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  1. 93gtmustang

    Where to Buy a Motor Similar to the GT-40 Crate

    Thanks for the reply! Are you talking NHRA stock class? I am just running ET bracket Pro class foot brake. So I think you are saying that the Blueprint and ATK are not a drop in engine like the Ford racing one I had right? thanks!
  2. 93gtmustang

    Where to Buy a Motor Similar to the GT-40 Crate

    I found these guys and they are pretty close by. https://crebengines.com/
  3. 93gtmustang

    Where to Buy a Motor Similar to the GT-40 Crate

    Thanks for the replys! I don't have the experience or tools for a rebuild. I don't think it's worth it. So I would be looking for a Long Block similiar to mine, EFI compatible, same horse power so I could have it just dropped in with out changing injectors, MAF sensor etc.. I have SFI Ford...
  4. 93gtmustang

    Where to Buy a Motor Similar to the GT-40 Crate

    Well my mechanic did a compression test on my old Ford Racing Crate Motor and it wasn't good. It served me well 15 years drag racing. Here's the link from the one I have. Ford Performance Parts M-6007-XB3M (summitracing.com) Does anyone know of any companies that make something very similar that...
  5. 93gtmustang

    Horse Power Gains?

    I thought I would share some of this information in reference to fuel injectors. Sorry some of the pages are upside down, so just rotate them.
  6. 93gtmustang

    Horse Power Gains?

    I'm not loolking to go faster with 30 lbs. I just found that the 24 's weren't within the reccomended 85% duty cycle at my horsepower. That's why I'm here asking the experts here! I've raced the car for years like this with absolutely no problems. 5.0 stock bottom end, heads , cam and intake...
  7. 93gtmustang

    Horse Power Gains?

    Ok thanks. So am I ok sticking with what I have now?
  8. 93gtmustang

    Horse Power Gains?

    Shift at 5800 rpms. Trap rpm is 6200. Close to the fuel shut off. My tach stores the highest rpm. I just used the Ford Racing calculator to get a rough idea. https://performanceparts.ford.com/download/pdfs/ProperlySelectingEFIComp.pdf AFR's? Air fuel ratio right? Im running the stock computer...
  9. 93gtmustang

    Horse Power Gains?

    Makes sense. I don't plan on modding this engine though. It's simple and works great for bracket racing. Thanks!
  10. 93gtmustang

    Horse Power Gains?

    My fuel pressure is at 42-43 psi with vac hose off. That's what I had found works best with the set up. I just don't want to spend money if I don't have too. I've been running the 24's for quite a long time and no problems. I was just messing around with the calculations and found I was a little...
  11. 93gtmustang

    Horse Power Gains?

    So at 345 flywheel horsepower the 24 lb. injectors are performing at 90% duty cycle. Should I go up to 30 lb. to meet the 85% duty cycle? Technically I would need a 25.37 lb injectors to meet the 85% duty cycle, so the next size up is 30lb.
  12. 93gtmustang

    Horse Power Gains?

    Weight reduction. 13.1-13.3 was full weight car when I owned it. When I bought back my car the previous owner he put a fiberglass hood and skinny front tires on. I ran 12.953 with it this July like that. Then I took the rear and passenger seats out. Now its 12.6's.
  13. 93gtmustang

    Horse Power Gains?

    I had 3:73 with the original T-5 with 3:35 1st gear and it was a perfect combo. Then I bought a Tremec T-5z which has a 2:95 1st gear and it bogged badly. I have 4:30's now and it launches great. Wish I had gone with 4:10's due to the high rpms I have going through the traps. Close to fuel shut off.
  14. 93gtmustang

    Horse Power Gains?

    26x9 Hoosier Slicks
  15. 93gtmustang

    Horse Power Gains?

    Whoops! Typo. 4000 RPMS lol
  16. 93gtmustang

    Horse Power Gains?

    4000 rpm launch. 5800 shift. Trap rpm 6200-6250
  17. 93gtmustang

    Horse Power Gains?

    Did 2 runs last weekend trying to be consistent, not for fastest run, for up coming bracket racing events. My tach will give me peak rpm. It was 6200 and 6250 rpm. Close to the fuel shut off.
  18. 93gtmustang

    Drivetrain C-4 Starter

    Great. Thanks for the help!
  19. 93gtmustang

    Drivetrain C-4 Starter

    They are supplying me with a C-4 SFI Flexplate 157 tooth Will the starter work with that?