ok i have nos kit 5177 and am planing to hit 100 shot dry
and i have darts 205 with 62cc and g5x3 cam with 610 lift and 232-242
and i have wallbro 255 pump but i had lean on the top of rpm on the dyno so am puting another inline pump for support and am upgrading my injectors to 30#
now i ve been told that cuz of the high comprisson that no matter wht i do i will probably will hurt the engine if i spary 100 dry ?? is that true?
cuz am planing to hit 550 to 600hp cuz am doin 420hp on the motor
i did fly cut my pistons and replace the rod bolts with arp
and had already one step colder spark plugs .
so is there is somthin else i should do to hit the nos safly without blowin the motor . HELP (of course tuning is important)
note: i blown my engine before with the same nos kit before with normal plugs and spark advance they said it happend due to fuel pressure faileur drop.but ithaught that kit should be safe for that???

 

I think you need to go bigger with the inj. maybe 42 or 46 lbs.

The 30's would be just enough for a good running H/C car. The dry shot will need more.

That and a good tune and you'll be fine.

 

Yeah...you should put the 42s in there and get the car retuned for them. Those along with your 255 lph walbro should be enough for 700 flywheel hp.

 

im with the other guys. more injector for sure.

 

 

yah but i ve been told that the 42s is too big for my setup if i want to keep at least 410hp without the spray so wht u say if i use 36# injector will be fine ???

 

They are not to big, have your tuner scale the injectors and they will be fine.

I run 60lbs. on my car with no problems.