5177 Dry Kit Help!
5177 Dry Kit Help! I am using the NOS 5177 Kit. I have everything installed as layout in the shows. The system has worked great for three years. Now when I test the system with the car running and the micro switch depressed and the NOS lines disconnected from the breather at idle it works perfect.
At the track with the bottle pressure at 900 PSI and everything turned on and making what I think is a NOS pass no increase in trap speed or decrease in ET.
Any help!
I have the FPSS installed as well.
Thanks
At the track with the bottle pressure at 900 PSI and everything turned on and making what I think is a NOS pass no increase in trap speed or decrease in ET.
Any help!
I have the FPSS installed as well.
Thanks
Launching!
Joined: May 2006
Posts: 217
Likes: 0
From: Huntington Beach CA
Originally Posted by toecutter_tx
adjust fpss
I would bypass the fpss switch to test it. Another possibility is you really do have low fuel pressure at WOT and it's doing its job. How old is the fuel pump? Plugged filter?
Trending Topics
Having mucho experiance with the 5177, I have some thoughts. Bypass FPSS and see if it sprays, I doubt this is the issue. Here's what happens on the 5177: The small noids are really under powered noids, once they get some time on them (years) they get even weaker. This will come to light when engine bay temps come up. What happens is the noids heat up, which in turn causes more resistance for noid to over come. They can't do this because of their weak build. Add to this a little higher bottle pressure, and they just won't work. Ask me how I know? Time for rebuilds, or upgrades.
Robert
Robert
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo Thank for all of the input.
Robert56,
The system works just fine in the driveway. However I have not tested the system at home with the bottle pressure at 900 psi. I will try that to see if it works at idle and at 3,000 RPM's disconnected from the air lid.
What is the purpose of using two noids with the 5177? Can I remove the two small noids and add one bigger noid?
Has anybody else done this?
One final question could my whole problem be due to colder weahter?
Thanks
Robert56,
The system works just fine in the driveway. However I have not tested the system at home with the bottle pressure at 900 psi. I will try that to see if it works at idle and at 3,000 RPM's disconnected from the air lid.
What is the purpose of using two noids with the 5177? Can I remove the two small noids and add one bigger noid?
Has anybody else done this?
One final question could my whole problem be due to colder weahter?
Thanks
Originally Posted by N2RACINGLS1's
What is the purpose of using two noids with the 5177? Can I remove the two small noids and add one bigger noid?
Thanks
Thanks
The redundant noids are for safety, if one sticks open the other will still close. Yes, you can change to one bigger stronger noid. Here is a schematic for running the 5177 in a dual stage config.
Robert
Robert
Well finally adjusted the FPSS after changing the noids out and the system still not working. Not sure why the FPSS got out of adjustment after so long of a period.
Recorded a run at the dragstrip yesterday and the car ran perfect on the NOS and the system work like it use to before having the problems. All readings were in check.
I adjusted the FPSS 1 turn counter clockwise and the dry system worked perfect once again.
Just thought I would post in case anyone else has this problem.
The funning thing about this whole thing is it would work in the driveway but not at the dragstrip.
Recorded a run at the dragstrip yesterday and the car ran perfect on the NOS and the system work like it use to before having the problems. All readings were in check.
I adjusted the FPSS 1 turn counter clockwise and the dry system worked perfect once again.
Just thought I would post in case anyone else has this problem.
The funning thing about this whole thing is it would work in the driveway but not at the dragstrip.
Originally Posted by koolrayz
I would bypass the fpss switch to test it. Another possibility is you really do have low fuel pressure at WOT and it's doing its job. How old is the fuel pump? Plugged filter?
i run my 5177 without the FPSS and the small noids burned up, so i changed them out for a single noid.
i have not had any problems on mine...
also i feel a bigger hit when the pressure it between 950-1000 but i dont go any higher than that
i have not had any problems on mine...
also i feel a bigger hit when the pressure it between 950-1000 but i dont go any higher than that