d15b7 possible build - D-series.org

2384207 · 07-02-2009, 08:09 PM

so i just swapped my d15b7 for a jdm d15b
i wanna build the old d15b7
but i really dont know what direction to go in
id like somwhere close to 200whp
turbo would be great but idk where to start for rods
any opinions/ help would be greatly apreciated
thanks guys

mightyjoecivic · 07-02-2009, 08:24 PM

i got a fact for ya....building the D15B over the B7 WILL yield more power easier than the B7. I, personally, would take the B7 head and put it on the D15B block. Thats just me cause i think vtec is :tu: . Rods are a snap because they are the same as the D16 rods.

DemoFly · 07-02-2009, 08:30 PM

d15b blocks match up with b7 heads?

Oh...this opens up a whole new world for me...

2384207 · 07-02-2009, 08:31 PM

yeah i know rods snap at like 165 170 ish
ya know how guys put b16 heads on b20 botom ends and get good high cr builds
is this possible with a d15 head on a d16 block ?

mightyjoecivic · 07-02-2009, 08:36 PM

Quote:

Originally Posted by DemoFly

d15b blocks match up with b7 heads?

Oh...this opens up a whole new world for me...

All sohc D15/D16's are interchangeable....for the most part, except the D16A1 which is dohc.

Quote:

Originally Posted by 2384207

yeah i know rods snap at like 165 170 ish
ya know how guys put b16 heads on b20 botom ends and get good high cr builds
is this possible with a d15 head on a d16 block ?

i didnt mean that the rods will snap, I meant that finding rods for the D15B in the aftermarket is easy and cheaper than D15B7/B2/B6/B8 and so on. And again, you can put an A6/B7(these 2 are the same minus the cams)/B2/B6/B8/Z6/Y8/Y7/Zc(sohc) heads will go on any sohc block.

2384207 · 07-02-2009, 08:42 PM

i know i can swap heads and such i was wondering if i did a high cr build would a smaller head help or not really since its only .1 difference?

mightyjoecivic · 07-02-2009, 08:44 PM

what do you mean smaller head? And that .1 can go both ways with a different headgasket or milling of the head. Im using a A6/B7 in my high compression build, but then again im basically building a high comp D16A6 motor.

The A6/B7 head has a bigger combustion chamber than the p08 head(D15B, Z6), so it will lower the compression a little. But nothing milling the head cant fix.

2384207 · 07-02-2009, 08:47 PM

by smaller head i just mean a head off of a smaller liter motor
so pretty much i should just get a 1.6 block build that and put my b7 head on it ?

mightyjoecivic · 07-02-2009, 08:58 PM

First off, im under the impression that you have a D15B7 thats gonna be replaced with a D15B....is that right? Second, the head that is on the D15B IS a D16z6 head. Third, the size of the motor whether it be 1.5 or 1.6 does not impact the size of the head(only for the sohc D15/D16's). Yes, you can take a 1.6 block and stick the D15B7 head onto it with no problems.

If you choose the B7 to build-- you will be very limited on rod selection. Basically i would go N/a with the B7, but you can do a budget turbo build running low boost like 5-6psi with the stock rods.

If you choose the D15B to build-- you have endless ways to build, buy parts and it be a strong build. That motor would be awesome N/a because of the better rod to stroke ratio, that will give you higher rpm limits. Its also a great motor to boost too.

2384207 · 07-02-2009, 09:01 PM

yes sort of
the d15b is in my car curently
i dont really wana touch that motor
but i do wana do some sort of build with the d15b7 i have sitting in my garage
turbo is expensive and na is just bad ass but i just dont really know where to start

mightyjoecivic · 07-02-2009, 09:05 PM

so your running the D15B. Ok, well whats your budget? Going N/a is great. Although the turbo guys will chime in saying that its the fastest way to go slow.

Take a look at my build thread, the dyno numbers are for the B7 without tuning. I tuned it myself a while back and it feels like its around the 110-115whp mark now.

2384207 · 07-02-2009, 09:07 PM

dont really know my budget
not super expensive just something to keep me busy
and swap in later down the road
what kinda numbers you throwing down with ur setup or hoping to throw down ?

mightyjoecivic · 07-02-2009, 09:12 PM

with the high comp A6 im hoping for around 160-175whp. Im also gonna add a 150 shot of nitrous to it as well. That should make 300whp+ for me. :td:

Just do your basic Intake, header, exhaust first. Then later get a better intake manifold like the Z6 or Y8 or aftermarket like skunk2. Then i'd look into a cam swap. If you dont want to shell out a bunch of money for an aftermarket cam, find the D16A6 cam and put it in the B7. Then you will want a tune and all that should net you around 120-130whp. That def will be a fun motor.

