what is the redline and vtec activation point on a stock p28?

 

correct if i'm wrong but i wanna say 4800...

 

4800 vtec and 7500 fuel cut

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Evs-One &raquo;</TD></TR><TR><TD CLASS="quote">4800 vtec and 7500 fuel cut</TD></TR></TABLE>

Dang...didnt realize it kicked it that low

What car is a p28 from?

 

i have it in a d15b sohc vtec motor jspec but the vtec is not hooked up so it doesnt sound like i sound like i should take it past 6500 but im not sure what is the motor capable of handling ?

 

im getting the vtec hooked up soon!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by OoBryan &raquo;</TD></TR><TR><TD CLASS="quote">
What car is a p28 from?</TD></TR></TABLE>

92-95 EX/Si with the D16Z6.

 

p28s come with d16z6's i know that much

i always thought it was 5200, but i gues it makes more sense at 4800 as i seem to pickup speed there rather then 5200

redline i thought was 7200, but i dono..

 

anyways what can that engine handle? and i just got a new intake manifold i got a d16y8 is it hard to install any adivice or info?

 

redline is 7200...fuel cut is 7500 tho

 

but do u think a stock d15b jspec can handle 7200 rpms?

 

but do u think a stock d15b jspec can handle 7200 rpms?

 

anyone

 

of course. It's just a de-stroked Z6....should be able to handle the revs as well as a 1.6. No need to rev that high all the time tho....and you shouldn't be bouncing off the limiter. Shift at 7200 and be coo

 

well ecu wise i belive its 4800-4900, but it depends on how yur car is running. if its cold, fat chance. but on a regular day at normal temp it should be those numbers. also with the y8 manifold, i believe it fits, search a little more, but prepare to have fun with coolant. YUCK.....

 

VTEC engagement specs on a typical Z6 with P28 is 4800-5200rpm according to throttle position and engine load.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Evs-One &raquo;</TD></TR><TR><TD CLASS="quote">of course. It's just a de-stroked Z6....should be able to handle the revs as well as a 1.6. No need to rev that high all the time tho....and you shouldn't be bouncing off the limiter. Shift at 7200 and be coo</TD></TR></TABLE>

Shifting even at redline is too high IMHO. The Z6/D15B's stop making power at about 6,800-6,900, so I hardly ever shift past 7000. I remember when I had my exospeed stage 2 cam, that sucker kept pulling all the way to 7500...but when I pulled out the cam for my turbo project I could really see how much the stock cam sucked *** in terms of upper RPM power delivery.

 

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

Shifting even at redline is too high IMHO. The Z6/D15B's stop making power at about 6,800-6,900, so I hardly ever shift past 7000. I remember when I had my exospeed stage 2 cam, that sucker kept pulling all the way to 7500...but when I pulled out the cam for my turbo project I could really see how much the stock cam sucked *** in terms of upper RPM power delivery.</TD></TR></TABLE>

True I use to shift at 6,500 if you look at the dyno charts for a stock single cam....and look at the curves you should shift so you stay in the power band

 

you also gotta think gearing then too. I'd rather be out of my power band in 2nd gear before shifting into 3rd, then to shift into 3rd too early and be dog slow cause now I'm below the powerband

 

I thought fuel cut on the P28 was in the 8500-9000 range. I remember I accidentally downshifted from 5th to 2nd (meant to hit 4th) and the car when "whaaaaaa" then went silent. Looked at the tach and it was at 8800.

 

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nota-eg &raquo;</TD></TR><TR><TD CLASS="quote">I thought fuel cut on the P28 was in the 8500-9000 range. I remember I accidentally downshifted from 5th to 2nd (meant to hit 4th) and the car when "whaaaaaa" then went silent. Looked at the tach and it was at 8800.</TD></TR></TABLE>

there is no cut off when you mis-shift. I've seen a couple s2k and lude motors pop this way.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JICEK9 &raquo;</TD></TR><TR><TD CLASS="quote">there is no cut off when you mis-shift. I've seen a couple s2k and lude motors pop this way. </TD></TR></TABLE>

I don't know. I just remember shifting from 5th to 2nd, the car taking off like a rocket, then going completely silent.

 

I misshifted my old d16z6 WAYYYY off the tach before, nasty transmission grinds. I've misshifted my new b16 to 10k before too. Grinds 2nd, 3rd, 4th, lol.

 

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

92-95 EX/Si with the D16Z6.</TD></TR></TABLE>

Yup!