ElkySS

iTrader: (6)

as the title says, can i safely run a 150 dry shot on an LT1 with the cam in my sig? if not can i if i upgrade the fuel system with a walbro 255 pump and 30# injectors and be safe?

LT1PwrdZ

iTrader: (1)

I had stock injectors, Just an inline boost pump from ZEX with a 125 shot. Never had problem. Now i have a wet kit, Same stock injectors with same boost pump. 150 shot and still right on the money every time

quickblade

I would say personally upgrade to the walbro and 30 injectors...
Better safe then sorry.. Plus you will be set up for any future additions..
Like a 175 shot.. LOL

LT1PwrdZ

iTrader: (1)

Safe is better than sorry, With a boost bump also a 200 shot i have used is fine

ElkySS

iTrader: (6)

wow ur using a 200 shot DRY? i already have the 30# for the cam but am thinking about upgrading to 36# after the nitrous. if its really this safe with what i plan on doing how high should i go with the 255 and 36#?

TheBiz

iTrader: (45)

I ran a 200 on a stock pump and stock injectors for 2 summers. Never had an issue.

LT1PwrdZ

iTrader: (1)

Its a wet shot now but yep. Zex has a inline boost pump and i have a aeromotive FPR. 200 and never a problem. Right plugs and right tune go a long way

Nick@HSW

iTrader: (4)

I think you're going to be fairly close to the systems capabilities. I would upgrade the pump w/ a hotwire harness and go with bigger injectors or convert it to a wet kit, either way will work. Just as was pointed out above...better safe than sorry. Thanks.

Nick

Ray@Nitrous Outlet

Yes it is suggested to replace the pump and injectors if you are going with a dry kit.....but the big issue is how are you handling the fuel enrichment?

I don't like using a huge increase in fuel pressure to force more fuel flow through the injector. 125 or so is about the limit most guys are doing with this style dry kit. I would convert to a wet kit for the LTx platform.

Nick@HSW

iTrader: (4)

I agree. If using the Interface to control your fueling, this is something you don't have to worry about.

Nick

ElkySS

iTrader: (6)

well obviously im going to get it tunned for nitrous, whatever the shot i go with. wer yall considering this when listing upgrades needed?

Ray@Nitrous Outlet

yes

ElkySS

iTrader: (6)

ok just makin sure

pyro719

iTrader: (5)

I was told I shouldnt go above 125 shot on my dry zex kit. But im gonna bring jets to the dyno and get my 150 rwhp shot out of my zex kit watch

LT1PwrdZ

iTrader: (1)

125 is tops on the zex dry kit, I had it i loved it. ZEX is the best is my opinion. I now have there EFI race kit and its amazing also.

Ray@Nitrous Outlet

No one said it couldn't be done....we said there wasn't a base jetting recommendation from ZEX and you were on your own to come up with the correct jetting.

I also said I don't like running a dry kit that relies on increasing fuel pressure for the fuel enrichment.