Blew engine at track

3V2000GT · 04-23-2006, 01:07 PM

Well went to the track today. Cars running pretty good, so i come up for my first run, I run a 14.7 @91.9 miles per hour. So i come to the end of the track come to a stop and I hear this really bad knocking sound coming from under the hood. And Im like WTF. So i roll up back in line and pop the hood and look and hear a very very lound knocking sound coming from the engine and reved it a bit and it got even louder. So im like F this im going home, So i get home (barely) and see if i can figure out what the problem is so i did a compression test and figure out that I have 3 cylinderrs that are bad, the compression was about half as the others in these cylinders.

Long story short i ran a 14.7 on 5 good cylinders ha ha, But I blew my engine!!!!
I dont know what i want to do, get it fixed to normal, get a new engine or rebuild with performance parts???? Oh yeah and i have no money, probably will have to put on credit card or get a loan!
Help me decide!

BTW The run was WITHOUT Nitrous!!!

r3dn3ck · 04-23-2006, 01:30 PM

find a used bottom end and slap it on, that'll get you running cheap on part costs. If you go 96-98GT for the bottom end you'll see a compression bump and a little more power.

You probably beat the ring lands out of the 3 dead slugs so a full rebuild is kinda it if you stay in your existing block. Check craigslist.org and see if someone has a 4.6 for cheap. You can just do the bottom end or go whole hog and repalce the whole engine. Then you'll have your block left to do a build-up on for the next time.

You can use 4.6 bottom ends from just about any 4.6 car or truck. Just make sure to use your oil pan and pickup and your front cover and heads/intake/headers.

3V2000GT · 04-23-2006, 01:35 PM

So i need a new bottom end??? So if want to rebuild my engine what do i need to replace??

matrixpuba · 04-23-2006, 01:44 PM

if you did not mess up the walls and their is enough material to go .030 over you could do that and add new rods and pistons and crank. or you could just get a new short block.

3V2000GT · 04-23-2006, 01:50 PM

Quote:

Originally Posted by matrixpuba

if you did not mess up the walls and their is enough material to go .030 over you could do that and add new rods and pistons and crank. or you could just get a new short block.

Yeah that sounds like a good idea, I just want it to be better and stronger than it was before, I dont want this to happen again

I found a new short block here http://karkraft.com/short_blocks.htm
you think thats a good price???

dfroster · 04-23-2006, 02:41 PM

First off, sorry to hear about your bad luck

Second, if you have to take out a loan you'll have to pay back, make it worth it. I'd use a DSS long block, you can go back with 281cid or even a stroker up to 306cid. There are other companies that offer crate motors as well. I'm thinking of a 306 longblock for my 1999(wife's car) it has 65000 miles on it and she wants more power, so it's upgrade to a new 06 GT or put about 4500 into a new motor and turn about 400hp. 6500 is too many miles to START adding power. You may also do a shortblock repair and reuse your old heads if $ is the big question. But do it right! the best you can afford! Hell if you can find a low mile 4v or get Ford Racing's Mach1 longblock!

3V2000GT · 04-23-2006, 03:25 PM

Quote:

Originally Posted by dfroster

First off, sorry to hear about your bad luck

Second, if you have to take out a loan you'll have to pay back, make it worth it. I'd use a DSS long block, you can go back with 281cid or even a stroker up to 306cid. There are other companies that offer crate motors as well. I'm thinking of a 306 longblock for my 1999(wife's car) it has 65000 miles on it and she wants more power, so it's upgrade to a new 06 GT or put about 4500 into a new motor and turn about 400hp. 6500 is too many miles to START adding power. You may also do a shortblock repair and reuse your old heads if $ is the big question. But do it right! the best you can afford! Hell if you can find a low mile 4v or get Ford Racing's Mach1 longblock!

Hey thanks for the info, Do you have any links i could go to for these engines?? And if i was to put a crate in there Wouldn't i Have to change the computer and mounting brackets and exhaust too????

Side note- anyone know any good loan companies of where i could take out some money to fix my car?????

WaterDR · 04-23-2006, 03:38 PM

Wow that really sucks! How many miles on the motor? That seems really strange for it to go like that. Have you been spraying a lot?? It will be interesting to see what you find when the motor is pulled apart.

