port and polished vtec heads

[Cheetah]

Hey guys. I like this board better.

On a mostly stock 1999 d16y8, what kind of gains can I expect from a nice port and polish job? Engine has 30k. on it.

Oh, there is just, one more thing...What have gains been like for you guys with SKunk2 manifold? Seat of pants and dyno.

thanks
CHEETAH

[Diablo]

I have a D16Y8 head that is ported and polished, 3 angle valve job and bigger valves, the car's not tuned yet, but you can feel a good differance, my guess would be 20 to 30 horese maybe, just a guess.

[12secrex]

20-30 is alot with out a good cam

[Calesta]

I gain about 10-15whp at the VTEC crossover on my engine... but's a high compression GSR block.

:D

The stock SOHC D blocks I've driven are very transparent through the VTEC crossover. You might be able to hear it if you have an intake installed, but it's not that noticeable.

[Cheetah]

Do you think a intake header exhaust and port and polished head and 3 angle valve job and crower stage 2 cam would help me feel vtec?

[Anonymous]

how about using a venom nitrous kit and have it activate right when vtec crossover happens...that outta make u feel it :lol:



One day, coming out of the mall, I saw two gay guys kissing in their car. I thought to myself, "Wow, thats the gayest thing I've ever seen!" but then I saw their car had altezzas.

[Calesta]

Just set your VTEC crossover really high, like 6000-6500rpm, then tune your non-VTEC lobes really crappy and tune your VTEC lobe really well. You'll be able to feel VTEC then.

See the blue lines? That's VTEC you can FEEL. :shock: :twisted:

http://www.hondaswap.com/~mike/sedan/2003-09-04_Civic_Dyno/dyno_main_med.jpg

[robtec]

port and polished head,crower stage 2 cam,i/h/e,pulleys,head milled .060

and yes i can now feel the vtec kick in,last time tested15.1@91mphwith out the cam and sliping clutch,now with the cam and still with the same clutch, it pulls harder than my brothers gsr that runs 14.6@95mph.so the vtec can be felt in a d series motor :D

[Cheetah]

IS milling expensive? I thought is was kinda a dangerous step to tak eon our civics because there already is not much valve-piston cleaance? ANd what does it raise compreesion to?

[Average Al]

isn't for every .03 milled it one point of comp up??
not sure though

Vtec in a d-series seem more to carry you powerband in to the higher revs.
My z6 really stops pulling around 6900 ish the last hundred revs are nothing. Shifting at a lower revs my car seem a bit fast too. Not hwy though..

[Toddnos]

Port yes..........polish no.............unless your polishing the exhaust ports only.........20 to 30 hp........pullease.........no way. You will need a fat cam to get those gains. BTW my y8 runs 14.59@96.7..........word!

[robtec]

my z6 head is milled .06 and the comp. ratio is 10:3, not very much.

it is true that the intake ports can not be polish to a mirror finish.when i buyed my head it came with a ultra polished ports and with this setup the car runs 16.0@86mph. then i fixed the ports my self with a spiral setup.it took me two days to do this.with the new ports the car run15.1@92mph

you can not port a head too much because it will lower the air velocity and flow of the head.my car should be running a little better,the problem that my head have is that the intake ports are mega huge, but neverthe less i am satisfied with the head :D

[Cheetah]

OK guys, if your running impressive numbers like 14.5 and stuff, let me know your set up as thats what I'm going for. Ideally, this cam is to help me make around 140-150 at the wheels. I dont want to have to change out pistons tho.

keep 'em comin.

