C5 Forced Induction/Nitrous C5 Corvette Turbochargers, Superchargers, Centrifugal, Twin Screw & Roots Blowers, Twin Turbo Kits, Intercoolers, Wet & Dry Nitrous Injection, Meth
Sponsored by:
Sponsored by:

Detonation only when spraying

Thread Tools
 
Search this Thread
 
Old 07-19-2002, 12:50 AM
  #1  
NYtoCA
Burning Brakes
Thread Starter
 
NYtoCA's Avatar
 
Member Since: Mar 2002
Location: San Diego CA
Posts: 1,003
Likes: 0
Received 0 Likes on 0 Posts
Default Detonation only when spraying

A few months ago i was throwing a lean code and with that my car was detonating while at WOT. I used a Air/Fuel Calibrator and the code went away as well as the detonation or pinging sound. I just had NOS installed (NX wet 100 shot) and when i'm spraying it's pinging alot but ONLY when i'm spraying, not when it's floored on just the motor.

I have NGK TR55 Spark Plugs, wondering if that would cause the problem?

I will have install pics and more thoughts tomorrow when i have more time, i think most will be impressed by the stealth install under the hood........no, i didn't do the install:(

Thanks in advance,

Frank
Old 07-19-2002, 01:03 AM
  #2  
RatRacer
Safety Car
 
RatRacer's Avatar
 
Member Since: Aug 1999
Location: Texas
Posts: 4,862
Received 118 Likes on 73 Posts

Default Re: Detonation only when spraying (NYtoCA)

Do yourself a huge favor and don't hit the nitrous again until you can get your car on a dyno w/ a wideband O2 sensor. That's the best way to tune a nitrous car w/o blowing it up. If you hear pinging while on the juicie, you usually blow up shortly afterwards.

You also need to install TR6 sparkplugs and test the fuel pressure while driving the car under load.

Last but not least, CA 91 octane gas alone is probably not adequate for any nitrous use. At the very least I would add two gallons of Toluene to a tank of gas. That will fight off detonation. Unleaded race gas is better but you'll need 4-5 gallons of unleaded race gas to get enough octane.




[Modified by RatRacer, 11:09 PM 7/18/2002]
Old 07-19-2002, 01:44 AM
  #3  
MelloYellow
Le Mans Master
 
MelloYellow's Avatar
 
Member Since: Apr 2000
Posts: 7,248
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Detonation only when spraying (RatRacer)

Like Rat said, esp the TR6. Also, get a Fuel Pressure gauge installed.
ATAP your runs.
Old 10-15-2002, 02:39 AM
  #4  
Snowman
Le Mans Master
 
Snowman's Avatar
 
Member Since: Dec 1999
Location: Houston Texas
Posts: 8,627
Likes: 0
Received 1 Like on 1 Post
CI 1-2-3-4-5-6-7-8-9-10 Vet
St. Jude Donor '03-'04-'05-'06-'07-'08-'09

Default Re: Detonation only when spraying (RatRacer)

Yes to what Rat said, especially don't run it again without a knowledgeable tuner on a dyno with wideband O2's equipment. Would hate for you to have a custom hood and carry your motor home in a box. (Great looking ride by the way...I like the silver and black convert)

Snowman
Old 10-15-2002, 04:57 AM
  #5  
flynbludream
Drifting
 
flynbludream's Avatar
 
Member Since: Oct 2000
Location: Albuquerque NM
Posts: 1,957
Likes: 0
Received 1 Like on 1 Post

Default Re: Detonation only when spraying (NYtoCA)

:eek: PUT THE NITROUS DOWN AND STEP AWAY FROM THE NITROUS.

Nitrous and detonation =
Old 10-15-2002, 08:20 AM
  #6  
NYtoCA
Burning Brakes
Thread Starter
 
NYtoCA's Avatar
 
Member Since: Mar 2002
Location: San Diego CA
Posts: 1,003
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Detonation only when spraying (flynbludream)

I got H/C's package from MMS and he tuned the motor on/off NOS so now i get no detonation! Now i don't cringe when i spray :)
Old 10-15-2002, 01:14 PM
  #7  
Austrian Vette
Safety Car
Support Corvetteforum!
 
Austrian Vette's Avatar
 
Member Since: Feb 2000
Location: Austria
Posts: 3,683
Likes: 0
Received 0 Likes on 0 Posts

Default Re: Detonation only when spraying (NYtoCA)

I got H/C's package from MMS and he tuned the motor on/off NOS so now i get no detonation! Now i don't cringe when i spray :)

Right decision!!!!

Now have fun!!!!! :cheers:

Michael
Old 10-15-2002, 07:16 PM
  #8  
compuvette
Racer
 
compuvette's Avatar
 
Member Since: Dec 2001
Posts: 498
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Detonation only when spraying (NYtoCA)

Nice numbers too! How is that 224 cam treating you? Easy to drive?
Old 10-17-2002, 04:07 AM
  #9  
NYtoCA
Burning Brakes
Thread Starter
 
NYtoCA's Avatar
 
Member Since: Mar 2002
Location: San Diego CA
Posts: 1,003
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Detonation only when spraying (compuvette)

I love the 224 cam! If it was strickly my race car i would of went with the 229 but i still find excuses to drive it even though i have another car. Theres a slight lump and shake, it's perfect.

The H/C's along with my headers, x-pipe and stingers really make it sound pretty mean. :D

Get notified of new replies

To Detonation only when spraying




Quick Reply: Detonation only when spraying



All times are GMT -4. The time now is 09:36 PM.