mass air conversion?

flavorman · 01-13-2004, 01:05 PM

i am mulling the idea of upgrading to gt40 heads and intake. do i need to convert to mass air? i have an 88' 5.0

Dark_5.0 · 01-13-2004, 03:05 PM

As long as you stay with the stock cam you wont have any problems.

Get an adjustable fuel pressure regulator and up the fuel a little bit if it starts to surge.

mustangman4 · 01-14-2004, 01:22 PM

No matter what you do mass air will always give you better driveability. Better mileage and starting and running. If you have that option go ahead and do so. Also down the line chips and other things like PMS to adjust fuel and timing are all based on the mass air signal.

Brad

jonnyk · 01-14-2004, 02:14 PM

Quote:

Originally posted by mustangman4
No matter what you do mass air will always give you better driveability. Better mileage and starting and running. If you have that option go ahead and do so. Also down the line chips and other things like PMS to adjust fuel and timing are all based on the mass air signal.

Brad

...And even further down the line, real DFI setups don't use mass air again.
A properly tuned (for the combination) speed density setup is better than a mass air (no restrictive meter in front of the engine).

I would stick with what you have until you swap cams.

01-13-2004, 01:05 PM	#1
flavorman Registered Member Join Date: Dec 2003 Location: Indiana Posts: 6	mass air conversion? i am mulling the idea of upgrading to gt40 heads and intake. do i need to convert to mass air? i have an 88' 5.0

01-13-2004, 03:05 PM	#2
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	As long as you stay with the stock cam you wont have any problems. Get an adjustable fuel pressure regulator and up the fuel a little bit if it starts to surge. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

01-14-2004, 01:22 PM	#3
mustangman4 Registered Member Join Date: Feb 2003 Location: Oshkosh WI Posts: 69	No matter what you do mass air will always give you better driveability. Better mileage and starting and running. If you have that option go ahead and do so. Also down the line chips and other things like PMS to adjust fuel and timing are all based on the mass air signal. Brad __________________ 93 GT 306 DSS, O-Ringed, AFR 185's, Pro Products Intakes, 55lb low imp inj, 80mm Pro-M meter, 2004 PMS, AFM Power Pipe, Kirban Reg, Vortech S-Trim 14lbs. No times yet. Trying to tune.

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