thicker thicker pistons [B18C into DA Integra]

**awormofearth** · 07-09-06, 12:59 AM

I'm about to put a b18c1 into my 93 ls, but I wanted to do some internal engine work to the new motor before installing it. I dont plan on ever turbo-ing it, so raising the compression ratio sounds like a plan. The GSR starts at 10, and the tegra type R has 10.6. My friend was telling me about people who have gone to 12... I don't know enough about getting thicker pistons to know what all there is to consider. Should I stop at the tegra Type R's 10.6, or should I go higher? I've also heard that the civic type R's ratio is higher than the integras, but I dunno what it is. What do you think?

**sherwood** · 07-09-06, 02:07 AM

you can go higher, but the higher the compression ratio the harder it is to tune it to run on pump gas. i'd stick with something less than 12:1, it really depends on how much time you are willing to spend on trying to make it work well on pump gas and how much power you are looking for.

11-12:1 with headwork and some new cams i would imagine to be an ideal situation. you would subsequently need to increase the redline and also upgrade other misc. parts of the rotating assembly.

as far as the compression ratios go-- the gsr head will net you a higher compression ratio than a type-r head. so putting in JDM spec type-r pistons will probably push you to about 11.4:1

on a more personal note--
if you are going to do internal work you might as well go for forged internals and then boost. the time and money spent on headwork alone will equal the ammount of a good turbo setup, and dollor for dollar, horse for horse, the turbo setup, with new internals and tune time will net you major gains. not only that but they are fully scalable, allowing you to run pump gas and then still have a different ECU map for the track, or any other of the million ses for differnt powerbands.

**Provocateur** · 07-09-06, 02:09 AM

Paired with an aggressive pair of cams, a higher compression ratio will be a cood combination. You will need some sort of fuel management with raised compression since the fuel and ignition curves will change.

The P30 (JDM B16A) piston seems to be a good choice since it will raise your static compression ratio to around a pump gas friendly 11.5:1. The PCT (JDM B16B) piston will raise static compression to around 12:1 which will require a decent tune in order to run the car without detonation and you may run into valve-piston clearance problems with large cams.

**awormofearth** · 07-09-06, 01:25 PM

Paired with an aggressive pair of cams, a higher compression ratio will be a cood combination. You will need some sort of fuel management with raised compression since the fuel and ignition curves will change.

The P30 (JDM B16A) piston seems to be a good choice since it will raise your static compression ratio to around a pump gas friendly 11.5:1. The PCT (JDM B16B) piston will raise static compression to around 12:1 which will require a decent tune in order to run the car without detonation and you may run into valve-piston clearance problems with large cams.

What kind of HP gains could I expect if I ONLY did the b16a pistons?

Thanks

**urbanSTREETZ** · 07-25-06, 02:53 PM

higher compression = high octane gas = a lot of money
buy some skunk2 pro2 cams they kick ass
i put them in my 91 crx and gained like 70 hp my motor woke the fuck up and buy some cnc heads b ut there like 3grand which is expensive

**urbanSTREETZ** · 07-25-06, 02:56 PM

Originally Posted by awormofearth

What kind of HP gains could I expect if I ONLY did the b16a pistons?

Thanks

none really there just pistons nothing special about them if u want pistons find some dome pistons it will do more than stock

**Provocateur** · 07-25-06, 03:22 PM

Originally Posted by urbanSTREETZ

higher compression = high octane gas = a lot of money
buy some skunk2 pro2 cams they kick ass
i put them in my 91 crx and gained like 70 hp my motor woke the fuck up and buy some cnc heads b ut there like 3grand which is expensive

Originally Posted by urbanSTREETZ

none really there just pistons nothing special about them if u want pistons find some dome pistons it will do more than stock

Your advice sucks.

70hp with S2S2 cams? Right. Too bad Skunk2 states that with proper tuning, increased compression and a high flow manifold, the gains will be less than 25 hp.

**urbanSTREETZ** · 07-25-06, 03:45 PM

Originally Posted by Däs Schmoo

Your advice sucks.

70hp with S2S2 cams? Right. Too bad Skunk2 states that with proper tuning, increased compression and a high flow manifold, the gains will be less than 25 hp.

dude bullshit ill even email you the dyno sheet it raised my hp from 170 to about 250 with them 2 cams so i have no clue where u looked at but i know what the the fuck it did to my motor

**sherwood** · 07-25-06, 07:31 PM

there is no way in hell-- and you say you already had 170 to the wheels?

**urbanSTREETZ** · 07-25-06, 11:05 PM

Originally Posted by sherwood

there is no way in hell-- and you say you already had 170 to the wheels?

yea um maybe someone knows what he is doing to get hp out of his car

**sherwood** · 07-26-06, 11:38 PM

Originally Posted by urbanSTREETZ

yea um maybe someone knows what he is doing to get hp out of his car

i'm not saying you can't do it. but not in the way you suggested.

