Technical Tips > Post 84

TB Airfoil warning

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smackc4:
Hi, just a quick ‘warning’ or ‘awareness’ bulletin;  If (like me) you have installed a ‘Power now throttle body airfoil’ along with a smoothbore Air flow ‘Power coupler’ – check (often) that the airfoil hasn’t shifted itself…Found yesterday that mine HAD – almost halfway towards the MAF sensor! So, I’ve probably been running at around ½ air flow for a while (The fact that I can’t say I noticed a drop in performance, AGAIN brings the question of how much DO these ‘performance’ parts REALLY give us in H.P. Gain?

Anyway, that’s my little note – In hindsight I would have bought the airfoil that screws into the face of the TB so it can’t come loose; mine did so only because it relies on the factory concertina type of hose, to hold it in place with the first segment of the hose.

Cheers,
Steve
‘Smacko’

VET-005:
Every thing i read told me an air foil improves air flow and hence performance. I purchased one and when i had my car dynoed before and after instillation it made no differance, however they probably do make some improvement whilst driving as the air is being forced into the intake but on the dyno NAH!!!!!
Oh put some lock tight on your bolt and that should stop it comming loose.

smackc4:

--- Quote ---Originally posted by VET-005
Oh put some lock tight on your bolt and that should stop it comming loose.
--- End quote ---


Thats the point - THIS type doesn't HAVE a bolt; it's secured in the first fold of the (factory) hose coming back from the MAF.  Dunno if I'd like to use locktight where there's a chance of it being 'consumed'...

Thanks for the prompt reply too :-)

ozvette:

--- Quote ---Originally posted by VET-005
Every thing i read told me an air foil improves air flow and hence performance.
--- End quote ---


According to the people who sell them, yes.

Those who use them, no.

They are regarded as  pretty much worthless.

I'd just take it out and then not worry about it coming loose ;)

smackc4:
Well, since I found a dirty big restriction in the form of 2 'ledges' on the bottom of plenum just behind TB; seems we're p*ssing up against a wall as far as getting smooth airflow goes!  Makes one wonder why they'd buy a bigger TB if they looked behind it!;28

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