installed HIGH compression pistons OMG

[Thomas91169]

yeah you need a camera that runs at all times the car is on, thats directly facing you, so when you hit 15psi on high compression internals and you hear a massive explosion and sounds of shards of metal going through the motor, we can see your "oh shit" face.

 

[armandovivoni]

! buajaja you just want to laugh when I break something. but the camera would be facing forward looking at the street,gauges,boost, EGT's, oil pressure,rich lean.

if it breaks well I would have to say IT WAS FUN WHILE IT LASTED jajaja seriouly having no turbo lag for street driven is much more fun than having to wait til 4k rpm for boost

 

[notractiongst]

I seriously doubt that your friends b18 has stock internals.

if he has stock internals(high comp pistons) and has 400hp that means that what I did with high compression pistons will work just fine. hmmm tell your friend to tell you the truth

wow you must not be very bright... the car makes 400 WHp @ 21 PSI ON 112 octane.....I know who built the car...they also boosted a S2000 on a stock motor and made 400 WHP...www.inlinepro.com...read for yourself ...and a b18 is not 11:1 Also the motor has a thicker headgasket wich lowers compression a tad... on pump gas the car only runs 14 psi...very feasible...but not to someone like yourself who knows nothing..and if your goign to get "Street tuned " for 15 psi with that compression...why cant a honda?

 

[DSMJim]

Some of you guys need to get your head out of your asses, Tones of hondas make 400whp on the stock bottom end, yeesh, where the hell have you been? There are street N/A guys with 12:1 going 11's too so don't think that just because you have a 4G63 your higher on the pecking order. Some of the Honda guys I hang with have N/A setups and will eat up half the shit talkers in this tread with turbocharged cars. A 16G and BOV doesn't make you a honda killer anywhere but places where there are no fast cars.

I have personally tuned a completly stock B18C with a Drag turbo kit to 10psi on pump gas and it make 319whp on a fully stock motor using a AFC. Honda's unlike DSM's however can make upwards of 500whp on the stock trans with only welding the diff.

You will be able to run 10:1 all day long without breaking squat, thats not high. Shit guys in the NHRA Sport Compact series run 12:1 with 40psi of boost so I'm pretty sure a street car can run 10:1 all day long with 10-15psi and not break anything.

 

[gixrman]

Alot also has to do with compression chamber design, piston speed, materials used blah blah blah. Its all about controlling the flame front. Don't evos run 9:1, 9:5:1?

Also if you use low boost your not heating the air as bad.

 

[2-0turbo]

If you are serious, and put a piston in that you dont know the compression of, and nor does ur 'dsm shop' then not only are you a total moron, so is your 'dsm shop'. I bet youll make loads of power at 5psi.

Were they stage 5 pistons? I hear stage 5 is the fastest.

! Shit. I just bought stage 4+ and was told they were the fastest. Where did you find stage 5 pistons? What color should I paint them?

 

[DevilSperm]

You will be able to run 10:1 all day long without breaking squat, thats not high. Shit guys in the NHRA Sport Compact series run 12:1 with 40psi of boost so I'm pretty sure a street car can run 10:1 all day long with 10-15psi and not break anything.

with good tuning and a rebuild every week or two, sure i agree it can be done....but this dude will continue to turn up the boost because im sure its fun as hell....and this on pump gas WTF

 

[92tealTSI]

Hey man good luck at the dyno. With proper tuning and race gas 15psi shouldnt be a problem except that the pistons are not forged. You will have some very high combustion chamber temps but cool idea.

Looks like youve got an adequate fuel system, but my question is why do you think you wont make 400hp on those pistons? Or I guess another question is why that hardcore of a fuel system if you dont even want to make 400 hp?

To you tards out there bashing hondas... I know of several stock motored cars (no block girdle or anything) making 350+hp. Its all in the tuning.

 

[ADrewzki]

Good luck with that. You might think that everyone is hating on you but there is a reason why everyone sticks with low compression pistons. I'm not sure why you're so sure it's going to work out differently for you but go for it. Experience is the best teacher.