2384207 · 07-02-2009, 09:14 PM

hmmmmm considering i have 125 as of right now with the d15b
idk bout that
what would u sugest for rods if i were to turbo it ?

slo_eg8 · 07-02-2009, 09:18 PM

Quote:

Originally Posted by 2384207

hmmmmm considering i have 125 as of right now with the d15b
idk bout that
what would u sugest for rods if i were to turbo it ?

somebody in here is making i/h beam rods for the b7.....wait I guess lol

2384207 · 07-02-2009, 09:20 PM

yeah i read that b4 u know if they have like a site or something ?
idk i dont wanna just leave my name somewhere and hope it works out
any info gratefully apreciated

mightyjoecivic · 07-02-2009, 09:26 PM

your 125hp is at the motor, not the wheels. You are making the same whp as my untuned B7 did....right at 98-100whp. The hp numbers i told you are at the wheels, which makes it around 160hp at the motor for the B7 setup. Rods are available for the B7 through Fjdistributors.

Just do some reading up here, theres tons of builds.

2384207 · 07-02-2009, 09:30 PM

yeah my bad sorry
thanks for the info tho
ill keep you guys up to date on what i decide to do

d15b+tmike · 07-05-2009, 11:29 AM

hey buddy, i have a d15b which im also tuning up in the uk!

ile be keeping an eye on this thread, the info on this site is mind blowing, after all ive read it would seem the d15b is the best motor to build up and use, i was just planning on blowing mine up and getting a d16y? would seem not to be such a good idea right now
be good to share build information,what you say?

2384207 · 07-07-2009, 10:01 PM

hey man
i honestly think the d16z6 is still the best in my oninion
my plan as of now is to build a d16z6 head put it on the d15b7 block
maybe some nos down the road
the head is going to be fully built if all goe well
now i just gotta start saving for a head to build
and a cam and retainers and springs and much more

07-02-2009, 08:09 PM	#1 (permalink)
2384207 Member iTrader: (0) Join Date: Feb 2009 Posts: 74 Rep Power: 2	d15b7 possible build so i just swapped my d15b7 for a jdm d15b i wanna build the old d15b7 but i really dont know what direction to go in id like somwhere close to 200whp turbo would be great but idk where to start for rods any opinions/ help would be greatly apreciated thanks guys

07-02-2009, 08:24 PM	#2 (permalink)
mightyjoecivic All powerful D-series member iTrader: (12) Join Date: May 2007 Location: Portsmouth, Va. Posts: 3,819 Rep Power: 16 View My Photo Gallery	i got a fact for ya....building the D15B over the B7 WILL yield more power easier than the B7. I, personally, would take the B7 head and put it on the D15B block. Thats just me cause i think vtec is :tu: . Rods are a snap because they are the same as the D16 rods. __________________ Insert E-jeezy-fied sig pic here 1993 Ford Cobra-- Bone stock Current project- pay off bills

07-02-2009, 08:30 PM	#3 (permalink)
DemoFly D-Series cadet iTrader: (1) Join Date: Jun 2009 Location: Norf-Wess Posts: 395 Rep Power: 2 View My Photo Gallery	d15b blocks match up with b7 heads? Oh...this opens up a whole new world for me... __________________ YOU DON'T HAVE TO POST I hate cars, but I love engines.

07-02-2009, 08:44 PM	#7 (permalink)
mightyjoecivic All powerful D-series member iTrader: (12) Join Date: May 2007 Location: Portsmouth, Va. Posts: 3,819 Rep Power: 16 View My Photo Gallery	what do you mean smaller head? And that .1 can go both ways with a different headgasket or milling of the head. Im using a A6/B7 in my high compression build, but then again im basically building a high comp D16A6 motor. The A6/B7 head has a bigger combustion chamber than the p08 head(D15B, Z6), so it will lower the compression a little. But nothing milling the head cant fix. __________________ Insert E-jeezy-fied sig pic here 1993 Ford Cobra-- Bone stock Current project- pay off bills

07-02-2009, 08:58 PM	#9 (permalink)
mightyjoecivic All powerful D-series member iTrader: (12) Join Date: May 2007 Location: Portsmouth, Va. Posts: 3,819 Rep Power: 16 View My Photo Gallery	First off, im under the impression that you have a D15B7 thats gonna be replaced with a D15B....is that right? Second, the head that is on the D15B IS a D16z6 head. Third, the size of the motor whether it be 1.5 or 1.6 does not impact the size of the head(only for the sohc D15/D16's). Yes, you can take a 1.6 block and stick the D15B7 head onto it with no problems. If you choose the B7 to build-- you will be very limited on rod selection. Basically i would go N/a with the B7, but you can do a budget turbo build running low boost like 5-6psi with the stock rods. If you choose the D15B to build-- you have endless ways to build, buy parts and it be a strong build. That motor would be awesome N/a because of the better rod to stroke ratio, that will give you higher rpm limits. Its also a great motor to boost too. __________________ Insert E-jeezy-fied sig pic here 1993 Ford Cobra-- Bone stock Current project- pay off bills Last edited by mightyjoecivic; 07-02-2009 at 09:01 PM.

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07-02-2009, 08:31 PM	#4 (permalink)
2384207 Member iTrader: (0) Join Date: Feb 2009 Posts: 74 Rep Power: 2	yeah i know rods snap at like 165 170 ish ya know how guys put b16 heads on b20 botom ends and get good high cr builds is this possible with a d15 head on a d16 block ?