**Provocateur** · 07-27-06, 12:14 AM

Originally Posted by urbanSTREETZ

yea um maybe someone knows what he is doing to get hp out of his car

Where is the dyno sheet already? Just attach it as an image.

If it were that easy, why the did I waste all that time and money on a turbo setup when I could have bought a pair of cams and made just as much power? It isn't plausible, so stop playing it off like it is.

**dubcac** · 07-27-06, 12:19 AM

This guy just doesn't stop. 70hp from cams, writes service bulletins for acura, MTF is some magical fluid..what next?

**urbanSTREETZ** · 07-27-06, 10:55 AM

265 whp 170 tq
alright here is mhat ive done to my motor
b16 b block 13.2/1 comp
balanced crank 89mm
probe rods retanged for gsr bearings. drilled the stock oil holes like ls rods
gsr oil pump
wiseco 8.25cc pistons milled .050 off the top
Bdl block guard
custom breather kit
Competition head from PURE TUNING
supertech valves .5mm oversized flat faced
custom valve springs
stock retainers modified for big lift
skunk2 pro 2 cams
pro series cam gears
jg edlebrock intake manifold
68mm throttle body
precision 440cc injectors
hondata
carbon fiber velocity stack with 3" short ram
SMSP b19 1 piece header
msd sci ignition
nology wires

**urbanSTREETZ** · 07-27-06, 11:01 AM

**urbanSTREETZ** · 07-27-06, 11:02 AM

**urbanSTREETZ** · 07-27-06, 11:03 AM

alright it might not of been a 70 hp gain but it was atleast a 69 hp gain

**mberndt** · 07-27-06, 11:06 AM

Originally Posted by urbanSTREETZ

yea um maybe someone knows what he is doing to get hp out of his car

Oh, I see your mods, gee lemme guess, you paid someone to do all that?
Or did you just make it all up? LOL

IMO, I don't believe you cause of the way you talk. If you really had all that work, then why did you say you added a cam and got 70 HP. Did you forget about all of the other mods you had done?
Oh and I do know how a clutch works, I don't think you do...
Dude, seriously you make yourself look like a complete idiot, LOL

Just stop talking shit on here, cause obviously you don't have a clue what your talking about...
You make assenine comments and try and back them up with retarded school kid talk.

P.S. I'm not trying to insult you but seriously, GROW UP!

**urbanSTREETZ** · 07-27-06, 11:17 AM

piss off bitch im a big boy i can wipe my own ass

**Provocateur** · 07-27-06, 01:09 PM

It's cubic_inches N/A archrival.

**mberndt** · 07-27-06, 04:00 PM

Originally Posted by urbanSTREETZ

piss off bitch im a big boy i can wipe my own ass

Really? How old, 14??
Nice comeback LOLOLOLOL

Don't come on here like your some tuff guy, cause no one gives a shit...

OBVIOUSLY, from your demeanor, everyone on here can see what kind of idiot u are...

We all know that you wouldn't say that if I was in front of you LOL...

Stupid ass LOL

**dubcac** · 07-27-06, 06:48 PM

Originally Posted by Däs Schmoo

It's cubic_inches N/A archrival.

I was thinking they were buddies.

**Snoopy** · 07-28-06, 04:14 PM

Originally Posted by urbanSTREETZ

yea um maybe someone knows what he is doing to get hp out of his car

so you were making only 170hp with the mods you listed below? looks like someone DOESNT know what they're doing.

**hitman619** · 07-28-06, 09:03 PM

Internet Racer..

ftl

**TheOtherDave™** · 07-28-06, 10:52 PM

Originally Posted by urbanSTREETZ

piss off bitch im a big boy i can wipe my own ass

Oh really?

You posted a fully built motor (which I for one do not believe you own).. and claim that the cam was the sole part to deliver an additional 70 hp.

Then, after talking a big game, you post a question like this:
http://www.honda-acura.net/forums/sh...d.php?t=243780

Perhaps you need to tone down the ego and stop showboating with toys you don't have.

**dubcac** · 07-29-06, 12:52 AM

Why don't you swap that beast of a motor into your 86 Pony?

http://www.honda-acura.net/forums/sh...d.php?t=243753

**gsrcrazy1** · 04-02-07, 04:22 AM

im kinda late...but still funny as hell!!! lmao....

**silvic00** · 04-02-07, 10:27 AM

this "kid" is almost as bad as colem, best advice awormofearth dont listen to urbanstreetz....instead take advice from Provocateur, snoopy and sherwood