Dyno'd my Rb20det the other day........

[blues14]

Here is my dyno.....The only thing i gotta figure out is that blip at 5k rpm.... mods......Stock rb20det (internally) FMIC, pod filter, Apexi turbo, 440cc inj, nismo fpr, 3'' downpipe, testpipe, 2.5'' hks exhaust, Carl H rom tune ecu, Safc2, AVCR.4th gear pullsThe 284 was at 9psi, 303@14psi, and 320@16-17psi

[rb20s13]

nice numbers man keep us posted

[Nick51]

jeez nice numbers

where abouts are you in seattle? Im in the bellevue area with a completly stock 20 running 12psi but i know my numbers would not be anywhere near yours. hows intec racing on there tunes/price

[Sky80]

Nice! What apexi turbo is that?

[blues14]

not sure what turbo it is....i assume its the rb25 upgrade turbo...since it bolted up perfectly. I bought it used off a ka-t.

Intec is cool, nice guys, I only did a few pulls, no tuning. but they are very good in that field as well. I would reccomend them.

[GhostRider240sx]

Why use a safc along witha tuned rom?

[SeVa-S13]

Why use a safc along witha tuned rom?

Because a cookie-cutter ROM/chip is not a tune? Carl sets up the parameters for MAFS and injectors and stuff with a good safe tune to make the car run well, but every engine is different and if he were to try sell a prepackaged tune to everyone based off tuning one guy's engine, he'd be blowing up alot of engines. (Same is true for the JWT/Enthalpy ECU's.)

Edit: Nice numbers.

[Eikon]

Very nice numbers!

What's with the freak out at 5k rpms? Seems to be consistant across all three runs.

[SeVa-S13]

Here is my dyno.....The only thing i gotta figure out is that blip at 5k rpm....

[blues14]

exactly......

The blip at 5k actually caused a fireball....we took some fuel out at 5k rpm and it helped reduce the blip and stopped the fireball, so there is definately something to fix, but overall i am pretty happy with the car. I killed a nice *** 350z on the freeway the night before, so i fugured i was making pretty good power

[SeVa-S13]

Kinda lame the dyno didn't have a wideband O2 readout for ya. That woulda helped out alot.

[ryan15]

Im sure hes has a wideband... I mean how the hell can you tune w/o one?

[jdmser]

Those numbers look great for stock cams. If you could find out more about that turbo I'm sure I'm not the only one that's curious about the size.

[blues14]

My friend and I street tuned with a wideband.....never saw the blip on it. kinda wierd.

[Nick51]

that heat wrap on your ic piping, does that help out a good amount from heat stroke and did you have to hack up your battery tray or anything for fitment??

and yeahh find out some more info on that turbo

[Sky80]

Is your CAS or MAF freaking out at that 5k blip? Thats the only two things I could think of that would make just a blip, have any friends you could swap out known good parts with?

[Carl H]

great power there man, i'll look at the chip and see what i can do to smooth that blip...

[blues14]

thanks carl. The guys think there may be some bad or missing timing values there, or possibly waay to much fuel there. We took a little fuel out with the safc, and it helped a bit.

The intercooler piping only requires a 3" hole just about at the batter tray. It just nicks it a little. Not too tough. As for the heat wrap, I dont know if its doin much, but it can't hurt.

[midnightsliding]

i have the same blip on my RB25

[Kisorperformance]

i had a couple dips like that in my graph... you could hear the car missing too when it did it.... i bumped a little timing into it and it cleaned right up.

about 3-4 degrees

zerothread?id=293216

[DriftX]

Are your coilpacks fine? My car would hardly rev over 5k, taped up the coilpacks and it helped.

[blues14]

they looked fine when i changed the plugs, but you never know, maybe i will see about testing them

[uber95]

Where is the turbo starting to make some real boost (read 6lbs or more) looking at the graph about 4K? My set up is very close to yours with the exception of 550cc injectors, and a full 3in exhaust (having to guess on your turbo size). Nice power...