What compression do you run, In you built engine?

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04-23-2004, 10:25 AM

PGT Driver

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What compression do you run, In you built engine?

I am trying to get a feel for what compression you guys run in you cars. I dont care about stock so much, but more less what you run with a built motor and how many PSI your running.

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04-23-2004, 11:04 AM

B18 CYA

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Re: What compression do you run, In you built engine? (PGT Driver)

JE 9:1 81mm Pistons, Eagle H Beam Rods, SRP Blockguard. Planning to run 12-15 psi...

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04-23-2004, 11:24 AM

tygsr

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Re: What compression do you run, In you built engine? (PGT Driver)

9:5:1..endyn rollerwaves..

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04-23-2004, 11:33 AM

seen4ever

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Re: What compression do you run, In you built engine? (tygsr)

9.2:1 Endyn Rollerwaves, 81.5mm, b18c1.

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04-23-2004, 12:00 PM

kpt4321

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Search for compression ratio there are a ton of big long threads with some good information.

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04-23-2004, 12:23 PM

SupaTeg

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Re: What compression do you run, In you built engine? (PGT Driver)

9.1 buddy

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04-23-2004, 12:27 PM

Nextelbuddy

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Re: What compression do you run, In you built engine? (SupaTeg)

9:1 je but i wish i would have went with 10:1 je pistons... wold be easier to make more power with less boost.

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04-23-2004, 04:43 PM

PGT Driver

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i dont drive a honda but i am just curoious as to what works for you guys, i mean hell if you guys can why cant i. I want to run maybe 10:1 or atleast 9.5:1

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04-23-2004, 04:51 PM

94gsr4dr

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Re: (PGT Driver)

9:8:1 cp's

Boost isn't important; its the power you want to make

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04-23-2004, 04:59 PM

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PGT Driver

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Re: (94gsr4dr)

boost is important but i want higher compression too so i can make more power

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04-23-2004, 05:00 PM

#11

g2turbo

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Re: (94gsr4dr)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94gsr4dr »</TD></TR><TR><TD CLASS="quote">9:8:1 cp's

Boost isn't important; its the power you want to make</TD></TR></TABLE>

same here 81mm CP 9.8:1.

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04-23-2004, 05:05 PM

#12

94gsr4dr

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Re: (g2turbo)

i got 81.5's, but close none the less. When i plan out a motor i set a horsepower goal not a pressure goal.

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04-23-2004, 05:32 PM

#13

11psiTurboSI

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Re: (94gsr4dr)

b16a2 stock bore (81mm) JE pistons-8.8:1cr

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04-23-2004, 05:38 PM

#14

kpt4321

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Re: (PGT Driver)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PGT Driver »</TD></TR><TR><TD CLASS="quote">i want higher compression too so i can make more power</TD></TR></TABLE>

In the end, you will make more power with lower compression and higher boost, as long as you are not limited by turbo sizing.

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04-23-2004, 05:41 PM

#15

mildly.interesting

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8:5.1 Arias, pushing in the neighborhood of 22-25 lbs daily.....

represent....

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04-23-2004, 05:45 PM

#16

USDM 4G VTEC

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76mm SRP (JE) 9.0:1 forged pistons on Eagle H beam rods

hoping that 10-12 will not even tickle it

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04-23-2004, 06:44 PM

#17

espanol

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Re: What compression do you run, In you built engine? (PGT Driver)

je 9:1 stock bore, 14-21 psi on any given day.

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04-23-2004, 06:51 PM

#18

illi Adik

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Re: (PGT Driver)

9:8:1 JE's

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04-23-2004, 06:51 PM

#19

vtec.dc2

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Re: What compression do you run, In you built engine? (PGT Driver)

10:1.. 260whp right now, i don't plan on making more than 300whp.. possibly 325whp

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04-23-2004, 07:08 PM

#20

queez

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Re: What compression do you run, In you built engine? (vtec.dc2)

9.4:1 . cp pistons 84mm bore on b16a2

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04-23-2004, 07:22 PM

#21

r1racer

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10:1 JE Pistons with Crower Rods

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04-24-2004, 05:30 AM

#22

Soon_2b_evil

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Re: (r1racer)

10.5 Wiseco pistons with a 84.5mm bore. ALmost done.

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04-24-2004, 09:22 AM

#23

RAWB

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Re: What compression do you run, In you built engine? (PGT Driver)

9:8:1 CP's/81.5mm
*GSR block w/B16 head = 9:6:1

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04-24-2004, 09:46 AM

#24

Rod.

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Re: What compression do you run, In you built engine? (RAWB)

9:1 cp pistons

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04-24-2004, 09:56 AM

#25

g2turbo

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Re: (kpt4321)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kpt4321 »</TD></TR><TR><TD CLASS="quote">

In the end, you will make more power with lower compression and higher boost, as long as you are not limited by turbo sizing.
</TD></TR></TABLE>

3 bar? If you want to feel safe... sure run 8:1 compression and 40 lbs of boost. Im limited to a 3 bar system and feel no need to run over 28 lbs... which will most likely make my whp goal with my setup. Im also not worried about making 400 or more on pump gas. 10:1

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