Maxing out LS7 MAF, is there a frequency shifter?
Do you have a pic of it installed. It's just a huge tube to fit under the hood of an Fbody with factory everything lol.
So I stopped by the HP Tuners tent at LS Fest. I was talking with whoever the guy was there. It was a conversation about tuning SD vs MAF. Anyway, he said something to the effect of they have a patch or something to change the maximum value on a MAF? I don't know anything about it, and have certainly never done it, but it may be worth a question to HP Tuners tech support. I would think one of the tuners that have responded on here would know about it though. Perhaps it's new?
TECH Addict
Joined: Oct 2016
Posts: 2,513
Likes: 480
From: PDX-OR-USA
Might Take a look at a Porsche 911 MAF(~ 2003-2005) , it's a blade style but should be designed for much higher average velocity.
Its similar to the late model GM one, it just has a different/German plug..
Its similar to the late model GM one, it just has a different/German plug..
So I stopped by the HP Tuners tent at LS Fest. I was talking with whoever the guy was there. It was a conversation about tuning SD vs MAF. Anyway, he said something to the effect of they have a patch or something to change the maximum value on a MAF? I don't know anything about it, and have certainly never done it, but it may be worth a question to HP Tuners tech support. I would think one of the tuners that have responded on here would know about it though. Perhaps it's new?
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 TECH Addict
Joined: Oct 2016
Posts: 2,513
Likes: 480
From: PDX-OR-USA
I happened to notice it once when I had my search on line borked and got BOTH a late model GM blade styleand the 911 one a the same time. "suggested" LOL.. I pulled the one on the 911 and its in about a 3.5 inch tube.
Engine turns 7500 and its a 3.8 so the velocity range in that intake tube must be fairly fast ..
Its also not terribly expensive I Rock had them... Delphi for 85 bucks, Cardone for 35..
For 35 might be worth a test, upgrade to the Delphi or the Bosche for 147 if it works?
Its a 5 pin sensor with a thermistor for MAT/IAT
I happened to notice it once when I had my search on line borked and got BOTH a late model GM blade styleand the 911 one a the same time. "suggested" LOL.. I pulled the one on the 911 and its in about a 3.5 inch tube.
Engine turns 7500 and its a 3.8 so the velocity range in that intake tube must be fairly fast ..
Its also not terribly expensive I Rock had them... Delphi for 85 bucks, Cardone for 35..
For 35 might be worth a test, upgrade to the Delphi or the Bosche for 147 if it works?
Its a 5 pin sensor with a thermistor for MAT/IAT
Why would you not want to go to a 411 pcm in a boosted 98? Why so anti SD? A 98 pcm and boost is about the worst combination you can have IMO. With factory pcm having no safety's I would not run a maf in a high hp boosted setup. Every MAF I have seen fail has made the car go lean, the last thing I want under alot of boost. If dead set on maf then the 411 swap would be well worth the 1/2 a day it would take to re-pin the harness to swap it over IMO.
The 411 or 4896 are quite capable.
The 98 is a saddle. Valuable if you sell, very few good ones around.
my car runs great SD 3 bar. Cam is mild, easy to tune runs 8’s
Buddies truck I tune runs easy 8.60’s all day. Also a small cam.
The 98 is a saddle. Valuable if you sell, very few good ones around.
my car runs great SD 3 bar. Cam is mild, easy to tune runs 8’s
Buddies truck I tune runs easy 8.60’s all day. Also a small cam.
Why would you not want to go to a 411 pcm in a boosted 98? Why so anti SD? A 98 pcm and boost is about the worst combination you can have IMO. With factory pcm having no safety's I would not run a maf in a high hp boosted setup. Every MAF I have seen fail has made the car go lean, the last thing I want under alot of boost. If dead set on maf then the 411 swap would be well worth the 1/2 a day it would take to re-pin the harness to swap it over IMO.
TECH Addict
Joined: Dec 2004
Posts: 2,177
Likes: 627
From: Florida
im balancing 3 pretty in-depth projects at the moment (and a 50-60hour/wk job), i almost finished the billet impeller, just need to open up the seat for the seal i goofed the first time and made it a few thou too small. my bug showed up with a blown out clutch slave so i had to replace that before getting back on the dyno. now all my ecotec parts are showing up and my green wagon is almost running again. i got the haltech booted up last weekend to check out the wiring, now im recovering all the heat shrink and need to do a few other minor things before getting a driveshaft on order. so the bug is mobile under its own power and once the green wagon is in the same condition ill be back hard on the dyno. hows that for a long answer to a short question.