Same tuner 3 blown engines

[Krace]

From what I have seen throughout the years, PD blowers (on more boost than a stock roush s3 or anything over 550whp) and anything 150 and plus shot of nitrous. You are running with a ticking time bomb.

The stock coyote rods just can't take the hard shock of instant tq from a PD blower or nitrous. Over time they start to bend and then just fail. This makes for sporadic failing of the motors and impossible to predict when they will fail.

Whats even more crazy, is that the motor will just all of a suddenly fail without warning, it happens slowly and after abit of time the motor just gives up.

So, after a week from racing your car hard, driving to work the car just randomly blows up.

Its easy to blame the tuner or the installer. But its hard to just take the blame yourself for using the wrong build.

 

[Tuffnuts23]

With only a 400rpm difference between your nitrous shutoff rpm and your redline, wouldn't bouncing it off the limiter possibly dip it back into your spray window?

 

[NickSezz]

Like many have stated, these cars were being pushed hard. I see the posted rwhp but no the rwtq of these cars.. The failure is most likely not due to bad tuning. When those tunes were ordered you indirectly asked for the likely hood of engine failure...

If any of the owners of those three cars called me and asked for a tune for their combination I would have not sold them a tune because we do not want to be an accomplice in blowing peoples motors and having that rep.

 

[Sick_Mustang]

If it was a tune issue I suspect there would have been a piston failure..

Thrown rod = making too much power for stock rods

durr

Plain and simple......

 

[Riptide]

Wahhh? I thought these engines could safely handle 600whp. Have I been lied to???

 

[Ignotbullet]

If you want to modify your car you have to accept that there are risks.
When modding (especially with a power adder) you are pushing the car beyond what it was designed to do. If Ford thought 600hp was safe they would have released it with 600HP and sold more units at a higher price.

No tuner can make your rods stronger or your pistons forged, that's up to the owner.
That said, when selecting a tuner I like to hear about past experience, track record, customer service, attention to detail, etc.

My tuner can actually be kind of a pain in the ass sometimes telling me he won't tune this and he won't do that, but I know he is doing it both for my own good and to protect his reputation so I am glad he does it that way.

Regardless of whose fault it is I appreciate you sharing your experience with us. Good luck with your rebuild. I assume from your thread you will be finding a different tuner.

Ford racing does offer a 2.9 supercharger with 624hp with warranty. So I feel like some where down the line ford engineers thought a little over 600hp is safe. Mine put down 550whp with drivetrain percentage loss I should be around 632hp at the engine almost the same as what ford warranties. Yes I know supercharger and nitrous put the power down differently put I was just putting out a point of reference.

Yes I will either go with JPC, AED or BBR which I have had my car tuned by them before and they did a great job.

 

[01bluesnake]

You would think that if someone windowed a stock motor, they would install a built motor if trying to push the next motor even harder. Nope, then Windows a second motor and still puts another stock one in and pushes its limits again. Tune wasnt the problem as many have said.

 

[tt335ci03cobra]

John Lund has a great reputation.

People over build their stock 5.0 blocks and then flock to him for a tune thinking he can defy physics.

This page shows 3 have blown up next to the hundreds he's tuned.

The 3 that blew definitely were seeing the hard side of life.

It's tough having a great reputation because you end up getting the limit runners in and when they end up busting, that great reputation gets questioned.

I blame the owners of the cars for poor planning/driving/et al.

John Lund is not the problem here, fantasy expectations are, you cannot defy physics, you may hold physics at bay but you're walking a hair thin fine line, what do you expect?

Sorry to those that have blown, it's a terrible feeling and I wish it on no one, but I lay fault on the car owner, not the tuner here.

Show me datalog of detonation, etc, ok I'll consider the tuner at some fault.

Otherwise, owners issue to deal with imho. You should research the risks before doing $2-5-10,000 worth of power adder work on a hypereutectic assmebly.

 

[oldbones]

If you want to modify your car you have to accept that there are risks.
When modding (especially with a power adder) you are pushing the car beyond what it was designed to do. If Ford thought 600hp was safe they would have released it with 600HP and sold more units at a higher price.

No tuner can make your rods stronger or your pistons forged, that's up to the owner.
That said, when selecting a tuner I like to hear about past experience, track record, customer service, attention to detail, etc.

My tuner can actually be kind of a pain in the ass sometimes telling me he won't tune this and he won't do that, but I know he is doing it both for my own good and to protect his reputation so I am glad he does it that way.

Regardless of whose fault it is I appreciate you sharing your experience with us. Good luck with your rebuild. I assume from your thread you will be finding a different tuner.

You using Justunes? Out of MC? BTW Panhard works awesome, no squeaks, clunks, or rattles.

 

[Riptide]

How much does a 175 shot make on these cars + full boltons?

 

[Ignotbullet]

http://m.youtube.com/watch?v=T6UCPHk6wrY

Video of it blowing up

 

[Weather Man]

One was only at 9psi making 490rwhp which is not pushing the engine by any means and it still blew up.

One bad fill up is all it takes.

 

[burke985]

How much does a 175 shot make on these cars + full boltons?

Enough to blow it up apparently

 

[charba951]

Pickles got it right. Too much power without building the motor is a nono

 

[nonliberal]

You using Justunes? Out of MC? BTW Panhard works awesome, no squeaks, clunks, or rattles.

Great glad to hear it!! :thumbsup: It's a very lightweight piece too.
Shaun Perry does my tuning.

 

[mjohns930]

Ford racing does offer a 2.9 supercharger with 624hp with warranty. So I feel like some where down the line ford engineers thought a little over 600hp is safe. Mine put down 550whp with drivetrain percentage loss I should be around 632hp at the engine almost the same as what ford warranties. Yes I know supercharger and nitrous put the power down differently put I was just putting out a point of reference.



Yes I will either go with JPC, AED or BBR which I have had my car tuned by them before and they did a great job.

624 bhp with a 6800-7000 rpm rev limit. You're running up over 7000. RPM is a huge stress.

 

[01bluesnake]

Just saying..


This supercharger comes as a complete package, and it's available in three levels: a 525 hp kit with a 12 month/12,000 mile vehicle engine
warranty; a 624 hp kit (with no warranty)

Right from FRPP, so not sure what you read. Maybe a blower warranty, but definitely not engine.

 

[4VFTW]

How exactly is the stock rod breaking Lund's or anyone elses fault? Im especially interested in hearing the technical details from the op that would explain the rod failing from improper tuning.

 

[97tc]

7800 rpm with power adders smacking off the rev limiter and 14 psi on stock rods and pistons. I can only say I'm not surprised!!

 

[NickSezz]

624 bhp with a 6800-7000 rpm rev limit. You're running up over 7000. RPM is a huge stress.

Also, there is also no 2.9 offering. The kit is a 2.3 Whipple with different pulley options. The 624 kit has the 3.375 (8-9psi) pulley and with the FRPP tune you would be lucky to see 525whp and 450wtq.