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411 swap questions

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Old Jul 5, 2013 | 10:15 PM
  #1  
fireburdluvr85's Avatar
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From: wallingford,ct
Car: 91 formula ws6
Engine: 355 tpi OBDII
Transmission: 4l60E
Axle/Gears: 2.73 with 4th gen brakes
411 swap questions

#1 - can i wire my cs-144 for use or am i out of luck?
#2 - what fuel pressure should i use with my bosch III 24 lbs injectors
#3 - why is it that it wont run with my 3.5" maf from a 2001 van but will run great with my 98 blazer 3" maf?


i built my own harness. i have a snap on modis for most pin out information and datalogging. i read the 22 pages for the swap and to be honest my head still is spinning a year later. lol. ive only run this on my engine stand. i cant seem to get a tps signal correct and i just need to verify the wiring.

Last edited by fireburdluvr85; Jul 6, 2013 at 06:25 PM. Reason: figured out that ?
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Old Jul 6, 2013 | 12:38 PM
  #2  
fireburdluvr85's Avatar
Thread Starter
Senior Member
 
Joined: Apr 2007
Posts: 668
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From: wallingford,ct
Car: 91 formula ws6
Engine: 355 tpi OBDII
Transmission: 4l60E
Axle/Gears: 2.73 with 4th gen brakes
Re: 411 swap questions

If I posted in the wrong spot can a mod move it.
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Old Jul 8, 2013 | 02:05 AM
  #3  
watajob's Avatar
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From: Location, Location!
Car: 92 T/A 'vert
Engine: Mild .040 over L98 4 bolt mains
Transmission: Mostly stock 700R4, 2600 Vigilante
Axle/Gears: LS1 3.42
Re: 411 swap questions

I dunno' about 1 or 3 but I'm thinking that a 24 ain't nowhere near large enough injector for a 400 unless you can get it to fire at 90 PSI. I'd say a 36 will be necessary unless you're building a motor for a tow truck.
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Old Jul 8, 2013 | 05:46 AM
  #4  
fireburdluvr85's Avatar
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Joined: Apr 2007
Posts: 668
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From: wallingford,ct
Car: 91 formula ws6
Engine: 355 tpi OBDII
Transmission: 4l60E
Axle/Gears: 2.73 with 4th gen brakes
Re: 411 swap questions

No more 400 here. Just a mild 355. I currently have 24 lbs Bosch III injectors on my TPI and it does run at 39 psi. I'm ironing a few bugs then having a tune done. I have an afpr from south bay so I'll crank pressure up as needed. I'd be happy with 325 HP. No idea what engine makes at this point. When funds allow and that level of power doesn't cut it, I'll seek out further restrictions.
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