[robtec]

OK guys, if your running impressive numbers like 14.5 and stuff, let me know your set up as thats what I'm going for. Ideally, this cam is to help me make around 140-150 at the wheels. I dont want to have to change out pistons tho.

keep 'em comin.

mi car have:ractive header pot matched 4-2-1,i will be buying a dc 4-1 soon,custom n1 style exhaust ,racing crank pulley, no power ster and no a/c,port and polish head(not a perfect one ,but it make some power)crower #2 cam,skunk 2 sproket and that is it

15.1@91mph with out the cam and sliping clutch,going to the dyno soon to fine tune

do not make the same mistakes that i made.buy a good header the first time youy buy one and take the head to a good shop, the best one you can find,do not mill the head, is best to raise the comp.ratio with pistons(arias work fine).if your clutch is not in good shape ,now is the time to buy a good one,try to buy the best bolt ons(aem,dc,skunk2, etc...)

good luck

any quetions,feel free to ask :D

[Cheetah]

Oops, I just bought a Ractice 4-2-1 to replace a old no name piece of sh*t. It helped some. My new y8 goes in as soon as I save enough to get it done. Maybe eventually I will try those arias pistons, but not yet. As for now I think I will take your advice, aem cold air, keeping my headers, and I already have full 2 1/4 in exhaust. Next step looks like skunk2 cam gear, crower #2 just like you, crower springs, (are retainers necessary?) and APexi vafc which I will use to tune on the dyno.

so when you put the crower #2 in your car and drove it...what did you notice? Low end? Top end?

thanks

[Anonymous]

BTW my y8 runs 14.59@96.7..........word! and my d15b2 n/a runs 13.2 BTW so :P i take it you havnt heard of my head design...port modification other that opening up...valve relocation...cam to my specs netted 70whp and ive got the dynos to prove it. anything is possible with the right amount of money or the right amount of time researching and doing the work urself.

[robtec]

with the crower cam good low end i did not feel any loss,top end is good specially after vtec.

"valve relocation...cam to my specs"

what???


"anything is possible with the right amount of money or the right amount of time researching and doing the work urself."

that's true :D

[Cheetah]

should I take it to any auto shop to put in a new cam and new valve springs? Will this cost a lot to install?

Dont want to do it myself < amatuer

[robtec]

tested the car on the dyno,only one run ,the shop was about to close and they give a break for only one try :cry: the car spun the wheels of the dyno to the tune of 138 hp(b16a power with a sohc :twisted: ) .i will go the next week to tune it righ. remember that the cam timing and ignition timing are not tuned yet.with this two things fine tuned i am hoping to have at least 150hp to the wheels(b18c power with a d16z6 :twisted: )

[Toddnos]

OK guys, if your running impressive numbers like 14.5 and stuff, let me know your set up as thats what I'm going for. Ideally, this cam is to help me make around 140-150 at the wheels. I dont want to have to change out pistons tho.

keep 'em comin.
DC 421 header
no cat/full 2.25 exhaust
short intake
aem fpr
big bore jg tb
JG 85vt35 cam
50 shot NOS by holley dry kit
Holley intank fuel pump

new stuff not track tested:
Apexi four to one header
RC balanced blueprinted injectors
ported head/3 angle valve job
milled thirty thou.
poted intake mani

[Toddnos]

BTW my y8 runs 14.59@96.7..........word! and my d15b2 n/a runs 13.2 BTW so :P i take it you havnt heard of my head design...port modification other that opening up...valve relocation...cam to my specs netted 70whp and ive got the dynos to prove it. anything is possible with the right amount of money or the right amount of time researching and doing the work urself. What the fuck are you talkin about?..............Bullshit!! No cam makes 70 HP.........Post your dynos or shut the fuck up..............Oh and BTW if i was on anything but street tires i woud a been in the 13s too :P

[Toddnos]

tested the car on the dyno,only one run ,the shop was about to close and they give a break for only one try :cry: the car spun the wheels of the dyno to the tune of 138 hp(b16a power with a sohc :twisted: ) .i will go the next week to tune it righ. remember that the cam timing and ignition timing are not tuned yet.with this two things fine tuned i am hoping to have at least 150hp to the wheels(b18c power with a d16z6 :twisted: ) spun the tires???? with 138 hp?????????did they even strap your car down????????

[robtec]

tested the car on the dyno,only one run ,the shop was about to close and they give a break for only one try :cry: the car spun the wheels of the dyno to the tune of 138 hp(b16a power with a sohc :twisted: ) .i will go the next week to tune it righ. remember that the cam timing and ignition timing are not tuned yet.with this two things fine tuned i am hoping to have at least 150hp to the wheels(b18c power with a d16z6 :twisted: ) spun the tires???? with 138 hp?????????did they even strap your car down????????

what the fuck are you talking about??spun the wheels of the dyno. you know ,the dyno uses wheels to measure hp. :twisted:

[Toddnos]

Didnt read your post close enough..........woops!! my bad.....thought you meant spun YOUR wheels on the dyno........seen it done before, but with like 1000 hp.

