I've heard from other sources that it's possible to swap the throdle bodys of the 300zx for the bigger nissan 240sx throttle body. If this is possible what mods are needed to make this work? This would help since i'm a low budget racer, thank you you guys rock!

I'm guessing from your name you have an 85 300zx. First off you shoudl post this in the 300zx forum if you want more answers. Second if you have a non-turbo then it's a wasted mod and not worth your time/money. Lastly did you try to search? This topic has been covered dozens of times.

even with a turbo its a waste of money.

THe only time this swap will help is when u start pushing 450-500hp range or higher.
If ur not putting such like numbers, dont waste ur time or money, put ur money on the suspension, engine, or ECU...

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1973 DATSUN 240z: Sold
1984 DATSUN 300zx Turbo: Back to the Drawing boards
Daily Driver: 1999 Nissan Altima (My Gas Saver)
[japanesenostalgiccar.com]

it's actually a 90' 300zx

"it's actually a 90' 300zx"

Guess you should have mentioned it up front, eh?

No, it won't work. No, you don't need it.

Wow, that changed a lot on the application...

:Rolls Eyes:

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People Are Idiots, Just look around here and you will see!
Tony D: "Knowledgeable but Caustic"... rationull
You simply can't call someone a F**ktard here, no matter how truthful it is.
[www.ozdat.com]

I think twin 60mm tbs would be a bit overkill. the 50mms on there will flow more than enough air for pretty much any amount of HP that engine can pump out in NA form.