They charge $200 for a dyno/professional tune. They are in Northern Virginia.

 

This is what I meant when I said I think (slight chance) I know why your TQ is a little low at your MF thread (below 3700 till over 3700) and that it might not be the tune but I didn't want to say over there till I see your Wed results. I didn't want to deal with the opposition to this until your results were in. I think you might have lost a little low end TQ (TQ data) per your exhaust sys.


I really hope it’s just the tune and it could be.

 

No problem, any thoughts/information is appreciated. Keep in mind that my Magnaflow kit is a Y pipe kit, so there is a stock Y comming off the cats, then the magnflow Y going dual from there to the rear. We will just have to wait and see.

 

Wow I thought I read you had duals ok you Y into dual, Hmm then no way it shouldn't be that I would be little shocked then if it was that and surprised.

 

I have duals, but its not a true dual kit. That is something on the long list of things I am going to do.

 

It is very interesting you have these reults without the true dual setup.. The results are great.. My last dyno was 182RWHP and 217RWTQ..

I would say your numbers do look impressive for the auto.. You would definatley catch me in the last 1/8th for sure.. LOL!! That would be one heck of a race!

 

His results may lend itself to what I've been saying all along...going to a dual setup doesn't get you much performance gain... a good single exhaust is all you need performancewise... now style and sound is something else..

Now one thing that I'm really curious is how many of you guys that have dyno sheets that say "SAE Horsepower/Torque" on them... My first dyno runs were done at a car show on a portable dyno... When I showed it to Lidio he quickly pointed out the artificial TC lockup spike and also the fact the sheet didn't say "SAE" on it... He then explained the the dyno was not set to "SAE corrected" and that most likely my numbers were inflated... Sure enough, EVERY guy who had there car on the dyno was excited because there car was making more power than they expected... on a 90 degree day! So.. how many of you know that your dyno runs are SAE corrected?

Of course we can talk about dyno sheets all day... but it's all going to be just talk until the Big V6 Grudge Match! LOL!

 

I'd actually like to see this tested appropriately---with different exhaust configurations and dyno runs.

Do you have some good hard data on this scrming, or just what you've gleaned from forum posts/claims, etc.?

I mean, if going dual gets you even 5 hp, it might very well be worth it...I've seen guys on here install pullies for just 5 hp for about the same price as going dual exhust

 

Mainly from talking with people who know what they are talking about... Example: The MRT SEMA car is a V6 with twin turbos yet is still has a single exhaust. When I asked Scott Hoag about it, (sticky about Scott : http://forums.bradbarnett.net/index.php?showtopic=28022 ) he basicaly said "it's a V6... doesn't need duals" This went right along with what the other people were telling me... We know a good single exhaust will add about 10-12RWHP, but I don't have any proof about duals one way or the other... I would love for some one to offer hard data showing a 20RWHP gain by going to a dual setup...

of course you can get the 3 to 5 RWHP gain for $159 (+shiping) and 15 minutes of work by swapping out your alternator pulley... LOL!

 

Well I love the sound of the MAC ProChamber, so that looks like the route I'm going to take. MSP had to post that clip LOL.

I just don't want to lose any HP, I'm wondering if my Y pipe setup is actually helping me here by making sure there is enough back pressure for my 6 banger.

On wednesday I will talk to the guys at the shop. Chris and Larry really know thier stuff.

 

Well a stock V6 doesn't need a dual exhaust but what about a V6 with a power adder?

 

yeah, you would think there would come a point where you would get a big benefit... I just don't know where that is.... I think Scott's turbo is running about 7psi and it's still a single.. I just don't have the funds to invest in a good dual setup and find I get little or no performance gain... Although I heard a V6 at Lidio's shop the other day with dual Steeda mufflers on it... dang, it sounds nice... very tempting to try and get more sound out of my car... LOL

 

This is the question indeed, I mean, it can't be much of a gain. We see Excepcion13's car at 205 RWHP and Zodiac's car at 208RWHP, and both car's have a professional tune, CAI and only real difference is Zociac's exhaust.

So based off this, 3hp...perhaps 5hp at the most. So, the decision to go duals is definitely sound/looks. But......

...what kind of gains would we see with perhaps a new throttle body (once they are available) and 100HP shot of N20.

Thoughts everyone?

 

I am flip-flopping about going dual myself, now. SCRMING is making great gains with single exhaust. I don't mind springing the money for slight gains (even 5 RWHP), but I do not want to lose the gains I have already gotten. With a CAI and a tune I have added approximately 25-30 HP and 30-40 ft/lbs. Not spectacular, but I don't want to lose those gains just to sound better. Installing duals has been beaten to death in a lot of threads, but do we have concrete answers about performance gains or losses? From what I have read so far, the jury is still out...

 

To me, 25-30 HP gain is huge on a NA.

I think the real focus should be what gains do we get with a major power adder, where the full potential of a true dual exhaust can be leveraged out.

 

This is for a 2005 GT, and from Magnaflow so I am not sure how much to trust them:



Isn't a GT a stock H pipe, and this kit does not replace the H, so the gain would be from the tubing/muffs.

Thoughts?