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Discussion Starter · #1 ·
dynoed my f8 with slp twins. it had 43 lbs of fuel pressure.we set the at .68bsfc this is the settings on my box

3000rpm
1.1.15

5000rpm
2.0.10

6700rpm
14.8.2

7800rpm
27.18.-6

does that seam right?had to take alot of fuel away at 7800 wot.
 

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seems right. only 43lbs of fuel. why not the stock 45-46? oops missed that you had twins. so i wouldn't know
 

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you made 169 hp ? am i right ? what was the air temp the day you dynoed ? -6 at 7800 on the high will be way too lean in the snow . more like + 12 . hope this helps . everything else looks pretty good . i have run in the - in the summer with a f8 but it was 90 degrees out .
 

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Discussion Starter · #4 ·
thats just what it had.and that last no. is negative 6.i was told to run positive 20.but it would not run.
 

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Discussion Starter · #5 ·
Originally posted by dead1dave@Oct 12 2005, 07:17 PM
you made 169 hp ? am i right ? what was the air temp the day you dynoed ? -6 at 7800 on the high will be way too lean in the snow . more like + 12 .  hope this helps . everything else looks pretty good . i have run in the - in the summer with a f8 but it was 90 degrees out .
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it was 65degees.but i do run a stock keyway.
 

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Originally posted by jpc@Oct 12 2005, 07:18 PM
thats just what it had.and that last no. is negative 6.i was told to run positive 20.but it would not run.
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it will seem fat over 40 degrees but i still think 12 will be close going by the hp you have . the efi adjusts but not as much as you think . i bet - 6 is good for a short run at 65+ degrees temp.
 

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Dave,should we give him my Snow Bash numbers :Wow1: ??I would love to see the responses on here for those.Sure did fly though. :beerchug:
 

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Originally posted by jpc@Oct 12 2005, 08:15 PM
is -6 to lean for 660 ft on the ice?
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yeah i think so ...even if you had race gas in it and it didn't lock up it would probably go slow . i took my snow #'s to the asphalt and my sled wouldn't even run in 50 deg. temps .think as if it were a carb sled .....you would do the same to stay at optimum performance .
 

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Discussion Starter · #12 ·
Originally posted by dead1dave@Oct 12 2005, 07:38 PM
it will seem fat over 40 degrees but i still think 12 will be close going by the hp you have . the efi adjusts but not as much as you think . i bet - 6 is good for a short run at 65+ degrees temp.
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so what your saying is i spent money to dyno for nothing.i should have waited until it was 10 dagree out side becouse the settings i have are only good for a 65 dagrees day.
 

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Originally posted by jpc@Oct 12 2005, 08:26 PM
so what your saying is i spent money to dyno for nothing.i should have waited until it was 10 dagree out side becouse the settings i have are only good for a 65 dagrees day.
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i'm not saying that ..........just that -6 is too lean .........when the snow hits the ground try +10 or 12 . if you can run at - 6 in snow then your not making any power because 0 is stock fuel . and stockers don't make the hp your motor does .
 
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