A Day with a ZL1 in the eyes of Torq!

[lakersftbl69]

Lol idk then I thought I was just trying to figure something out

[rmyers]

Originally Posted by lakersftbl69

still though i feel its still a big hp loss compared to the amount we lost on our ss

I think it would be consistent. 17% of 580 is 26 more than 17% of 426.

[fbodfather]

Originally Posted by tooslow

You do know that all the LSA engines are broken in at the factory before they are ever placed in the chassis, right? Little chance of any engine bearing failure due to not following the recommended break-in procedure. And last I checked, Scott is not a mechanical engineer.

You are correct - I am not a mechanical engineer.

You are incorrect in that the LSA engines are not broken in at the factory before they are placed in the automobile. That is why we have a section in the owner's manual that talks specifically to the break-in period. You will note that we didn't do this for the Gen III naturally aspirated engines.

I'm strongly suggesting that owners of the ZL1 follow our suggested break-in period.

[lakersftbl69]

Originally Posted by rmyers

I think it would be consistent. 17% of 580 is 26 more than 17% of 426.

I see now I just guess I was looking at it differently thanks guys

[lakersftbl69]

Idk I just inside of me I feel like still it shouldn't be that big of a loss

[fbodfather]

Originally Posted by hognutz

.

Until I see some kind of engineering reason to break something in for 1500 miles I am not going to follow it.

That is certainly your perogative - it's your car.

However, we don't just make this stuff up.

[ddavis]

Originally Posted by lakersftbl69

still though i feel its still a big hp loss compared to the amount we lost on our ss

If you want to see alot of drivetrain loss, dyno a awd car . Then this doesnt look so bad. Overall some solid numbers here which would lay the smackdown on most stock cars.

[Texzen]

Originally Posted by lakersftbl69

Idk I just inside of me I feel like still it shouldn't be that big of a loss

Understood but physics is physics. No getting around loss of power when introducing extra gears, shafts, moving bits, etc...

[toehead93]

You guys need to lighten up on dyno numbers. They are accurate for tuning and comparing numbers on the same day. There are so many factors that go into the results hich is why it is silly to think every car should have exaclt 15% or 17% loss to the wheels. The only real accurate way that I know of to measure power is the engine dyno, which is why all engine manufacturers have one. Add the fact that Erik pointed out in the first post the heat in the shop was higher than normal amd the car was experience high heat soak issues just adds to all the factors that affect the numbers.

Erik, will this beast be at this weekends autocross?

[Texzen]

Originally Posted by toehead93

You guys need to lighten up on dyno numbers. They are accurate for tuning and comparing numbers on the same day. There are so many factors that go into the results hich is why it is silly to think every car should have exaclt 15% or 17% loss to the wheels. The only real accurate way that I know of to measure power is the engine dyno, which is why all engine manufacturers have one. Add the fact that Erik pointed out in the first post the heat in the shop was higher than normal amd the car was experience high heat soak issues just adds to all the factors that affect the numbers.

x1000

[KKreme15]

Originally Posted by lakersftbl69

Idk I just inside of me I feel like still it shouldn't be that big of a loss

Higher HP number, higher the loss is. It increases proportionally

[daveagogo1]

I was always on the fence about "break in" also. When i picked up my SS i decided to do the break in period. A couple guys i know did not and really got into them right away.

Nothing scientific here and certainly NOT gospel but, here are some results i will share.

Last trip out to the drag strip all 3 of us made 5+ passes.

ME A6 100% stock other than a CAI.

Other A6 (Tuned - catback - CAI - catch can )

M6. (Tuned - catback - CAI - catch can)

My only losses of the day was by .1

Now i realize you can call the M6 a wash due to many factors. But, the other A6 "should" have beaten me handily but it didn't.

I matched both these cars within one tenth.

Possibly due to recommended break in period i performed?? Maybe it is.

[radz28]

Originally Posted by tooslow

Not unless you place the nozzles to spray after the air charge has passed through the intercooler, otherwise the incoming meth-cooled air would actually be heated up by passing through the factory setup. If there were any cooling benefits, they would be minimal, at best.


You do know that all the LSA engines are broken in at the factory before they are ever placed in the chassis, right? Little chance of any engine bearing failure due to not following the recommended break-in procedure. And last I checked, Scott is not a mechanical engineer.

FWIW - I found an article in GMHTP where Redline tested meth' on their HTR850-car, with a 3.6L KB. That car was having issues with heat soak at 17 psi (427 ci) and the PCM was pulling a lot of timing. Anyways - Tanner installed a stage II system and nozzles in the inlet, behind the TB, in front of the blower inlet, and they gained almost literally 100 RWHP back from the meth cooling the charge. I'm not sure it this is normal, however, that's what the test results were. I believe this was a February or March issue of this year. Take it for what it's worth http://www.gmhightechperformance.com...eat/index.html

I'm sorry Torq to bring another Sponsor in, but it was somewhat related. No disrespect intended

Respectfully...

[jazznurse]

Originally Posted by fbodfather

That is certainly your perogative - it's your car.

However, we don't just make this stuff up.