[robtec]

Didnt read your post close enough..........woops!! my bad.....thought you meant spun YOUR wheels on the dyno........seen it done before, but with like 1000 hp.
it fine :D

[Toddnos]

BTW my y8 runs 14.59@96.7..........word! and my d15b2 n/a runs 13.2 BTW so :P i take it you havnt heard of my head design...port modification other that opening up...valve relocation...cam to my specs netted 70whp and ive got the dynos to prove it. anything is possible with the right amount of money or the right amount of time researching and doing the work urself. post your timeslips or dyno chart..........

[Anonymous]

post your timeslips or dyno chart..........


robtec
ok i finaly notice this post was replied to after this jackass sends me a pm tellin me i better post sheets on this shit....next time ask nicley damnit ill be more than willing to share! http://www.digitalstar.com/dirty91crx/SmallImages/TN76380.JPGhttp://www.digitalstar.com/dirty91crx/images/69560.JPG im guessing youve never seen my sheets....quit bein a newb and stfu...be nice next time....i got more post counts on this board than you will have in the next 6 months.

[robtec]

post your timeslips or dyno chart..........


robtec
ok i finaly notice this post was replied to after this jackass sends me a pm tellin me i better post sheets on this shit....next time ask nicley damnit ill be more than willing to share! http://www.digitalstar.com/dirty91crx/SmallImages/TN76380.JPGhttp://www.digitalstar.com/dirty91crx/images/69560.JPG im guessing youve never seen my sheets....quit bein a newb and stfu...be nice next time....i got more post counts on this board than you will have in the next 6 months.

i did not send you a pm,ok man, now tell me how the hell you do this?? i know that it is possible to do that with a de series.i have seen all motor d in the region of 170, but 200. damn good numbers

please explain how you achieve this :?: from the graph down to the graph up??

[Anonymous]

not you man...toddnos....From: Toddnos
To: dirty91crx
Posted: Wed Sep 24, 2003 6:35 pm
Subject: Dynos.........timeslips to prove it?????????
Post your 70 HP cam gains NOW!!!!
Post our 13 sec all motor timeslips NOW!!!
Maybe you were Full of shit!!!!!!!!!!!!!

_________________

the dyno sheet i dunno if i mentioned was done on a 55 shot zex...yeah i didnt...oh well peeps make mistakes. anyways further info will be posted later...im just not ready to give them up yet.

[Anonymous]

not you man...toddnos....[quote]From: Toddnos
To: dirty91crx
Posted: Wed Sep 24, 2003 6:35 pm
Subject: Dynos.........timeslips to prove it?????????
Post your 70 HP cam gains NOW!!!!
Post our 13 sec all motor timeslips NOW!!!
Maybe you were Full of shit!!!!!!!!!!!!!

_________________

the dyno sheet i dunno if i mentioned was done on a 55 shot zex...yeah i didnt...oh well peeps make mistakes. anyways further info will be posted later...im just not ready to give them up yet. this asshole needs to read.....its not only done with a cam! read read read the post well b4 you send me pm's callin me a liar!

[robtec]

why man??? we are all friends here, we are all after the same goal :D

not you man...toddnos....From: Toddnos
To: dirty91crx
Posted: Wed Sep 24, 2003 6:35 pm
Subject: Dynos.........timeslips to prove it?????????
Post your 70 HP cam gains NOW!!!!
Post our 13 sec all motor timeslips NOW!!!
Maybe you were Full of shit!!!!!!!!!!!!!

_________________

the dyno sheet i dunno if i mentioned was done on a 55 shot zex...yeah i didnt...oh well peeps make mistakes. anyways further info will be posted later...im just not ready to give them up yet.

[sqmark]

Shit, would you just calm down.

I thought I was on Honda-tech for a minute then.


Dirty ( don't know your name, sorry) - Was that the B2 those numbers?

