Stockish RB20 dyno.

Discuss the RB20, RB25 and RB26 series engines.
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DriftingisLame
Posts: 974
Joined: Wed Feb 02, 2005 1:41 pm
Car: '91 240sx coupe, rb20det

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Basically my rb20 is stock with some *un* bolted-ons (open stock downpipe and maf) SAFC1 running 12 psi (tiny spearco FMIC). First run is before I corrected with the SAFC, second run is after. I corrected about -13% -11% across the board on the second run. Still some room to improve with the A/F ratio, timing set at 15 degree's BTDC.

What I absolutely love even more than the peak gains is the significantly higher torque down low, and well... everywhere. Driving around I dont get hardly any backfires anymore, and much smoother power... feels like a whole new car!

What do you guys think?


RB20DETodd
Posts: 3763
Joined: Thu Apr 07, 2005 10:30 pm
Car: 92 Nissan S13 coupe SE RB20DET

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GREAT numbers, id like to tune what i got right now, my car runs rich as hell, but i think its cause my o2 sensor isnt working cause of a close encounter with the turbo elbow.

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RB280SX
Posts: 208
Joined: Thu Apr 27, 2006 10:10 pm

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Running alittle lean for my tastes, but good power none the less.

27RB240
Posts: 395
Joined: Wed Nov 02, 2005 2:12 pm
Car: 92 240sx coupe

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Congrats man!!!!! nice numbers

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DriftingisLame
Posts: 974
Joined: Wed Feb 02, 2005 1:41 pm
Car: '91 240sx coupe, rb20det

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Thanks guys!

What? Lean? I thought 12:1 is still rich for those who dont like the open downpipe ear blowing backfires =P


Yellow4g63
Posts: 3718
Joined: Mon Jan 20, 2003 6:07 pm
Car: 95 Nissan RB20 240SX RB20
91 Nissan NX2000 VE power
95 Nissan 240SX Stock
Contact:

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Good nubers, Mine put down like 180ish when it was bone stock, cept for exhaust and filter. Then 239.9 or as I like to call it 240hp lol with fmic, Intakemanifold and boost at 14psi. Still running a untuned PFC. Crank that fuker to 14psi and make the same hp or more..... but make sure you have another turbo to replace it lol.

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DriftingisLame
Posts: 974
Joined: Wed Feb 02, 2005 1:41 pm
Car: '91 240sx coupe, rb20det

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Okay, I just got back from the "legal" drag racing.............

Kills for the night:H22 older 2 door accord, full bolt ons, clutch/flywheel

EK civic coupe, LS Vtech, Cams with full bolt ons, tuned with hondata, hondata Launch control.

If theres one thing I hate about this forum is the lack of real solid numbers. I think theres a lot of "I heard from this one guy..." turning into "I know for a fact".

I'm going to do my best to record my numbers (DYNO AND DRAG), after every major power increase...and updated mod list. So we can have some REAL solid numbers. No offence, but its not that hard, and very informative...

SO DO IT!

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rbsileighty
Posts: 1694
Joined: Sun Feb 09, 2003 8:10 am
Car: 92 S13 Hatch w/ RB20 & 05 Audi S4 Avant 6MT

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I have some real solid crappy numbers from my dyno run (I purchased 3 sessions when i did it so 2 more at least to come)... hopefully my PFC will fix things and I can make numbers around yours...

What kind of dyno did you run on?

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DriftingisLame
Posts: 974
Joined: Wed Feb 02, 2005 1:41 pm
Car: '91 240sx coupe, rb20det

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My safc made a huge difference... I'm sure you'll dyno considerably higher with your PFC going

Says dynojet on the graph silly =P


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