Engine gave up the ghost.

[Todd]

I guess I put to much through the motor... I smoked a ring lan from what I can tell. Engine runs but has tick and smoke on start-up. Also ground strap on #8 was pushed against electrode.

Oh well, I knew I was going to do a forged bottom end. I just wanted it to be on my terms... And when I could arrange transportation since this is my only car...


I am looking into my options tomorrow and guess I will proceed from there.


Now I know how some of you guys have felt..... This sucks!


Anyways, just wanted to vent a little.

[natedog1284]

Sorry to hear that Todd. I've been left sitting by my car 3 times in the last 6 months, and it too is my only car, so I know how you feel. Just look on the bright side; once you do the forged bottom end, you'll be set for a long time. I guess you've made up my mind as to whether I should do forced induction or a forged motor first. Buck up buddy, all will be well. FYI, whenever I wanted to put my fist through a wall in a Marauder related mishap, alcohol and shotgun shooting, (not combined of course), worked well to ease my suffering. (Of course, if my motor blows now, they WILL be combined, and probably directed at the car :rolleyes:). Keep us posted man.

Nate

[merc]

Holy Cow, I feel your pain :shake:

[RR|Suki]

here here brother I fell ya man... Mine sat for 5 months after my motor went... now it's in the body shop after getting hit in a parking lot.
It'll work out you;ll see :D

[FordNut]

At least you didn't ventilate the block!

You could always drop another stock engine in and drive it while the old one is being built...

[Rider90]

Sorry to hear about this Todd. Good luck and keep us informed on the build up when you do it.

[DEFYANT]

Sorry to hear about this Todd. Good luck and keep us informed on the build up when you do it.

What he ^^^^ said. That sucks. Hang in there and keep us updated.

[STLR FN]

I hate when that happens. Good luck on the rebuild.

Todd's Marauder, daily driver, a car barely alive. Gentlemen, we can rebuild it, we have the technology. We have the capability to make the next forged engine. Todd's Marauder will be that car. Better than it was before. Better. Stronger. Faster."

[jimlam56]

Todd:
Let me know what I can do to help.
I'm only a phone call away...

[snowbird]

Sorry to hear about your misfortune. Being in Jacksonville, you at least have a lot of choice for reputable shops and or parts distributors and the turn around should be fast. :(

Keep us posted.

[Todd]

Thanks guys....


I did a compression test yesterday and all cylinders were perfect. All between 195 and 205. Thats what pisses me off the most. It basically is a running engine but with no support for the ring in that cylinder.

At least this is my assumption based on all fact and after talking with my cousin who is certified ase mechanic and the mechanic for Steeda. He was a big help to calm me down and put things into perspective.


Thanks for the offer Jim. I may take you up on it! But I hope I will come up with an option in the next couple days and be set. First priority is finding somehting to drive so I can take my time on making the decision.

Thanks again guys!!! I needed that vent!

[Todd]

Sorry to hear about your misfortune. Being in Jacksonville, you at least have a lot of choice for reputable shops and or parts distributors and the turn around should be fast. :(

Keep us posted.


Yes I do. There are lots of good guys around locally. Dennis is here, I have a friend here for parts. Much better position than being in a place without good vendors!!!!!

[martyo]

Todd:

I am sorry to hear of yoru troubles.

Look at this as an opportunity! :D

[Bradley G]

Do you feel this was a matter of time?
Anything different, you would have done?
Here's to building a new motor!:beer:
Hoping you have some of the six millon dollars left.

[bryanthomas]

Was your car F/I or N/A? :confused:

[Zack]

KArKraft has rebuilt Cobra shortblocks for $2650

[Marauderman]

Sorry to hear of your problem---same thing happen to me--I just had engine re-built--and in Jax there Dennis can fix you up---give him a call-

He might have another engine to put in so you can drive while repairing the other one--as Fortnut suggested.........good luck-----Tom

[Todd]

Todd:

I am sorry to hear of yoru troubles.