[robtec]

what do you mean????

"Shit, would you just calm down.

I thought I was on Honda-tech for a minute then. "

in all motor trim what times are you running?? and with nitro??
hp all motor??
hp nitro??

that is all i wanted to know

[Anonymous]

there was just a tad misunderstanding there for a moment....mah bad....any hooo that dyno is on n2o, n/a 178whp....13.2 1/4 n/a, never got a chance to run the n2o on the 1/4...why man??? we are all friends here, we are all after the same goal too much time was devoted to the design....im not giving up pics anytime soon. not untill early spring when i can get it patented and start selling head packages...keep in mind the cad can do the same for almost any head out there. its all about having the right equipment.

[robtec]

i understand, i got a few ideas of my own. me and my friend ,we are working on something :twisted:(something with the head, something with the ecu)

what compresion ratio are you running??
are you sure that tha gains in hp are because of the head desing alone??
please tell me ,what do you think??

[Anonymous]

just about......all in the head....with the si conversion and my chipped ecu and port job i was poutting down just about 108 whp.....then i built that head and she put down 178whp. and the bottom end is completly stock. good luck with what you guys are tryin over there.....it took me 6 monthts to design this head and almost another 6 months building it...it was a pain!

[robtec]

just about......all in the head....with the si conversion and my chipped ecu and port job i was poutting down just about 108 whp.....then i built that head and she put down 178whp. and the bottom end is completly stock. good luck with what you guys are tryin over there.....it took me 6 monthts to design this head and almost another 6 months building it...it was a pain!


daaamn all that time???i spend only two days giving my head a spiral port(and it works, went from 15.9 to 15.1 at the strip) and i was tired,you must have something special

when she put down 178?, it have installed the head with i/h/e and stuff right??

what kind of compresion you are running??

sorry for all the questions,i am trying to figure out what gains the head make alone :D

does your head look anything like this???

[Toddnos]

BTW my y8 runs 14.59@96.7..........word! and my d15b2 n/a runs 13.2 BTW so :P i take it you havnt heard of my head design...port modification other that opening up...valve relocation...cam to my specs netted 70whp and ive got the dynos to prove it. anything is possible with the right amount of money or the right amount of time researching and doing the work urself. Cam netted 70 hp????????? You are full of shit. ON Nitrous.......You forgot to mention that!! Oh and post count :roll: ..........who gives a shit???? Im registered on several boards and have large post counts, but who gives a fuck.
Its obvious you have a swollen head, and like to tell stories that leave out the most major details.............like oh yah.......BTW that 70 hp was with nitrous........oh and i dont want to give away any secrets yet.........I have heard your line of shit several times before.......whatever!~!!
Hey robtec we are after the same goals........but this guy is a lying piece of %^&*$#@!! IMO

[Anonymous]

BTW that 70 hp was with nitrous........oh and i dont want to give away any secrets yet.........I have heard your line of shit several times before.......whatever!~!! its obvious you do not read very well...let me guess 16yo high school drop out...then i built that head and she put down 178whp. and the bottom end is completly stock. read 178 after head build...now take a look at the dyno sheet which is on n2o...219whp. can you comprehend what that means? lemme try this for you read slowly and carefully. 178whp n/a, 219 whp on 55 shot of zex. now is that better for you? can you understand what im saying? hmmmn could you be from the hawaii forums? who gives a damn....either pick up the pace or get left behind

[Toddnos]

Either way dick..........NO CAM CAN PRODUCE 70 WHP!!! (On a sohc)
Plus your dynos dont list parts........who knows what your showing, and from what car.
The way you brag........well, that leads me to believe your full of it.
Some ITT tech guy with a CAD program........BIG whup :roll:

[cltchbrnr]

I'm gonna play both sides here, one that kind of power is very respectable and props to you. However it still seems a little off, what all you have done to the car, I have yet to hear of that kind of power without some major compression. However, if you are running carbs it may work??? there are too many variables for anyone to call this wrong. Remember bisi is (was) running tens on a dseries nonvtec. Bisi has said he found more potential out of the nonvtec heads than the vtec. Its all about how you combine your parts. Enough of my rambling though. But the real deal is that ther is no need to go ripping at each others throats over unknown facts.

