Granatelli MAF & LT4

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Apr 18, 2002 | 06:25 PM

sherpabob

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From: Centennial Colorado

Granatelli MAF & LT4

Will the Granatelli MAF get me any increase in HP on a LT4 and if it will who's got the best price? What about a larger throttle body? :jester

[Modified by sherpabob, 6:32 PM 4/18/2002]

Apr 19, 2002 | 12:49 AM

vader86

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From: Athens AL

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Re: Granatelli MAF & LT4 (sherpabob)

a larger TB wont help until you port some things open(heads,intake), the Granatelli had a good price (i thought) in a ZIP catalog i saw. But i have no experience with them.

Apr 19, 2002 | 09:47 AM

GS470

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From: Ham Lake, MN

Re: Granatelli MAF & LT4 (sherpabob)

I'm NOT speaking from experience, but I've heard the Granatelli MAF is complete waste of $$. Don't believe the claims.

I've been told a 52mm TB probably won't do much until you start making mods like a cam, heads, etc... I'm going to put a 52mm TB on mine this summer, but I'm not expecting big gains.

[Modified by GS470, 7:47 AM 4/19/2002]

[Modified by GS470, 7:49 AM 4/19/2002]

Apr 19, 2002 | 01:06 PM

silver & red CE

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From: NW Chicago Suburbs

Re: Granatelli MAF & LT4 (sherpabob)

IMHO, save your money and do gears, I did and I love it. 4.10 gears have to be the best thing I did to my Vette. I should have done it before the cat back.

Eric

Apr 20, 2002 | 12:52 PM

khornet

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From: Phx/but its a dry blast furnace kinda heat AZ

Re: Granatelli MAF & LT4 (sherpabob)

If you read some of the experiences in the Tech Tips section. Some of the guys are claiming actual dyno proven HP increases. Take a look on eBay, you'll find them for about $270

Apr 21, 2002 | 11:18 AM

MVR 155

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From: Bartlett, IL

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Re: Granatelli MAF & LT4 (sherpabob)

There is a new LS-6 Mass Air meter that is calibrated for the LT-1/LT-4 cars availible, I believe that Granitelli makes this. I have a friend in the area that owns a shop called Speed Inc. they have a chassis dyno and the smallest gain they have seen with one of the LS-6 meters is 8rwhp on a close to stock bolt on car and as much as 14rwhp on a 396 stroker motor car. I believe these sell for under $175 (Im not positive though) give them a call at 847 891-0767 and ask for Tom or Larry, they can give you all the info you need.

Good Luck
Mike

Apr 21, 2002 | 01:20 PM

nickd

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From: Warrenville IL

Re: Granatelli MAF & LT4 (MVR 155)

I picked up one of these yesterday from Larry @ Speed Inc. Going to test it at the track next Sun.
from what I understand they are the only ones who carry this MAF right now.
Great guys to do business with.

[Modified by nickd, 8:49 AM 4/22/2002]

Apr 22, 2002 | 10:28 PM

No Go

Melting Slicks

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From: Tampa Florida

Re: Granatelli MAF & LT4 (nickd)

Quite interested in your results.

My last dyno run we hooked up to a vacuum source on the intake and measured 1.5 inches at 6400 rpm on my stock LT4 intake tract except K+N and cut lid. Dyno operator said that on race motors they like to see .5 or less but 1.5 is certainly acceptable-but if a MAF would help with no negatives then...

Thanks