Do you have to get a tune after LTs?
Do you have to get a tune after LTs? I want to do long tubes but i cant afford much more than the headers themselves, and the ypipe. Do you have to get a tune after long tubes? How much is it?
You dont have too but it will optimize the hp gain. Depending on which shop full dyno tunes usually average around $450-500bucks. You could do a mail order tune for $150 but a full dyno tune would be much better
Is there any alternative to full tunes at a shop? Not including the mail in ones. I really dont have $450 to spend after the headers. Also, is the car definitely going to run shitty without a tune? I can deal with not having the max power right away but not if the car runs really bad.
TECH Resident
Joined: Feb 2003
Posts: 827
Likes: 0
From: Dallas, TX
Originally Posted by spy2520
Is there any alternative to full tunes at a shop? Not including the mail in ones. I really dont have $450 to spend after the headers. Also, is the car definitely going to run shitty without a tune? I can deal with not having the max power right away but not if the car runs really bad.
I did run some EFI Live logs and then adjust with a MAFT though just to make sure everything was safe.
11 Second Club
Joined: Feb 2003
Posts: 5,524
Likes: 1
From: The South
You should be fine. Every car is different but the vast majority arne't off by that much, a little power left on the table is all. I ran over a year after headers and didn't consider getting a tune till I put a cam in.
Trending Topics
TECH Enthusiast
Joined: Jan 2004
Posts: 742
Likes: 0
From: Cincinnati, OH
I'm basing this following statement on a few of my buddies LS1 cars-WAIT FOR THE TUNE!!!!!!!! You will need it more if you go further into this sickness we know and love. If you get a "LT" tune, and then 3 months later get a cam, or heads, or intake, or nitrous blah blah blah you will need a new tune anyways. Just do the LTs and tune when you step up to your next level. IMO.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
I got mine tuned after the LT install, but like 4mula I wanted to get some things deleted. I got rid of A.I.R., CAGS, rear O2s (I went ORY), speed limiter etc. I had Texas Speed dyno tune mine. Since they're close, and I wanted to get it dynoed anyway I figured why not. Jason at TSP got me over 20WHP from tuning alone. Granted I do have other mods than just LTs. I am going to do a cam, but it will be awhile. Before I do cam I have to do clutch, rear end, tires and some suspension. Power is worthless if you can't get it to the ground, and I've already entered the realm of traction problems.
In short is it absolutely necessary? Usually not. Is it/can it be beneficial? Absolutely.
In short is it absolutely necessary? Usually not. Is it/can it be beneficial? Absolutely.
Joined: Jun 2004
Posts: 1,501
Likes: 7
From: Ft. Irwin, California (But Virginia is home)
Originally Posted by spy2520
I want to do long tubes but i cant afford much more than the headers themselves, and the ypipe. Do you have to get a tune after long tubes? How much is it?
Schantin
2002 Camaro Z28 M6
Originally Posted by Dustin 98TA
It may run a little rich at idle and part throttle. At WOT it should be OK.
Now that I'm doing a complete head and cam swap I'll be needing a serious tune. I'm either going with the mail in from Futral or the custom tune from running with the devil. I've got the Predator tuner so I can upload his tunes via email. Mallory ignition is about 20 miles from here and they have a dyno for my wide band runs.
I just need my heads!!! The guy doing them also owns his own business in which he builds aero parts. He's building an R&D part for Boeing right now and it's taken all of his free time for the last few months. I think he's close to being done though, hopefully I'll have my heads and cam in a few weeks.
When I'm done I'll have custom ported 5.3 heads with 2.02" intake and 1.585 exhaust (Manley Pro-Flows all around). 60-61cc chambers with PRC gold springs, titanium retainers etc. and Futral Motor Sports F14 cam running through 4.10s with an M6.
Damn, now that I typed it out I'm getting excited again
Last edited by ssheets; May 29, 2005 at 02:11 AM.
11 Second Club
Joined: Feb 2003
Posts: 5,524
Likes: 1
From: The South
Originally Posted by thatcamaroguy
Your ecu should be able to sense the flow and tune accordingly...
I am also going to run an offroad ypipe and noe air and egr. I know i need a tune to get that stuff deleted, but will it still run ok with no cats, and a cutout. I'd imagine the difference in backpressure would do something weird.
Also, it shouldnt be that much just to get the EGR, AIR and rear 02 codes deleted should it?
Also, it shouldnt be that much just to get the EGR, AIR and rear 02 codes deleted should it?
ttt...I am also going to run an offroad ypipe and noe air and egr. I know i need a tune to get that stuff deleted, but will it still run ok with no cats, and a cutout. I'd imagine the difference in backpressure would do something weird.
Also, it shouldnt be that much just to get the EGR, AIR and rear 02 codes deleted should it?
Also, it shouldnt be that much just to get the EGR, AIR and rear 02 codes deleted should it?
I would use a scanner or borrow one just to see what your car is doing after the LT install and make a change if needed. I did LT's a few weeks ago and I can't get my LTFT's in the - area. Every car is different.
Last edited by rotwiler; Jun 5, 2005 at 08:36 AM.
TECH Regular
Joined: Nov 2001
Posts: 402
Likes: 0
From: STL
Originally Posted by spy2520
ttt...anybody