Look at this as an opportunity! :D

Thanks Marty!
Thats what I am trying to do!!!

I was going to do the forged bottom anyways..... But like I said above, just wished it was on my time. I had a plan for second transportation. Now I am in a jam.

But I have already ordered a larger turbo so I am getting prepared for it... Yea, thats what I am doing!!!! :coolman:

[Todd]

Do you feel this was a matter of time?
Anything different, you would have done?
Here's to building a new motor!:beer:
Hoping you have some of the six millon dollars left.


Just a matter of time. I was at the limits of the motor. 450hp and over 500 tq on a mustang dyno. My boost was ver low. only 8 psi. I just was at the limits... I could have, and now realize should have, lowered the boost to 7 psi which is the spring setting on the wastegate. Especially due to the heat we have had the last few days.

[Todd]

Was your car F/I or N/A? :confused:



Turbo charged.

[Todd]

KArKraft has rebuilt Cobra shortblocks for $2650 I was looking there as well. They are one of my options for sure!

[RoyLPita]

Keep us posted.

[KillJoy]

KArKraft has rebuilt Cobra shortblocks for $2650

HEY! I was going to say that! :D

:banana2:

KillJoy

[JMan]

Todd,
Sorry to hear of your trouble. That's the kind of thing that happens to me - I plan to do something and then I'm forced to do it at an inconvenient time. Usually, it's my wife's decision! Many years of marriage tends to keep the ideas in the head and off the tongue.

Did you have any pinging going on? Modular 4.6's (All except Cobras) are known for stretching rods at high RPM's. It's not that it's common but it happens. This typically happens on a very hot engine that has been twisted to the max and is immediately returned to closed throttle. The usual tell-tale is the scrunched ground electrode on the plug. Doo-doo happens! At least you still have a candidate for rebuild if there's no head damage. It could be alot worse.

Best of luck in your quest - to paraphrase previous posters: Use this opportunity to purchase a forged Cobra powerplant and let the fun begin! :burnout:

J

[Bradley G]

As in '03 '04 ?
KArKraft has rebuilt Cobra shortblocks for $2650

[KillJoy]

Factory Brand New!! 4.6 Cobra short blocks
http://www.karkraft.com/cobra_short1_small.jpg (http://www.karkraft.com/cobra_short1.jpg)http://www.karkraft.com/cobra_short2_small.jpg (http://www.karkraft.com/cobra_short2.jpg)aluminum block
8 bolt steel crank
hypereutectic pistons
fits 99/02 Cobra. can be used for 96/98 Cobra by enlarging knock sensor holes from 5/16" to 3/8". includes oil pump, pick up and windage tray.
service part number XR3Z-6009-BA
List price $4,364.90 Our Price $2595.00 #KK6009C

[KillJoy]

Here is another option:


http://www.karkraft.com/COBRA_ENGINE5_small1.jpg (http://www.karkraft.com/COBRA_ENGINE5.jpg)Brand New 4.6 32valve Cobra Engine
1999/2002 version
complete with fuel injection
$4295.00 #KK6007C

as is this...

http://www.karkraft.com/MARAUDER_LOW1_small1.jpg (http://www.karkraft.com/MARAUDER_LOW1.jpg)2003 4.6 4V Marauder
Complete with fuel injection
18,228 miles
$2895.00 #KK6007UM




KillJoy

[juno]

As in '03 '04 ?

They're gone!!! :( But they do have 99/02 cobra short blocks for 1995.

[RR|Suki]

gooood luck my man....

[Bradley G]

Thanks for sharing this Todd.
This could be valuable info. for turbocharged Marauders'.
Besides lowering the boost one PSI, would you change anythig else?
ie.
different fuel?
A/F settings?
quote=Todd]Just a matter of time. I was at the limits of the motor. 450hp and over 500 tq on a mustang dyno. My boost was ver low. only 8 psi. I just was at the limits... I could have, and now realize should have, lowered the boost to 7 psi which is the spring setting on the wastegate. Especially due to the heat we have had the last few days.[/quote]

[ckadiddle]

Sorry to hear that, Todd. Best of luck with your options.

