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ITB's on my 1992 hardbody

5230 Views 7 Replies 5 Participants Last post by  hardbodylover
I really want more power out of my truck, but I also need it to pass emissions. There doesnt seem to be many aftermarket parts for the truck ka24e, so i know there is alot of custom work involved. i want to maybe put individual throttle bodies on it, but still pass emissions. Is this possible?

If not, I would like to find out other ways to get more power. Mainly acceleration. I advanced the timing for a short time. that resulted in more torque, but killed my gas mileage. So i set it back to +2. If anyone has any ideas for more power that will pass virginia emissions, please let me know. getting raped by an si civic is motivating me to try for more. I was thinking of pulling both manifolds and port matching and polishing them.
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I really want more power out of my truck, but I also need it to pass emissions. There doesnt seem to be many aftermarket parts for the truck ka24e, so i know there is alot of custom work involved. i want to maybe put individual throttle bodies on it, but still pass emissions. Is this possible?

If not, I would like to find out other ways to get more power. Mainly acceleration. I advanced the timing for a short time. that resulted in more torque, but killed my gas mileage. So i set it back to +2. If anyone has any ideas for more power that will pass virginia emissions, please let me know. getting raped by an si civic is motivating me to try for more. I was thinking of pulling both manifolds and port matching and polishing them.
What can't you find? there's headers, intake, spacers, cams, turbo kits, etc?????? I keep hearing you guys state this but there are plenty of parts for your engines, suspension, body, etc! You may need to order a Nissan Motorsport catalog, check out Nismo, JWT, Race engineering There alot of parts not like Honda but more than KIA or the like....ITB for my built Z24I would be at least 200 whp, my intake is the restriction!:balls:
you'd either need to run carbs or a standalone ecu to tune ITBs

also, ITBs alone do not make power, they increase throttle response but will be horrible for daily driving

i built an ITB D16 and it was a huge undertaking and lesson in tuning
What stand alone system were you using? I think their awesome, especially when tuned properly! Going to 48mm or 50 mm are too big for street preformance....I would go no larger than 40mm on my 2.4L long trumpets to increase low end torque the most important thing in good driveability!
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