07-02-2009, 08:42 PM	#6 (permalink)
2384207 Member iTrader: (0) Join Date: Feb 2009 Posts: 74 Rep Power: 2	i know i can swap heads and such i was wondering if i did a high cr build would a smaller head help or not really since its only .1 difference?

07-02-2009, 08:47 PM	#8 (permalink)
2384207 Member iTrader: (0) Join Date: Feb 2009 Posts: 74 Rep Power: 2	by smaller head i just mean a head off of a smaller liter motor so pretty much i should just get a 1.6 block build that and put my b7 head on it ?

07-02-2009, 09:01 PM	#10 (permalink)
2384207 Member iTrader: (0) Join Date: Feb 2009 Posts: 74 Rep Power: 2	yes sort of the d15b is in my car curently i dont really wana touch that motor but i do wana do some sort of build with the d15b7 i have sitting in my garage turbo is expensive and na is just bad ass but i just dont really know where to start

07-02-2009, 09:05 PM	#11 (permalink)
mightyjoecivic All powerful D-series member iTrader: (12) Join Date: May 2007 Location: Portsmouth, Va. Posts: 3,819 Rep Power: 16 View My Photo Gallery	so your running the D15B. Ok, well whats your budget? Going N/a is great. Although the turbo guys will chime in saying that its the fastest way to go slow. Take a look at my build thread, the dyno numbers are for the B7 without tuning. I tuned it myself a while back and it feels like its around the 110-115whp mark now. __________________ Insert E-jeezy-fied sig pic here 1993 Ford Cobra-- Bone stock Current project- pay off bills

07-02-2009, 09:07 PM	#12 (permalink)
2384207 Member iTrader: (0) Join Date: Feb 2009 Posts: 74 Rep Power: 2	dont really know my budget not super expensive just something to keep me busy and swap in later down the road what kinda numbers you throwing down with ur setup or hoping to throw down ?

07-02-2009, 09:12 PM	#13 (permalink)
mightyjoecivic All powerful D-series member iTrader: (12) Join Date: May 2007 Location: Portsmouth, Va. Posts: 3,819 Rep Power: 16 View My Photo Gallery	with the high comp A6 im hoping for around 160-175whp. Im also gonna add a 150 shot of nitrous to it as well. That should make 300whp+ for me. :td: Just do your basic Intake, header, exhaust first. Then later get a better intake manifold like the Z6 or Y8 or aftermarket like skunk2. Then i'd look into a cam swap. If you dont want to shell out a bunch of money for an aftermarket cam, find the D16A6 cam and put it in the B7. Then you will want a tune and all that should net you around 120-130whp. That def will be a fun motor. __________________ Insert E-jeezy-fied sig pic here 1993 Ford Cobra-- Bone stock Current project- pay off bills

07-02-2009, 09:14 PM	#14 (permalink)
2384207 Member iTrader: (0) Join Date: Feb 2009 Posts: 74 Rep Power: 2	hmmmmm considering i have 125 as of right now with the d15b idk bout that what would u sugest for rods if i were to turbo it ?

07-02-2009, 09:20 PM	#16 (permalink)
2384207 Member iTrader: (0) Join Date: Feb 2009 Posts: 74 Rep Power: 2	yeah i read that b4 u know if they have like a site or something ? idk i dont wanna just leave my name somewhere and hope it works out any info gratefully apreciated

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

07-02-2009, 09:26 PM	#17 (permalink)
mightyjoecivic All powerful D-series member iTrader: (12) Join Date: May 2007 Location: Portsmouth, Va. Posts: 3,819 Rep Power: 16 View My Photo Gallery	your 125hp is at the motor, not the wheels. You are making the same whp as my untuned B7 did....right at 98-100whp. The hp numbers i told you are at the wheels, which makes it around 160hp at the motor for the B7 setup. Rods are available for the B7 through Fjdistributors. Just do some reading up here, theres tons of builds. __________________ Insert E-jeezy-fied sig pic here 1993 Ford Cobra-- Bone stock Current project- pay off bills

07-02-2009, 09:30 PM	#18 (permalink)
2384207 Member iTrader: (0) Join Date: Feb 2009 Posts: 74 Rep Power: 2	yeah my bad sorry thanks for the info tho ill keep you guys up to date on what i decide to do

07-05-2009, 11:29 AM	#19 (permalink)
d15b+tmike n00b iTrader: (0) Join Date: May 2009 Posts: 6 Rep Power: 0	hey buddy, i have a d15b which im also tuning up in the uk! ile be keeping an eye on this thread, the info on this site is mind blowing, after all ive read it would seem the d15b is the best motor to build up and use, i was just planning on blowing mine up and getting a d16y? would seem not to be such a good idea right now be good to share build information,what you say?

07-07-2009, 10:01 PM	#20 (permalink)
2384207 Member iTrader: (0) Join Date: Feb 2009 Posts: 74 Rep Power: 2	hey man i honestly think the d16z6 is still the best in my oninion my plan as of now is to build a d16z6 head put it on the d15b7 block maybe some nos down the road the head is going to be fully built if all goe well now i just gotta start saving for a head to build and a cam and retainers and springs and much more

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