North American Turbocoupe Organization



What is a VAM?
stangman65 Offline
Member
#1
I keep reading about upgrading to a bigger VAM? Well what is it? I'm a 5.0 guy at heart and I'm new to these 2.3's, from reading I'd say the VAM is the same as a MAF on a 5.0? Am I right? Also, I already have brown top 35#/hr injectors so I should already have the bigger MAF/VAM right? Thanks
Dark Metallic Blue 88TC
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Grant Offline
Member
#2
Yes you're right man. Our VAM is essentially the same thing as a MAF for a 5.0. The difference is in how it works. Instead of an open "pipe" with an airflow sensor in the middle (MAF), it's a potentiometer with a "door" inside that measures airflow based on how far open it is. As for which you have, it depends what car it is. Let me know what I can help you with, and search this board and definitely the turboford.org board for all you could possibly want to know about this and many other subjects! Later

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83 TC : full 3" exhaust, 17" 93 cobra wheels, many mods awaiting install once the engine's back in [Image: smile.gif]

[This message has been edited by Grant (edited 07-19-2002).]
83 TC : full 3" exhaust, 17" 93 cobra wheels, many mods awaiting install once the engine's back in Smile
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Pete D Offline
Administrator
#3
VAM = Vane Air Meter. It serves the same purpose as a MAF generally. What year is your car? The only cars with the big VAM are the 87-88 TCs and the 85.5-86 SVOs. Some 85s and all 86 TC got the bigger brown top injectors, but the small VAM

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NATO Member. it's not a vice, it's an obsession
"The nice thing about each new day is nobody ever used it before" Barnaby Jones
88 TC X 2, 86 SVO, mods list at
http://www.turbotbird.com/showroom/pd_88tc.htm
Pete Dunham


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Grant Offline
Member
#4
Pete, did any Merks come with the big one? I was thinking there ws one more source for them, but who knows... at any rate the cars Pete said definitely had them. Merks may have just had 35# injectors and a small VAM. Later guys.

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83 TC : full 3" exhaust, 17" 93 cobra wheels, many mods awaiting install once the engine's back in Smile
83 TC : full 3" exhaust, 17" 93 cobra wheels, many mods awaiting install once the engine's back in Smile
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SteveX82 Offline
Posting Freak
#5
Quote:Originally posted by Grant:
Pete, did any Merks come with the big one? I was thinking there ws one more source for them, but who knows... at any rate the cars Pete said definitely had them. Merks may have just had 35# injectors and a small VAM. Later guys.



I'm not Pete (obviously), but my friend's 87 xr4ti had brown tops but only the small VAM. Unless the post-87 Merkur's came with larger VAMS (they stopped making them in 89 anywyas, didn't they?), then you hit the nail right on the head with your prediction.
Estoril blue 1987 TC 5spd, 148k mi, a237, Bailey BOV, spec stg3 clutch, spearco FMIC, 50 trim t3/t4, 3" exhaust, Bamafuel, LM1, 55pph
Best 1/4 mile: 12.31 @ 110mph on 25psi
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Grant Offline
Member
#6
That's what I was afraid of. Just not enough for all the cars to have em eh? I don't have a clue when they stopped making the merks either. It's sad to say, but I can only recall 1 or 2 that I've caught a glimpse of in real life [Image: frown.gif] Sweet cars, and I'd love to have one. Maybe one day. Later guys

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83 TC : full 3" exhaust, 17" 93 cobra wheels, many mods awaiting install once the engine's back in Smile
83 TC : full 3" exhaust, 17" 93 cobra wheels, many mods awaiting install once the engine's back in Smile
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Pete D Offline
Administrator
#7
Grant, hehehe, that info I posted above came from a Merkur source.

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NATO Member. it's not a vice, it's an obsession
"The nice thing about each new day is nobody ever used it before" Barnaby Jones
88 TC X 2, 86 SVO, mods list at
http://www.turbotbird.com/showroom/pd_88tc.htm
Pete Dunham


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RiglerTKE Offline
Member
#8
This site has some info in the xr4ti. You might find what you are looking for there.
http://www.angelfire.com/wa3/fastest4d/
Todd Rigler
87 TC Stock except for brake swap.
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