https://www.tamparacing.com/forums/s...ews-today.html

https://www.tamparacing.com/forums/s...session-3.html

Im not bashing the shop, just informing people that this isnt the first time.

 

Just another statement about the dyno operator.The guy with the 240 told them to let out when he saw his A/F go past 16, and they did not let out they finished the run.Just seems like to me if someone yells stop around a dyno there's usually a reason.Why go on and possibly cause damage?

 

Sorry about your car Jerry. I refuse to let other dyno operators run my car. 13sec pull loaded like that will kill it almost everytime. That is serious heat being generated under loading conditions.

 

For those wondering if I talked with S&R about my car before posting, the answer is yes and no. I asked about the load parameters three times. First answer I got was that the load is not ajustable. This was on the first day when I could clearly see there was too much load. Second time I inquired the answer was yes we learned it was user error. That was on the second day minutes before throwing my car on the rollers. The third time I brought up the subject Jim just walked away with no desire to discuss it. This was just a few days ago . Its been clear to me from day one that the dyno was placing too much load on pulls. The problem comes from S&R not understanding what too much load means and what it unded up doing to my car. I wasn't present when the Suby dynoed but it appears it suffered a similiar fate for the same reason. I didn't see the point in argueing the point that they damaged my car when they dont even understand the concept of too much load. The only way to duplicate a 13 second pull from 3000-5200 with my car would be to hit the brakes and the gas at the same time and hold it for 13 seconds..That will never happen on the street. They would first have to admit that the dyno should not have been loaded the way it was. And that it was their resposibility to see that it was. They spent 80,000 on a dyno, sent Jim off to the training class so he could operate the dyno correctly but failed to operate it correctly if you ask me.

I also spoke with Bobby about what happen on the dyno. He did approach me with geniune concern. I said at that time that the blown gasket was likely due to having a low spot on the cylinder head. I did blow a gasket at the track when the alky pump failed on me. The gasket blew on the same number one cylinder. At that time I already and a 2.3 shortbock built so in it went. I later found the blown gasket and saw that it was not blown in the same spot.
So it wasn't some fault in the cylinder head just waiting to happen. And besides the pull at the track resulted in audible detonation all the way through 3rd and 4th gear. I didn't let up because I was racing the guy next to me. The damage to the engine was nothing more than a blown gasket. And this was on the stock cast pistons which are perfect. The meltdown occurred on forged pistons. No matter how I slice it, and I have had plenty of time to diagnose correctly, the damage to my car would not have happen if the dyno was loaded correctly. It is a real shame that cars were damaged. I feel real bad about it. I wish it were just one of those things that just happens in the performance world.

 

sucks Jerry, heard about this. S&R is reading the thread right now so I'll give them a chance to chime in

 

bingo!!

 

I feel your pain! My subbie blew up on there as well on the friday before the Turbotrix tunning. I've had my car for 3 yrs always maintained it well never drove it hard or red lined it etc. I thought ..hey a free dyno pull that would be awesome just to see what numbers I put down. Well those were the worst 10mins of my cars life!

Now I need a new short block. Apparently the user error was not corrected by then. I have not contacted S&R about ti since they told me going in that if the car blew up it was on me. And made me sign the waiver. But they have read my posts on here and have not made any attempt to correct it or even apologize for putting a stock car under that much load when the obviously didn't have it calibrated or understand the load.

Long and short, I'll never put my car on a dyno again! I learned a very expensive lesson. I wish them well at S&R and hope they get it straightend out. Because they seem like a great shop.

 

wow well reading this i wouldnt go there. why would they push a car that hard? i feel its sort of common sence that if, even stock, a car is going 10+ seconds in one gear, there is a problem there.. exp when were talking turbo 250+whp cars

 

Bobby will be on here soon to respond.

 

To Jerry,

I’m sorry about your misfortune
But here are the facts.

The Dyno is a load barring Dyno. This means Dyno can break down every RPM per Sec. You have the option from 200 RPM per Sec to 2000 RPM per Sec. The slower the climb, the more accurate the reading.
When you were here Saturday you saw the Busa running and saying it was loading the bike up and taking to long. Here is a couple things didn’t pay attention to

• .Eddy controllers were turned off…..So there is no load.
• The owner took his time climbing up the rpm.

Jerry was operating his own car on the Dyno.

I’m questioning your ability on engine building. Why would you put a cylinder head on another Engine when it just blew a head gasket? Why wouldn’t you have your head milled? In fact you told me the head gasket blew in the same place.

My A/F has nothing to do with your engine blowing up. You had your own wideband that was reading in the 12’s. The O2 was bad and I have new in place and it is working great.

According Mark French you are pulling 17 degrees timing which is way too much.

I have an open door policy here. Not once did you approach me about this problem.
I have done 180 pulls since you. While Mark from Turbo Trix was here he never touched the Dyno.

Show me somewhere where it says that a load on a Dyno is the same on the street.
The only thing S&R performance is at fault here is some miscalculated HP Numbers that have been fixed. I have already posted a thread about the corrected numbers.

I would be willing to hold a class on how a Dyno works.