
  
Registered: 04/01/04
Posts: 2347
Loc: Dysart, Iowa
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efi, tell us about the power it has in stock form. what rpms do you take it to? will it spin the tires from a stop. inquiring minds want to know. you know there is alot more people than us that want to hear.
i am impressed with the mileage. my engine is geared simular. 700r4/ 3.55 and 355/60-15 tires. almost the same rpms. i see around 18 at that 70 mph mark. tom
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#45076 - 11/11/08 02:39 PM
Re: Vortec 4200
[Re: inline300]
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buktooth
Bulletin Board Only Member
Registered: 08/04/08
Posts: 1
Loc: Ontario, Canada
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Hey guys I'm looking into building a variable pulsewidth modulator. It will allow you to hook up the vvt and change cam position dependant on the throttle position. Basicly tighter lsa(more overlap at full throttle) and wider lsa for idle and off idle. I will post it here if/when its completed.
Edited by buktooth (11/11/08 02:39 PM)
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