ok so im just getting started building a motor and im goign to go lsvtec and im tihnking about nitrous. Im going to have forged rods pistons and i would like to have a port and polish head with cams intake and tb. my questions is what cr should i be looking at to go with nitrous. im going to be looking at a minimum 100 shot probably more like 150-175 thanks jamescb77

 

any comp really as long as the octane and the tune is right. nitrous loves high compression motors. but if your running pump stay around the 10.5-11.0 if your going to use racing gas just go for atleast 12:1


Modified by bigbadboy at 10:42 PM 3/14/2007

 

I would shoot for 10:1. Nitrous is like any other forced induction.. too high of a CR and you're asking for trouble.

 

ok i was going to get 11:1 as i have always heard that nitrous likes compression and i also want this to run really strong all motor what do you guys think about even going 12:1

 

octane and tune

 

i had an 11.7:1 b16 on a 125 shot. Like stated before, its all in the fuel and tuning

 

i had 11.5-12.1 comp. for a long time running 80 shot. but then i wanted more and went with 185 shot direct port, this worked great at the track in a hot day. i ran an 11.8 and i missed 4th. one day on a cold night i wanted to see what it made on the bottle, will, it melted the pistons 1 and 4. so, if your going to run nos just check your tune in every event or dyno. start rich and work leaner. i'm running 9.0 comp. now and i ran a 11.9 at palmdale this weekend. on the bottle you don't need the comp. but, i feel you on the allmotor part.(everyday driving is a must.) good luck