damage without cdfp?

[CelestSpeed3]

I've been in this scene for a while and I've done real modifications to my cars full well knowing the risks. I'm not your average bolt-on-buck-a-roo.


If you need a walk-through of the AP send me a PM so we can meet up and I will show you. All of the info is in the AP help files, and instruction manual if you want to start reading.

[mspeed3]

I've been in this scene for a while and I've done real modifications to my cars full well knowing the risks. I'm not your average bolt-on-buck-a-roo.

If you need a walk-through of the AP send me a PM so we can meet up and I will show you. All of the info is in the AP help files, and instruction manual if you want to start reading.

Thanks dude... Ive read the manual.. however, I have no experience reviewing the logs.. and which map should I run that would best indicate whether Ive caused damage last summer.

Ill likely pm you once the insurance is back on.. and the snow is done

[SomeGuy]

Uhm...isn't the point of the new fueling logic on the 2nd gens to prevent the zoom-zoom boom? Ie when they drop fuel pressure rather than continuing to try and maintain pressure but not being able to and getting lean...they just dump fuel into the engine, go stupidly rich to prevent the motor from blowing up? Not to say it isn't bad, but it's less likely to blow up the motor due to the weak fuel system...although running stupid rich is bad for other reasons.

[Elusivellama]

Uhm...isn't the point of the new fueling logic on the 2nd gens to prevent the zoom-zoom boom? Ie when they drop fuel pressure rather than continuing to try and maintain pressure but not being able to and getting lean...they just dump fuel into the engine, go stupidly rich to prevent the motor from blowing up? Not to say it isn't bad, but it's less likely to blow up the motor due to the weak fuel system...although running stupid rich is bad for other reasons.

I believe it goes something like this:

1. fuel pressure drops below 1600
2. injector pulse width is widened (ie. the amount of time that the injector is delivering fuel)
3. stock cdfp tries to keep up but fails
4. fuel pressure drops even further
5. see step 2

Abilor likened it to an emergency medical tech finding you bleeding out on the sidewalk, so he cuts open your femoral artery to help you.

[CelestSpeed3]

That's right and because you are now flowing 2x the amount of air the you would have stock because you added an intake and DP, the motor leans out because the logic doesn't account for it. The motor then leans out, lean mixture creates elevated combustion temps (see how the EGT gauge could save your ass), the high temps lower the pre-ignition (detonation) threshold of the motor, the motor detonates like a firework, equally loud but with less colours and you are lft with the same sense of childish wonder. Wow, why does it do that.

[mspeed3]

So its a bang and that's its? Its likely frying gaskets on the way there. I should see burning oil.. smoke out the tail pipe etc. Am I right?

[CelestSpeed3]

Nope, you hear a bang. Then the car spills it guts, oil and connecting rods all over the road.

[Mr Wilson]

You can read about some of the blown situations here click

[fywdyl]

There are signs of it first... you will feel the car stutter when you do a WOT pull. I'm assuming you're on the stock tune and the boost levels should be below the threshold. If you are that concerned, just don't do WOT pulls until you get the FP.

Or load a safemode map if you get the AP before the FP.

[mspeed3]

There are signs of it first... you will feel the car stutter when you do a WOT pull. I'm assuming you're on the stock tune and the boost levels should be below the threshold. If you are that concerned, just don't do WOT pulls until you get the FP.

Or load a safemode map if you get the AP before the FP.

No stutter... thank god. Motor mount movement sometimes, but that's a different story.. (Still have to install inserts)

What happens exactly when she stutters? Would it throw a CEL?

[fywdyl]

No stutter... thank god. Motor mount movement sometimes, but that's a different story.. (Still have to install inserts)

What happens exactly when she stutters? Would it throw a CEL?

You'll know when it stutters. It happened to me before COBB came out w/ the safemode maps. I only had the CS SRI+TIP, but the Stg1 OTS tune was set at 17psi.

I was doing a 3rd gear pull and then at around 4500 rpm it felt like I took my foot off the pedal and then mashed it again, you will feel the car slow down quite a bit and then try to speed up, and then slow down, speed up, so on and so forth.

When I looked at the log, the fuel pressure dropped to like ~800 psi so I KNEW I needed a HPFP badly. If you haven't felt that yet then maybe it's not as bad as I've described it, but you may still be close to the threshold. You'll find out for sure once you get the AP.

