View Poll Results: intake swap?
intake swap with no re-tune
5
50.00%
wait on the swap
5
50.00%
Voters: 10. You may not vote on this poll
re-tune for new intake manifold?
Thread Starter
Staging Lane
iTrader: (3)
Joined: Mar 2009
Posts: 64
Likes: 0
From: H-Town, Southern Cali
re-tune for new intake manifold? ok so i just dyno tuned my 99z28 after my 6.0 swap. my question is ...if i replace my stock ls1 intake manifold with an ls6 manifold, do i have to re-tune?
to a degree yes it will learn, if your CL is enabled and O2's functioning perfectly. however, with the number of people who dont/cant use CL, they gotta do all the adjustments by themselves.
Joined: Apr 2004
Posts: 1,378
Likes: 14
From: Atlanta, GA Ft. Walton Beach, FL
FAST78, 85mm MAF,80mm TB & injectors before retune I had a HP tune after the street stripe cam, then added a FAST78 intake manifold.
I was hopping the PCM would learn this new intake manifold.
I'm planning on reaming out the opening of the fast78 to 80mm and adding a
zo6 85mm MAF and 30lb injectors then mods will be done for this 346CI motor
and one final tune.
you're thoughts on this plan
Thanks
I was hopping the PCM would learn this new intake manifold.
I'm planning on reaming out the opening of the fast78 to 80mm and adding a
zo6 85mm MAF and 30lb injectors then mods will be done for this 346CI motor
and one final tune.
you're thoughts on this plan
Thanks
I had a HP tune after the street stripe cam, then added a FAST78 intake manifold.
I was hopping the PCM would learn this new intake manifold.
I'm planning on reaming out the opening of the fast78 to 80mm and adding a
zo6 85mm MAF and 30lb injectors then mods will be done for this 346CI motor
and one final tune.
you're thoughts on this plan
Thanks
I was hopping the PCM would learn this new intake manifold.
I'm planning on reaming out the opening of the fast78 to 80mm and adding a
zo6 85mm MAF and 30lb injectors then mods will be done for this 346CI motor
and one final tune.
you're thoughts on this plan
Thanks
To the OP the Trims can only do so much, and when at WOT it doesnt use the the 02s for fueling its all MAF and off the PE table
Joined: Apr 2004
Posts: 1,378
Likes: 14
From: Atlanta, GA Ft. Walton Beach, FL
75mm MAF swap to 85mm MAF on a mildly modded WS6.
do the stock 75mm MAF max out at WOT sending inaccurate reading to PCM resulting in incorrect fueling?
if yes then will a ZO6 85mm MAF also max out or is it plainly a better air meter?
Thanks
do the stock 75mm MAF max out at WOT sending inaccurate reading to PCM resulting in incorrect fueling?
if yes then will a ZO6 85mm MAF also max out or is it plainly a better air meter?
Thanks
Trending Topics
EDIT: when using the Z06 MAF you need the 5 pin adapter because the IAT sensor is integrated into the the MAF.
Last edited by mcamarols1; Nov 18, 2009 at 09:55 AM.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
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 Joined: Apr 2004
Posts: 1,378
Likes: 14
From: Atlanta, GA Ft. Walton Beach, FL
Lid, bigger MAF Yes I think you're correct about the 75mm MAF good for 500RWHP.
?since I'm only at 380RWHP the 85mm MAF maybe a wasted effort? or could possiablly make car run worse?
I'm curious about enlargeing the MAF ? when you installed the 85mm MAF did you have to get a larger air lid for it to fit?
I haven't bought any of this stuff yet, I'm just planning.
Thanks
?since I'm only at 380RWHP the 85mm MAF maybe a wasted effort? or could possiablly make car run worse?
I'm curious about enlargeing the MAF ? when you installed the 85mm MAF did you have to get a larger air lid for it to fit?
I haven't bought any of this stuff yet, I'm just planning.
Thanks
Don't mess with your MAF, it would be a waste of time and money with your setup.
Joined: Apr 2004
Posts: 1,378
Likes: 14
From: Atlanta, GA Ft. Walton Beach, FL
It really comes down to what you want to do with the car in the future. If you plan on getting heads, a matching cam for the heads, then dont waste your time doing things twice, but if its a budget minded street car, your stock MAF and a Ported TB will get the job done. You would still need to tune your car and get the STOCK MAF recalibrated to get it to run optimal....but its all on what your budget can handle.
Joined: Apr 2004
Posts: 1,378
Likes: 14
From: Atlanta, GA Ft. Walton Beach, FL
It really comes down to what you want to do with the car in the future. If you plan on getting heads, a matching cam for the heads, then dont waste your time doing things twice, but if its a budget minded street car, your stock MAF and a Ported TB will get the job done. You would still need to tune your car and get the STOCK MAF recalibrated to get it to run optimal....but its all on what your budget can handle.
I was thinking do a few small mods before this retune plus when I installed the FAST 78 I have my suspions on not glueing the MAP sensor good enought (or the glue has hardened and cracked) creating a everynow & then check engine light.
If I have to remove the intake to reglue mite as well open it up a bit.
Yes it's mainly a street car, my plan is to mile it up as it is, really can't use all the power on the street tires it's making w/ a street stripe cam and LTs.
Looks like I'll have the man retune for the intake and just enjoy it for a few more years, then go all out and hog wild.
Thanks Guy's for excellent feedback
Last edited by badmfkr; Nov 21, 2009 at 06:56 AM.
Thread Starter
Staging Lane
iTrader: (3)
Joined: Mar 2009
Posts: 64
Likes: 0
From: H-Town, Southern Cali
thx for all the info so far guys. im still contemplating throwing my ls6 intake on there and seeing how much it will learn before i re-tune. my other option is just waiting untill i get my new heads but not to sure when i can afford that. so throwing on the ls6 intake is tempting right now.
If you have to pay for an additional tune, I would NOT do it and the car will run fine. Your only going to gain a couple HP from the LS1 to the LS6 manifold.
IF you brought your car to a tuner that give you free upgrade tunes, then Id stop by, but he wont change much anyway.
IF you brought your car to a tuner that give you free upgrade tunes, then Id stop by, but he wont change much anyway.
Yes,it's a good idea. Just did a car a few days ago that swapped the intake like you. The A/F was 13.8-1 across the board(from 12.8-1 before intake)So it needed some more fuel.
Thread Starter
Staging Lane
iTrader: (3)
Joined: Mar 2009
Posts: 64
Likes: 0
From: H-Town, Southern Cali
... ok so guaranteed i am getting the car tuned after the intake swap thats no problem. im learning a ton right now since im new to tuning. so my options right now are pretty simple. A- do the swap and ride without re-tuning for the intake for about 3 or so months until i put on the new heads and then do a dyno tune with new heads and intake. i do daily drive the car but pretty much locally. as far as racing goes i dont plan on any track time until the heads and tune are finished. but maybe a little street fun here and there. B- just wait on the swap until im ready for the heads and do everything at once. im just at a crossroads because the intake is just sitting there waiting to go on and i just made 395rwhp without it. haha 4??rwhp just sounds fun and pretty much guaranteed attainable with the intake. i definitely dont want to hurt anything so let me know what you guys think. thx a lot guys everyone here is awesome!
Last edited by SunOfZ; Nov 22, 2009 at 04:47 PM. Reason: was not finished