[Anonymous]

Either way dick..........NO CAM CAN PRODUCE 70 WHP!!! (On a sohc)
Plus your dynos dont list parts........who knows what your showing, and from what car.
The way you brag........well, that leads me to believe your full of it.
Some ITT tech guy with a CAD program........BIG whup well i think its best i drop it here....need to keep the peace in here.

[robtec]

no, man, why??? i am reading everything you said, you must understand that it dificult to believe that your head make that much power, but i believe it is possible .keep on posting 8)

[Anonymous]

once im good and ready ill post pics of it.....then ill explain whats happening. be easier to keep the peace with pics of it all.

[Cheetah]

:hijacked:

sounds like a misunderstanding. We all want more power so back to figuring out how, right?

Think I can get a good port and polish for around 300 or so? ANybody have any hook ups? Some of you may know or have heard of I think its DH RACING frwquently on EBAY. Now, their shiznit looks extremely nice but I wonder if its worth $550 for a port and polished y8 head.

So, any thoughts? :honda:

[Anonymous]

$300 isnt bad at all depending on what kinda port job....from what ive hear dh does good work. i personaly havnt seen there work at all.

[robtec]

$300 isnt bad at all depending on what kinda port job....from what ive hear dh does good work. i personaly havnt seen there work at all.

search and find the best .the head is where all the power can be found, a great one will give a lot of hp,a mediocre one, well you know

try alaniz or someone with a good reputation.the head and the piece behind the steering wheel are the two more important aspects of your car :twisted:

[Anonymous]

very much so...the only way to gain hp is to get more air and fuel in....its really all in the head...then bore and stroke then piston design....

[robtec]

very much so...the only way to gain hp is to get more air and fuel in....its really all in the head...then bore and stroke then piston design....

that is right my "custom head" friend

larger its not better, you want to keep good air velocity in the ports.

esa es la q hay!!

[Cheetah]

Who is ALANIZ as mentioned above by ROBTEC? ( yo wassup robtec!!)

So what exectly have you guys head about DH RACING? Now, I'll be the first to admit I dont know what a properly port and polished head should look like but if you guys (and one girl!!) go to ebay and look them up (type port and polished civic) there stuff looks EXTREMELY nice. I mean SNoop would be proud of this thing. Its bling bling.
go ahead...go look
Now, with that kind of quality work, how much HP do you guys think I'm looking at on a otherwise stock (for arguments sake) 00 d16y8?? Although I will have aem cold intake, 4-2-1 header, and 65mm t/b and skunk2 intake mani.

Let me know! And dammit go look at their shit. Heres a link:
http://www.dh-racing.com click on head packages!!!

[SOHCcommando]

ALANIZ does the head work for Eric Augilar from ERICK's RACING, very good flow numbers.

[Toddnos]

Either way dick..........NO CAM CAN PRODUCE 70 WHP!!! (On a sohc)
Plus your dynos dont list parts........who knows what your showing, and from what car.
The way you brag........well, that leads me to believe your full of it.
Some ITT tech guy with a CAD program........BIG whup well i think its best i drop it here....need to keep the peace in here.
Yes.........peace. :wink: For now :D

[GudeCivic]

I'm a believer that a head can make big power. I've got a Gude Performance racing head package and it makes big power. Every mag. that's mentioned the package (Sport Compact Car, Super Street, Honda Tuning) all list 45 to 55 hp gains properly tuned.

[robtec]

I'm a believer that a head can make big power. I've got a Gude Performance racing head package and it makes big power. Every mag. that's mentioned the package (Sport Compact Car, Super Street, Honda Tuning) all list 45 to 55 hp gains properly tuned.


mnnn promoting??? :?:

[Cheetah]

YO GUDECIVIC

which head package do you have? motor?

I like head! :shock:

[robtec]

the one that gude advertise in the mags. have you ever seen them before??

[GudeCivic]

My head package includes a p&p head 3 angle valve job, port matched intake man., throtle body bored to 70 mm, hot cam, valves, springs, retainers, and a rechipped honda ecu.
This is on a 16z6. The package cost me $1500 after shipping and $500 for a core charge.

