what's the secret
Different strokes for different folks I guess.
The guy who is tuning my car has been tuning LS engines forever so when he advises against running more than 12 lbs. on straight 93 pump with a decent A2A I'm inclined to listen.
I'm not trying to argue, just offering another perspective and of course I realize the combination also determines these types of factors.
The guy who is tuning my car has been tuning LS engines forever so when he advises against running more than 12 lbs. on straight 93 pump with a decent A2A I'm inclined to listen.
I'm not trying to argue, just offering another perspective and of course I realize the combination also determines these types of factors.
If he really said that then you need to find a new tuner or expand his viewpoint. You can run a lot more then 12lbs on pump reliably, especially with that little compressor.
9 Second Club
Joined: Nov 2003
Posts: 13,616
Likes: 185
From: Norn Iron
And people have run that boost on std compression near 11:1 on pump. Obviously that does carry more risks....but many do it and for a very long time.
Gotta give it up to the guys willing to go outside of popular belief and see if the earth really does fall off just past the horizon.
I too, see the importance of quench induced combustion chamber turbulence... but who knows? Maybe a little extra timing to make up for lack of burn rate along with additional air mass in the cylinder will produce a situation where the gains outweigh the losses before detonation becomes an issue?
Curious to hear the outcome.
I too, see the importance of quench induced combustion chamber turbulence... but who knows? Maybe a little extra timing to make up for lack of burn rate along with additional air mass in the cylinder will produce a situation where the gains outweigh the losses before detonation becomes an issue?
Curious to hear the outcome.
I know of a Ls6 vette running 8psi of boost. Kept making power at 19*. Put aftermarket rods and pistons in it to drop the compression .5 and now doesn't take timing or make as much power now. I need to figure out the quench difference on that one.
TECH Regular
Joined: Sep 2014
Posts: 433
Likes: 0
Hope we get some results to review.
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
Hey ____, these two guys on an internet forum said you can boost way more than 12 lbs. on pump 93, in fact up to 20-25 lbs and that I should find a new tuner or open you should open your mindset...
Annnnnd now I have to find a new tuner because of you dicks lol. ; )
Hmm, how would that sound?
Hey ____, these two guys on an internet forum said you can boost way more than 12 lbs. on pump 93, in fact up to 20-25 lbs and that I should find a new tuner or open you should open your mindset...
Annnnnd now I have to find a new tuner because of you dicks lol. ; )
Hey ____, these two guys on an internet forum said you can boost way more than 12 lbs. on pump 93, in fact up to 20-25 lbs and that I should find a new tuner or open you should open your mindset...
Annnnnd now I have to find a new tuner because of you dicks lol. ; )
You make really good points about 1/2 of the tuning issue. If you scale the tune to bypass MAF limits, you have to scale a lot of auto trans tables. For a personal vehicle this may just be another interesting part of tuning, but I can imagine this being very time consuming on a professional level. BTW, I have done 2bar tuning with a fully enabled MAF, and I do prefer it if the build allows for using the MAF. Sometimes, however, this just isn't a practical solution.
Then take your money elsewhere! Not one time have I had a dyno tune be faster at the track then a logged and properly adjusted tune. Give the engine what it wants not what some dyno tuner says it needs. Whenever people stop listening to these retards with keyboards is when people might actually start going fast. People claim there is a shortage of tuners but really it's just a shortage of people that don't want to learn how an engine works.
Even a load bearing dyno isn’t going to apply the same types of loads and stresses and actual ¼ ½ etc pass will put on the engine. All dynos are just to get a rough tune, the real world tune always needs to be adjusted from the dyno tune if you want an optimal setup.
With this gentleman I data log while driving on the street and send him the scans.
He addresses the tune in two stages, first stage is idle and cruise, then WOT pulls.
Whether it takes two tunes or 10 he doesn't stop until I'm happy with how it runs.
I've been using him for years and other than the waiting between scans I couldn't be happier, car runs really hard and drives fantastic, even for having a slightly over sized cam.
Then take your money elsewhere! Not one time have I had a dyno tune be faster at the track then a logged and properly adjusted tune. Give the engine what it wants not what some dyno tuner says it needs. Whenever people stop listening to these retards with keyboards is when people might actually start going fast. People claim there is a shortage of tuners but really it's just a shortage of people that don't want to learn how an engine works.
I work 10-12 hours a day and have a very busy personal life (ha ha) so tuning my own car at this stage of my life just isn't feasible, doesn't mean I don't want to learn.
TECH Fanatic
Joined: Oct 2015
Posts: 1,280
Likes: 28
From: Pittsboro, IN
I disagree, I know lots of guys running turbo LS cars and all are passionate about the hobby and would love to be able to tune their own cars but there is a hefty investment up front, plus all the time spent figuring things out.
I work 10-12 hours a day and have a very busy personal life (ha ha) so tuning my own car at this stage of my life just isn't feasible, doesn't mean I don't want to learn.
I work 10-12 hours a day and have a very busy personal life (ha ha) so tuning my own car at this stage of my life just isn't feasible, doesn't mean I don't want to learn.