MAF sensors, tuning, etc? questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

'68 Newtricks · 05-17-2014, 10:33 PM

I've had this question bouncing in my head for a while now. I would really like to get a local to drive/dyno tune my truck after the engine swap. But I need more research since I don't have anyone in mind. I would like to know where some of you are SENDing your harnesses and ECMs for programing. I will not be messing with the harness, I'd rather leave that up to the tuner.

So please, a list of folks that have been used. If you have a duplicate response, at least accompany it with a review. That would be awesome. If anyone knows tuners in the So.Cal area, that would be awesome too!!

For example:
BD Turnkey = they can supply me with a ZO6 cam and springs, rework the harness, and tune. Are they any good, I dunno.

Also, what is everyone's take on keeping the MAF? I see a lot of pictures with them removed and some without. I'm going to use Griffin radiator with both fittings on the passenger side. I'm also going to keep the mechanical fan. (I just don't like to hear them, nor trust electric fans. Even though all front wheel drive cars have them) So.... if the MAF gets in the way, it might be removed and tuned for that. Does anyone have anything negative to say about driving MAF-less?

Thank you. The truck will be a daily driver. Will run a cam, TBSS manifolds, and dual exhaust. That will be the extent of modifications it will see. I need mpg badly. I don't mean to sound like I'm giving homework either LOL, just keeping the question simple.

Blackpony · 05-17-2014, 10:43 PM

Definately keep the maf. It gives the computer the ability to compensate for changing conditions whick will result in better driveability and fuel economy.

Super73 · 05-22-2014, 10:50 AM

Quote:

Originally Posted by Blackpony

Definately keep the maf. It gives the computer the ability to compensate for changing conditions whick will result in better driveability and fuel economy.

With The MAF disconnected the O2 sensors adjust fuel trim cells which keeps things at stoich. Plus being tuned well clean up any issues seen in the ve table. O2's will really be able to compensate from there.

**Hart_Rod** · 05-18-2014, 09:54 AM

Most people don't remove the MAF unless they are having space problems.

akdg87 · 05-18-2014, 12:55 PM

i run without a MAF on my dd, and it runs great. But it will cost you more as you will need to upgrade to the Speed Density enhanced operating system for the PCM. If you are going through the trouble of swapping a cam there are much better options than using the z06 cam. You can get some hefty gains from aftermarket ls cams.

I prefer to buy a new standalone harness, not just a thinned out one. LS performance wiring has a done a few for me (they can be found on facebook)

'68 Newtricks · 05-22-2014, 02:09 AM

Is there another thread with all the popular tuner companies listed? Or anyone near Los Angeles for that mater?

I really only landed on the zo6 cam because it's everywhere and there are tuners who already have programs ready to run that cam. I'm also trying to keep this truck as DD friendly (reliability, fun, MPG) as possible. So I wouldn't mind doing a cam swap, but a very mild bump it performance. It has to equal or better my v6 S10 in MPG. Anything less will hurt very much. This truck will also be my ONLY vehicle, aside from my off road Blazer.

Wasted Income · 05-22-2014, 08:45 AM

Here's another vote for ditching the MAF....but only if you're tuning it yourself, which it appears you're not.

Speed density can run as good, or better (booooooost) than a MAF setup...but it takes time to get it dialed in...that most pro tuners don't want to invest for a $400-500 tune.

Super73 · 05-22-2014, 12:00 PM

Where in ca are you located?

'68 Newtricks · 05-22-2014, 01:21 PM

Los Angeles/ Pasadena

BR3W CITY · 05-22-2014, 01:42 PM

I've been running maf for a while no problem, but will be switching to SD once we start upping the power mods more.

I will say that I would NEVER email tune for SD. At least with MAF, you can get a bit of "help" on the tune if its ballparked. A bad-guess SD tune will run like dogsh!t

'68 Newtricks · 05-23-2014, 11:14 AM

Hmm good point about the MAF ballpark

**truckdude239** · 05-23-2014, 12:30 PM

i kept the maf on mine and did a mail order tune soon as i get everything done i will be gettign a dyno/streettune

Custom 68 · 05-23-2014, 02:16 PM

one more thought is the MAF placement. Ideally it needs to be in a straight run of tubing. If you have bends it seems to "mess" with the readings.
I swapped to SD tune and moved my IAT into the piping when I went turbo. Might have been able to get away with the MAF but with the 2 bar SD I can tune into boost and works very well. I did keep my front O2 sensors and still have the computer make adjustments based off those during "normal" driving.

all that said if you have a good straight piping run and don't have FI then the MAF works great.

