09-03-2002, 12:22:00 AM
I WAS WONDERING WHERE ABOUT I SHOULD SET MY TIMING UP. THE MOTOR ITSELF LIKES 36. BUT N20 STATES TO DROP 4. 32 WOULD BE WAY LOW FOR EVERY DAY DRIVING .THE N20 IS ONLY FOR A RACE HERE AND THERE. I DONT WANT TO HAVE TO KEEP RESETTING THE DIST . THE N2O IS GOING TO BE A 125 SHOT.ANYONE RUNNIG A SET UP LIKE ME WITH N20. ANY HELP WOULD BE GREAT THANKS
THE ENGINE IS SET UP WITH 435HP AND 485LBS TORQUE. ITS A 355, PERFORMER RPM MANIFOLD PORTMATCHED. DART EAGLES 200CC WITH 202/160 VALVES MAJOR PORT AND POLISH JOB.750HOLLEY
COMPS 274 HYD CAM.,ROLLER ROCKERS 1.5, FLAT TOP TRW FORGED PISTONS TOTAL COMPESS. 10.4 ,EAGLE STEEL CRANK AND EAGLE SIR RODS5.7
373 REAR END AND A COHEN STALL,400trans.and this all sits in a 79z28 MOTOR WAS FULLY DYNO FOR THE NUMBERS ALSO sfi balancer and flexplate ..
09-03-2002, 12:53:00 AM
Msd makes an adjustable timing control kit that allows you to adjust timing up to 15 degrees from inside the car. Its a little expensive around 100 bucks and needs to be run with an MSD ignition box. A friend of mine is currently using this set up on his car with nitrous and it makes it real easy to tune the car with or without the juice.
09-03-2002, 10:12:00 AM
I use the Mallory box which has it built in and as long as the bottle is on I can hit it anytime without worrying about the timing.
09-03-2002, 01:27:00 PM
I used to run a 150 shot of the happy gas and never would retard the timing. Didn't seem to hurt it. Until recently, I wanted to be more safe, so I bought a MSD Digital 6 box. It has a retard control built in. You can set it to retard your timing up to 9.9 degrees when you hit the button. I also had a MSD retard box (manual) and it also worked. Its not a bad thing that it needs to be run with a MSD box, cause if your running juice, you need a GOOD ignition system anyways. Good luck.
My 75 Camaro (http://www.geocities.com/oldschoolchevy1975/oldschool.html)
383 with AFR heads.
Old School for life!!!
09-04-2002, 12:14:00 AM
Depending on your system and its setup along with the octane of gas you use, you can have from zero to 6 degrees of timing needed. With a good heart shaped combustion chamber and a good atomization of n20 and fuel you can run little to no retard. I personally run a couple different NX setups with no retard at 150hp setting. I do run cold plugs and good gas. the safest way is to dyno tune your nitrous system retarded and slowly putting the timing back in to see how it affects it. Then you will know how your motor likes it.
09-04-2002, 06:23:00 PM
I ran 150 NX shot in my 98 Z28 where you cant adjust the timing. You do need to look into running colder plugs and STAY AWAY FROM PLATINUM PLUGS!! They meltdown qwickly!!
If your going to run nitrous make sure you run good fuel! I would suggest 100 at minimum. I ran 110 in my 98. It smells hella good http://www.nastyz28.com/ubb/smile.gif
Now my 70 I have to run 118 all the time and need to drop 9-12 degrees of timing when I hit the button. The MSD 7AL3 box is perfect for this.
1970 Pro Street Camaro
540 BBC 1400hp W/Nitrous
09-04-2002, 07:51:00 PM
<font face="Arial,Verdana" size="2">Originally posted by MechanicMike:
Msd makes an adjustable timing control kit that allows you to adjust timing up to 15 degrees from inside the car. Its a little expensive around 100 bucks and needs to be run with an MSD ignition box. A friend of mine is currently using this set up on his car with nitrous and it makes it real easy to tune the car with or without the juice.</font>
im running a msd6al with a supercoil and hei.
i also run about 5 gallons of 100 mixed in with 10 gallos of 93 octane