p28 with d15z1?
 

well have a 92 civic hatch vx. its a lowly 1.5 vtec-e. vtech probably kicks in at around 5200, but red lines at 6000. so that's a whole 800 rpm of vtec. was wondering if i would be able to run a p28 and take it to 7200. anyone know much about this motor.

thanks

Re: p28 with d15z1? (whal3_p3nis)
 

Why do you want to take your stock motor 1200 rpm more then it has to. Thats just asking for trouble.

Now if the motor is somewhat built then thats another question.

But for stock theres no reason to do that.

Re: p28 with d15z1? (whal3_p3nis)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by whal3_p3nis &raquo;</TD></TR><TR><TD CLASS="quote">well have a 92 civic hatch vx. its a lowly 1.5 vtec-e. vtech probably kicks in at around 5200, but red lines at 6000. so that's a whole 800 rpm of vtec. was wondering if i would be able to run a p28 and take it to 7200. anyone know much about this motor.

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

NO, vtec-e kicks in around 3000 and you make your max hp (92) at 5500 and max torque (97 ft/lbs) at 4500 (so there is NO reason to rev that hight with a stock z1, which is basically how every z1 is internally) . So why in the world would you want to rev to 7200? plus that redline is there for a reason, not just to stop you. You're only lowering engine life by reving that high. Also a p28 will make your lean burning z1 run very rich and vtec will kick in MUCH later, as far as making power and redline standards go, so can you say less power?

Re: p28 with d15z1? (whal3_p3nis)
 

what about mini me swaps. dont people run a p28 with a dx block and vtec head. heard of people using vx head too. what are the differences in the dx vs vx block. asking cuz looking to run ls rods, and going turbo using 14b off an eclipse and eclipse 450cc injectors with afc hack.

Re: p28 with d15z1? (whal3_p3nis)
 

thanks for everyone's input. just looking at options. just wondering cuz friend said he has heard of people running the vx motor for a sohc homemade turbo setup. i was thinking of going at least d16z6 till he told me that. but haven't found anyone running a vx sohc turbo setup.

Re: p28 with d15z1? (whal3_p3nis)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by whal3_p3nis &raquo;</TD></TR><TR><TD CLASS="quote">what about mini me swaps. dont people run a p28 with a dx block and vtec head. heard of people using vx head too. what are the differences in the dx vs vx block. asking cuz looking to run ls rods, and going turbo using 14b off an eclipse and eclipse 450cc injectors with afc hack. </TD></TR></TABLE>
the rods in a z1 are 3mm longer and the piston's pins sit 3mm higher, and the pistons are very very domed. With a z6 head on a z1 block your cr will be so low you will make so much less power. I've never heard of people using a z1 head on a non vtec block, that is so stupid. It is not logical in the least. LS rods will only work on a D16 block, the rod bearings are smaller in a D15. You'll need to get forged internals (made for a D15 (both pistons and rods)) if you want to run on high boost at all on a z1.

Re: p28 with d15z1? (CivicVX94)
 

do you know who make internals for a z1. not looking to boost high. 10 lbs at the most. more like 7lbs.

Re: p28 with d15z1? (CivicVX94)
 

read this, it will tell you most of what you need to know. The D15B and D15z1 internals are mostly the same, except pistons. So this all will apply. Read the whole thing, all your questions should get answered. I don't feel like repeating stuff I already said
https://honda-tech.com/zerothread?id=957536

Re: p28 with d15z1? (CivicVX94)
 

thanks i appreciate it .

Re: p28 with d15z1? (whal3_p3nis)
 

https://honda-tech.com/forums/images/smilies/emthup.gif any time. pm me if you have any q's. I have a vx and know a ton about it so I can prolly answer most q's about it.

Re: p28 with d15z1? (whal3_p3nis)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by whal3_p3nis &raquo;</TD></TR><TR><TD CLASS="quote">do you know who make internals for a z1. not looking to boost high. 10 lbs at the most. more like 7lbs. </TD></TR></TABLE>
no one does, so you'll need both rods and pistons for a D15, you can't have one without the other (like forged rods and stock pistons or visa versa). I would not run that on a stock z1, the rods aren't exactly the beefiest in the world.

