targa7racing

ive searched for a while and i cant find out what the benifits of this mod are,
is it worth it to do on an 88 s4

st1llet0

iTrader: (2)

You gain some thottle response by removing the plates. If your hard up for HP removing the rod they sit on will gain you a pony or two up top.
Check out the beefy N/A thread, lots of info
https://www.rx7club.com/2nd-gen-archive-72/how-make-beefy-n-need-your-recommendations-31410/

Roen

iTrader: (2)

You might get 1 hp at the cost of street drivability.

targa7racing

thanks that thread is very helpful.
any one have a link to a good write up on how to mod the tb?
also a write up on how to do the emissions delete

clokker

iTrader: (2)

That depends on how you "mod" the throttle body.
I recently removed the throttle plates/shaft and the dashpot and thermovalve but left the thermowax intact.
Throttle response seems marginally crisper and "street driveability" was affected not one whit.

Roen

iTrader: (2)

The problem is that most results from this mod are felt using the butt dyno....

fidelity101

iTrader: (11)

lol all over this thread.

search - my thread debunks some myths and gives you some legit data.

clokker

iTrader: (2)

That's only a problem if you want to make hard, quantified claims.

I did it on a whim, just to see what happened.
And yeah, maybe my butt had some hope invested in the outcome.

While the advantage is arguably marginal, the downside is equally so...to the point that I wonder why Mazda bothered with the secondary throttle plates at all.

fidelity101

iTrader: (11)

you make horsepower by enlarging your smallest orifice in the 'pump' system. (from an airflow standpoint)

stylEmon

iTrader: (2)

emissions would be my guess?

BASTARD

iTrader: (4)

that's a bit vague and not totally true

NCross

iTrader: (18)

Waste of time.

rx-711

iTrader: (2)

check out rotary resurrection's website he has alot of detailed write ups that helped me with all of this

fidelity101

iTrader: (11)

exactly

targa7racing

thanks man that site is wicked

need RX7

iTrader: (4)

I did it because I was bored. Didn't notice any differences, positive or negative.

RotaryRocket88

iTrader: (7)

Benefit?

It's more aesthetically pleasing.

/thread