Super73 · 05-23-2014, 04:44 PM

I believe first c10 ran in to problems with a stock motor / tune and maf. His intake tube was different than stock but maf connected fuel trims were all over the place. He had been driving around with the maf pin disconnected and fuel trims are much better. I will be looking more at it this weekend for him.

An uncalibrated maf can cause it just as many headaches as a bad ad tune.

**First c10** · 05-23-2014, 06:27 PM

If you can do the swap you can do the harness....the Tune well that is something all together different. Also the 6L80E adds even more to the mix. Glad Super73 is close.
I just unpined the MAF wire and the truck purded like a kitten!

'68 newtricks, great idea to find someone local to do the tuning now than after you have the truck down....
Good luck...... these guys are great as a resource
see ya saturday Super73!!!

bigbluthng · 05-24-2014, 01:16 PM

http://rpm-motors-inc.com/ located In canyon country. about 500ish for a dyno tune. real busy shop does a lot of vettes there. super cool to deal with.

'68 Newtricks · 05-27-2014, 01:42 AM

Quote:

Originally Posted by bigbluthng

http://rpm-motors-inc.com/ located In canyon country. about 500ish for a dyno tune. real busy shop does a lot of vettes there. super cool to deal with.

Bookmarked for future business!! They are quite close, close enough so that I may just take a trip over there shortly and look around. Thanks

'68 Newtricks · 06-07-2014, 07:04 PM

Yep, I'm going with RPM for the tuning and keeping my MAF. For simplicity sake, and using the funds elsewhere, I'm swapping the oil pan and throwing the motor in. After I get some time on it and dial everything in, then I'll start massing with performance.

Thanks guys
Maybe I'll finally get around to making a build thread, though it won't be very exciting.

05-17-2014, 10:33 PM	#1
'68 Newtricks Registered User Join Date: Feb 2014 Location: Los Angeles area :( Posts: 499	MAF sensors, tuning, etc? questions I've had this question bouncing in my head for a while now. I would really like to get a local to drive/dyno tune my truck after the engine swap. But I need more research since I don't have anyone in mind. I would like to know where some of you are SENDing your harnesses and ECMs for programing. I will not be messing with the harness, I'd rather leave that up to the tuner. So please, a list of folks that have been used. If you have a duplicate response, at least accompany it with a review. That would be awesome. If anyone knows tuners in the So.Cal area, that would be awesome too!! For example: BD Turnkey = they can supply me with a ZO6 cam and springs, rework the harness, and tune. Are they any good, I dunno. Also, what is everyone's take on keeping the MAF? I see a lot of pictures with them removed and some without. I'm going to use Griffin radiator with both fittings on the passenger side. I'm also going to keep the mechanical fan. (I just don't like to hear them, nor trust electric fans. Even though all front wheel drive cars have them) So.... if the MAF gets in the way, it might be removed and tuned for that. Does anyone have anything negative to say about driving MAF-less? Thank you. The truck will be a daily driver. Will run a cam, TBSS manifolds, and dual exhaust. That will be the extent of modifications it will see. I need mpg badly. I don't mean to sound like I'm giving homework either LOL, just keeping the question simple.

05-17-2014, 10:43 PM	#2
Blackpony Registered User Join Date: Feb 2013 Location: Aubrey, TX Posts: 308	Re: MAF sensors, tuning, etc? questions Definately keep the maf. It gives the computer the ability to compensate for changing conditions whick will result in better driveability and fuel economy.