 

[armandovivoni]

ok so this is what I see were I live. hondas like some of you said doing 11 and 10 second pass on the 1/4 mile. dont have 400hp. example. there is a N/A crx with the b18 and 276hp doing 10.6 other example crx with 1.6 SOHC motor turbo doing 11.2 and doesnt have near 350hp. IMO honda small car light weigh with engine swap= good 1/4 times.

someone asked why do I have that fuel system for this setup. well this is a new setup, my old setup was 8:5;1 @30psi and sometimes 75 shot nitrous on the side.

my GST click here on page 2 is my list of engine mods, somethings have changed like crower cams for hks cams, the high comp pistons, and rods

 

[Goodguy162000]

Of course a CRX doesn't need 400 whp to complete a 10 second pass. CRX's weigh as little as 1700 lbs stock depending on the year and style. a 2001 GS-R weighs 2572 lbs stock. Now do the math... Now imagine that CRX further lightweighted as it seems most Honda people like to do. I sold Honda's here in my state. Being a young car enthusiast I pay attention to Hondas. In my personal opinion, these are DAMN fine cars. In fact, it would not be hard to achieve 350-400+ HP with one of these cars easily . Probably have less stupid S*** breaking along the way as well.

 

[Goodguy162000]

Oh and by the way... 30lbs of Boost? AND A 75 SHOT? Obviously you like to push your engine far above what it should be. Like everybody and his dog has already told you, good luck. If your wallet is deep enough, and you have hours upon hours of free time, more power to you.

 

[notractiongst]

someone asked why do I have that fuel system for this setup. well this is a new setup, my old setup was 8:5;1 @30psi and sometimes 75 shot nitrous on the side.

On pump gas right??

 

[armandovivoni]

no, not on pump gas. I think I stated that before. on c116.

the reason hondas are using crx with engine swaps is cause thats what works for them. i have never seen a integra gsr going faster than 13.0 on the 1/4 mile.

now the fastest honda heavy car I have seen here is an RSX full body. he got 526hp out of it. with forged internals. he ran 10.6 on the 1/4 mile. Im just telling what I see and know from were i live. puertorico.

update. I boosted up to 10psi. feels much faster than before but problem is im burning tires up to 3rd gear. with positraccion. my autometer EGT gauge goes up to 1,000 so I know im still running rich and can go a little higher. but im leaving it at 10psi for now. tomorrow Im going to the shop as I said before. lets see how much boost I can run. next step is dyno. im going on the 23rth of this month. thats if I dont blow the engine before . remember this is a temporary setup that I decided to try and find out how it works until I finish buying my new setup of forged internals and a ballbearing turbo. who knows if I can get good result on the dyno. with this. maybe Ill go with 9:0.1 forged. instead of 8:5

 

[1fast97gsx]

Give the guy a break ... although in my opinion on a street car crazy compression and low boost isn't what I'd want, in the racing world it's proven that high compression AND high boost is what's needed for speed. With this comes proper tuning and high octane fuel but it's possible. I'm assuming these are 10:1 compression pistons? 15 psi is not a problem on pump gas with those as long as it's properly tuned. I would have opted for forged pistons, but we'll see how far those pistons take you.

 

[Talesin]

Actually, I more take offense that he's using that turbo on a high-comp engine. Not to mention that he's saying that he beat a Mirage 2.0... which is a bit more than a third lighter, and run 12s with a stock 4g63t swapped in. Unless the driver of the mirage was using his posterior to steer and shift, AND the engine was badly detuned.

Got E.T.s?

 

[1fast97gsx]

At least he doesn't have a 16g on a built / rebuilt motor like 50% of people on these boards do. That makes me sick everytime I read about someone just building an engine with all forged internals and cams and what not and then having a 16g.

