Technical > Spud Miller's Cave
Not seeing any gains !
masracingtd1167:
--- Quote from: dreracecar on October 29, 2019, 07:43:44 AM ---Such a low percentage is only going to give you stink and very little gain
--- End quote ---
Bruce The car did pick up the year before when we first tried the nitro at 13 percent but that was at the higher compression ! With the 13 percent it went from 4.60 eighth and high 7.20's at 181 to 4.51 eighth 7.11 at 186 ! Right now with the 25 percent it will still run 4.51 to the eighth but just seems to fall off after and only run at best 181 ! I have been wondering if my ignition might not be putting out enough ! would a 25 percent mix be harder to light ? My MSD 7AL3 box is getting old 12 years and if I have to buy a new box I think I might just go ahead and buy a Mag ! Plug wires are also 12 years old so I think it is time for some new ones I guess I got my money's worth out of them !Going to send my fuel system to Spud and have it flowed ! Any other ideas Guy's !
32bantam:
More timing with more Nitro ?
Paul New:
--- Quote from: 32bantam on October 29, 2019, 12:55:34 PM ---More timing with more Nitro ?
--- End quote ---
I know nothing but I think at 25% you treat it as an alky engine still.
THE FRENCHTOWN FLYER:
After reading the 51 part youtube documentary on The Surfers TF team of the 60's I remember that teams were having hi-rpm problems because of the mag kill switches they were using. They installed a knife switch on the primary side of the mag to cure the problem. This may-or-may-not be relevant with an MSD but I would look at it nonetheless.
masracingtd1167:
I did try more timing went from 34 to 36 and showed nothing yet the plugs look like it could use more !
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