[robtec]

My head package includes a p&p head 3 angle valve job, port matched intake man., throtle body bored to 70 mm, hot cam, valves, springs, retainers, and a rechipped honda ecu.
This is on a 16z6. The package cost me $1500 after shipping and $500 for a core charge.

how much hp make your motor before and after the head??
how much does the head help you in the quarter mile department??

[Toddnos]

My head package includes a p&p head 3 angle valve job, port matched intake man., throtle body bored to 70 mm, hot cam, valves, springs, retainers, and a rechipped honda ecu.
This is on a 16z6. The package cost me $1500 after shipping and $500 for a core charge.
Lets see.......I paid:
Ported head+3 angle-185.00
Big Bore TB-180.00
Port match IM- 50.00
JG cam-185.00
ECU "chip"-150.00
I think the Gude package is a rip off, and I have also read reviews in mag that say the same!!!!

[GudeCivic]

I don't think it was a rip off. I've got a shit load more power, and for the price of a swap or turbo I think I went the better way.

[GudeCivic]

Robtec, I've never dynoed the car so I don't know. I do know that it's a good second quicker at the track.

[Toddnos]

I don't think it was a rip off. I've got a shit load more power, and for the price of a swap or turbo I think I went the better way.Thats cool.......I just figure you coulda done it for less, buying the
parts yourself and doing it yourself. Instead of paying for the "Gude" name...........

[evilfred]

I have P&P, milled head, DC 4-2-1 header, AEM CAI.
I cannot feel the vtec...I do hear it clearly but i dont feel it...:(

[Deck]

I have P&P, milled head, DC 4-2-1 header, AEM CAI.
I cannot feel the vtec...I do hear it clearly but i dont feel it...:(

You need tuning my good man! Its all in the tuning!

[robtec]

Robtec, I've never dynoed the car so I don't know. I do know that it's a good second quicker at the track.

a second is good, what times you were running before the head??

and evilfred if you want to feel the vtec you will have to buy a good cam!!

[Anonymous]

im sold on the head work, Ill do that first off on any project in the future. Its just nice and it really spools up nicely.

[evilfred]

Robtec, I've never dynoed the car so I don't know. I do know that it's a good second quicker at the track.

a second is good, what times you were running before the head??

and evilfred if you want to feel the vtec you will have to buy a good cam!!

yes i know and it's comming this spring with better exhaust... :P

[GudeCivic]

Last sumer before the head work and clutch with just a few bolt ons and rubber I was running high 16's (I'm a really shitty driver) while my friend was doing 15.8. (35psi and stock timing). This summer my best time was a 15.9. This was done also on 35 psi, valves out of adjustment, and timing at 0. So I figure a good driver could probably hit a 14.5.
I probably won't find out this summer though b/c the track will probably be closed in a few weeks and I work to close everynight on the weekend at my job. Mybe I can borrow a gtech and have my friend drive who is an amazing drive. I all depends on when I have to put the stock rubber on and if I get my valves adjusted to get an accurate time.

[GudeCivic]

[/quote]yes i know and it's comming this spring with better exhaust...


Where in the city is a good place to really fine tune a car. I can't find anyone that really knows the performance side of Hondas other than swaps, juice, and boost.

[evilfred]

Any dyno place with some experience should be able to carefully help you in your tunning....I would go and talke with them a bit before to see their attitude...

[d15dunebuggy]

I call BS on Mr. Anonymous. I'll believe it when I see it PERIOD. Don't talk it up before you can back it up.

[jimmyb34]

you bumped a 3 year old thread to call bs on someone who is banned????

[d15dunebuggy]

it was on page 1.

[MyblkVTEC]

yeah with a good port job 15 hp I would say....

[Dinosaur]

This cracked me up.


One day, coming out of the mall, I saw two gay guys kissing in their car. I thought to myself, "Wow, thats the gayest thing I've ever seen!" but then I saw their car had altezzas.

[commandoBear]

so....no one ever saw this "custom" head HAHA

[ryan89crx]

3 year old thread??

come on people...