05-18-2014, 09:54 AM	#4
Hart_Rod ************* Join Date: Apr 2005 Location: Pensacola, FL Posts: 17,858	Re: MAF sensors, tuning, etc? questions Most people don't remove the MAF unless they are having space problems. __________________ Rob - https://www.instagram.com/hart_rod_c10 As Iron Sharpens Iron, So One Man Sharpens Another. Proverbs 27:17 FOR SALE: DBW pedal bracket - http://67-72chevytrucks.com/vboard/s...d.php?t=651123 FOR SALE: Hood Brackets http://67-72chevytrucks.com/vboard/s...d.php?t=679945 1987 Silverado SWB - 34.5K original miles http://67-72chevytrucks.com/vboard/s...d.php?t=801834 1969 SuperBurb - http://67-72chevytrucks.com/vboard/s...d.php?t=200387 1968 Farm truck - http://67-72chevytrucks.com/vboard/s...d.php?t=358692 1968 SWB - http://67-72chevytrucks.com/vboard/s...d.php?t=551258 1948 Chevy - http://67-72chevytrucks.com/vboard/s...=122164&page=3

05-18-2014, 12:55 PM	#5
akdg87 Registered User Join Date: Sep 2013 Location: fairbanks, ak Posts: 339	Re: MAF sensors, tuning, etc? questions i run without a MAF on my dd, and it runs great. But it will cost you more as you will need to upgrade to the Speed Density enhanced operating system for the PCM. If you are going through the trouble of swapping a cam there are much better options than using the z06 cam. You can get some hefty gains from aftermarket ls cams. I prefer to buy a new standalone harness, not just a thinned out one. LS performance wiring has a done a few for me (they can be found on facebook) __________________ build thread 1955 cameo turbo lsx 1993 K1500 Blazer 5.3/4L80e 2009 CTSV Sedan

05-22-2014, 02:09 AM	#6
'68 Newtricks Registered User Join Date: Feb 2014 Location: Los Angeles area :( Posts: 499	Re: MAF sensors, tuning, etc? questions Is there another thread with all the popular tuner companies listed? Or anyone near Los Angeles for that mater? I really only landed on the zo6 cam because it's everywhere and there are tuners who already have programs ready to run that cam. I'm also trying to keep this truck as DD friendly (reliability, fun, MPG) as possible. So I wouldn't mind doing a cam swap, but a very mild bump it performance. It has to equal or better my v6 S10 in MPG. Anything less will hurt very much. This truck will also be my ONLY vehicle, aside from my off road Blazer.

05-22-2014, 08:45 AM	#7
Wasted Income Boosted Member Join Date: May 2002 Location: Mackinaw, IL Posts: 2,200	Re: MAF sensors, tuning, etc? questions Here's another vote for ditching the MAF....but only if you're tuning it yourself, which it appears you're not. Speed density can run as good, or better (booooooost) than a MAF setup...but it takes time to get it dialed in...that most pro tuners don't want to invest for a $400-500 tune. __________________ 1972 2wd K/5 Blazer Turbocharged 370 LSx - 941 rwhp / 1093 rwtq 1969 Chevy K-10 L33 5.3 / 4L80E / NP241 / 4" lift 1964 Buick Skylark Twin TURBO 383 LS pro-touring project 2014 VW Passat TDI - Daily Driver Turbo diesel 2015 Sierra Denali HD Duramax Turbo diesel 2023 Ford Explorer ST - Twin Turbskis 2023 Ford F150 RCSB - Whipple Supercharged 2017 Polaris RZR Turbo 2014 Nor-Tech Center Console - Twin Supercharged Outboards *TURBO ALL THE THINGS!!*

05-22-2014, 12:00 PM	#8
Super73 Registered User Join Date: Nov 2007 Location: Bay Area, Ca Posts: 2,841	Re: MAF sensors, tuning, etc? questions Where in ca are you located? __________________ ------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49

05-22-2014, 01:21 PM	#9
'68 Newtricks Registered User Join Date: Feb 2014 Location: Los Angeles area :( Posts: 499	Re: MAF sensors, tuning, etc? questions Los Angeles/ Pasadena

05-22-2014, 01:42 PM	#10
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: MAF sensors, tuning, etc? questions I've been running maf for a while no problem, but will be switching to SD once we start upping the power mods more. I will say that I would NEVER email tune for SD. At least with MAF, you can get a bit of "help" on the tune if its ballparked. A bad-guess SD tune will run like dogsh!t __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

