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Posting for LUV MY RT....hurt motor last Saturday

15760 Views 130 Replies 32 Participants Last post by  chris1992
LUV MY RT asked me to post this for him since I'm on the forum a lot more than he is.

LUV MY RT from the forum and I are good friends. He's local and we go to the track together. Those of you at ChallengerFest last year will remember him and his wife having the black R/T with the Vortech supercharger.

Last Saturday we went to Beech Bend to run a few passes.

We both slapped on our M&H DRs and he's first to go down the track. He ran a personal best of 12.42 at 110.64. He's got the Vortech setup on his 09' Challenger R/T Auto and was running stock Vortech boost which I believe is 6.5psi and he's running the the Boost A Pump. The temps at the track were in the high 60s and he was running high octane Sunoco fuel. The car was custom tuned, but I'll let him go in to that if he wants.

I didn't see him pull back around after his run so I go to our pit area to check on him. He's sitting in the car with it idling and tells me it feels like it has a miss. I listen to the exhaust and it sounds OK, but the engine was jumping around like he had a big lopey cam in it. NO check engine lights though. Weird.

I figure he's spun the crank pulley and gotten something off balance. We give GSO a call for a 2nd opinion and he asks a few questions and says it might be a broken motor mount since there were no CELs.

The car gets him 120 miles home....still no CEL, but its running pretty rough by the time he gets in the driveway. No smoke or anything outta the exhaust.

He pulls all the plugs and finds one of the plugs in cyl 7 has a bent electrode. The plugs in cyl 1 are fouled. The rest of the plugs look good.

He does a compression check and starts with cyl 7 since it had the bent electrode plug. It reads fine. He calls me and we think he's dodged a bullet. He goes ahead and checks the compression on the rest of the cylinders just to be sure and finds the compression in cyl 1 is way way low.

Crap! He does a wet compression check to see if it's a piston or a valve....turns out it's a piston as when he added a bit of oil to the cylinder the compression came right up.

He's looking at options now and will be coming up with a plan to get back up and running. We're hoping he can still make ChallengerFest2 but things aren't looking good at this point.

I'm sure Greg will post in to this thread when he has time to get on the computer, but he wanted me to give you guys a heads up.
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Any of the Arrington triplets running faster than stock engine, low boost maggies at the track?I'm big on results,for money spent!:scratchhead:
Arrington is top notch, you can't base there reputation on the slow 6 speed cars. they got Rick Ellis in the 9's and GSO in the 10's with there 426.
However HHP has the best Hemi Engine with BES period.
You know where I stand bud hope all goes well.
Brent at DTP is the man!
My experience has been when you start dumping money into the car you better pay attention to detail, I myself was a slow learner. I'm paying attention now after 40k
I think Greg has a solid plan. I need to give him a call later today to see what he's deciding on.

One thing to consider is that his wife drives this car to work just about everyday and will only see the track a few times a year. I think his goals are in the 500 - 525RWHP range. Should be easily achieved.
Any of the Arrington triplets running faster than stock engine, low boost maggies at the track?I'm big on results,for money spent!:scratchhead:
I keep seeing this question being put out there. How much faster should they be than a stock engine?
They have considerably less compression than the stock engine.
They are only a 6.0 engine, so barely bigger than a 5.7.
They are running more boost, but that leads back to the low compression.
I guess I do not see in these builds what every one else sees that says they should be doing that much more than a stock car? To me these engines seem to have been built for longevity in mind and yes make them a little bigger while at it with going to a 6.0.
The dyno results seem to show they make about 80 more HP than a stock one with a Magnacharger, once again how much more should they make with the actual differences between their 6.0 and a stock 5.7?
Sam has run a 11.8/118 mph.
I personally see very well built engines, that are built to last and run just fine for what they have. And I am sure they will run better with more seat time, speedy has picked up like 7/10s from better tires and more seat time.
Arrington can build any one a monster if you want, I would not base their work on these builds. As it appears they did not set out to build monsters but good reliable engines.
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I keep seeing this question being put out there. How much faster should they be than a stock engine?
They have considerably less compression than the stock engine.
They are only a 6.0 engine, so barely bigger than a 5.7.
They are running more boost, but that leads back to the low compression.
I guess I do not see in these builds what every one else sees that says they should be doing that much more than a stock car? To me these engines seem to have been built for longevity in mind and yes make them a little bigger while at it with going to a 6.0.
The dyno results seem to show they make about 80 more HP than a stock one with a Magnacharger, once again how much more should they make with the actual differences between their 6.0 and a stock 5.7?
Sam has run a 11.8/118 mph.
I personally see very well built engines, that are built to last and run just fine for what they have. And I am sure they will run better with more seat time, speedy has picked up like 7/10s from better tires and more seat time.
Arrington can build any one a monster if you want, I would not base their work on these builds. As it appears they did not set out to build monsters but good reliable engines.
480 hp stockblock stickshift cars run 11.8/118mph.The mph shows your power.Would you build a low compression,high boost engine when high compression,low boost out performs it on the track?Low boost helps with longevity.
Correct, Arrington can build whatever you want. I asked for 500RWHP street car and 100K mile reliability, they gave me 550RWHP. I've had it a year and had two small problems (needed a stronger idler pulley bracket due to the 12lbs of boost and the fuel hat rubber line failed). Arrington MORE than met my after sale support expectations taking care of both issues PROMPTLY.

That's why I have no problem recommending them to anybody.

