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Dyno numbers

  • Thread starter Thread starter jason865
  • Start date Start date Jan 6, 2023
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jason865

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Jan 6, 2023
#1
  • Jan 6, 2023
  • #1
I'm adding over the winter gt40 heads upgraded springs and trickflow stage 1 camshaft. I already have professional products upper amd lower 70mm throttle body lightning maf Cai electric fans t5 373. Should I add 24
24lbs injectors? My car is already dyno tuned with a chip. Made 251hp 295 torq to the wheels. What do you think ill see after the heads and cam upgrade?
 

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Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
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Jan 6, 2023
#2
  • Jan 6, 2023
  • #2
270-280HP to the wheels tends to be typical of a lot of GT40 combos. If you search around, there are various threads of guys getting 300HP to the wheels on certain GT40 combos but most tend to be in the 275 rwHP range
 
Last edited: Jan 7, 2023
Reactions: Noobz347 and 1hot87gt

68keyblr

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#3
  • Jan 7, 2023
  • #3
I'd guess 280-300 if you get it retuned. I had a very similar combo in my '88 GT and it put down 300 to the wheels with 65mm explorer TB and GT-40 intake with ported lower. Also the heads had some port work done as well. I would add the 24# injectors, maybe even go 30 if you are going to continue to add power. I ran 30# injectors with my combo
 
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