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Old 03-06-2023, 01:14 PM   #1
Neinris
 
Drives: 08 Yaris 3 Door Hatchback
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I thought the purpose of the RS intake was to have shorter runners, but now you're adding a spacer or two, wouldn't that be the same as stock length? Is there something else special about the RS intake manifold?
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Old 03-06-2023, 08:25 PM   #2
Compeer
 
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Quote:
Originally Posted by Neinris View Post
I thought the purpose of the RS intake was to have shorter runners, but now you're adding a spacer or two, wouldn't that be the same as stock length? Is there something else special about the RS intake manifold?
See I never realized there was a spacer, I could not find any mention of it, with the spacer the rs manifold has the same 75mm of "straight" intake section as the normal non RS intake so unless you can mod the heater return pipe to move it (and even then it might not fit idk) the only change is making it longer not shorter.

Longer intake=lower powerband
Shorter intake= higher power band

So the RS manifold is a failed experiment until I can mod the heater pipe and see if it will fit on allowing for a 25MM shorter runner.

With the Runner on I now have 100mm of straight intake and IDK I guess the tooter guy was on to something because it feels better to drive off the line.

Lucky I get these things at the wreckers and I don't pay much for them, because I now have a spare ported manifold.
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