One More #8 Kids!

[19COBRA93]

3.) Put forged rods and pistons in these things already.

I agree. I've rebuilt a 5.0 using the Boss parts, and I've got a brand new Boss shortblock here (that's going in the classifieds soon) that's a nice piece of work. I think Ford should have gone that route in all of them.

 

[JEWC_Motorsports]

The forums are driven more to the person who is going to mod the car. If i was going to just drive the car and never had plans of modding it, why would i search for a forum. Also your average person might search for number 8 failure and see only tuned car failing. To them they are not in that situation so they will just let the dealer deal with it. I believe any car can fail at anytime, modded or stock. They are built of many parts and those parts are not foolproof.

 

[UltraKla$$ic]

I just changed my oil. I took new oil out and put newer oil in. Do you think my #8 piston will hold up with fresh oil?

Jus wondering.....................

 

[19COBRA93]

I believe any car can fail at anytime, modded or stock.

You can believe that all you want, but you're just fooling yourself. The reality is, they're just not failing.

We hear about the clutch issues all the time on both stock and modified cars. That's a design problem, and we hear about it from all ends. I've seen numerous bone stock 5.0's come in to my dealership for clutch problems. What I/we are not seeing are cars coming in for piston problems.

I just changed my oil. I took new oil out and put newer oil in. Do you think my #8 piston will hold up with fresh oil?

Jus wondering.....................

Unless your new oil does a better job of pulling heat out of the #8 piston, then there will be no difference.

 

[302]

Hey 19cobra93, how much does a set of boss pistons run and are they a direct replacement on a regular GT engine?

 

[19COBRA93]

Hey 19cobra93, how much does a set of boss pistons run and are they a direct replacement on a regular GT engine?

I'd recommend running the Boss rings, pins, and rods as well. And you'll need the rotating assembly re-balanced if installing either/both. Yes, they'll work in the stock GT engine. Same bore, same stroke, etc. Technically the Boss crank is different too, but the GT crank works just fine.

Boss pistons can be had for about $65 each, the ring sets (for one piston) are about $11. The pins are the heavy duty GT500 pins, and are about $12 each. The rods are about $20 each.

A rebalance will run you anywhere from $150-250. All that plus gaskets and fluids.

 

[GrabberBooGT]

Sadly, I read somewhere that Ford only saved itself $40 per car by not using forged pistons.

 

[19COBRA93]

Sadly, I read somewhere that Ford only saved itself $40 per car by not using forged pistons.

The difference in price for the pistons is considerable (like $400). The rods, not so much. They didn't save much by not using the Boss rods. In fact, from a parts standpoint, the Boss rods are actually cheaper right now.

 

[pacettr]

You can believe that all you want, but you're just fooling yourself. The reality is, they're just not failing.

We hear about the clutch issues all the time on both stock and modified cars. That's a design problem, and we hear about it from all ends. I've seen numerous bone stock 5.0's come in to my dealership for clutch problems. What I/we are not seeing are cars coming in for piston problems.

x2

We haven't seen any either.

 

[Ssiptang]

that's why i love my 2010 so much.. tried and true 3v/5spd powertrain with the styling and interior of the 11. plus i don't have the stupid convex mirrors or back seat headrests lol

Yea riiight... I'd rather rock a stock 5.0 with a few suspension mods and run deep into 12s all day long problem free than mod a 3v to run same times. But don't get me wrong, I love my 2010 LOL. It's like a retarded step brother of mustang world. So unique

 

[jayman33]

I just changed my oil. I took new oil out and put newer oil in. Do you think my #8 piston will hold up with fresh oil?

Jus wondering.....................

LOL, smart ass.

So, do you think that getting forged internals would in fact help eliminate this problem? Do you think the boss pistons and rods are sufficient? I really don't want to throw down all this money and someone later saying that shit won't help.

 

[KungFuHamster]

Im going to drive mine on the ragged edge while its bone stock. Im going to see how well #8 holds up on a stock car.

Knock on wood, all 6 of our cars with BBR tunes are running perfect.

am i included in the 6?

 

[Rob72]

The stock rings aren't cast. They're plasma-moly.

According to 5.0 magazine only the Boss has a plasma coated top ring. I tried to find out what the Coyote rings were made from but i could not find any links so I assumed they were cast. Your resources tell you that they're definitely moly? Thanks in advance.

