So I got it done a couple weeks ago. Not worth $600. 11 HP gain a bit more torque gain is all. He told me to take out the DIY CAI I made because the ECU could possibly get fried so I put the stock box back with a k&n drop in. I also found out my front upper motor torque mount was broken, the 1 people flip. Anyways after replacing that the car launches a ton better. When I took the old bushing out the middle part just fell out.....

 

I say this with respect to you but if your shop guy said a CAI can fry your ECU, you need to find another garage. That coupled with the fact he said "ECU". Theres several components to the "ECU" and him not specifying which one hes referring to shows he may not know much about these cars.

 

holeshottuning.com if you want to check him out. I just did a google search and he came up with the highest ratings in the area and supposedly is the best on LS engines from his reviews......

 

ECU is an old term for "Electronic Control Unit", a lot of people still use that (as the manufacture evolves the tech in their cars, now you have specialized computers). These cars have a PCM (commonly called ECU), BCM and EBCM.

I fail to see how any CAI could "fry" a ECU/PCM..... And people (myself included) have been running these cars with a large variety of CAI. I would love to hear exactly how a ducting change would "fry" anything. Heck, my ex-wife has a 2001 v6 Mustang, her brother and I popped in a simple FWI. She has had some shops look at issue since our divorce and some of them were blaming the FWI with no explanation. In my opinion, it is people who lack understanding and want to simply blame a problem on something they fail to understand.

As for the minimal gains from the dyno tuning, if my memory serves that was mentioned as to the expectation with a pretty close to stock vehicle.

Side note, not all people doing tuning are the same. There are general tuning concepts, yes. But there are people who understand some drivetrains better than others.

Just enjoy the car. If you decide to upgrade to more mods, perhaps have another session for tuning.

 

 

he called it the PCM. I'm new to these cars this guy is the best at LS engines in Sacramento look up his reviews or if you have instagram @holeshot_performance he works on gnarly cars every day and is usually all booked up i got lucky. I reposted my dyno results because I did not see them prior after someone asked my #s. He knows what hes talking about, its me translating it incorrectly because I know barely anything about LS4s so please without starting **** dont insult him until you check out what he really does, that being said $600 still not worth it.

 

No offense intended, and I'm really not trying to tick you off here - but I'm not sure what else you expected. Id mentioned previously in this thread that stock LS4s only get about 10-15 wheel and it sounds like that's right about where you landed. Theres just not a lot of meat on the bone there from the factory.

 

I should have chimed in sooner, but there is something to be said here for a dyno tune vs. street tune. When tuning your pcm to the dyno, your looking for a "numbers gain". The timing is adjusted to make bigger power on the dyno machine. That does not always translate to a faster quarter mile time because the dyno can not perfectly replicate all the real world conditions like load, resistance, etc. Dyno tuning is great if "the numbers" are what you are after - that is the goal for a lot of builds. But if you want the car to go it's fastest, a street tune is better. If you can get you mechanic/ tuner to the track with the car, you could see additional gains in actual speed as he dials it in there.

But it's still probably not worth it until you've built it up a bit

 

That was me asking about numbers, just curious. Not trying to bad mouth or start anything, was a simple miscommunication. We only have the best interests in mind for the members here.

Still curious to hear why he says the CAI could fry something, however.

 

He said that about my DIY CAI because there was no heat shield.