View Poll Results: What Tune System

Maf 1Bar

8.00%

Maf/SD Hybrid 2Bar

8.00%

2Bar SD

24.00%

3Bar SD

60.00%

Voters: 25. You may not vote on this poll

Big Boost, What Tune?

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Oct 13, 2009 | 08:04 PM

Slow Z06

Thread Starter

Le Mans Master

Joined: Oct 2006

Posts: 6,080

Likes: 0

From: Houston TX

Big Boost, What Tune?

What are you big boost guys ( 14psi + )using for your tunes? With or without meth?

maf
2bar SD
3bar SD

Oct 13, 2009 | 08:28 PM

0Jeff @ TPE

Former Vendor

Joined: Feb 2004

Posts: 10,876

Likes: 8

From: Las Vegas NV

St. Jude Donor '06 & '12

Your right on the edge on a 2 bar. Just do a 3 bar closed loop SD tune.

Dont waste your time on a MAF tune. Your flyin blind with that kind of boost.

Oct 13, 2009 | 08:35 PM

user_name

Melting Slicks

Joined: Feb 2006

Posts: 2,163

Likes: 5

From: Houston

Quote:

Originally Posted by Jeff @ TPE

Your right on the edge on a 2 bar. Just do a 3 bar closed loop SD tune.

Dont waste your time on a MAF tune. Your flyin blind with that kind of boost.

Oct 14, 2009 | 08:55 PM

Vince99FRC

Safety Car

Joined: Jul 2004

Posts: 3,706

Likes: 2

From: Valrico Florida

3 bar here....

Oct 14, 2009 | 09:14 PM

peter pan

Life Time NCM #2196

Joined: Sep 2004

Posts: 82,596

Likes: 1,712

From: Converse TX

Just convereted to 3 bar and Vette runs better, now I just need to solve the fuel issue that has popped up with more power

Oct 14, 2009 | 09:15 PM

Slow Z06

Thread Starter

Le Mans Master

Joined: Oct 2006

Posts: 6,080

Likes: 0

From: Houston TX

3bar it shall be then. Does anyone know off hand the part number to the 3bar sensor i would need?

Oct 15, 2009 | 02:02 AM

dsmlights

Burning Brakes

Joined: Nov 2007

Posts: 882

Likes: 2

From: Miami Florida

is there not a 2.5 bar map out there... the only thing I don't like about the 3bar is that it does not fit directly into the manifold.

Oct 15, 2009 | 11:21 AM

Brandon619

Le Mans Master

Joined: Dec 2003

Posts: 5,047

Likes: 252

From: San Diego

I've been running a 2 bar SD for 2 years now and love every minute of driving

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Oct 15, 2009 | 01:43 PM

Z06wanted

Melting Slicks

Joined: Nov 2007

Posts: 2,144

Likes: 2

From: Conway AR

3 bar here. If your running a 2bar and go past 14psi then it's no different than running a maf IMO.

Oct 15, 2009 | 06:25 PM

#10

Corvette-Chris

Le Mans Master

Joined: Jul 2005

Posts: 7,121

Likes: 3

From: Shreveport/Bossier Louisiana

St. Jude Donor '08

Im running a 2bar MAF but my peak power doesnt reach over 14psi.

Oct 16, 2009 | 12:28 PM

#11

Jason Blue Boost

Drifting

Joined: Feb 2002

Posts: 1,630

Likes: 125

From: Park Ridge Illinois

2022 C5 of the Year Finalist - Modified

2021 C5 of the Year Finalist - Modified

2 bar SD with 13 to 14 lbs. Run a mix of 100 octane with high setting only. Any higher than that and I'll have to get a newer pcm.

Oct 16, 2009 | 12:44 PM

#12

madmatt9471

Team Owner

Joined: May 2006

Posts: 21,473

Likes: 356

From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----

Heck I don't have a choice on my Vette I had to do a 2 BAR SD tune w/No MAF!

But if you are able to do a 3 BAR then I'd have the tuner tune it that way, that will enable you to have a "HUGE" table of tunin g peramiters for the Vette

Thanks,Matt

Oct 16, 2009 | 12:51 PM

#13

mulalleybs

Burning Brakes

Joined: Jan 2009

Posts: 1,204

Likes: 14

From: Savannah Ga

I have a MAF tune with 11 lbs of boost. Are there any issues with this? I heard SD tunes are bad for places with large temp changes. I don't really know anything about it though to be honest.

Oct 19, 2009 | 09:01 PM

#14

z0quick

Racer

Joined: May 2005

Posts: 403

Likes: 1

From: Fort Lauderdale

We are running just under 800rwhp on our shop sts twin turbo c5 on a 2bar map (SD) with in dash eboost2 controller. Since we've tuned each cell, we can dial in the eboost to whatever level we'd like and there are 3-5 presets you can define. We currently have 3 presets on 7, 10, and 14psi. F the maf! The car is cam'd and we've got it idling like a dream.