i want to build up my d16z6, how should i do it

alright i got my head pretty much the way i would like it.
heres whats all done to that
Fully Ported & Polished Head, Ferrea custom Stainless Steal Valves (mushroom cut, undercut, and swirl polished), 5-angle Valve Job,WebCam Dual Valve Springs and Titanium Retainers, WebCam custom VTEC Camshaft, AEM Adjustable Cam Gear (Red) ,all Guides and Seals replaced new OEM Honda , Ported OEM Honda Throttle Body , Ported OEM Honda Intake Manifold (port matched to head and throttle body) , Reprogrammed P28 ECU (fuel cut-off at 9,000RPM)

no what for a bout $2500 could do to my block for that. i want my car to be some what reliable too.
thanks
nic

you need to get rid of the stock fuel pump that only puts out 195 and get one that puts out 255 then bord it out to a 2.0 get flat top pistons, titanium sleeves and rings. do that you looking at a big jump in hp because of what's done already. after that take it to a performance shop and have them upgrade you computer to dump a shit load of fuel. that should easily give you 75-100 extra hp

Originally posted by hondabitch
you need to get rid of the stock fuel pump that only puts out 195 and get one that puts out 255 then bord it out to a 2.0 get flat top pistons, titanium sleeves and rings. do that you looking at a big jump in hp because of what's done already. after that take it to a performance shop and have them upgrade you computer to dump a shit load of fuel. that should easily give you 75-100 extra hp

:rolleyes: ya.....do I even need to comment

$2500 could buy you a B16A motor swap my friend....

Unless u just wanna see what u can do w/ your SOHC...in which case I recommend a blueprint/balance, some higher-compression DOMED pistons, and stronger/lighter connecting rods....

I'm assuming you want to go All-Motor because of your headwork....

Also...a little bit of ECU tuning (A'PEXi V-AFC is pretty useful) But not to add fuel.

hondabitch - please....research. Just adding more fuel will not give you "75-100 horsepower". If you end up added too much you will run rich - that's NOT a good thing.

Well i dont know how u want to go all motor with a d16z6
Y did u do that to ur head is it milled :(
If so no Turbos for u :(
Which puts u out of the ball game if u ask me!

I agree with Vtec_Boi here. Dumping fuel into an engine will just make it run rich. The whole purpose and theory behind HP is getting as much fuel into the engine WITH AIR. Its perfect when you can get alot of an AIR/fuel mixture into that engine. Thats the purose of porting and polishing and what not. To get as much of that good stuff into the combustion chamber. Personally I would have gotten a B16a... Not like I don't already have one =) but you would have been better off with the DOHC Vtec. The built SOHC won't ever have as much power potential as a built DOHC.

Is swap fever catching again? The guy has a SOHC, he has done alot of work to it, and thats what he is working with, bottomline. Sure he could always get a B16, or aB18 or an H22, or he could just buy a car with a V8! The point is, there is always a bigger engine out there, if the guy wants to get the best out of what he has, I say more power to him....I just wish I could be of more help and provide him with some info! Off the top of my head, I could think of new rods and pistons to up the compression ratio. So, is anyone up to the task of helping? Obviously, getting alot out of a SOHC is going to be a challenge, but when all is said and done, you can be proud of the work youve done. Isn't that why we do this stuff? (I know thats a big part of it for me.)

Very True... Amen.

HALELULUI -GOD BLESSS




LONG LIVE SOHC---------HAHA :)



PS. PERSONALLY I HAD A B16A AND MY D16 WOULD SMOKE IT SILLY W/NO TURBOS ON THE B16

I am going to be sticking with the SOHC and the plan is to get 250HP to the wheels with the SOHC. It can be done and it will be done. I have seen N/A SOHC's run 12's I am going to be going F/I

thank god some ppl that think the sohc has some potential. but what im kinda am lookin for is what kinda pistons and such to the bottom would make my car almost bullet proof, and once again thank you all for you support.
nic

Originally posted by 94hatchsi
thank god some ppl that think the sohc has some potential. but what im kinda am lookin for is what kinda pistons and such to the bottom would make my car almost bullet proof, and once again thank you all for you support.
nic

Hmm, if you dont seem to be getting answers here, might I suggest checking out www.theoldone.com , they have alot of info on building up engines, even the D series. I know they focus alot on supercharging, but I believe they have NA applications as well.

