Pontiac Grand Prix Forums : Grandprix
 

Grand Prix Forums is the premier Pontiac Forum on the internet. Registered Users do not see the above ads. Please Register - It's Free!

Pontiac Grand Prix Forum - Welcome Register today! Contact us!

Results 1 to 11 of 11

255lph without Hotwire swap?

This is a discussion on 255lph without Hotwire swap? within the General Tech Discussion forums, part of the W Body Tech category; was wondering if anyone had any input on this topic I was hoping to be able to run the 255 ...

  1. #1
    GT Level Member Beelzeboul's Avatar
    Join Date
    Mar 2011
    Location
    Racine
    Posts
    297
    Chats
    6912

    Default 255lph without Hotwire swap?

    was wondering if anyone had any input on this topic I was hoping to be able to run the 255 Fuel Pump I purchased without having to upgrade the wiring right away
    if it is something that is needed It will be my next purchase but if without tune and mods I will be able to run the stock wiring safely until I upgrade injectors in a couple weeks at which point I would just order the hotwire kit with injectors to save myself some shipping

    this was suppose to be a replacement and not so much an upgrade thats the reasoning for wanting to wait on the hotwire
    I'm sorry officer I didnt know I couldn't do that

  2. #2
    Pretty colours matt5112's Avatar
    Join Date
    Jul 2009
    Location
    Canada
    Posts
    22,580
    Chats
    56056

    Default

    Stock wiring sucks for stock fuel pump.

  3. #3
    GT Level Member Beelzeboul's Avatar
    Join Date
    Mar 2011
    Location
    Racine
    Posts
    297
    Chats
    6912

    Default Re: 255lph without Hotwire swap?

    lol ok so I'll take that as a you can but you shouldn't which was pretty much what I read

    the stock wiring is shotty which causes the stock pumps to fail but most say that the pumps themselves are pretty solid

    so maybe just a worse case scenario when they say running a larger pump can cause electrical issues as it draws more power...blowing fuses or relays constantly?

    the stock wiring would have to hold out for about a week and a half before the hotwire kit arrives I'm just kinda wondering if it would be safe to drive in the meantime or if doing so could cause something catastrophic
    I'm sorry officer I didnt know I couldn't do that

  4. #4
    Pretty colours matt5112's Avatar
    Join Date
    Jul 2009
    Location
    Canada
    Posts
    22,580
    Chats
    56056

    Default Re: 255lph without Hotwire swap?

    your fuel pressure might drop off, and make tuning hilarious.

    But you should have a fuel pressure gauge.

  5. #5
    GT Level Member Beelzeboul's Avatar
    Join Date
    Mar 2011
    Location
    Racine
    Posts
    297
    Chats
    6912

    Default Re: 255lph without Hotwire swap?

    wouldn't be doing any tuning till the hotwire kit was on.

    wouldnt just giving it a fuel pressure test anytime I think it might be a concearn viable had never read anything on that being one of the things that should be constantly
    monitored right now I had really only been scanning and watching trans temps misfires intake temps knock retard boost vac and fuel trims
    I'm sorry officer I didnt know I couldn't do that

  6. #6
    Pretty colours matt5112's Avatar
    Join Date
    Jul 2009
    Location
    Canada
    Posts
    22,580
    Chats
    56056

    Default Re: 255lph without Hotwire swap?

    then what does it matter?

  7. #7
    GT Level Member Beelzeboul's Avatar
    Join Date
    Mar 2011
    Location
    Racine
    Posts
    297
    Chats
    6912

    Default Re: 255lph without Hotwire swap?

    what does what matter?

    lol ok in my head worse case has two scenario's
    a. the new pump will put so much drain it burns out my alternator and every fuse/relay on the way to it
    b. involves it drawing so much power it heats the wires to the point of coating melting and having an arc in my fuel tank = BOOM

    best case scenario it will be fine on the stock wiring without tuning and will blow out a fuse before doing any damage to the pump or electrical system

    it seems like the whole system as far as what could short is contained inside the canister free from gas so that might be alarmist on my part but I hope you understand what my concerns are I figured someone might chime in hey Ive had one on stock wiring for 20k miles np and put me at ease
    I'm sorry officer I didnt know I couldn't do that

  8. #8
    Pretty colours matt5112's Avatar
    Join Date
    Jul 2009
    Location
    Canada
    Posts
    22,580
    Chats
    56056

    Default Re: 255lph without Hotwire swap?

    it wont hurt the alt LOL.

    it might burn out a fuse? but i doubt it.

    more likely you'll just have weak fuel pressure.

  9. #9
    GT Level Member Beelzeboul's Avatar
    Join Date
    Mar 2011
    Location
    Racine
    Posts
    297
    Chats
    6912

    Default Re: 255lph without Hotwire swap?

    muchos gracias senor

    Ill take it easy on her till the hotwire kit comes in
    I'm sorry officer I didnt know I couldn't do that

  10. #10
    Moderator BillBoost37's Avatar
    Join Date
    Jul 2009
    Location
    Enfield CT
    Posts
    17,217
    Chats
    45212

    Default Re: 255lph without Hotwire swap?

    The stock wiring isn't shoddy. It's undersized for modding. That's why you put on a hotwire kit. It increases the size of the wire from about 16-18 gauge to about 10-12 gauge.


    If Dave feels 60% throttle is 100%, what does he tell his wife.

  11. #11
    Pretty colours matt5112's Avatar
    Join Date
    Jul 2009
    Location
    Canada
    Posts
    22,580
    Chats
    56056

    Default Re: 255lph without Hotwire swap?

    Explain the stock IFR curve and 1:1 referenced FPR.

Similar Threads

  1. 255lph pump group buy!
    By Tengis in forum Group Buys
    Replies: 1
    Last Post: 09-20-2011, 06:15 PM
  2. Fan hotwire
    By Sandman in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 11
    Last Post: 09-13-2009, 07:27 PM
  3. Venturi modification of Walbro 255LPH
    By Lysander in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 0
    Last Post: 04-08-2009, 01:49 PM
  4. *CHEAP* Fuel Pump Rewire/Hotwire ??
    By TehGTP in forum 3.8L V6 Supercharged (L67)(L32)
    Replies: 19
    Last Post: 01-06-2009, 01:22 PM
  5. Hotwire the Fuel Pump
    By TommyGloves in forum General Tech Discussion
    Replies: 1
    Last Post: 08-11-2008, 09:19 PM

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •