Arrington tb 88m

So my father recently got rid of his 6.4 challenger ( upgraded to hellcat) and gave me his ported throttle body he purchased from arrington. Now I know most ported tb's for our 5.7 is 87 but do you guys think a 88 would be okay?

Let's be clear, the Arrington 88mm is NOT a ported throttle body, it's is a true bore throttle body and I would not recommend using it if you are basically stock or just bolt-ons. You will lose bottom end power because it's too large a throttle body. Now, if you were running a stroked block or a positive displacement supercharger then go for it, if not I would sell it and either get a ported 81mm throttle body or put it towards a different mod.

Arrington sells an 87mm ported throttle body that's made by Modern Muscle. Be sure which throttle body it is.

I got the Arrington 90mm

Dogeexpress said:

So my father recently got rid of his 6.4 challenger ( upgraded to hellcat) and gave me his ported throttle body he purchased from arrington. Now I know most ported tb's for our 5.7 is 87 but do you guys think a 88 would be okay?

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It doesn't hurt to try it. It won't damage anything. Slap it on and go run it and see how u like it. Now I will say that ur intake opening isn't that big, but either way try it and let us know how it goes. If u don't like it sell it I'm sure many will buy it on the LX forums

Yeah i would say to give it a try... not gonna cost u anything!

Alright folkes, you asked I'm delivering.
Slapped the 88 on to see if I could notice anything,
(This was done with vararam intake).
First off il state it was a royal pain in the.... to get the intake hose over that throttle body but it does fit!.
Next onto initial start up idles fine and such, gave the gas pedal a few bumps with the hood open and the intake suction noise was much more pronounced.
First test drive intake noise still more noticeable even with hood shut. I personally didn't notice any bottom end loss but my butt dyno says higher rpm had a very very slight bit more pull to it. Please note were not talking a massive power jumping mod to begin with.

I decided to leave it on if anything later down the road it will for sure be a benefit, I just had a limited slip installed and 3.92's put in so overall I'm sitting in a pretty happy spot.

You had the stock TB before?

Paluby said:

You had the stock TB before?

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Yes

Unless you get the intake manifold opened up to the same size as the tb, it's kinda pointless to use it.