345ci Nitrous'd Notchback Progress Thread

Discussion in '1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-' started by 90lxcoupe, Jul 16, 2008.


  1. 90lxcoupe

    90lxcoupe Mustang Master

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    Lol thanks man, i appreciate it. my new kirkey seats will be here thursday, and im gonna order a heater core from LRS this week. Ill be excited to finally have heat in the car again.
     
    #241
  2. 90lxcoupe

    90lxcoupe Mustang Master

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    Well, kirkey seats are in, I updated the 8 pt to a 10 pt so the car wil be good to 8.50, annnnnd, i put a deposit on THIS!

    [​IMG]
     
    #242
  3. 1991notchbackLX

    1991notchbackLX Active Member

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    Red X of death!!
     
    #243
  4. 90lxcoupe

    90lxcoupe Mustang Master

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    fixed. i think you had to be a member of the nmra forums to view the other pic
     
    #244
  5. 1991notchbackLX

    1991notchbackLX Active Member

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    Awesome! Dart block? You going with forced induction this time around?
     
    #245
  6. 90lxcoupe

    90lxcoupe Mustang Master

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    yep 9.5 deck dart aluminum, going to do this one on motor too, maybe a little juice if it will help me squeeze into the eights
     
    #246
  7. Rick 91GT

    Rick 91GT SN Certified Technician Site Sponsor

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    Sweet...Alum huh? They can be a PIA to seal sometimes...

    How many cubes?
     
    #247
  8. 90lxcoupe

    90lxcoupe Mustang Master

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    Its a 427, lunati billet rods, lunati crank and JE pistons. I didnt really have my heart set on an aluminum block, but im getting the shortblock for less than what the block would cost after machine work, and there is no weight i can take out of this car anymore, so 100 off the nose is great
     
    #248
  9. NIKwoaC

    NIKwoaC 中國製造

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    I looked at that pic and I thought "that doesn't look like cast iron"...

    Sweet Jesus, I just spooged all over the inside of my pants. You owe me a new pair of pants! I'll settle for the old 345", though, and we'll call it even.

    Uhh, seriously though, what are you doing with the 8.5 deck motor? Is it for sale?
     
    #249
  10. 90lxcoupe

    90lxcoupe Mustang Master

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    Im gonna put the 8.2 deck motor up for sale towards the end of this summer and see what happens. I havent decieded on a price yet but when i do put a price on it im not going to take any lowball offers on it. If i end up losing a ton of money on it ill just put it in storage and keep it. Id really like to see what the small motor could do in a much lighter car
     
    #250
  11. 90lxcoupe

    90lxcoupe Mustang Master

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    Rick what do you mean when you say aluminum is hard to seal? You mean the rings?
     
    #251
  12. Boydster

    Boydster Active Member

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    Holy ****... 427 aluminum Dart. [speechless].:burnout:
     
    #252
  13. 90lxcoupe

    90lxcoupe Mustang Master

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    the long term goal with the car is to compete in drag weeks small block NA street class, i am hoping to run mid nines with the new motor after all the bugs are ironed out
     
    #253
  14. bentley429isBAC

    bentley429isBAC Well-Known Member

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    Bad ass Jeff, didn't know you were jumping on something like that this soon. Did you get the car back?
     
    #254
  15. 1991notchbackLX

    1991notchbackLX Active Member

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    Any chance you're selling the TFS Box R and going carb? I'd take it off your hands.
     
    #255
  16. 90lxcoupe

    90lxcoupe Mustang Master

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    Yea ive had the car back for a couple of weeks now, i still have to button up the dash and re wire all my gauges, works been pretty nuts and its been a little cold so ive been slacking on the car. I was planning on buying the stuff for the top end now and piecing together the shortblock after i got my taxes but when i saw this setup i took the plunge.



    Ill be using a CHI 4.0 on the new motor but i dont think this one is coming apart anytime soon, and if i do sell it, i am going to try and sell the thing as a package to someone that wants a turn key, proven 10 second street motor
     
    #256
  17. NIKwoaC

    NIKwoaC 中國製造

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    Oh man, I was going to lowball you. :D
     
    #257
  18. 90lxcoupe

    90lxcoupe Mustang Master

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    Slight updated, More Power...​
    So i went to a local dyno tonight, this all started a couple weeks ago my pump started sounding funny when it primed, and it was slowly dropping fuel pressure when cruising. I had a fuel filter sitting on the shelf so i swapped that in and the priming sound went back to normal, and the fuel pressure was where it should have been. This all happened the day before i was going to a local dyno day, the car made 384 hp the first pull, i pulled a total of 8 degrees of timing out of it cause it was detonating and power ended at 395.

    About a week ago i talked to my cam guy and he told me something was way off, that i had a bad fuel, i wanted to get the issue sorted out before this racing season so i rented a local dyno, and filled the tank with Sunoco 93 octane fuel, put the original timing map in it(total timing at 31*), and added 20% fuel to the top end of the VE table.

    I made my first pass and it pulled nice and smooth, the dyno operator told me it made 416 hp but it was running a little rich, so i took 10% out of the VE table for the next pull and it picked up 2 hp. The next pull i put another degree of timing in it and it made 420 hp. I tried putting 1 more degree in it and power started falling off. By this point, i was 35 minutes into my first hour and had basically done all i needed to do. I figured i would make a couple more pulls and keep playing with the timing, knowing that the trick flow stuff dosent need a ton of timing to make power i decieded to take a few degrees out of it. I backed the timing down to 27 degrees and it made 428hp and 393 ft/lbs.

    I was pretty suprised the car made over 400, ive had this car on 3 different dynos and it has made 390 on all of them, the peak came in at about 6100 and the motor held around 420+ hp till 6600. After 6600 the power falls off hard. I looked at one log i took of a pull and its looking like i could be running out of injector, the duty cycle in the upper RPM's shoots up to 92% just before power starts falling off
     
    #258
  19. Rick 91GT

    Rick 91GT SN Certified Technician Site Sponsor

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  20. 90lxcoupe

    90lxcoupe Mustang Master

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    Thanks Rick, hows things going at your shop? Any progress on your car?
     
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