 

[Jarrod@latemodelresto]

am i included in the 6?

Lol, out of 924 customers, we have had 0 engine failures with our BBR tune program.

Has your engine blown? I take it as a no since i haven't gotten a PM about it.

Both RTR's, the v6 car and 3 plain ol 5.0's that are employees cars is what i was getting at in the 1st post.

 

[GrabberBooGT]

The difference in price for the pistons is considerable (like $400). The rods, not so much. They didn't save much by not using the Boss rods. In fact, from a parts standpoint, the Boss rods are actually cheaper right now.

Sorry, slight (typo) error. Bottom line, the cost doesn't seem substantial.

I'd recommend running the Boss rings, pins, and rods as well. And you'll need the rotating assembly re-balanced if installing either/both. Yes, they'll work in the stock GT engine. Same bore, same stroke, etc. Technically the Boss crank is different too, but the GT crank works just fine.

Boss pistons can be had for about $65 each, the ring sets (for one piston) are about $11. The pins are the heavy duty GT500 pins, and are about $12 each. The rods are about $20 each.

A rebalance will run you anywhere from $150-250. All that plus gaskets and fluids.

So, how much to pay someone to do all this work if you don't want to do it yourself? Does the motor have to come out?

 

[KungFuHamster]

Lol, out of 924 customers, we have had 0 engine failures with our BBR tune program.

Has your engine blown? I take it as a no since i haven't gotten a PM about it.

Both RTR's, the v6 car and 3 plain ol 5.0's that are employees cars is what i was getting at in the 1st post.

well i went out to the track at Crandall on 15 July and made 4 passes...i think it finally cooled off to ~91 degrees when we left that night. i wont lie i was a little apprehensive before we left.

btw, 111 mph in 99 degree weather with just a CAI/tune/O/R Xpipe? nice.

 

[stkjock]

Sorry, slight (typo) error. Bottom line, the cost doesn't seem substantial.

it is when you produce 2,000,000 units a year

would it be nice if they offered a forged motor as an option - yes, however from a business standpoint a company looks to produce at the lowest costs, if not, they take bail out moneys.

 

[Jarrod@latemodelresto]

well i went out to the track at Crandall on 15 July and made 4 passes...i think it finally cooled off to ~91 degrees when we left that night. i wont lie i was a little apprehensive before we left.

btw, 111 mph in 99 degree weather with just a CAI/tune/O/R Xpipe? nice.

Very nice. When we went to mustang week i ran a 13.58 @ 102 in are 2011 Project V6 car. It was 100 degrees with all kinds of humidity. DA around 3500 or so. Car will run 12.90's all day long in Texas.

Im pretty sure i remember seeing your thread on DFW about heading out to crandall. I need to make a trip down there soon in my 5.0.

 

[19COBRA93]

According to 5.0 magazine only the Boss has a plasma coated top ring. I tried to find out what the Coyote rings were made from but i could not find any links so I assumed they were cast. Your resources tell you that they're definitely moly? Thanks in advance.

I have a full set of rings that I took out of an '11 GT that melted down. The moly had flaked off a lot of them. This is how I know. The Boss rings are also plasma-moly (I've got some of those too), but supposedly a different compound (although visually the same).

The 2nd ring is the same between both motors, and are both cast iron with the little oil scraper "reservoir" groove (nice ring for OEM).

So, how much to pay someone to do all this work if you don't want to do it yourself? Does the motor have to come out?

Yes the motor absolutely has to come out. I don't know what labor rate would be through a shop (a lot), but I personally would charge about $1200 to do the work on the side, not including parts. The work is really not much different than a 3v.

Timewise, the only differing part of this motor over a 3V, is to get the head bolts out/in, you have to remove the camshafts. A 3V you just work around them.

 

[wbt]

i believe a subpoena would find out how many stock cars have blown up. there could be 0-100-500-1000 with failures we will never hear about on a message board.


im beginning to believe its happening no matter what is or is not done to the car.


not only have i pulled a bunch of timing out of the tune, but i just dont drive it hard at all now. i never know when heat buildup will blow it.


thank god i built a real motor like ford never did so i can have fun driving again.

Trade it in on a Camaro and be done with it. Enough mis-information has been spread:

http://www.camaro5.com/forums/showthread.php?t=160995&page=3