3V2000GT · 04-23-2006, 03:45 PM

Quote:

Originally Posted by MT's#1Customer!

Wow that really sucks! How many miles on the motor? That seems really strange for it to go like that. Have you been spraying a lot?? It will be interesting to see what you find when the motor is pulled apart.

The motor only has 61,000 miles on it, and i have only sprayed twice in the last month and a half... this really sucks... but when its all said and done it should be real nice and fast...But what a pain in the ass

*03gtmustang* · 04-23-2006, 03:46 PM

Quote:

Originally Posted by The2000GT

Well went to the track today. Cars running pretty good, so i come up for my first run, I run a 14.7 @91.9 miles per hour. So i come to the end of the track come to a stop and I hear this really bad knocking sound coming from under the hood. And Im like WTF. So i roll up back in line and pop the hood and look and hear a very very lound knocking sound coming from the engine and reved it a bit and it got even louder. So im like F this im going home, So i get home (barely) and see if i can figure out what the problem is so i did a compression test and figure out that I have 3 cylinderrs that are bad, the compression was about half as the others in these cylinders.

Long story short i ran a 14.7 on 5 good cylinders ha ha, But I blew my engine!!!!
I dont know what i want to do, get it fixed to normal, get a new engine or rebuild with performance parts???? Oh yeah and i have no money, probably will have to put on credit card or get a loan!
Help me decide!

BTW The run was WITHOUT Nitrous!!!

Just because you werent spraying when it blew doesnt mean it wasnt nitrous related. What was your a/f and timing when you got the car dyno tuned?

3V2000GT · 04-23-2006, 03:47 PM

Quote:

Originally Posted by 03gtmustang

Just because you werent spraying when it blew doesnt mean it wasnt nitrous related. What was your a/f and timing when you got the car dyno tuned?

I dont know what the a/f is i havent gotten it dyno tuned.... was going to do that soon, i am only running a 50 shot also if that means anything

Icefreezen · 04-23-2006, 03:55 PM

Wow that messed up.....hell my has 84,000 and never had that s*** happen.....and this isnt nitrous related no way with a 50 shot mine takes 125 as if it were candy. Has to be a A/F issue ...man rip that thing apart and figure it out let us know

jeredan2003 · 04-23-2006, 03:56 PM

Only a 50 shot? That pretty much tells me that the problem wasnt nitrous related. Especially if you only sprayed it a couple of times. Just slap a low mileage shortblock on it and keep yourself out of debt as much as possible. Bieng in debt is one of the most frustrating things you can do. Dont go with a 96-98 shortblock because you will run into problems with the nitrous at such high compression.

Man im headed to the track on tuesday......hope it stays together long enough for me to run the almighty low 12s...

Icefreezen · 04-23-2006, 04:02 PM

When was the last time you changed your oil......lol....what its happend before

3V2000GT · 04-23-2006, 04:07 PM

I changed the day before i put the nitrous in, Which was about 1000 miles ago... And another weird thing is as soon as i blew it the oil pressure guage started going wacko up and down, i checked the oil and it was fine smelled fine too so i dont know....dont worry about it any ideas you guys have im open too....I think i am just gonna get a beater or see if i can borrow a car for the time being and take my time rebuiling or replacing the engine....

We'll call this operration rebuild The2000GT engine!! ha ha
But seriously guys think of anything I could do as far as rbuilding replacing etc and tell me

WaterDR · 04-23-2006, 04:21 PM

Well, we can only speculate until the motor is pulled. I do agree that the problem could be juice induced even if the failure happened n/a, although it is really hard to say.

Obviously if you find a burnt piston, then we have the first ever (that I know of) Venom induced nitrous damage. If you have only been running a 50 shot and at least checking your plugs (which I think you told me you were) then you should be fine. If you happened to spray with the timing advanced, then all best are off.

Like I said, we are only guessing. A motor autopsy will tell the whole story. And who knows, maybe you just need a ring job which is a pretty easy fix (at least better then other options) and you could be back on the road with minimal effort.

Then again....

WaterDR · 04-23-2006, 04:23 PM

BTW, I see you are selling your bottle heater. That would leave me to believe you never used it on your car, so your 50 shot is more like a 35 shot.

