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Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars


 
 
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Old 12-21-2003, 11:27 PM   #1
Warwick5s
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my crazy idea? Bike ITBs + Megasquirt

well....i've got a few ka24e's and a tranny sitting in my garage, and will be rebuilding one over the winter to go in my car in the spring. now, i was a vw 16v guy for a long time before getting my 240, and they do everything from supercharging, turbocharging, ITB's, carbs....whatever, but the thing is that there's lots of experimenting because they're cheapasses. (they're even more ghetto/cheap than S13 owners!) and one thing that lots of them do is to get a set of motorcycle individual throttle bodies, like this:



i had 40dcoe weber carbs on a 2.0 vw 16v engine, and was overcarbed. so i think something with around a 40mm throat on a 2.4 litre engine that won't rev as high should work out nice.

and for fuel i'll use a megasquirt ecu ( http://www.bgsoflex.com/megasquirt.html ) to control fuel, with the stock ECU controlling ignition and everything else. the cool thing about this setup is that i can get a set of ITB's with injectors and sensors for under 200 bucks, and the megasquirt you build yourself from a kit, and it costs around $150 and is VERY powerful. it uses a throttle position sensor and a manifold pressure sensor to determine fuel mapping so it would work fantasticly with ITB's.

i know i'd be able to get the megasquirt put together and working right (and if not, my dad the engineer would be able to fix whatever i did . ) so i guess my only concern is mating the throttle bodies to the head, which will require some planning.

so i guess what i'm asking is if there's something i'm overlooking, or if i am in fact crazy for trying this. i'm not sure if i'll be able to keep AC (although it doesn't work so i guess i wouldn't miss it, but it'd be damn nice to have), if there would be an easy way to mount the carbs i'm not thinking of, or any helpful comments.

and if anyone is confused still, check this thread at vwvortex: http://forums.vwvortex.com/zerothread?id=914763 , this is exactly what i plan on doing.




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