dynod the 25

Discuss the RB20, RB25 and RB26 series engines.
cyris3d
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well bunch of friends from our shop out here went to the dyno.. so i decided to dyno the 25 before i pull it out and move on to the 26..

well at 11psi in 3rd gear.. it made 333.3 and the wheels spun..so we uped the boost to 12spi and tried it in 4th gear.. 12psi was a lil too much.. it sputterd abit.. but still made 351.5hp to the wheels.. i figure with a colder range plug, 12psi should be no problem on the 91octane..

Rb25DetCutsom 60-1/t3 turbo kitFMICStock 370 injectors q45 maf..

351.5hp On 91 octane..

ill scan the dyno sheet tonite.


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xjon
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Nice work. Sorry to hear your parting with your 25 but excited for your 26.

Red_Liner
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Nice numbers!!!

besides the T3, Q45 Maf and FMIC any other mods??

cyris3d
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tial waste gate

Fiendish
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Did you let it run with the Q45 MAF and stock ECU before piggybacking with the SAFC? How did it idle?

cyris3d
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it let it run with touching the SAFC.. wouldnt idle.. wouldnt run right at all.. after some tinkering.. i got to to run and idle good..

my dyno plot

gabossie
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Nice. Have fun with the 26. Have you managed to sell the 25 yet, or did you decide to part it out?

cyris3d
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i think im gonna part it out.... im gonna make a post soon..

Ineed2speed
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Nice #s man! When did you hit full boost? When did boost start spooling? Too bad the dyno sheet isnt posted with the RPMs...All good though! Oh yea, whats the full specs on that turbo? What a/r? What bout it is custom?

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93RPS13
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nice numbers, i would like to see the RB26 when it done it goin to be a beast

Imissmyturbo
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Is the Q45 MAF needed to make that kinda power? I guess you never got to track the car with that much boost right?

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xjon
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Don't know how to read the dyno chart but found it interesting that up to 100mph it only hits 300hp then it goes up to 350 from 110-120mph. Is that some timing deal? (VVT)

goofynick6
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Looks like some tuning would help out a LOT.

The Q45 maf isn't needed for that kind of power, a stock maf could do it, but be maxed out..a z32 maf would be just fine.

With injectors and about 16 psi on some 93 octane you'd be doing a lot better.

Nick

Imissmyturbo
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How did you get by the boost cut? I would think with that much airflow it would cut out. They say it's at 14-15 psi but From what I understand the ECU doesn't know the PSI just airflow.

cyris3d
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the q45 maf felt like it made a big diffrence... you can even hear that way more air is being sucked in..

S13Sil-line
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cyris3. Please e-mail me


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