Best TB and MAF combo for a stock 302?

W

West Texas Z

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Apr 2, 2009

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Thornton, Colorado

Apr 25, 2012

#1

• Apr 25, 2012

• #1

Hi guys, I'm looking at installing my Tubular GT40 intake on my car soon. The only mods are exhaust and a cold air intake. (Its basically stock) I was wanting to upgrade the the Mass Air Flow Meter and Throttle body to get the most of my intake. What size combo do you guys recommend? p.s, I plan on using the stock injectors for now.

Thanks in advance!

 

stykthyn

I want to measure mine. It doesn't look that tall.

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#2

• Apr 25, 2012

• #2

65mm cobra or explorer TB and 95 gt maf.

 

W

West Texas Z

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Apr 25, 2012

#3

• Apr 25, 2012

• #3

Would a 70mm TB be too big?

 

stykthyn

I want to measure mine. It doesn't look that tall.

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#4

• Apr 25, 2012

• #4

No but its not going to help any more either.

 

W

West Texas Z

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#5

• Apr 25, 2012

• #5

Please note, switching throttle bodies necessitates setting the throttle position sensor.

Click to expand...

Thanks for the quick responses, I appreciate it. Could you explain what this quote means? I saw it with a seller selling his 62mm TB and I'm confused.

 

larrym1961

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Dec 18, 2010

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Apr 25, 2012

#6

• Apr 25, 2012

• #6

It would mean that you need to adjust your TPS voltage to around .98 Volts. Thats with key on and engine not running.

 

stykthyn

I want to measure mine. It doesn't look that tall.

15 Year Member

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Apr 25, 2012

#7

• Apr 25, 2012

• #7

you shouldnt have to adjust your tps. If it was in good working condition before it should work on your new TB. Larger tb's adjust for larger air ratios via the linkage. I run a 75mm TB on a gt40 intake with a stock TPS. No adjustment was necessary.

 

W

West Texas Z

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Apr 25, 2012

#8

• Apr 25, 2012

• #8

thanks for the info guys!

 

stang&2Birds

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Apr 26, 2012

#9

• Apr 26, 2012

• #9

larrym1961 said:

It would mean that you need to adjust your TPS voltage to around .98 Volts. Thats with key on and engine not running.

Click to expand...

ARGGG!!!!!!!!!
WTF are people STILL getting this BS RICER CR*P from?

Summary:
vristang and Joel5.0 take all of the fun out of my ricer mod rants. View attachment 150930
DAMN YOU vristang! View attachment 150931


From: Print Page - Setting the TPS

Bottom line....
Any tps setting between .6 to 1.1v is acceptable. (numbers vary slightly depending on who you ask, but if you aren't throwing a tps code, then you'reok)
There is no performance gain from adjusting the tps voltage between.99999v to 1.00000v

A voltage of 4.6 to 4.8v is not required to reach WOT...
WOT/OL is triggered when the TPS voltage is 2.7v above the base/idle voltage.


For some real tech on the TPS check these...
http://www.my5oh.com/forum/viewtopic.php?p=144#144 (insert my5.0.com here)
http://www.veryuseful.com/mustang/tech/engine/Mustang-TPS-FAQ.html

Here is a link to Joels Base Idle Reset Procedure...
http://sbftech.com/index.php/topic,1031.0.html

Here is a link to the GUFB...
http://www.fordfuelinjection.com/files/GUFB.pdf

 

stang&2Birds

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New England. :-) CT/MA

Apr 26, 2012

#10

• Apr 26, 2012

• #10

As to the OP and MAFs:

To use a 70mm 94/95 Mustang GT MAF on a Fox Mustang 5.0 (except a 93 Cobra), use an adapter:
Ford MAF Adapters - Air Filters - Kurtz Kustomz Motorsports, Inc. KKM

For all practical purposes, it's the same curve as the Fox GT curve. But, with "no/minimal" restriction up to ~350 RWHP, and with more accurate sensing.

To see the Fox MAF, LMAF (requires a chip), and 94/95 MAFs, see below:
http://www.veryuseful.com/mustang/tech/tmp/mafs-fox-LMAF-94.jpg

I've gone over the advantages and trade-offs of the different MAF designs many times before.

 

NIKwoaC

中國製造

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Apr 26, 2012

#11

• Apr 26, 2012

• #11

Basically you want the TB and MAF to be as big as possible, within reason. At WOT, you just want them out of the airflow's way. I've found that a 70mm TB will mate up to a GT40 style intake opening without much (if any) port matching. For MAF, I'm a fan of the ABACO units. Look at an 85mm or 97mm ABACO. You can get them calibrated for the 19lb injectors, and they come with tuning software so you can change your injectors in the future.