powerband
 

i was reading that a d15b2 has a max hp of 90 hp from the factory as a dpfi engine. i swapped mine to mpfi. what gains am i looking at in horsepower? im on a pm6 ecu of course. i might as well boost this engine. should be able to get 200 easy out of it being freshly restored with -500 miles on it. what figures am i actually looking at NA wise with a mpfi swap?

Re: powerband
 

92.5?

Re: powerband
 

should throw you over 100. The d16a6 motor imo was underrated hp wise from the factory atleast thats what dyno's have shown me.




Boost it'll be like every other turbo d15 mid 13 sec car aka fun little street car

Re: powerband
 

sounds good. i think i will turbo this motor first as i continue to build my d16y7, though that may take a little longer than expected now thanks to some ------- how back stabbed me on a deal we made. i will be NA over the winter here in my area. no way would i ever attempt boost with the snow we get :1 so im gonna find a header and put on my new exhaust i just bought for it today, thrust muffler and glasspack. hopefully i can get about 120 out of her NA.

Re: powerband
 

Your really not going to make any more power out of it unless you buy a real header. China ebay headers=shiny piles of junk. They dont make a d series unit that works. DC at the least will actually do the job. 120 is a hefty goal and unless you switch to port work,bored tb,cam etc your motor isnt going to make much more than it already is.

Re: powerband
 

120 hp?
I'd rather ride a donkey :l

Re: powerband
 

120 isnt that bad better than a stock dpfi set up thats for sure

Re: powerband
 

HEY the d15b2 and the d16a6 heads are the same cast right?
Just different cams?

Re: powerband
 

thats the way i see it. but if a cheap ebay header wont make a difference then i might as well stay stock and just boost later down the road. the only thing is finding a ------- motor so i can get my kit back :7 DAMN BACKSTABBERS CAN SUCK ME OFF!!!!!!!!!!!! :7

Re: powerband
 

and d15b2 valve springs=junk
d16a6 springs=9k giggles

Re: powerband
 

Ok because i have a d15b2 head and a d16a6 head and the a6 head need to be decked.
I am buying springs and retainers anyways so im just gonna use the d15b2 head.
So technically a d15b2 head out flows a z6 head
Thanks chris

Re: powerband
 

out of the box the z6 head is superior has flow is


a6 reworked=gangster=not hmt pricing

Re: powerband
 

ok well
I have head marked pm3-10
which i think is a a6 head.

JD said that a a6 head flows more then a z6 just the z6 has a more aggressive high cam profile.
Im at a cross road
I have a z6 head
I have a a6 head (Useing cam for regrind in d15b2 head with new valves springs and retainers)

Im thinking of staying non v tec and going with a delta regrind 272 VS using the z6 head with d15b cam
Now this is going on my vitara build
IM very indecisive ???
Which=more powa

Re: powerband
 

they will be in boosted from basically the same



choose what you have




I have flow charts of both and no Im not posting them on the net I stopped giving away all my info awhile ago



d series heads flow crap to begin with so you need forced air to make the car worth a damn

Re: powerband
 

so from my understanding it really doesnt matter what head i were to use. it would depend on weather or not i want vtec or not. buuuuuut, when it comes to rev ranges, which head has the highest on stock valve terrain? an a6 can go to 9k, but what can a z6 go to? 8k?

Re: powerband
 

eh?

Re: powerband
 

d14 FTWFW!!

well, with a chink intake and exhaust, my DD sounds OK, but power, nadda :3

Re: powerband
 

a6 head will rev wel lpast what power you will make simple

Re: powerband
 

so a personal opinion from you would be to use an a6 head then, forget vtec, and take my chances with the high rpm power band? mind you this will be going on a y7 block with vitaras and eagles, possibly filled as well. but regardless an a6 is better then any vtec head when it comes to rpm range as i see it from your view point.

Re: powerband
 

your not going to make power up top




port work extensive
large cam
large plenum
large tb


causes rpm shift



hmt is nothing about this




your d will stop making power at 7500. Use the head that you have

Re: powerband
 

so a

A6 head with a delta 272 with springs and retainers
z6 intake mani with a port matched 62mm throttle body
makes no power?

Re: powerband
 

maybe 120 whp on a good day