makes me worry about mine doin that 
N2O baackfire = exploding hood.
Waterbug,
I noticed the puff of smoke that came out of the tail pipe in the vid. I see it in the pictures you just posted as well. Have you checked your plugs? Normally when that happens its when you zap a plug or something lets loose. Have you checked the plugs and done a compression test?
If all is good. It may just have been the computer dumping fuel.
Dave
I noticed the puff of smoke that came out of the tail pipe in the vid. I see it in the pictures you just posted as well. Have you checked your plugs? Normally when that happens its when you zap a plug or something lets loose. Have you checked the plugs and done a compression test?
If all is good. It may just have been the computer dumping fuel.
Dave
Waterbug,
I noticed the puff of smoke that came out of the tail pipe in the vid. I see it in the pictures you just posted as well. Have you checked your plugs? Normally when that happens its when you zap a plug or something lets loose. Have you checked the plugs and done a compression test?
If all is good. It may just have been the computer dumping fuel.
Dave
I noticed the puff of smoke that came out of the tail pipe in the vid. I see it in the pictures you just posted as well. Have you checked your plugs? Normally when that happens its when you zap a plug or something lets loose. Have you checked the plugs and done a compression test?
If all is good. It may just have been the computer dumping fuel.
Dave
I figured I would install the new plugs when I do the compression test. Im going to buy the tool over the weekend and see how it goes.
I need to read up on it to see how to do it though.. I have never done it.
Cool. See if you had a lean issue in one cylinder it would zap the plug and the the raw fuel would push out the tail pipe. Usually this is black smoke. I cant remember what color yours was. If it was white smoke that is oil...
Doing a compression test is really simple. Screw the tool into the spark plug hole and turn the car over. Make sure the coil packs are unpluged.
Dave
Doing a compression test is really simple. Screw the tool into the spark plug hole and turn the car over. Make sure the coil packs are unpluged.
Dave
Cool. See if you had a lean issue in one cylinder it would zap the plug and the the raw fuel would push out the tail pipe. Usually this is black smoke. I cant remember what color yours was. If it was white smoke that is oil...
Doing a compression test is really simple. Screw the tool into the spark plug hole and turn the car over. Make sure the coil packs are unpluged.
Dave
Doing a compression test is really simple. Screw the tool into the spark plug hole and turn the car over. Make sure the coil packs are unpluged.
Dave
Oh, and thanks for helping me do it.
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From: cleveland/dayton/cincinnati, ohio
Ok I will preface my comments by saying that I do not have a N2O system and have very limited experience with. That being said, has anyone though that maybe the hood just broke? From what i see from the hood pics the foam that connects the upper layer of hood to the lower layer of hood is all pushed out of place. Maybe over time the foam glue failed (due to heat, moisture, etc) and the displaced foam allowed the hood to become a giant chaimber. When he was going down the track the hood filled with pressurized air and the seam failed causing the hood to separate. This instantly changed the manifold pressure from "ram air" to air being pulled out of the engine. The reason I say that is because the filter opening is sitting below the air stream and I think that the air passing over the now separated hood would cause a vaccum and lean out the engine. All the engine backfires that i have seen have decimated the top side of engine. In his pictures the filter is still in place. So my vote is hood failure.
Ok I will preface my comments by saying that I do not have a N2O system and have very limited experience with. That being said, has anyone though that maybe the hood just broke? From what i see from the hood pics the foam that connects the upper layer of hood to the lower layer of hood is all pushed out of place. Maybe over time the foam glue failed (due to heat, moisture, etc) and the displaced foam allowed the hood to become a giant chaimber. When he was going down the track the hood filled with pressurized air and the seam failed causing the hood to separate. This instantly changed the manifold pressure from "ram air" to air being pulled out of the engine. The reason I say that is because the filter opening is sitting below the air stream and I think that the air passing over the now separated hood would cause a vaccum and lean out the engine. All the engine backfires that i have seen have decimated the top side of engine. In his pictures the filter is still in place. So my vote is hood failure.