Did you have the o2 sensor tapped correctly? Lights all working right??? on th evenom, I mean.

Saleen S330 · 04-23-2006, 05:02 PM

So sorry

Now...step into the 5.4 side.......

3V2000GT · 04-23-2006, 05:12 PM

Quote:

Originally Posted by MT's#1Customer!

BTW, I see you are selling your bottle heater. That would leave me to believe you never used it on your car, so your 50 shot is more like a 35 shot.

Did you have the o2 sensor tapped correctly? Lights all working right??? on th evenom, I mean.

Yep everything is hooked up properly all the lights are working, Yep i have checked the plugs a coupld of times and everything looks fine, I mean the car runs, but with some very loud knocking, all the noise is coming from the cylider head and cylinders have low compression like 25-35 compared to the others witch are about 60

Saleen S330 · 04-23-2006, 05:25 PM

Those cylinders are dead, get a nice used short block or have one built from DSS if you going to buy one.

3V2000GT · 04-23-2006, 05:31 PM

Quote:

Originally Posted by Saleen S330

Those cylinders are dead, get a nice used short block or have one built from DSS if you going to buy one.

Are you sure the cylinders are bad? it could just be the valves sticking or not closing

3V2000GT · 04-23-2006, 07:46 PM

I was thinking and i thought maybe it could be a broken valve spring or springs, It doesn't sound like a rod knock, Its more of a high pitched ratling i wont be able to find out until the weekend to take off the valve covers, who knows??

RedFirevert04GT · 04-23-2006, 08:28 PM

If the oil pressure gage was bouncing up and down, I want to think maybe there's a spun bearing in the bottom end to go with your piston lands being screwed. That's just a guess though. That definitely does suck. It's also the reason mine won't see a track as long as it's used as a daily driver. Thankfully my 83 will be back on the road come this fall.

04-23-2006, 01:07 PM	#1 (permalink)
3V2000GT 46MONSTER Join Date: Jan 2006 Location: Wheaton, IL Posts: 2,209	Blew engine at track Well went to the track today. Cars running pretty good, so i come up for my first run, I run a 14.7 @91.9 miles per hour. So i come to the end of the track come to a stop and I hear this really bad knocking sound coming from under the hood. And Im like WTF. So i roll up back in line and pop the hood and look and hear a very very lound knocking sound coming from the engine and reved it a bit and it got even louder. So im like F this im going home, So i get home (barely) and see if i can figure out what the problem is so i did a compression test and figure out that I have 3 cylinderrs that are bad, the compression was about half as the others in these cylinders. Long story short i ran a 14.7 on 5 good cylinders ha ha, But I blew my engine!!!! I dont know what i want to do, get it fixed to normal, get a new engine or rebuild with performance parts???? Oh yeah and i have no money, probably will have to put on credit card or get a loan! Help me decide! BTW The run was WITHOUT Nitrous!!! __________________ 2000 GT Black on Tan, TKO 600: 370rwhp 370rwtq NA Built 3v 2004 Honda CBR 600 F4i Black/Red 2000 SVT Lightning Silver i love jinny!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!! lucky is awesome!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

04-23-2006, 01:35 PM	#3 (permalink)
3V2000GT 46MONSTER Join Date: Jan 2006 Location: Wheaton, IL Posts: 2,209	So i need a new bottom end??? So if want to rebuild my engine what do i need to replace?? __________________ 2000 GT Black on Tan, TKO 600: 370rwhp 370rwtq NA Built 3v 2004 Honda CBR 600 F4i Black/Red 2000 SVT Lightning Silver i love jinny!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!! lucky is awesome!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

04-23-2006, 03:38 PM	#8 (permalink)
WaterDR Administrator Join Date: Sep 2004 Posts: 6,370	Wow that really sucks! How many miles on the motor? That seems really strange for it to go like that. Have you been spraying a lot?? It will be interesting to see what you find when the motor is pulled apart. __________________ Black 2000 GT Vert: Novi-2000 with Intercooler (375rwhp @ 9 psi); Tune by Kauffmans; Roush 380R Body kit; Steeda Subframes; Steeda Strut Tower Support; Deep Dish Bullets; FRPP 4:10's; SCT 4 Position Chip with four custom tunes; Steeda CAI; C&L Pleum; BBK 75 TB; SLP Loudmouth; SLP Catted X-Pipe; Bullitt Suspension; UPR Conrol Arms; Focus Fuel Pump My Car My Email