 

[armandovivoni]

talesin, thats what im saying man. thats why I liked the high comp setup. and so you know I have more mods than he does. we are both from the same shop. he has a bigger exhaust turbine so he has more top end power. we are both using the same microtech engine management. he has eagle rods, stock 2g pistons, msd 750cc inj., walbro fuel pump, same boost controll I have, same wastegate, he has front mount IC, custom IC pipes, same FPR I have and the shop street tuned he's mirage at 14psi right after they street tuned mine at 5psi. thats why we raced. Its obvious he still has a lot more power hidden waiting to be unleashed. but that doesnt change the fact I beat him with a much heavier car eclipse gst 97, at 9psi less than him.

surprised?? me too

 

[armandovivoni]

dude, what are you talking about. captain this captain that. If you re-read the thread you'll find not once I have talked about HP numbers. It is called trying things out, or experimenting. have you done this yourself? or are you writing what you heard or read somewere else? . did you miss the part were I wrote 225 comp. ? IMO you typed without reading. but what the hell, there comes a time where you have to let idiots go ahead and be idiots

 

[super97gst]

by the time ur turn the boost up to 15, maybe a little higher ur not gonna be able to tell where the pistons stop and the rest of the block starts. because they are gonna be melted together. if u dont like that everyones telling u what ur doin is gonna end up costing u a lot of money then just dont post back onto the thread. if u shop doesnt know what compression pistons uve got and u dont either, thats not a good start for this street tune ur talking bout. hope u have good luck with it man.

 

[armandovivoni]

jaja if it was someone else doing this high comp. test and not me I would probably be doing the same thing you are doing now. !

 

[Thomas91169]

nothing wrong with all motor honda setups. but i myself like a bigger car with more than a egg crate to sit on and more than a speedo and tach zip tied to what used to be a dash when i go to the track. everyone knows a 12 second all motor honda, but they dont mention is its all motor and no car. ooh b18c5, 10psi stock motor, whoopteefrickindoo. if i wanted to spend close to 8-10grand for a 11 second setup, it wouldnt be in a tin canned 4banger.

You will be able to run 10:1 all day long without breaking squat, thats not high. Shit guys in the NHRA Sport Compact series run 12:1 with 40psi of boost so I'm pretty sure a street car can run 10:1 all day long with 10-15psi and not break anything.

those guys are running forged setups and more than likely insanely strong blocks. and someone already calculated his compression(armando's) is gonna be around 14:1 if their math is right. and also unlimited pocketbooks, if a engine blows up, theres prolly a backup and a backup of a backup in the trailer, "pah, get out dah hamma, i blew me a enjuhn".

I have personally tuned a completly stock B18C with a Drag turbo kit to 10psi on pump gas and it make 319whp on a fully stock motor using a AFC. Honda's unlike DSM's however can make upwards of 500whp on the stock trans with only welding the diff.

thats cause they have no torque. no power till 4-5k. and wow a b18c on 10psi, i bet that cost a good 6grand for the engine/turbo setup alone. 6 grand, i couldve bought my 16g setup and still had 4000 left and made the same power. i guess if you have mommy and daddy buy your honduh then everything else is no big deal.

in the racing world it's proven that high compression AND high boost is what's needed for speed. With this comes proper tuning and high octane fuel but it's possible.

yeah obviously guess thats why shep and brent rau to name a few, use low compression pistons.

 

[bastarddsm]

I see you have a standalone EMS, BUT.....do you have a good way to monitor EGTs and all those nice things that engines dont like? You said 225psi, thats closer to 10-10.5(ish):1 comp ratio. Either way, I would take those pistons out before u MELT THEM

Dude, don't post on things you know nothing about, cranking compression has too many variables to use it to judge the static CR. for example cam timing has a huge role in cranking compression, as well as VE, and other such things, but you already know this dont you?

 

[notractiongst]

.but what the hell, there comes a time where you have to let idiots go ahead and be idiots

you should re read over that quote ..about 17 times..very carefully

 

[BrokenTsi]

I know a guy in Mexico that uses Rock pistons, something like 15:1, says it works real good. I wouldn't do it to my car, tho. Maybe I'll ask Kar King about them, I hear they are GREAT engine builders.