New L99 owner--Your bolt on/tune advice would be very welcomed!

[Supercharged SS]

Originally Posted by John Deere Racer

Then u need to reword what ur telling everyone

That they need to data log the. Send file to tuner then he'll send a tune

U just said mail tune would b good

Crap! Thanks for catching that. That is def not the message I was tryingnto convey. I thought I mentioned the logging part. Guess not!

[Supercharged SS]

Originally Posted by Fireslayer

Ok, this may the way to go for me, right now. As I understand it, you "tune" the ECM or motor, you're busted for sure. But, a tranny tune won't void the PT warranty? Is the tranny tune not going to show up in the ECM or ECU? How do you get a tranny tune? Is it downloaded like an SCT tune?

Theoretically if you breathe on the computer system wrong GM can give you a hard time. Will they? Who knows, but they always have the option to. Just be educated and prepared.

[Camarowguy]

Originally Posted by John Deere Racer

Lol never even have heard of Janetty til today

And I've had 3 ls1 cars and this is the second ls3 and I've run many 9 second passes with them all in a 6speed

Most b new
I only now of the big boys
LG , lmr, thunder racing, speed Inc, lpe,lme,etc

Thunder racing iswhere I've been getting my parts from and they tuned my car. Probably letting them put a stall in it soon. They are walking distance from my work...so it makes it really easy on me. Lol

[JANNETTYRACING]

Originally Posted by Fireslayer

Thanks for the welcomes and the replies! I just reread my original post and I think I should add some more.

I would like to shoot for a 30-50+ HP gain. No cam, no NOS, no supercharger. Exhaust, intake, tune (mail or dyno), and maybe a throttle body or pulley. I'd like to find a "package" or something that will work well without a bunch of monkeying around. I'm not a drag strip guy or street racer--although I am a fan of the Fast and Furious movies Nonetheless, fiddleing around with a car on a regular basis isn't something I want to do--would of bought vintage if that was the case. I'd like to "bolt on" once and be done.

I would like to be under or around $2K when finished. Hope this helps.

Ok, some more questions: Shorty headers--they are more quiet I assume? What kind of HP difference exist between them and traditional headers? I guess "traditional headers" are "LT's"??? Long tubes?

Could a shorty header system of some sort with CAI and a "mail" tune get me up to 50+ HP. I'd love to hear about some gains from baseline stock with something along these lines.

Is an email tune, from the likes of Jannetty or others, as good as a dyno tune? I wouldn't be willing to pay hundreds more to squeeze out an extra 3 HP that the dyno tune would give me in comparison to the SCT or email tune. 20 years ago--no wife, kids, mortgage--would of been a different story.

I've listened to some sound clips on youtube but there's too many variables, IMO, to gain any real accuracy from these. I did listen to a guy's LS3 with the GM catback exhaust and CAI at the grocery store. It sounded really nice. He told me it was good--according to them--for an extra 30 HP. I'm sure they wouldn't lie to him. Anyways.....thanks for the input. I appreciate you guys taking the time to reply.

Thank you for Considering JRE for your Mods.

I Believe I have Just what the Doctor Ordered Ready to go for you, it is our 415 RWHP Street Package 375 RWHP on the L99 or 40 RWHP 50 RWTQ over stock on Either car.

http://jreperformanceparts.com/gm/20...package-1.html

Consists of the CAI, LT headers High flow Cats, SCT tuner and FREE Custom Tune to bring it all together right at your quoted budget.

Add in a Vmax Ported TB, MSD wire, and an SLP underdrive pulley and belts and gain another 10-12 HP, all available on my site.

The Factory Cat back is Better than most believe, and really wakes up with this package, then later if you still want more sound you can always choose form many of the aftermarket systems or just do a Muffler Delete which is Cheap and sounds Fantastic.

For aftermarket systems we really like Corsa, and Magnaflow, and also carry Borla, MBRP, Stainless works, Flowmaster etc.

Ted.

[JANNETTYRACING]

Originally Posted by John Deere Racer

Lol never even have heard of Janetty til today

And I've had 3 ls1 cars and this is the second ls3 and I've run many 9 second passes with them all in a 6speed

Most b new
I only now of the big boys
LG , lmr, thunder racing, speed Inc, lpe,lme,etc

Nice to Meet you JDR, LOL Yeah I wish I was New, but I am 47 Years Old and been doing this since I was 16.

Been in business full time since 1986, we are the Largest Speed Shop in the Northeast, we never advertised because we never needed to to keep busy and grow at a comfortable rate.

