Dry system questions - PLEASE HELP
Dry system questions - PLEASE HELP Ok guys, I have been reading post after post trying to decide to go wet or dry. I want to go dry because of the backfire issues that occur with the wet kits and the cleaner install. Here's my problem... I have ported stage 2 ls6 heads,226/226-585/585 cam with 112 lsa, ls6 intake,30# SVO injectors, racetronics fuel pump and harness and all the bolt ons... can I safely use a dry kit up to a 150 shot with my set-up or would I be better off going with a wet kit? PLEASE HELP, i'm going blind from reading about nitrous! 
I have been exchanging PM's with Matt of HSW on an injector upgrade for my car. One of the cars he has done recently he put in 37 # (these give you 43#@58 PSI) and it is spraying a dry 125 and a 100 wet. Shoot Matt @ HSW a PM.
I am going with either #37 or #42's (same price at HSW) right now I am leaning towards 37# Delphi injectors, there seems to be an even split when I ask SVO or Delphi from various sponsors and EFI Live users.
Beer
I am going with either #37 or #42's (same price at HSW) right now I am leaning towards 37# Delphi injectors, there seems to be an even split when I ask SVO or Delphi from various sponsors and EFI Live users.
Beer
I know you want answers now, as in today. But if you haven't done so yet, it would be a good idea to actually talk to somebody about your specific set-up and plans. Have in mind how much money you want to spend and why you want nitrous (street/strip etc). Think of every question you can and write them down, then give the sponsors a call. I must have talked to Dave at Nitrous Outlet at least 5-6 times before I settled on a plan. Also have spoken to the guys at NX Express and Dyno-tune (All contributed to my set-up). By no means am I limiting to these sponsors, these are just the ones I have personal experience with. You will get direct answers without getting frustrated waiting on someone to post, and getting many different opinions on a pretty broad subject. Don't rush it, and best of luck.
yes you have almost the same exact setup nasty hawk has he ran 150 dry with no problems then added a second stage wet he put down 505 with his dry shot at about 100 shot with a tr224 224 cam with 30# injectors and the racetronix fuel pump here is some pic/results http://www.harrisspeedworks.com/gall...s.php?album=32
i would browse through hsw's site they have high quality kits and are very helpful
i would browse through hsw's site they have high quality kits and are very helpful
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(projected hp x .5) / 6.4 = min inj to meet 80% duty cycle rule
Don't forget to check out the PRO Dry kit. Something that's more common now is the swelling plunger issue on the wet hits. We must keep on top of this. I think your fine on your fuel system and your hp level. Start at 100 and check for duty cycle, a/f and kr and you'll be fine. Smart choice going dry. Watch for a new dry kit from Nitrous Direct (Ultimate PRO Dry), it's in testing right now and is working flawlessly.
Robert
Don't forget to check out the PRO Dry kit. Something that's more common now is the swelling plunger issue on the wet hits. We must keep on top of this. I think your fine on your fuel system and your hp level. Start at 100 and check for duty cycle, a/f and kr and you'll be fine. Smart choice going dry. Watch for a new dry kit from Nitrous Direct (Ultimate PRO Dry), it's in testing right now and is working flawlessly.
Robert
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I think you will be pushing your 30#SVO injector to its limit with a 150 dry shot. You are looking at running somewhere around 550rwhp on a dry shot so a 42lb injector would cover that. That would cost you injectors + tunning and the kit.
If go with wet, your racetronix pump would have you covered and no need to swap injectors. All you would need to buy is the wet kit and put it on the dyno and check the A/F so you can sleep at night.
If you will run a window switch and set it at no less than 3000rpm should never have to worry about a backfire with a wet kit.
If go with wet, your racetronix pump would have you covered and no need to swap injectors. All you would need to buy is the wet kit and put it on the dyno and check the A/F so you can sleep at night.
If you will run a window switch and set it at no less than 3000rpm should never have to worry about a backfire with a wet kit.
Originally Posted by shaZZam
Robert, is that WHP or flywheel? Thanks.
Also, one thing to remember, the 80% duty cycle rule is for longevity. If you are going past 80% on a 1/4 run don't be to concerned as you really aren't putting much additional wear onto injectors. just stay away from going static as this can cause over heating issues and failure, but some still go past 100%.
550bhp x .5 = 275
275 / 6.4 = 42.96lb inj So, your fine as you allready have 42lb'ers (37svo's). Actually you can even go further in the future and still be fine.
Robert