04-23-2006, 03:55 PM	#12 (permalink)
Icefreezen Mustang Superman Join Date: May 2005 Location: Your mom's bed Posts: 3,908	Wow that messed up.....hell my has 84,000 and never had that s*** happen.....and this isnt nitrous related no way with a 50 shot mine takes 125 as if it were candy. Has to be a A/F issue ...man rip that thing apart and figure it out let us know __________________

04-23-2006, 03:56 PM	#13 (permalink)
jeredan2003 Senior Member Join Date: Nov 2004 Location: Murfreesboro, TN Posts: 1,788	Only a 50 shot? That pretty much tells me that the problem wasnt nitrous related. Especially if you only sprayed it a couple of times. Just slap a low mileage shortblock on it and keep yourself out of debt as much as possible. Bieng in debt is one of the most frustrating things you can do. Dont go with a 96-98 shortblock because you will run into problems with the nitrous at such high compression. Man im headed to the track on tuesday......hope it stays together long enough for me to run the almighty low 12s... __________________ 2003 DSG GT 5-speed Hellion 62mm and Flowmaster catback..... My bonestock 2v engine had been through 2 years of NX 100 shot, 3 years running 8-12lbs vortech s-trim, got into boost daily while racing on the weekends, had 157,000 miles on it, and was running like new

04-23-2006, 01:30 PM	#2 (permalink)
r3dn3ck Wowbagger hates me too! Join Date: Nov 2005 Location: Magrathea/California Posts: 6,858	find a used bottom end and slap it on, that'll get you running cheap on part costs. If you go 96-98GT for the bottom end you'll see a compression bump and a little more power. You probably beat the ring lands out of the 3 dead slugs so a full rebuild is kinda it if you stay in your existing block. Check craigslist.org and see if someone has a 4.6 for cheap. You can just do the bottom end or go whole hog and repalce the whole engine. Then you'll have your block left to do a build-up on for the next time. You can use 4.6 bottom ends from just about any 4.6 car or truck. Just make sure to use your oil pan and pickup and your front cover and heads/intake/headers.

04-23-2006, 01:44 PM	#4 (permalink)
matrixpuba Senior Member Join Date: Feb 2006 Location: tennessee Posts: 1,103	if you did not mess up the walls and their is enough material to go .030 over you could do that and add new rods and pistons and crank. or you could just get a new short block.

04-23-2006, 02:41 PM	#6 (permalink)
dfroster Senior Member Join Date: Mar 2006 Location: Jacksonville,FL Posts: 323	First off, sorry to hear about your bad luck Second, if you have to take out a loan you'll have to pay back, make it worth it. I'd use a DSS long block, you can go back with 281cid or even a stroker up to 306cid. There are other companies that offer crate motors as well. I'm thinking of a 306 longblock for my 1999(wife's car) it has 65000 miles on it and she wants more power, so it's upgrade to a new 06 GT or put about 4500 into a new motor and turn about 400hp. 6500 is too many miles to START adding power. You may also do a shortblock repair and reuse your old heads if $ is the big question. But do it right! the best you can afford! Hell if you can find a low mile 4v or get Ford Racing's Mach1 longblock!

04-23-2006, 04:02 PM	#14 (permalink)
Icefreezen Mustang Superman Join Date: May 2005 Location: Your mom's bed Posts: 3,908	When was the last time you changed your oil......lol....what its happend before __________________

04-23-2006, 04:07 PM	#15 (permalink)
3V2000GT 46MONSTER Join Date: Jan 2006 Location: Wheaton, IL Posts: 2,209	I changed the day before i put the nitrous in, Which was about 1000 miles ago... And another weird thing is as soon as i blew it the oil pressure guage started going wacko up and down, i checked the oil and it was fine smelled fine too so i dont know....dont worry about it any ideas you guys have im open too....I think i am just gonna get a beater or see if i can borrow a car for the time being and take my time rebuiling or replacing the engine.... We'll call this operration rebuild The2000GT engine!! ha ha But seriously guys think of anything I could do as far as rbuilding replacing etc and tell me __________________ 2000 GT Black on Tan, TKO 600: 370rwhp 370rwtq NA Built 3v 2004 Honda CBR 600 F4i Black/Red 2000 SVT Lightning Silver i love jinny!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!! lucky is awesome!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

