What is the maximum rpm that it is safe to revv a stock d15 engine while driving, without doing any permanent damage?




Modified by oovvutt at 10:28 AM 11/18/2007

 

Why?

 

Max power is around 6800, limiter is 7200, those are factory specs for a reason. Technically you could rev it out past that by way of a chip but you wouldnt make any power really.

 

7200 is safe but dont do it all the time 6800 is cool but if someone pisses you off then sqrew it just seventy two it !!!lol

 

Theres a red line and a rev limit for a reason, its safe to go up to red line.

 

It depends, there's no use in revving a Z6 past 6800 as it won't make any power from 6800RPM+, and if you have a Y8 it's like 6500, no sense in revving it past there as it resists due to the head constriction in the rest of the RPM.

What motor and setup are we talking about here?

 

all stock D15B7

 

So why you asking about a d16

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by oovvutt &raquo;</TD></TR><TR><TD CLASS="quote">all stock D15B7</TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ukdmegg5 &raquo;</TD></TR><TR><TD CLASS="quote">So why you asking about a d16 </TD></TR></TABLE>

... no comment on this one

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by oovvutt &raquo;</TD></TR><TR><TD CLASS="quote">all stock D15B7</TD></TR></TABLE>why ask about the d16 then turd?btw what honda should have done is either make tighter gears for the y8/z6 or move up the rev limiter so when you shift you dont fall out of vtec on every gear. i should be a honda engineer wtf!

 

Omg im sorry i think i was thinking on of one but wrote the other

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by raphael &raquo;</TD></TR><TR><TD CLASS="quote">why ask about the d16 then turd?btw what honda should have done is either make tighter gears for the y8/z6 or move up the rev limiter so when you shift you dont fall out of vtec on every gear. i should be a honda engineer wtf!</TD></TR></TABLE>

Someone needs to make a D2B conversion kit. I want a b16 tranny on my z6!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CapnKrunch &raquo;</TD></TR><TR><TD CLASS="quote">

Someone needs to make a D2B conversion kit. I want a b16 tranny on my z6!</TD></TR></TABLE>that ridiculous

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CapnKrunch &raquo;</TD></TR><TR><TD CLASS="quote">

Someone needs to make a D2B conversion kit. I want a b16 tranny on my z6!</TD></TR></TABLE>

there is a kit for this, i cant remember who makes it but ive seen it before i read it in a magazine, im going through them right now to try to figure out where it was but i cant seem to find it, go figure right?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by raphael &raquo;</TD></TR><TR><TD CLASS="quote">that ridiculous </TD></TR></TABLE>

????

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CapnKrunch &raquo;</TD></TR><TR><TD CLASS="quote">

Someone needs to make a D2B conversion kit. I want a b16 tranny on my z6!</TD></TR></TABLE>

Get the ex/si trans and call it a day.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sundown &raquo;</TD></TR><TR><TD CLASS="quote">

Get the ex/si trans and call it a day.</TD></TR></TABLE>

I do have an ex tranny, still the ex/si trans' gears are still longer than the ls tranny..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CapnKrunch &raquo;</TD></TR><TR><TD CLASS="quote">

I do have an ex tranny, still the ex/si trans' gears are still longer than the ls tranny..</TD></TR></TABLE>

That's hardly an argument worth making. They're pretty damn close. That's like comparing the ITR trans to the B16 trans.

 

You're forgetting this though:

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Padawan &raquo;</TD></TR><TR><TD CLASS="quote">You have to take into consideration that once you shift, the RPMs will drop down from where peak power is generated, and so you're essentially climbing back up the curve again. What you want to do is shift at a point that balances the drop-off in power past the peak with the drop-off in power before the peak. In most cases, that would be at/near redline. </TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ke98248 &raquo;</TD></TR><TR><TD CLASS="quote">You're forgetting this though:

</TD></TR></TABLE>

Shifting at like 6800-7k IS the point of balance on a Z6. You'll lose to much moving any further past there.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CapnKrunch &raquo;</TD></TR><TR><TD CLASS="quote">????</TD></TR></TABLE>the price of a kit is enough to buy a b-series motor and be done with it

 

stock d15 is simple, stock redline for a stock motor.
If it was a turbo d16 of somesort many people have spun then too 8000-8200 without any problems running forged internals.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Syndacate &raquo;</TD></TR><TR><TD CLASS="quote">

That's hardly an argument worth making. They're pretty damn close. That's like comparing the ITR trans to the B16 trans.</TD></TR></TABLE>

Yeah but I was not comparing it to the LS trans originally, I was comparing the z6 trans to the b16 trans.

 

The difference is minimal.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ke98248 &raquo;</TD></TR><TR><TD CLASS="quote">The difference is minimal.</TD></TR></TABLE>the diference in the d16 trans and a b16 trans is minimal?