The SOHC's are underrated in my opinion. In a way thats ok... Its fun to be different and smoke the Dual cams.

I have been SOHC ever since but I also build some dope Dual cams.
So what do you want out of the SOHC? Do you want to run 13s, 12s or even 11's All Motor.

Ok, lets build a motor for the general public. Taking into consideration, costs and reliability. With this in mind, I would shoot for a daily driven 13 sec SOHC VTEC or 13 sec non-VTEC SOHC.

When I build a setup like this for people, I start of with the headwork, cam, and if the cam needs it, performance valve train.
Polish the intake manifold and match port to the head and with the ported throttle body. Get the Basic I/H/E.
This setup will get you into the low 14s and is very reliable.

Now to get deep into the 13's. Lets do the bottom end. Since it wont be pushing HP near 200HP. The block can retain the stock rods. The only upgrade will be the pistons. An 11:1 to 11.5:1 compression piston would be good on the street on 91 octane(we have a b20/VTEC on 12:1 on 91 octane, runs fine... 1+ yrs already).
With this block and head setup, a little tuning with the cam and cam gear can take the SOHC VTEC or the Non vtec into the 13 sec range.

Not bad for a daily driven SOHC. Of course if you want to get faster, higher compression, overbore, more aggresive cam are all options for more speed.

I have been racing by 89 CRX SOHC nonvtec for 3 years. Its very consistent and is great for bracket racing. The setup is just headwork, cam, cam gear, I/H/E. and on the stock clutch and stock block. Been running 13.6's @99mph for 3 years and with 60k+ miles on the motor.

SO give the SOHC a chance... not everyone can do a swap, and its not necesarilly the answer to more speed. A dual cam/hydro swap into a CRX can cost at least $3000. Regular stock dual cam swaps usually only run in the mid 14's. you'll spend less on the the SOHC buildup and be way faster that them. Well... hope I can be of more help.
Feel free to email for any questions.

Wil www.exospeed.com

That was an awesome post. DO you know anything about F/I on a SOHC. That what I plan on doing myself. What do you guys think? I am going to be running a Greddy Turbo and also going to be doing a build-up. I am going to be sticking with the smaller turbo because it will spool up faster and I am going to be running prob 8pounds.

Since you've already done the headwork, might I suggest a JG Pro Series short block assy ($2295 w/ core exchange). Hot tanked & jet washed (to remove the sludge from the oil galleys), stock cylinder sleeves are removed in favor of thicker wall ductile iron sleeves. Then the whole thing is balanced, blueprinted, and assembled with ESP rods and SRP pistons (your choice of rings) w/ compression ratio's from 8.5:1 - 11:1. These shortblocks can handle up to 30psi of boost and are rated for a maximum output of 450hp, with the nescessary eng mgt and fuel system upgrades of course. You can even have the engine solid decked with a custom JG CNC block brace. You can check it all out at www.jgenginedynamics.com. When I get the money, thats where I'm taking my ZC. You can't get much more bullet proof than that.

I have built a number of bottom ends for All Motor as well as turbo enthusiasts.

The basic performance build up, will consist of upgraded pistons and rods for about $1100-1400. THat of course will include new bearings, new oil pump, new rings and the machining and labor for the whole block.

The next step will be a sleeved block. Sleeves are required for high boost or if you want to go with an overbore to your block to fit larger pistons. This setup is like the JG PRO block and usually runs at $2100-2200.

Its all a matter how hardcore you wanna get with the motor. A street low boost motor will be good with the basic block, while higher boost such as 12lbs+ will require the sleeved block for increased liability and safer boosting.

Wil www.exospeed.com

Well looking at the Dyno of the SOHC that was built up running 200 hp to the wheels and it was running 11.9 in the 1/4 was pretty awesome. And it is a daily driver. I can't wait until I get my car paid off.

well i know these questions get asked alot but with my head setup that i have shown in some before posts what do you think im capable of running with that. my plans are to run 13s
thanks

frostbyte... I don't an trying to understand what you are saying here. you said 200 Hp and the wheels doing 11.9 in the 1/4 mile? Please clairify for me please.

