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RBC/PRC help......

Runners.jpg
 
My DC5 had itg maxogen, RBC, toda mani and a RM01A exhaust car had done 28k made 248bhp. Mates car Ctr, buddy club RBC and throttle body 70mm bore, BC mani, toda exhaust and a AEM cai made 248bhp but had a bit more torque 30k on the clock. Friend 2 had all the bits off my DC but had a kakimoto exhaust and made 250bhp with a bit more torque his car had done 90k. Just to give you an idea of what to expect if you do fit a RBC with the right mods. It's a piece of cake to swop the inlet manifolds. You just need a good socket set and a angel grinder.
 
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Yeah, by the way. The extra money, which is quite alot, to go 70mm with a different TB is 100% not worth the extra 2bhp you might get at 8k revs.
 
rm cya said:
absolute waffle.

what dyno did you use? what dyno did suits use? was it the same day? maybe your ep3 was down on power from the beginning...
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Please read into what different sized inlet manifolds actually do before trying to call bullshit.

They aren't just a bolt on for more power, there's always a sacrifice somewhere.
 
I know what different sized inlet runners do thanks. But to say the rbc is a waste of money is utter sh-t.
 
I'll go on fact till someone can produce a reliable back to back dyno result, thanks.

In my opinion, it isn't worth the time, effort, money, or slam panel.
 
well i was planning to fit a skunk 2 intake manifold with a 70 throttle body on my ep but i think it twice when i saw mr xdcx s post. if i did understand well ( because i dont speak english very well ) it s not a good- value for money- buy.
do you think it s a better idea if i just replace the oem manifold with a rbc ?
other mods on my car :injen air intake, dc sport manifold, 60 exhaust, hondata k pro
 
taspan said:
well i was planning to fit a skunk 2 intake manifold with a 70 throttle body on my ep but i think it twice when i saw mr xdcx s post. if i did understand well ( because i dont speak english very well ) it s not a good- value for money- buy.
do you think it s a better idea if i just replace the oem manifold with a rbc ?
other mods on my car :injen air intake, dc sport manifold, 60 exhaust, hondata k pro
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I've seen a few graphs and people's builds with the 70mm bored RBC and bigger TB and the extra expense on the "upgraded" TB is just not worth it for 2-3bhp.

With the mods you have, it's going to do bugger all in honesty. You might have an extra 3bhp at 8000rpm to brag about, but for the money, f*ck that :lol:

No harm looking at the Skunk2 over the RBC though, slightly more expensive but from graphs etc they seem to givr similar gains. Skunk2 fits without ruining the slam panel though = bonus.
 
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