In the middle of building my 1991 si hatchback sohc and wondering who else is running a SOHC setup.

This is a "daily driven" build so it will consist for a tune to run 92 octane.

 

Turbo. You'll thank me in the morning.

 

the setup on my sig should be dailly drivin if we using thicker head gasket and running 12.5 :1 cr

 

or this 230hp sohc vtec also would be a good dailly driving with lower cr https://honda-tech.com/zerothread?id=1313920

 

^^^^^^^^^

that is amazing na sohc power! what is the bore size when using those gallant pistons?

 

I rock a SOHC. But only a stock dp D15 in my sedan. But one day I'll get around to building something a little more peppy than what she's got now. Nice to hear the sohcs getting some representation!

 

i'm parting out my monster sohc car, if you know anybody interested in some parts. Bisi race header jet coated $650, S20 tranny with SRR 4.7FD, 4th gear change out, act 6puck clutch,act extreme pressure plate, faactory lightend flywhell $450 for all tranny stuff. Rolling chassis 93 hatch with 1 gallon fuel cell, msd 6al baster coil,msd lauch controler, auto meter 5 inch monster tach, auto meter oil/water gauge, 1050 lb drag springs in the rear, adjustable coil overs all for $1000. JG 79mm race SOHC monster motor 228HP complete setup with Hondata S100 for $3500 with extra comtic 79mm headgasket.

 

I also have a 79mm d16a6 block and head. Gude Gorilla cam & headwork, Isky springs, stock retainers, Cometic 79mm 0.030" HG, around 13:1 compression, 12 gallon fuel cell, -8an lines, Canton Accusump, Dual Dcoe 45 webers with Pipercross KK600 foam filters, Holley "red" fuel pump, Mallory 140 filter and Holley low pressure FPR, Electromotive HPX ignition, Moroso Ultra 40 race wires, Odyssey PC 545 MJ battery (for track) Gude 4-1 header (street), Hitech Tri-Y side exit race header (track), Tsudo exhaust (good exhaust!!!) Just finished street tuning it, have to get to a dyno.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by d16dcoe45 &raquo;</TD></TR><TR><TD CLASS="quote">I also have a 79mm d16a6 block and head. Gude Gorilla cam & headwork, Isky springs, stock retainers, Cometic 79mm 0.030" HG, around 13:1 compression, 12 gallon fuel cell, -8an lines, Canton Accusump, Dual Dcoe 45 webers with Pipercross KK600 foam filters, Holley "red" fuel pump, Mallory 140 filter and Holley low pressure FPR, Electromotive HPX ignition, Moroso Ultra 40 race wires, Odyssey PC 545 MJ battery (for track) Gude 4-1 header (street), Hitech Tri-Y side exit race header (track), Tsudo exhaust (good exhaust!!!) Just finished street tuning it, have to get to a dyno. </TD></TR></TABLE>

That's what I'm talking about. You got pics or video ?

 

I could send some pics to your email if you are interested. Its a real neat car, I think.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by d16dcoe45 &raquo;</TD></TR><TR><TD CLASS="quote">I also have a 79mm d16a6 block and head. Gude Gorilla cam & headwork, Isky springs, stock retainers, Cometic 79mm 0.030" HG, around 13:1 compression, 12 gallon fuel cell, -8an lines, Canton Accusump, Dual Dcoe 45 webers with Pipercross KK600 foam filters, Holley "red" fuel pump, Mallory 140 filter and Holley low pressure FPR, Electromotive HPX ignition, Moroso Ultra 40 race wires, Odyssey PC 545 MJ battery (for track) Gude 4-1 header (street), Hitech Tri-Y side exit race header (track), Tsudo exhaust (good exhaust!!!) Just finished street tuning it, have to get to a dyno. </TD></TR></TABLE>

bro, how is the hi-rev d15 project progress?? tell me some.
john, the gallant bore was 78.4 in my sohc nonvtec, and the sohc vtec was running 78.9mm

 

Oh, that real high-compression (18:1) is still going to be done--I have a bare d16a6 block sitting here that I am going to use. I have just been working on my current 1.8--getting it running well. Also, Jt-sport, what was the compression of your sohc-vtec motor? And what did you do with the DCO/sp 50--since you were running 48s on the sohc-vtec?

