JDM_Frijoles

I want to know whats the rev limit on a JDM D15B.

dylokjai

it would all depend on your ecu wouldnt it?

JDM_Frijoles

ok smart *** i got a p28, you tell me. But that wasnt my question, i mean the motor itself.

Project_DX

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dylokjai &raquo;</TD></TR><TR><TD CLASS="quote">it would all depend on your ecu wouldnt it?</TD></TR></TABLE><TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDM_Frijoles &raquo;</TD></TR><TR><TD CLASS="quote">ok smart *** i got a p28, you tell me. But that wasnt my question, i mean the motor itself.</TD></TR></TABLE>
the motor doesn't control the rev limit your ecu does
for ex. i have a stock D15b7 rev limit was 6200rpms, i turbo charged it..and had to get my ecu chipped and tuned to run the engine right, now the rev limit is at 8000rpms....my friend also boosted his car but had it set for 9500rpms

...with a stock p28, i believe it is set around 7200rpms, not 100% sure
if you realy want to know then get in your car, start it up, leave it in neutral and bounce it off rev limit

JDM_Frijoles

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Project_DX &raquo;</TD></TR><TR><TD CLASS="quote">
...with a stock p28, i believe it is set around 7200rpms, not 100% sure
if you realy want to know then get in your car, start it up, leave it in neutral and bounce it off rev limit</TD></TR></TABLE>
Yeah but with that theres the risk me blowin the ****** up. What i understood was making the needle bounce meant a thrown rod with the quickness.

BauleyCivic

7200 redline, 7500 fuel cut I believe...

JDM DERF

yea, but depending on which ecu you got in the car will tell you what the rev limiter will be. i dont see a stock d15b making any power past 7200. correct me if i'm wrong

JDM_Frijoles

So what your saying is if i basically set my rev limit to...............lets say 9000 rpm.........the motor will simply keep revving? No, its gonna pop some way or another!

JDM_Frijoles

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Big Snook &raquo;</TD></TR><TR><TD CLASS="quote">yea, but depending on which ecu you got in the car will tell you what the rev limiter will be. i dont see a stock d15b making any power past 7200. correct me if i'm wrong</TD></TR></TABLE> Thats what i thought. Guys my goal is to get the most power out of my RPM's when racing ****** on the street. (and im quite aware im rockin a SOHC, but my motor aint no chump )

JDM DERF

i got a d15b in my hatch, and i agree it aint no chump! but if a motor doesnt make power a certain rpm point theres not point in goin past that. unless you got internals or FI

JDM_Frijoles

I think my question belongs in the Drag Racing forum but "Where do i shift at to get the most out of the engine?" Thanks all, after this im done.

Syndacate

Jeez, so much complexity.

Redline is 7200 RPM
Fuel Cut is 7500 RPM

That's on a stock P28 ECU, which is for a D16Z6 motor. The D16Z6 can handle 7200 RPM safely. The JDM D15b could probably handle 7200 safely as well. I wouldn't go above that though. Maybe 7k flat if you wanna be really safe.

It shouldn't matter though, b/c if there was no rev limiter, you could probably hit 8 with no thrown rods.

That problem doesn't come from hitting it for 1 second before you shift, it comes from holding it there (valve float, etc.).

If you're running a JDM D15b I'd shift AT the redline (7200).

The power runs through 7, but if you wanna keep it safe shift there.

If you wanna shift later you're going to need some work.

dylokjai

hahahaha you calling others ****** for street racing...to me the only ****** is you for participating the illegal street races.

BauleyCivic

This thread is over.