04-23-2006, 04:21 PM	#16 (permalink)
WaterDR Administrator Join Date: Sep 2004 Posts: 6,370	Well, we can only speculate until the motor is pulled. I do agree that the problem could be juice induced even if the failure happened n/a, although it is really hard to say. Obviously if you find a burnt piston, then we have the first ever (that I know of) Venom induced nitrous damage. If you have only been running a 50 shot and at least checking your plugs (which I think you told me you were) then you should be fine. If you happened to spray with the timing advanced, then all best are off. Like I said, we are only guessing. A motor autopsy will tell the whole story. And who knows, maybe you just need a ring job which is a pretty easy fix (at least better then other options) and you could be back on the road with minimal effort. Then again.... __________________ Black 2000 GT Vert: Novi-2000 with Intercooler (375rwhp @ 9 psi); Tune by Kauffmans; Roush 380R Body kit; Steeda Subframes; Steeda Strut Tower Support; Deep Dish Bullets; FRPP 4:10's; SCT 4 Position Chip with four custom tunes; Steeda CAI; C&L Pleum; BBK 75 TB; SLP Loudmouth; SLP Catted X-Pipe; Bullitt Suspension; UPR Conrol Arms; Focus Fuel Pump My Car My Email

04-23-2006, 04:23 PM	#17 (permalink)
WaterDR Administrator Join Date: Sep 2004 Posts: 6,370	BTW, I see you are selling your bottle heater. That would leave me to believe you never used it on your car, so your 50 shot is more like a 35 shot. Did you have the o2 sensor tapped correctly? Lights all working right??? on th evenom, I mean. __________________ Black 2000 GT Vert: Novi-2000 with Intercooler (375rwhp @ 9 psi); Tune by Kauffmans; Roush 380R Body kit; Steeda Subframes; Steeda Strut Tower Support; Deep Dish Bullets; FRPP 4:10's; SCT 4 Position Chip with four custom tunes; Steeda CAI; C&L Pleum; BBK 75 TB; SLP Loudmouth; SLP Catted X-Pipe; Bullitt Suspension; UPR Conrol Arms; Focus Fuel Pump My Car My Email

04-23-2006, 05:02 PM	#18 (permalink)
Saleen S330 Banned Join Date: Jan 2006 Location: Sumter, SC Posts: 900	So sorry Now...step into the 5.4 side.......

04-23-2006, 05:25 PM	#20 (permalink)
Saleen S330 Banned Join Date: Jan 2006 Location: Sumter, SC Posts: 900	Those cylinders are dead, get a nice used short block or have one built from DSS if you going to buy one.

04-23-2006, 07:46 PM	#22 (permalink)
3V2000GT 46MONSTER Join Date: Jan 2006 Location: Wheaton, IL Posts: 2,209	I was thinking and i thought maybe it could be a broken valve spring or springs, It doesn't sound like a rod knock, Its more of a high pitched ratling i wont be able to find out until the weekend to take off the valve covers, who knows?? __________________ 2000 GT Black on Tan, TKO 600: 370rwhp 370rwtq NA Built 3v 2004 Honda CBR 600 F4i Black/Red 2000 SVT Lightning Silver i love jinny!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!! lucky is awesome!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

04-23-2006, 08:28 PM	#23 (permalink)
RedFirevert04GT Senior Member Join Date: Jan 2006 Location: Va Beach, Va Posts: 336	If the oil pressure gage was bouncing up and down, I want to think maybe there's a spun bearing in the bottom end to go with your piston lands being screwed. That's just a guess though. That definitely does suck. It's also the reason mine won't see a track as long as it's used as a daily driver. Thankfully my 83 will be back on the road come this fall. __________________ '04 Red Fire vert. KB 1.7L intercooled 9lb with all the trimmin's & Big Boost kit w/ Switch Chip. Mac catted h-pipe & Mac catback. 411RWHP / 414 RWTQ.