Im pretty sure he probley also heard the back fire and the car probley ran funny for a minute why the computer struggles to compensate.
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Verdad Gallardo Here is a good question that would make a difference.. Did the back fire happen before or after the hood lifted. Since the filter is made into the hood I am sure the sudden rush of extra air would have caused a lean condition.
Dave
Dave
Ok I will preface my comments by saying that I do not have a N2O system and have very limited experience with. That being said, has anyone though that maybe the hood just broke? From what i see from the hood pics the foam that connects the upper layer of hood to the lower layer of hood is all pushed out of place. Maybe over time the foam glue failed (due to heat, moisture, etc) and the displaced foam allowed the hood to become a giant chaimber. When he was going down the track the hood filled with pressurized air and the seam failed causing the hood to separate. This instantly changed the manifold pressure from "ram air" to air being pulled out of the engine. The reason I say that is because the filter opening is sitting below the air stream and I think that the air passing over the now separated hood would cause a vaccum and lean out the engine. All the engine backfires that i have seen have decimated the top side of engine. In his pictures the filter is still in place. So my vote is hood failure.
What you see is just some foam between the 2 pieces to help channel the air. In no way is it air tight and doesn't allow any air to go to other parts of the hood.
Only reason there was no fire is because I had no air filter in.
Last edited by waterbug1999; Jul 3, 2008 at 02:34 PM.
Hey Dave..
Here are my plugs.. These are from ......#3, 5, and 6.
It went lean do the the NANO bottle not regulating in my book... Like I said before, it was ~950 psi when I took off and when I got back to the pits it was~1300psi. I would imagine that that much of a pressure increase would cause a lean condition. Maybe the lean condition took out the plugs, then the extra fuel wasnt able to burn?? Anyhow, I talked with Brent (or Brett) over there and I sent him my bottle.
Im doing a compression test as well just to see how each cylinder is.
Let us know what the test came back with..Hopefully the diodes <-- Forget what there called right now..lol passed right through.. Just did the compression test..
#1 = 210 #2 = 215
#3 = 205 #4 = 210
#5 = 205 #6 = 190
#7 = 210 #8 = 215
All pretty damn close but the piston #6, witch was one of the cylinders that had a fried plug.
#1 = 210 #2 = 215
#3 = 205 #4 = 210
#5 = 205 #6 = 190
#7 = 210 #8 = 215
All pretty damn close but the piston #6, witch was one of the cylinders that had a fried plug.
Last edited by waterbug1999; Jul 3, 2008 at 04:53 PM.
I know we (Nitro Daves & full Throttle) had to get together to make the nitro dave WS and full throttles timing tuner work together. The schematic that was originally drawn up did not work. So, as far as I know, the new shcematic should have worked. Its programed to pull 4* for the 150 shot witch should have been enough. But, with the NANO acting up, whos to know if it just ran lean and melted the plugs or detonation from the timing tuner not doing what its suppose to.
Wow, there again I have a timing tuner and I know that there is no way to see the timing being pulled when tuning. That also scares the **** out of me because I will be using that with the Nano. Keep the information coming because I will definitely want and need it.
Wow, there again I have a timing tuner and I know that there is no way to see the timing being pulled when tuning. That also scares the **** out of me because I will be using that with the Nano. Keep the information coming because I will definitely want and need it.
Well, I think the only for sure way to see if timing is being pulled is to get it on the dyno and trick out the noids.. Just turn it up to 9* retard as that should be some noticeable HP loss.
Yeah I guess I will have to try that. I'm looking for a tuner now so I will definitely let them know what it is that has happen. Glad that your motor is still good to go as of now. Thanks for all the info and if you get more please share.
Ill prolly see if the timing being pulled shows up on EFIlive... I have that and would have liked to have logged the run. But, the track guys get pissed if they see a laptop on the seat.
Robert