05-23-2014, 11:14 AM	#11
'68 Newtricks Registered User Join Date: Feb 2014 Location: Los Angeles area :( Posts: 499	Re: MAF sensors, tuning, etc? questions Hmm good point about the MAF ballpark

05-23-2014, 12:30 PM	#12
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,238	Re: MAF sensors, tuning, etc? questions i kept the maf on mine and did a mail order tune soon as i get everything done i will be gettign a dyno/streettune __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

05-23-2014, 02:16 PM	#13
Custom 68 Registered User Join Date: Nov 2001 Location: Springfield, MO Posts: 2,939	Re: MAF sensors, tuning, etc? questions one more thought is the MAF placement. Ideally it needs to be in a straight run of tubing. If you have bends it seems to "mess" with the readings. I swapped to SD tune and moved my IAT into the piping when I went turbo. Might have been able to get away with the MAF but with the 2 bar SD I can tune into boost and works very well. I did keep my front O2 sensors and still have the computer make adjustments based off those during "normal" driving. all that said if you have a good straight piping run and don't have FI then the MAF works great. __________________ Dave 1968 Custom Chevy with turbo charged 5.3 gen III 4l80e swap 1967-71 GMC 3/4 ton long step 4x4 (not sure what year exactly?) "A good friend will bail you out of jail...but a true friend will be sitting next to you saying "that was frekin awesome". "If it doesn't fit force it...If it breaks then it needed to be replaced anyway!"

05-23-2014, 04:44 PM	#14
Super73 Registered User Join Date: Nov 2007 Location: Bay Area, Ca Posts: 2,841	Re: MAF sensors, tuning, etc? questions I believe first c10 ran in to problems with a stock motor / tune and maf. His intake tube was different than stock but maf connected fuel trims were all over the place. He had been driving around with the maf pin disconnected and fuel trims are much better. I will be looking more at it this weekend for him. An uncalibrated maf can cause it just as many headaches as a bad ad tune. __________________ ------Motor---------------Bottle 60'---1.53---------------1.41 1/8---6.58 @ 105.92----5.87 @ 118.41 1/4---10.38 @ 126.97----9.24 @ 142.49

05-23-2014, 06:27 PM	#15
First c10 Registered User Join Date: Dec 2012 Location: Los Banos CA Posts: 2,705	Re: MAF sensors, tuning, etc? questions If you can do the swap you can do the harness....the Tune well that is something all together different. Also the 6L80E adds even more to the mix. Glad Super73 is close. I just unpined the MAF wire and the truck purded like a kitten! '68 newtricks, great idea to find someone local to do the tuning now than after you have the truck down.... Good luck...... these guys are great as a resource see ya saturday Super73!!! __________________ 1956 Chevy Bel Air 2 door 1956 Chevy 210 4 Door 1970 K20 LWB project the Hulk build w/Supercharged 4.8L-ly2/4L60E HULK BUILD 1970 C10 Yellow/White Deluxe LWB w/ 5.3L-LC9/6L80E 1968 K10 LWB Dark green my son calls it "THE HULK Jr"HULK JR SOLD GO GO!!!

05-24-2014, 01:16 PM	#16
bigbluthng Registered User Join Date: Aug 2003 Location: canyon country, ca, USA Posts: 336	Re: MAF sensors, tuning, etc? questions http://rpm-motors-inc.com/ located In canyon country. about 500ish for a dyno tune. real busy shop does a lot of vettes there. super cool to deal with. __________________



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06-07-2014, 07:04 PM	#18
'68 Newtricks Registered User Join Date: Feb 2014 Location: Los Angeles area :( Posts: 499	Re: MAF sensors, tuning, etc? questions Yep, I'm going with RPM for the tuning and keeping my MAF. For simplicity sake, and using the funds elsewhere, I'm swapping the oil pan and throwing the motor in. After I get some time on it and dial everything in, then I'll start massing with performance. Thanks guys Maybe I'll finally get around to making a build thread, though it won't be very exciting. __________________ '68 C10 SWB '85 K30 Blazer

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