Nitrous Oxide Installation | Tuning | Products
Sponsored by:
Sponsored by:

Bad times on N2O HELP

Thread Tools
 
Search this Thread
 
Old 10-30-2005, 11:40 PM
  #1  
Staging Lane
Thread Starter
iTrader: (3)
 
BFate's Avatar
 
Join Date: Apr 2005
Location: Gretna, NE
Posts: 76
Likes: 0
Received 0 Likes on 0 Posts
Question Bad times on N2O HELP

OK I went to the track this weekend for the first time with the N2O. I ran consistant 13.2's at 103 on motor. Then I heated the bottle up to 1100 psi and went with a 100HP shot. 12.9 at 105. Everything seemed OK no surging popping etc. So when in doubt try a 150HP shot 12.7 at 108. These times are WEAK. And I got them more than once. Obviously I have a problem somewhere but everything seemed fine car ran good on and off the juice the power and top speed just were not there. I have a NX wet kit gen II (Heater, purge, RPM switch at 3200 and 5800, Fuel Pressure saftey switch, blow down tube, TR6's gapped at .40 and remote opener) My car is a 2000 Firehawk Auto with a Vig3200 and the basic bolt ons. I was running 1/2 tank of 93 octane with 5 gallons of 100 mixed in. Any suggestions?
Old 10-31-2005, 04:36 AM
  #2  
TECH Senior Member
 
PREDATOR-Z's Avatar
 
Join Date: Mar 2004
Location: BFE
Posts: 14,620
Likes: 0
Received 16 Likes on 16 Posts

Default

Fuel pressure/supply?
Old 10-31-2005, 05:11 AM
  #3  
Banned
iTrader: (32)
 
2001z's Avatar
 
Join Date: Mar 2005
Location: Fountain Inn, SC
Posts: 1,157
Likes: 0
Received 0 Likes on 0 Posts
Default

sounds to me your in need of a tune . I have my tr-6s gapped at 36.
Old 10-31-2005, 05:52 AM
  #4  
LS1TECH Sponsor
iTrader: (13)
 
DynotuneN2O's Avatar
 
Join Date: Jul 2004
Location: Massachusetts
Posts: 1,766
Likes: 0
Received 0 Likes on 0 Posts
Default

Check the screen on your nitrous solenoid. It may be partially clogged. Also, you might check your fuel solenoid. Either one clogged will produce only a little power.
Are you running an a/f gauge? That would have given you your answer......
Super rich=clogged nitrous noid, very lean = clogged fuel noid.
You can get one here>>>>> www.dynotunenitrous.com

Cheers
Dan
Old 10-31-2005, 08:24 AM
  #5  
TECH Junkie
iTrader: (23)
 
Turo's Avatar
 
Join Date: Aug 2003
Location: Tallahassee, FL
Posts: 3,467
Likes: 0
Received 0 Likes on 0 Posts

Default

I would close the gap on the plugs a bit, you could be blowing the spark out. Try something like 36 or 38.
Old 10-31-2005, 08:52 AM
  #6  
TECH Apprentice
 
Y2K2LS1's Avatar
 
Join Date: May 2002
Location: one step ahead of you
Posts: 338
Likes: 0
Received 0 Likes on 0 Posts

Default

It's most likely a clogged nitrous noid, or nitrous filter, or some other problem with the nitrous feed. In most cases you can get away with stock plugs on 100 or less, so TR-6's gapped at .040 shouldn't be a problem. If you had a problem on the fuel side, I would think you would have had some melted pistons. Plus I think you would have ran alot faster being on the lean side. I would look into both noids and check the filter to be safe.

Also, check how your nossle is pointed. Maybe it got turned a little bit in the bellows.

Good luck.
Old 10-31-2005, 08:56 AM
  #7  
FormerVendor
iTrader: (25)
 
Nitro Dave's Nitrous Outlet's Avatar
 
Join Date: Jun 2002
Location: Waco, TX
Posts: 12,284
Likes: 0
Received 4 Likes on 4 Posts

Default

can you give us the break down form your time slips. What were your 60 foot times and mile per hour? Were you spinning any? Do you know your aird fuel. Was your botttle getting low?
Dave
Old 10-31-2005, 09:43 AM
  #8  
Staging Lane
Thread Starter
iTrader: (3)
 
BFate's Avatar
 
Join Date: Apr 2005
Location: Gretna, NE
Posts: 76
Likes: 0
Received 0 Likes on 0 Posts
Default

OK, The bottle was full and I only made 4 nitrous passes. On the 100 shot I cut 1.85's 60, and 12.9 at 106. On the 150 I cut 1.79 and 12.7 at 108. It didn't seem to get loose at all I had ET Streets. I don't have an A/F guage. The kit is obviously doing something, it did take .5 off of my motor times, thinking more about this could the Fuel Pressure Safety Switch set a little too high cause a symptom like this? Maybe it's cutting the system of with the slightest drop in FP, but it doesn't seem to be surging.....

Last edited by BFate; 10-31-2005 at 10:25 AM.
Old 10-31-2005, 10:33 AM
  #9  
Closed ex-Sponsor Account
iTrader: (1)
 
NXRICKY's Avatar
 
Join Date: Jul 2004
Location: Wichita Falls, TX
Posts: 2,797
Likes: 0
Received 0 Likes on 0 Posts
Default

Check to make sure you have the WOT switch fully pressed, it might be one during the launch and turned off once going down the track.. Aslo what jetting Numbers are you using.
Ricky
Old 10-31-2005, 10:44 AM
  #10  
11 Second Club
iTrader: (2)
 
Ed Blown Vert's Avatar
 
Join Date: Nov 2001
Location: Sunny San Diego
Posts: 3,066
Likes: 0
Received 0 Likes on 0 Posts

Default

You don't know your AFR and you jumped up to a 150 shot? Get that thing on a dyno to check your AFR. And start with a smaller shot.

What jets are you running?
Old 10-31-2005, 10:51 AM
  #11  
Staging Lane
Thread Starter
iTrader: (3)
 
BFate's Avatar
 
Join Date: Apr 2005
Location: Gretna, NE
Posts: 76
Likes: 0
Received 0 Likes on 0 Posts
Default

OK I'll check my WOT switch but I did feel the system re-engage after my last shift at the end of the quarter mile. The jets for the 150 shot are 62 N2O and 33 Fuel. The 100 shot are 52 N2O and 28 Fuel. When I installed the kit I logged runs with HP Tuners and the A/F ratio at the time seemed good. I did not have the cable to log my runs at the track. You are right though I know I need to make a trip to the dyno. This was the last weekend for racing and I wanted to get some new times.

Last edited by BFate; 10-31-2005 at 12:12 PM.
Old 10-31-2005, 11:24 AM
  #12  
11 Second Club
iTrader: (2)
 
Ed Blown Vert's Avatar
 
Join Date: Nov 2001
Location: Sunny San Diego
Posts: 3,066
Likes: 0
Received 0 Likes on 0 Posts

Default

Well, bypass your FPSS and see if that is your problem. But don't shoot a 150 when your testing.




All times are GMT -5. The time now is 04:47 PM.