Mafs

[garrett]

I am going to upgrade the electronics in my red Turbo T. I'm going to get the Motrons 60lb injectors, the Translator, Extender chip and a more modern Maf. My question is; should I get the 3.5 ls1 MAF or the 3 inch Impalla maf. Right now my maf pipe and couplers are stock size. Would they both work equally as well?

 

[sugarandopium]

+1
Good question.
Getting ready to do the same soon and wondering the same.

 

[garrett]

???

anyone?

 

[garrett]

bump

bump

 

[BRAD_PADGETT]

I would go with the 3 1/2 in MAF on an 87. I run the 3 inch impala MAF only because I have a Hot Air. My 2 cents. Good luck-Brad

 

[garrett]

hoses

So I guess I need to buy 3-3.5 hoses?

 

[turbojd]

3" LT1 maf here

 

[UNGN]

The 3" works great. New, I think you can buy a 3.5" for less, but couplers might make it a wash.

 

[sugarandopium]

So there's really no advantage to bigger intake/MAF pipes then?

 

[UNGN]

So there's really no advantage to bigger intake/MAF pipes then?

An LT1 MAF won't slow down a 10 second car vs. an LS1 sensor a noticeable amount and both outflow a stock MAF, unless the stocker has had the screens and venturi removed (and a regular chip won't work for this setup)

 

[garrett]

size

The stock maf measures 3.25 inches. I wonder if my Turbonetics couplers would stretch over the 3.5 maf?

 

[turbojd]

The stock maf should measure 3" because my 3" LT1 maf fits in the maf pipe and hoses the same.

 

[kingots2004]

The stock maf measures 3.25 inches. I wonder if my Turbonetics couplers would stretch over the 3.5 maf?

i changed to a 3.5 maf and still had my 3 inch pipe i just went to a plumbing store and bought the 4 inch coupler(the black plumbing coupler) then i slid my stock size couupler back on the pipe and then put the 4 inch on the stock size coupler to make up the difference. the 4 inch was a little tight if i remember right on the 3.5 maf . just take the maf with you and find the size that fits tight then youll have a cheap fix.hope this is clear enough lol

 

[garrett]

coupler

I measured the stock maf, with a caliper. It measures 3.25 OD. I know I can stretch my couplers to 3.4inches. Has anyone taken a caliber to the 3.5 LS1 maf and looked at the outer dimensions of it?
I will probably choose the 3 inch LT1 maf anyways, since the TA-49 inlet bell would be the restrictive link in the chain. I don't think there's any reason to go out and buy all new couplers and a 3.5 maf pipe, when the inlet bell is smaller?

 

[kingots2004]

does the ls1 read higher than the lt1? is the ls1 any more precise than the lt1 being that its new technology ? if you answered yes to any of those questions then go ls1 if not then rock on either way.jmho