Wow, now we're getting some answers here! Im shooting for just 200 hp to the wheels with my SOHC, but Im not sure which turbo would get me there quicker and with less lag involved. Would the GReddy be up to the task, or should I opt for a slightly bigger APEXi kit, or even bigger the DRAG kit?

I am going to be sticking with the SOHC and the plan is to get 250HP to the wheels with the SOHC. It can be done and it will be done. I have seen N/A SOHC's run 12's I am going to be going F/I
Why do you think the SOHC is hondas top market although people have found that you have more horspower with the b16a or B engine they are at higher RPMS. The SOHC gives you better torque ratio to modify so yes you can modify the engine and car to nearly 350HP very rarely seen done 250 to 300 is more reasonable now I dont know much and my car is pretty much still stock but I have been doing my homework and well I'm willing to bet a D15B Supercharged with NOS will blow the B16 away and if I blow it up I can replace it for about $300 bucks try that for a b16.

frostbyte... I don't an trying to understand what you are saying here. you said 200 Hp and the wheels doing 11.9 in the 1/4 mile? Please clairify for me please.

Sorry what I meant to say is there is friend of mine that lives down in S. Cali that has a y8 block with a z6 head built running 11.9 all motor with 200 hp to the wheels. I must have been half asleep when I posted that lol. Don't matter now because I don't have a Honda anymore lol.

I race my car at the track occassionally. Right now I'm running high 10's and low 11's with my 93 D16Z6. Basic mods : Cold Air Intake, Exhaust System, Fuel Rail with Manifold, but missing key ingredient, HEADERS! I would like to know would a 4-2-1 or a 4-1 set be better for drag. My power band is 4,500 - 6,500 RPMS. Help. :banghead:

10's and 11's in the 8th

exospeedAMcrx. that post alone makes me wanna get a sohc. lol

Great post! BUt i gotta ? ANY tips on a F/I SOHC d16y8 running 11's i have the money and the time just need to find what all i need to do it

I race my car at the track occassionally. Right now I'm running high 10's and low 11's with my 93 D16Z6. Basic mods : Cold Air Intake, Exhaust System, Fuel Rail with Manifold, but missing key ingredient, HEADERS! I would like to know would a 4-2-1 or a 4-1 set be better for drag. My power band is 4,500 - 6,500 RPMS. Help. :banghead:

In your case in all honesty, I'd recommend the Bisimoto (http://www.exospeed.com/engine/bisimoto.htm) headers. They were designed for max gains going down the strip.

For a SOHC motor, you could easily produce horsepower with the smaller GReddy turbocharger. There is no need to go over board and buy a larger turbocharger. If the GReddy set up isn't good enough for you, simply remove the wastegate that they have stock on their turbo.

For a SOHC motor, you could easily produce horsepower with the smaller GReddy turbocharger. There is no need to go over board and buy a larger turbocharger. If the GReddy set up isn't good enough for you, simply remove the wastegate that they have stock on their turbo.

Get a greddy turbo if you want to run low 15's to maybe mid 14's

seems like you already have most done to your motor so it seems you my swell go with the high compression pistons stroke rods if you want more hp then that my swell start boring the cylinder and go with oversize pistons you can do various things for internal power honestly i got a d16y8 i smoke b16s all day i would never get one so those who are saying that are wrong the only thing better about a b16 is more torque no more hp i happen to be getting ready to drop a d16z6 in also so if anyone has any feed on this also like do i need to change anything from the wiring harness or the ecu for the z6 i would imagine its the same but not sure keep me posted thanks

hey hondaman3773,

I don't know much about all this yet. I just bought a 95 Hatch with the z6 so Iv'e been reading up and I'm still getting it down but, my understanding is the only real diffrence in the y8 and z6 is in the head. The y8 is better of 2hp 1lb more "not that much" but, if your current head is still good you would do better by putting the y8 head on the z6 block. I read it's the best D series SOHC combo. Plus you could use all your current wiring.

Hope that helps.