 

ITB'd D16Z6 12.5:1 compression motor in a 89 gutted hatchback. Here's a video:
http://www.youtube.com/?v=P5IT0qK6Djo

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by d16dcoe45 &raquo;</TD></TR><TR><TD CLASS="quote">Oh, that real high-compression (18:1) is still going to be done--I have a bare d16a6 block sitting here that I am going to use. I have just been working on my current 1.8--getting it running well. Also, Jt-sport, what was the compression of your sohc-vtec motor? And what did you do with the DCO/sp 50--since you were running 48s on the sohc-vtec?</TD></TR></TABLE>
did you going to run 90mm stroke or d15 crank??
no issue for the dcoe 50 or 48, acctually the sohc vtec was my costumer car, thats not my car, mine was the sohc non vtec with 14ish CR (im forgot exact number), and the only carb i have was the 50mm. i never dynoed, wich carb work better from 45 to 50 on 1.7-1.8L form, because i ussually only switch 45mm to 48mm for the sohc vtec on the track but i didnt notice any significant change in ET.

 

Ideally, what I would like to do is run like an 84mm crank with a long rod in the 1.6 block--with the 1.6 main bearing size. With a 79mm bore, and the compression.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by djsgtrip &raquo;</TD></TR><TR><TD CLASS="quote">ITB'd D16Z6 12.5:1 compression motor in a 89 gutted hatchback. Here's a video:
http://www.youtube.com/?v=P5IT0qK6Djo</TD></TR></TABLE>

i dont understand why if it has itb's it has an air horn sticking out the headlight? and man that thing needs a better final drive, he barely got into fourth!lol
i bet with a good tranny that car would run mid 12's for sure

 

Th airhorn was just to route some extra air into the back of the engine. I'm not sure about it's effectiveness, but I had the pipe and horn laying around, so I gave it a shot. Yeah, a short FD would help a lot, but it's outta my budget since it's like $900 for a cable D tranny. OUCH!! I fully plan on breaking 12's this spring with a few minor mods.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by djsgtrip &raquo;</TD></TR><TR><TD CLASS="quote">Th airhorn was just to route some extra air into the back of the engine. I'm not sure about it's effectiveness, but I had the pipe and horn laying around, so I gave it a shot. Yeah, a short FD would help a lot, but it's outta my budget since it's like $900 for a cable D tranny. OUCH!! I fully plan on breaking 12's this spring with a few minor mods.</TD></TR></TABLE>
bro would you like to tell the complete setup of those motor, and car.?
D Series Lover here

 

A6 block, P29 STD bore pistons, stock rods ....about 12.5:1 compression
Z6 head, ported and polished, Crower 3 cam, Zex springs, Omni-power valves
CBR 954RR 42mm ITB's (13.1 pass a year ago)
CBR 1000RR 44mm ITB's (recently)
Skunk2 I/M (ported) w/ 64mm throttle body (now)
Generic Ebay 4-1 header w/2.5" collector
UR pulley
PM6 chipped ECU (turboedit)
V-AFC
and a bunch of bolt-on's
Chassis is 89 STD hatch that weighs about 1950-2000 w/driver at the track.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by djsgtrip &raquo;</TD></TR><TR><TD CLASS="quote">A6 block, P29 STD bore pistons, stock rods ....about 12.5:1 compression
Z6 head, ported and polished, Crower 3 cam, Zex springs, Omni-power valves
CBR 954RR 42mm ITB's (13.1 pass a year ago)
CBR 1000RR 44mm ITB's (recently)
Skunk2 I/M (ported) w/ 64mm throttle body (now)
Generic Ebay 4-1 header w/2.5" collector
UR pulley
PM6 chipped ECU (turboedit)
V-AFC
and a bunch of bolt-on's
Chassis is 89 STD hatch that weighs about 1950-2000 w/driver at the track.</TD></TR></TABLE>

what kind of power are you putting down? I'm about to be running a d16b5 setup with 12.5:1cr

 

thats what im talking bout. SOHC POwer.

 

i like seeing that also Wil, to SOHC power

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by djsgtrip &raquo;</TD></TR><TR><TD CLASS="quote">A6 block, P29 STD bore pistons, stock rods ....about 12.5:1 compression
Z6 head, ported and polished, Crower 3 cam, Zex springs, Omni-power valves
CBR 954RR 42mm ITB's (13.1 pass a year ago)
CBR 1000RR 44mm ITB's (recently)
Skunk2 I/M (ported) w/ 64mm throttle body (now)
Generic Ebay 4-1 header w/2.5" collector
UR pulley
PM6 chipped ECU (turboedit)
V-AFC
and a bunch of bolt-on's
Chassis is 89 STD hatch that weighs about 1950-2000 w/driver at the track.</TD></TR></TABLE>

pics?

 

Here's some pics guys so you get an idea of some block setups. All Motor Style!!
These particular motors are using D16A6 heads also.

* D16A6 block with P29 pistons





* D16A6 block: Exospeed Sleeved, Off-shelf 75.5mm Arias pistons 10.5:1


* D16A6 block: Exospeed Sleeved, Exospeed/Arias Custom design piston 13:1+ 78mm

 

* D16A6 block with P29 pistons



Nice.