uhm nitrous goes hand in hand with high compression. hot rodders are running 16:1 CR with 150 + shot. nitrous gains increase exponentially with compression.doc VTEC said:It should be OK. I think that an NOS direct port kit jetted as low as possible is an 80hp shot min. It sounds like a strong combination, just don't go too crazy with direct port with that compression. USDM GSR has 10:1 CR, JDM is 10.4:1. A few cats here in Wichita used to run direct port on stock motors (mostly GS-R's) back when I started racing in the late 90's, my first ride in a nitrous car was in one of these cars. These guys used to run a 100 shot on stock motors and they lasted quite a while, altho they let go eventually.