North American Turbocoupe Organization



E6 or not?
b_greve Offline
Junior Member
#1
Hi all, It's been a while since I've been on here; the TC's actually been trouble free for a few months [Image: smile.gif] (knock on wood). Anyways, I found a little extra cash and would like to add a little performace to my engine. Just wondering If I have the E6 on my car. Most of the things I've heard are that the E6 was just on the 87-88's but I've also read a couple of posts that it was on some late 86's. How do I tell which is on my car?

Thanks, Brad

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-Brad Greve - Stock 86 five speed TC other than a K&N,
-Brad Greve - Stock 86 five speed TC other than a K&N in the fender
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jeffg Offline
Senior Member
#2
should have a cast number marked on it either e-3 with a bunch of numbers or e-6
86TC,85XR7,99 Mountaineer. Need for Speed
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Pete D2 Offline
Member
#3
The part number will be on the log part of the manifold near #1 runner (front). It should start with "E6" for the E6 or"E3" for the E3

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Turbo
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b_greve Offline
Junior Member
#4
It is an E6. I also Know that the car has the small VAM. How much Differance would It make if I installed a Big VAM from an 87 or 88? Would I need to change the computer or anything else if I did this.

Thanks, Brad

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-Brad Greve - Stock 86 five speed TC other than a K&N,
-Brad Greve - Stock 86 five speed TC other than a K&N in the fender
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Pete D2 Offline
Member
#5
Yes you would need to change the computer if you go with a big VAM.
Turbo
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POWERED BY PSI Offline
Senior Member
#6
good time to ask this question...what IF you dont change the computer in the car and just add a bigger VAM? Have any of you done this or atleast tried it??
85 Turbocoupe. 5-speed.
Mods- single 2.5 inch exaust with highflow cat and Apex bullit muffler, Saab 9000 front mount IC,Centerforce II clutch kit, Gillis BV set at 19psi,K&N on VAM, Hurst shorthrow shifter.
BEST ET-(1/8)-9.7 @71.9 mph
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Pete D Offline
Administrator
#7
PSI I haven't tried it, other have. The EEC interprets the air flow through the VAM based on the voltage signal from the VAM, by virtue of how ar the door is open. The small VAM has a max capacity of around 280 CFM and the large VAM around 360 CFM (approximate figures) A large vam on a small VAM computer is going to be passing more air than what the computer thinks it's passing and the computer isn't going to give it enough fuel. It isn't going to run very well.
Pete Dunham


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