Curious about who's running 11.8/118 with 480HP in a 6 speed car though? That's getting a bit off topic, so please PM it to me so we can keep Greg's thread on track.
Correct, Arrington can build whatever you want. I asked for 500RWHP street car and 100K mile reliability, they gave me 550RWHP. I've had it a year and had two small problems (needed a stronger idler pulley bracket due to the 12lbs of boost and the fuel hat rubber line failed). Arrington MORE than met my after sale support expectations taking care of both issues PROMPTLY.

That's why I have no problem recommending them to anybody.

Curious about who's running 11.8/118 with 480HP in a 6 speed car though? That's getting a bit off topic, so please PM it to me so we can keep Greg's thread on track.
http://www.challengertalk.com/forums/f100/11-83-video-53298/
11.83/117.8
I asked you to PM it to me to keep this thread on track.

That's Dan. He's more than 480HP and has extensive experience with stick cars. I wouldn't expect you to know that having not been around long, so no big deal. I've seen a data log from his car.

Now please keep this thread on track. Start a new one if you wanna talk about how fast a car should be.

I'll be back later, gotta jump on a plane to fly out to the TX mile with Sam. He ran 173.4MPH last time, can't wait to see what he does this time.
look here http://www.challengertalk.com/forums/f100/magnacharger-bone-stock-stock-motor-54487/
How can cars with 600 rwhp run the same MPH as a car with under 500rwhp??? This is not an Arrington bash...Just the numbers are confusing me??
RMG, lots of people see it the same way you do.
Speedy is right start a new thread, the days of thread jacking are over this is Gregs thread
Sorry for the thread jacking,but this is a DCX Depot thread.The Arrington salesmen already jacked it.
Made it through security at the air port unscathed....what a freakin' hassle.

This is not about DCX or Arrington. It's about a failed R/T motor and next steps. Quit trying to derail the thread.

Gonna call Greg when I get to TX to see what he's thinking about doing.
Sorry for the thread jacking,but this a DCX Depot thread.The Arrington salesmen already jacked it.
LMAO.... your funny
I keep seeing this question being put out there. How much faster should they be than a stock engine?
They have considerably less compression than the stock engine.
They are only a 6.0 engine, so barely bigger than a 5.7.
They are running more boost, but that leads back to the low compression.
I guess I do not see in these builds what every one else sees that says they should be doing that much more than a stock car? To me these engines seem to have been built for longevity in mind and yes make them a little bigger while at it with going to a 6.0.
The dyno results seem to show they make about 80 more HP than a stock one with a Magnacharger, once again how much more should they make with the actual differences between their 6.0 and a stock 5.7?
Sam has run a 11.8/118 mph.
I personally see very well built engines, that are built to last and run just fine for what they have. And I am sure they will run better with more seat time, speedy has picked up like 7/10s from better tires and more seat time.
Arrington can build any one a monster if you want, I would not base their work on these builds. As it appears they did not set out to build monsters but good reliable engines.


a lot of guys look at this wrong.. maybe its not much faster.. or making more power.. but the fact is they will handle more when you throw more at it.. so even if my baby 5.7 beats speedys 6.0.. eventually mine will fail and he will be at sonic having a milkshake while im waiting on my arrington or bes longblock...

PK.

6 speeds are not slow.. they just have scared or bad drivers....

my cann tune had an air fuel of greater than 10.0 to 1... good reason to have good tune...
a lot of guys look at this wrong.. maybe its not much faster.. or making more power.. but the fact is they will handle more when you throw more at it.. so even if my baby 5.7 beats speedys 6.0.. eventually mine will fail and he will be at sonic having a milkshake while im waiting on my arrington or bes longblock...

PK.

6 speeds are not slow.. they just have scared or bad drivers....

my cann tune had an air fuel of greater than 10.0 to 1... good reason to have good tune...
I don't know about... anything you can throw at it.. 426 Over Achiever - Track video included - Dodge Challenger Forum: Challenger & SRT8 Forums
Any engine can blow with a bad tune or fuel issue.Not a big fan of the Mahle pistons,they use them in the factory engines too.You need a good tune and gauges no matter what.I know Mopar performance parts come with no warranty or most speed parts for that matter.So,getting stuff like this warrantied will be tough.You got to pay to play as they say!
So have you figured out what you're gonna do LUV?
Seems to me that if the tune was faulty is would have reared it's ugly head a lot sooner. I'm going to guess on the info in this thread that it was done in the late summer?

What kind of duty cycles are the Injectors seeing? Or are these upgraded with the BAP? Injectors should be allowed to exceed 80-85 max they will fail or act poorly.

IMO.................

If you want to boost ANY NA car, upgrade the fuel system completely. Larger Injectors, adj fuel regulator w/ boost reference and return line and a Walbro etc. Even consider the fuel line diameters both in and out.

Also spend another 450-500 bux and get a meth kit for the love of God! Lower intake temps, decarbon the chambers, increase octane, no detonation etc..........you don't have to tune the car to the bone so if the should be a issue the car is still safe. Just toss in some -20 washer fluid and Rock Out!

Sorry about your Engine LM R/T. Boosting a high compression NA motor is not for those short of nerve or the poor in the wallett.

Good Luck.
Marion
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meth FTW i agree there
Ouch..sorry to hear about your troubles. Im local, if you need any help, let me know.
This car is now in the loving hands of Arrington Engines (ShopHemi.com). Should get interesting now.
you see, out of every tragedy comes humility,hope and horsepower?
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