Right, i have an NRG power dd lc50... i have changed the veriator to a polini 6roller... its all fitted correctly.. changed the standered airfilter to a stage6 one... and changed my old exhaust for a new Stage6 Pro Reblica exhaust... its been direstricted...but when i set off it shoots up to 45... then just dies back down to 25? can someone help me? people have said its the jetts... then the rollers... getting confused can someone with alot more knowledge let me know cheers!
Yea the main jet, just work your way upwards until you find the one that runs fine go out go a drive on each one you try
NO! You fit the biggest one you have and work downwards until you find a jet that work's, you don't want to seize it up running a small jet.
Right, so how do I know what size my jet is? Will it say on the jjet? And if I upjet it will it do any damage to the engine?! Ahaha...
When you take your one out it will say on the jet, if its original I believe it's 56 or 57 in fact it could even be a 53 not sure of the top of my head, I'd say cause all the stuff you have put on it you'd want to go quite large around the 90 mark but I'm not 100% sure just try a few around that and see what it's like
Depends on if its an open air filter or just an insert, he might have to go over a 100 jet if its an open type air filter. My NRG had a 109 jet with a open filter and a pm 360 exhaust when i bought it but it was still running lean, since then ive changed to the standard airbox with the snorkel removed and a malossi insert, and changed to a S6 pro rep pipe too, im currently jetted at 80 atm. Also need to take into account where abouts in the world you are when jetting