Re: p28 with d15z1? (whal3_p3nis)
 

i had posted a thred and no one really gave me a good answer i have a z6 SOHC VTEC head on a d15b7 but the head is from a AUTOMATIC and i have standard... need some info... i have all of the parts needed except the ECU and i dunno which one i need...I thought i needed a p28 but i was sadly wrong... if any one have any idea please let me know...thank you much https://honda-tech.com/forums/images/smilies/emthup.gif . oh and good luck w/ ur mini me swap..bump https://honda-tech.com/forums/images/smilies/emthup.gif

Re: p28 with d15z1? (CivicVX94)
 

go for crowler forged set... here is a site u can check out http://www.raceeng.com/Pages/Page_8sc.html https://honda-tech.com/forums/images/smilies/emthup.gif great site

Re: p28 with d15z1? (BoZz)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoZz &raquo;</TD></TR><TR><TD CLASS="quote">i had posted a thred and no one really gave me a good answer i have a z6 SOHC VTEC head on a d15b7 but the head is from a AUTOMATIC and i have standard... need some info... i have all of the parts needed except the ECU and i dunno which one i need...I thought i needed a p28 but i was sadly wrong... if any one have any idea please let me know...thank you much https://honda-tech.com/forums/images/smilies/emthup.gif . oh and good luck w/ ur mini me swap..bump https://honda-tech.com/forums/images/smilies/emthup.gif </TD></TR></TABLE>
a p28 should get that job done. the only differences between an automatic and manual z6 head is that the camshaft is slightly less aggressive on the auto.

check this out for general info on mini-me's
https://honda-tech.com/zerothread?id=635580

Re: p28 with d15z1? (CivicVX94)
 

yea but someone told me that i have to drill and tap 3 holes in the intake manafold??? do u know anything about that? http://images.honda-tech.com/set1//smile/emcrook.gif

Re: p28 with d15z1? (CivicVX94)
 

pm'ed you vx94

Re: p28 with d15z1? (CivicVX94)
 

and i thingk i can get u a d16 block i am not sure if it is fit for z6 or y8 but i will find out and let u know fir sure... https://honda-tech.com/forums/images/smilies/emthup.gif bump if interested

Re: p28 with d15z1? (BoZz)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoZz &raquo;</TD></TR><TR><TD CLASS="quote">yea but someone told me that i have to drill and tap 3 holes in the intake manafold??? do u know anything about that? http://images.honda-tech.com/set1//smile/emcrook.gif </TD></TR></TABLE>

no i'm sure what you're talking about. go into a little more detail on this. I've never heard of this tho http://images.honda-tech.com/set1//smile/emcrook.gif

Re: p28 with d15z1? (CivicVX94)
 

yea i found out that its for the idle air control valve (IAC valve) so i guess i'll start a topic for it... https://honda-tech.com/forums/images/smilies/emthup.gif https://honda-tech.com/forums/images...es/emsmile.gif https://honda-tech.com/forums/images...es/emsmile.gif https://honda-tech.com/forums/images...es/emsmile.gif https://honda-tech.com/forums/images/smilies/emthup.gif

Re: p28 with d15z1? (BoZz)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoZz &raquo;</TD></TR><TR><TD CLASS="quote">and i thingk i can get u a d16 block i am not sure if it is fit for z6 or y8 but i will find out and let u know fir sure... bump if interested</TD></TR></TABLE>
dosnt sound like you know what your even talking about, all d series bolt up . not the DOHC del sol motor of course...is that motor a b series or a d? i dont even know. uh oh...

Re: p28 with d15z1? (murmur9)
 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by murmur9 &raquo;</TD></TR><TR><TD CLASS="quote">
dosnt sound like you know what your even talking about, all d series bolt up . not the DOHC del sol motor of course...is that motor a b series or a d? i dont even know. uh oh...</TD></TR></TABLE>
B16a3 (i think it's 3) came stock in del sol vtec models
they only dohc D's are the D16a1/3/8/9 which came in 86 thru 89 tegs. and of course the dohc zc which came in crx's, integra's and i think civic si's in JDM land. they were produced from 85-93....just a little fyi https://honda-tech.com/forums/images/smilies/emwink.gif
*edit* i want a dohc D badly, that's why I know this https://honda-tech.com/forums/images...es/emsmile.gif