LAST TIME I TIMED MY CAR I SET IT AT 36(LOCKED DIS) AND WHEN ON DYNO I SET RETARD TO 9 DEGREES...REMEMBER 10:1 MOTOR COMPRESSION...SO I FIGURED THE STRAP SHOULD NOT OF HAD SUCH A HEAT MARK ON STRAP(NEAR WELD).... SO NOW IM CURIOUS BECAUSE NOS TELLS PEOPLE TO RETARD 2 DEGREES FOR EVERY 50 SHOT SO WIT...

dart told me to use 5671-7 on motor 8 up to about 225 shot and 9 for 250 and higher....im running 355cnc darts

go to youtube and search "simonscpr" .....this guy has one hellova knowledge and testing facility for all you snowmobile fanatics...he is a friend has world record of 163 mph in 1000 with stock chassis sled :shock: he is a turbo guy and knows his stuff thru years of test and tune...check h...

is there truth to only being able to get one reading off of a spark plugs when new to get accurate reading (mainly strap for timing im referencing)then need another new set? actually when i had car at dyno session,with a 260 shot the strap turned color after the curve but before the weld.too much ti...

i switched to 5 then found out the hard way 4 is better.i have 4 disc wilwood set up

stick with 4

my trans builder told me to put castrol type f in my th-400...i questioned him he said their is two properties oils offer,i cant remember them,but for my application he said its got better "stuff" in one of the two catagories in it over dextron.im in a smaller community surounded by the la...

thanks again! so best to get motor tuned up first so it mphs the best then go to nitrous,this i understand,but would i tune up the n/a with the racing gas and colder plugs?ive got 110 octane in er right now and motor is only figured out at 10.2:1 compression with 286/296@.050 on a 112 lobe sep(motor...

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i just found these jets,ive never seen these before,are they for nitrous plate use?if so what is diffrence and which is best?

When stepping up from a good known tune up you want to use the same n/f ratios as a starting point, not the same jet sizes. For example, say you were at 60n/55f at 5 psi, that would be a 6.36 N/F Ratio (950 psi bottle). If you added 8 jet sizes on both and kept the same pressures, it would go to 6.2...

my questions are: 1-lean is mean.if u run best mph with car it might be too lean then? can be a scary thought on a spray pass 2-my air fuel readings when on chassis dyno showed with carb set to run 12.7 thru whole operating rpms(motor only) when i let off the thing runs real lean(on gage shows like ...

the kit came with91 then next size smaller is 82.im gonna pick up a few inbetween.maybe then ill go like 85 gas and try.(?) its the standard big shot kit when i first started playing with setting the gas pressure i noticed a pulsation when it was flowing under 6 lbs so thats why i set at 6.5 lbs i h...

so much depends on is car built for na or was it set up for spray?my combo is doing quarter in 9.7 motor only @145 mph.converter is tight!3500 on brake.i might loosen converter a bit only if tires can hook,need to test more.but nitrous cars have been running tighter converters to get the torque to m...

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its the only ac and/or dc bottle heater i found

i have bleeder line on.set at 6.5 lbs flowing thru plate.when celinoid is closed its at 7 lbs pressure.i opened celenoid for 10 seconds(more than needed) and fuel pressure didnt move.(motor was not running)so for now i hope with wide open throttle going down track it reads same! on big shot plate im...

THANKS SO FAR JOHN. I ORDERED 3AN LINE AND FITTINGS,TO BE PLACED RIGHT BEFORE MY GAS SELENOID,NEXT QUESTION IS SHOULD I GO REGULATOR TO BLEEDER FITTING TO FUEL PRESSURE GAGE TO SELENOID OR GO REGULATOR TO BLEEDER TO SELENOID THEN FUEL PRESSURE GAGE??? BASICALLY GAGE BEFORE OR AFTER SELENOID OR SHOUL...