Greddy IM for RB25 - dyno results?

Discuss the RB20, RB25 and RB26 series engines.
afwfjustin
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Joined: Thu Jun 26, 2008 7:14 am
Car: RB25DET S14

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I have a stock rb25 (s14) with 3" turboback and stage 3 clutch. Ultimately I'm looking for around 400 rwhp. I see a lot of people running the greddy intake manifold and I was curious if anyone has dyno results from this manifold? I still have the side mount IC and would rather get the IM sorted out before I go to a front mount setup.

Since the rb swapped 240s are such a niche, it's hard to find a lot of information on them (and used parts in the fs forums) on different forums.


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Coolwhip
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i doubt you'll find any hard numbers on just the IM dyno numbers.

Most of the time the IM is coupled with the FMIC, or even the entire swap. Thus, any gains are usually dictated by the combination of a few changed varibles.

However, the factory unit is more than enough to handle 400whp. But the Greddy does look x10 better, and easier to work on.

afwfjustin
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Joined: Thu Jun 26, 2008 7:14 am
Car: RB25DET S14

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It's ridiculous that these companies don't provide dyno numbers.

Even with the stocker being able to support 400, it seems that a higher flowing one would get you there easier, and on less boost. I was just curious if anyone did a before and after.

Justin

240z4u
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Car: '95 Nissan 240SX

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afwfjustin wrote:It's ridiculous that these companies don't provide dyno numbers.

Even with the stocker being able to support 400, it seems that a higher flowing one would get you there easier, and on less boost. I was just curious if anyone did a before and after.

Justin
If they did publish numbers, you would find them to be so skewed they were useless anyway.

The shorter runners of that IM should move the powerband higher.

Evan

afwfjustin
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Joined: Thu Jun 26, 2008 7:14 am
Car: RB25DET S14

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Thanks for the replies.

I might go with it and install before I do my fmic charge piping and do a before and after dyno. I'll probably do the Q45 TB with it as well.

Anywhere I can get one used? It's tough finding used parts for this motor.
Modified by afwfjustin at 1:36 PM 7/25/2008

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Coolwhip
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afwfjustin wrote:Anywhere I can get one used? It's tough finding used parts for this motor.
hit me up

afwfjustin
Posts: 9
Joined: Thu Jun 26, 2008 7:14 am
Car: RB25DET S14

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I don't see a PM option on this forum. How can I get in contact with you? I see your site but the parts look new...
Modified by afwfjustin at 2:06 PM 7/25/2008

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RB_Seth
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Car: 92 240sx RB25
91 240sx LT1
95 240sx 280k mile DD

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email him - ricky @ rawbrokerage.com and just ask for what your looking for... I have a Q45 throttle body that I'm not going to use any more too, my email is sjqr15 @aol.com


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