It is amazing How small your world can get when you only hang around 1 or two forums.

There are Thousands of Successful speed shops all over the US that guys Say I never heard of them. LOL

Ted.

[radz28]

At the top of the list of mods' for an auto' car, I'd stab a looser converter in there and get a good tune. Aside from chassis mods' to control the rear (wheelhop), maybe CAI and exhaust would round out the top of that list and would make for an even better car than GM blessed us with. With an aggressive stall, tune, and traction, a similarly equipped M6 driver will be staring at taillights

[brantley847]

Originally Posted by Padre

Except that I did.

Padre

No... you didn't. There are holes throughout your whole entire statement...it is clear this thread has run its course..

1) No CAI is posting numbers above 20 without a tune and without a scoop. Period.

2) Highly doubt you post 20 with cats and stock manifold or shorties, but let's just give you the benefit of the doubt and say you put 15+.

3) You did NOT gain 20 with any shorties. The manufacture even admits their shorties primary function is to improve appearance and offer minimal gains netting approximately 5-10 hp without throwing CEL.

4) A tune will not net you a MPG loss when removing AFM. I gained 2.5 mpg for CITY DRIVING! after tuning out AFM. All AFM did was put us below the gas guzzler tax, and that is good enough for me... now time to get rid of it. A reputable tuner will provide you with much more efficient operating vehicle... mine, as well as almost every other tuned L99 on this webpage has had the same results.

axis and mike are both right, you have gone beyond assisting this gentleman, and are now either pumping your ego with numbers you think exist.

We are discussing the gains in reference to RWHP. What you have is a dyno or street tune which has numbers well off their mark. It happens all the time... I don't care if in one run you did 6 mph faster than another... there are far too many factors to even include weather temps and elevation that can factor into the equation for us to discount your statements.

Now, if you had a tune done and netted another 15-20 hp w/ a pulley and LTs... you are talking to people who have the exact same motor you do and are claiming gains 20-30 hp greater than all of us with the exact same mods WITHOUT a tune? Come on, man....

let me refer to the MEME thread...... there we are

[The Stig]

Guy's, lets place nice OK. No need to thread jack the OP. If you have a disagreement about the numbers you are putting down either A) take it to the strip and figure it out there or B) do it via PM, Camaro5 does not need more drama.

Side note: I made that meme

[wirebender]

I agree^
A tune only creates possible warranty issues IF there is a problem with the vehicles powertrain.

[Cpanthers85]

Okay, so I am new to team L99 too, and this is a great thread, minus the bickering about how much HP people are putting out with their mods. I don't want to Hi-Jack the OP's thread, but hopefully, it will answer some questions he has too...

1) If we do a CAI, do we need a tune? Doesn't it throw off the MAF tables pre-programmed in the ECU? Will it eventually throw a CEL if we DONT have a tune?
2) Can anyone divulge a little on the L99 to LS3 conversion? Is it worth it? How much does it cost?

I know for myself, I'd like to eventually do a LT Catted Headers, a CAI and a Tune. I already have the FlowMaster AMT. I have been kicking around the LS3 conversion...but I also saw the Edlebrock SuperCharger kit.

[Cpanthers85]

Oh! One last thing... Is it true, like with the old Camaros, the header bolts rattle loose and theres problems with the cars running hotter, etc?! Because, to the OP's point, if thats the case... Headers aren't a bolt-em-on-and-your-done, kind of mod...

[Padre]

Panther, the LS3 conversion is expensive and you have to pop the heads. It's not worthing doing unless you're also doing a cam, and while you've got the heads off, many people port the heads also.

I've not heard of anyone with rattling header bolts.

Padre

[Padre]

One other thing for the CW guys: not many of us have done shorties and middies on the L99. Most everyone goes straight to LTs precisely because of the CW that says shorties make no gains. So I decided to try something different (mainly because of cost and ease of install) and I was pleasantly surprised by the results.

But because there are comparatively few shorty guys vs. LT guys, there's just not a lot of data out there other than the CW. If you can show me someone's thread with verified dyno/track results that their shorties did not gain much, then we can compare that to mine and try to figure out why mine did so well.

But other than that, it's just arguing an opinion (the CW) against actual facts on the ground.

Padre

[mikeSS]

padre, i dont care what BS you give us. dyno, track blah blah blah, its simply NOT possible, the stock ecm can only go so far. any shop here would say the same, but of course they do not want to get into this debate.

so i am going to leave it at that. you have your self totally convinced, so i am not going to bother anymore.