[Hotrauder]

Todd, Good luck with your rebuild. We all keep our fingers crossed that we don't have your problem as we push our cars harder and harder. The racers know that the drive train problems are just around the next corner and plan for them. The rest of us are doing racing stuff and hoping not to hurt our street ride. So... we are always pushin and hopin. No doubt sooner or later we get caught. Sorry it was you. Good luck. You need anything from the Tampa area let me know. Dennis :(

[Todd]

I think it is all the same issues any other charged marauder has to deal with...

I should have kept the power a little lower. The torque/power split of other power adders is much closer. Hp is usually higher than torque or at least really close. With turbos the torque is almost always higher than hp.

So I should have detuned and lowered the boost to a level around 450 tq and whatever hp.

It was tuned VERY conservatively. 14 degrees timing total. So it would have been just a mater of lowering the boost more and detuning even more. But I knew I was going forged and thought it would last a little longer at the higher numbers.





Thanks for sharing this Todd.
This could be valuable info. for turbocharged Marauders'.
Besides lowering the boost one PSI, would you change anythig else?
ie.
different fuel?
A/F settings?
quote=Todd]Just a matter of time. I was at the limits of the motor. 450hp and over 500 tq on a mustang dyno. My boost was ver low. only 8 psi. I just was at the limits... I could have, and now realize should have, lowered the boost to 7 psi which is the spring setting on the wastegate. Especially due to the heat we have had the last few days.[/quote]

[Todd]

Todd, Good luck with your rebuild. We all keep our fingers crossed that we don't have your problem as we push our cars harder and harder. The racers know that the drive train problems are just around the next corner and plan for them. The rest of us are doing racing stuff and hoping not to hurt our street ride. So... we are always pushin and hopin. No doubt sooner or later we get caught. Sorry it was you. Good luck. You need anything from the Tampa area let me know. Dennis :(



Thanks for the offer Dennis.

We all are chasing a bullet. Sometimes the bullet turns around and catches us before we expect!!!!

[ridinclean]

Im sorry to hear this Todd, youve had to deal with alot already. Look at the bright side, once you get everything worked out your MM will be ridiculous...Let me know if theres anything I can do.

[Todd]

Im sorry to hear this Todd, youve had to deal with alot already. Look at the bright side, once you get everything worked out your MM will be ridiculous...Let me know if theres anything I can do.


Thanks Matt... I appreciate it.

The expectations of what the car will be is the only thing keeping me from taking a match to it.

[Marauderjack]

Just for the information bank.....My tune is set at 12* max advance at WOT and if the IAT goes over 100* it pulls another 2* of timing....very conservative and probably pretty safe at 9 to 9.5# of boost?? Basically a 91 octane tune.:beer:

It still runs like a wild beast but I may be missing a couple tenths in the 1320 but I don't really care as I haven't run it at the strip yet....that's coming though!! ;)

Good Luck with your build Todd!!

Marauderjack:burnout:

[JMan]

Todd,
New member Rick@Amazon has stated in his thread he has a Cobra motor sitting around . . . hmmmmm. Maybe you should contact him.

http://www.mercurymarauder.net/forums/showthread.php?t=26790

Again, best luck,

J

[Todd]

Todd,
New member Rick@Amazon has stated in his thread he has a Cobra motor sitting around . . . hmmmmm. Maybe you should contact him.

http://www.mercurymarauder.net/forums/showthread.php?t=26790

Again, best luck,

J


Thanks Jman. I may give him a call.... I am working with Dennis Reinhart on getting a shortblock done and maybe some head work done as well. I already have the new, much bigger turbo on order... So I need big power capability in the block.

I appreciate all the advice and help Dennis!!!!


The only downfall with the stock cobra shortblocks are the pistons are very good, but not great. Thats one of the first things guys wanting to make big power change.

Granted, if you get a good deal on a cobra shortblock and just pull it apart to put new pistons you will most likely come out better price than building from scratch.