Mind you, that only happened in the winter time, in the summer time it was fine.

[mspeed3]

You'll know when it stutters. It happened to me before COBB came out w/ the safemode maps. I only had the CS SRI+TIP, but the Stg1 OTS tune was set at 17psi.

I was doing a 3rd gear pull and then at around 4500 rpm it felt like I took my foot off the pedal and then mashed it again, you will feel the car slow down quite a bit and then try to speed up, and then slow down, speed up, so on and so forth.

When I looked at the log, the fuel pressure dropped to like ~800 psi so I KNEW I needed a HPFP badly. If you haven't felt that yet then maybe it's not as bad as I've described it, but you may still be close to the threshold. You'll find out for sure once you get the AP.

Mind you, that only happened in the winter time, in the summer time it was fine.

Dude, thank you.. so far the most useful response.. I dont remember this happening last summer.. so I think I should be okay. Did you cause any damage when this happened? Or is it more of a warning of a potential failure?

I got AP last night.. havents installed yet..

[fywdyl]

Dude, thank you.. so far the most useful response.. I dont remember this happening last summer.. so I think I should be okay. Did you cause any damage when this happened? Or is it more of a warning of a potential failure?

I got AP last night.. havents installed yet..

I have no idea if it caused damage or anything. I'd have to take apart the motor to find out, but since then the car is running fine. The speed's motor is pretty tough, as long as it's well maintained and the right precautions are taken, I'm sure you'll have a healthy 250whp+ for a long time.

[horto]

You'll know when it stutters. It happened to me before COBB came out w/ the safemode maps. I only had the CS SRI+TIP, but the Stg1 OTS tune was set at 17psi.

I was doing a 3rd gear pull and then at around 4500 rpm it felt like I took my foot off the pedal and then mashed it again, you will feel the car slow down quite a bit and then try to speed up, and then slow down, speed up, so on and so forth.

When I looked at the log, the fuel pressure dropped to like ~800 psi so I KNEW I needed a HPFP badly. If you haven't felt that yet then maybe it's not as bad as I've described it, but you may still be close to the threshold. You'll find out for sure once you get the AP.

Mind you, that only happened in the winter time, in the summer time it was fine.

[fywdyl]

^+1

Exactly, that's the only way to find out if your motor is gonna blow.
Prosport should make a "Danger to Manifold" gauge.

[mspeed3]

Ill take two.. just in case!

[MPS]

ur a dick and u know it

I don't mean to come off as a dick, but people seem to have forgotten the phrase buyer beware.

For your own safety and the longevity of your vehicle think twice before buying anything. I will be more than happy to help you install anything you want to your car. But I will not be happy if I hear you are stuck on the 401 and needing a tow.

[CelestSpeed3]

I've bent over backwards for people in the past trying to help them and they still don't learn.

But you tell someone off and they pay attention. Human nature I guess.

[joedemarco]

I've bent over backwards for people in the past trying to help them and they still don't learn.

But you tell someone off and they pay attention. Human nature I guess.

responses should start with "**** YOU! ...get FP replaced." This was you can tell them off and help them in the same post!!! LOL


OP: hope things are going well with the AP so far, enjoy!!

[joedemarco]

Is this what happens when you dont upgrade the fuel pump? (except to the fuel pump, not the block...or both?)


http://www.youtube.com/watch?v=aDwpuWcXzTw

[Mr Wilson]

Look Here

Your motor goes boom.

[loki]

*facepalm*

[loki]

Is this what happens when you dont upgrade the fuel pump? (except to the fuel pump, not the block...or both?)


http://www.youtube.com/watch?v=aDwpuWcXzTw

That's a hyundai

[joedemarco]

That's a hyundai

I know thats a hyundai lol, im saying if you try to run upgrades without upgrading the FP...its this ultimately what is going to happen??? the car will spew its guts all over the road...

[loki]

I know thats a hyundai lol, im saying if you try to run upgrades without upgrading the FP...its this ultimately what is going to happen??? the car will spew its guts all over the road...

First of all, that was a video of a hyundai doing donuts, then a ton of camera shaking, then oil and parts everywhere.

I watched it with the sound off...

Who knows why that hyundai blew up. This topic has been discussed in one of the other threads that currently active and to quote Aitch

What he's saying is that with a downpipe and without a HPFP, you'll be able to examine the internals of your engine after they are vomited out onto the pavement.

stop asking the same question over and over.....