What HP gain when putting CTR pistons in a B18C6 (Euro ITR)
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From: NJ, NJ, USA
Re: What HP gain when putting CTR pistons in a B18C6 (douglas_be)
hmm... i have simlar set yup.
i got ctr piston, ctr cams,
itr head, gsr block.
itr tranny, stock cam gears,
d-c 4-1 headers 2.25
stock intake. p28 throttle body.
power fc tuned. made 178 hp and 123 tq.
i got ctr piston, ctr cams,
itr head, gsr block.
itr tranny, stock cam gears,
d-c 4-1 headers 2.25
stock intake. p28 throttle body.
power fc tuned. made 178 hp and 123 tq.
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From: 20% stronger
Re: What HP gain when putting CTR pistons in a B18C6 (phantoman)
i woudln't suggest CTR pistons in a l.8...cause its not really OEM honda.
i made l80, l35 with my ITR motor...head milled 20k, p30 intake manifold, bl6a throttle body...etc...2.25 comptech ITR header...in ll0 degree heat. in 60 degree heat thats around l90whp...
my point is with ctr pistons and OEM cams the compression is too high for the cams to be effective. its like running jun 3's in an OEM gsr motor...it just doesn't work quite as well as jun 3's in a l2.5:l motor.
i made l80, l35 with my ITR motor...head milled 20k, p30 intake manifold, bl6a throttle body...etc...2.25 comptech ITR header...in ll0 degree heat. in 60 degree heat thats around l90whp...
my point is with ctr pistons and OEM cams the compression is too high for the cams to be effective. its like running jun 3's in an OEM gsr motor...it just doesn't work quite as well as jun 3's in a l2.5:l motor.
Junior Member
Joined: Jul 2002
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From: NJ, NJ, USA
Re: What HP gain when putting CTR pistons in a B18C6 (chet)
hmm.
you made 180 with stock itr cams?
are you saying stock cams arent good for high compression?
if so, y mill the head to raise compression?
isnt that the same as puting high compression pistons in ur motor?
i agree jun3 with 12.1-higher compressions is more effective.
or a more agressive cam for the higher compression will me good, ie; toda C/D, jun 2/3, skunk2 III
also, what do you mean not oem, milling the head isnt oem....
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chet »</TD></TR><TR><TD CLASS="quote">i woudln't suggest CTR pistons in a l.8...cause its not really OEM honda.
i made l80, l35 with my ITR motor...head milled 20k, p30 intake manifold, bl6a throttle body...etc...2.25 comptech ITR header...in ll0 degree heat. in 60 degree heat thats around l90whp...
my point is with ctr pistons and OEM cams the compression is too high for the cams to be effective. its like running jun 3's in an OEM gsr motor...it just doesn't work quite as well as jun 3's in a l2.5:l motor.
</TD></TR></TABLE>
you made 180 with stock itr cams?
are you saying stock cams arent good for high compression?
if so, y mill the head to raise compression?
isnt that the same as puting high compression pistons in ur motor?
i agree jun3 with 12.1-higher compressions is more effective.
or a more agressive cam for the higher compression will me good, ie; toda C/D, jun 2/3, skunk2 III
also, what do you mean not oem, milling the head isnt oem....
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chet »</TD></TR><TR><TD CLASS="quote">i woudln't suggest CTR pistons in a l.8...cause its not really OEM honda.
i made l80, l35 with my ITR motor...head milled 20k, p30 intake manifold, bl6a throttle body...etc...2.25 comptech ITR header...in ll0 degree heat. in 60 degree heat thats around l90whp...
my point is with ctr pistons and OEM cams the compression is too high for the cams to be effective. its like running jun 3's in an OEM gsr motor...it just doesn't work quite as well as jun 3's in a l2.5:l motor.
</TD></TR></TABLE>
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From: 20% stronger
Re: What HP gain when putting CTR pistons in a B18C6 (phantoman)
i'm saying oem cams are most efficient at or around 10.8-11.2:1 compression.
my setup is mild...which is the reason why i retained a close to OEM setup....and still made decent power. i just see a lot of people running super high compression with ctr cams...and skunk2's or jun3's or toda b's would almost certainly make more power...and with less compression the ctr cams would basically make the same power.
my setup is mild...which is the reason why i retained a close to OEM setup....and still made decent power. i just see a lot of people running super high compression with ctr cams...and skunk2's or jun3's or toda b's would almost certainly make more power...and with less compression the ctr cams would basically make the same power.
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From: Northern, California, USA
Re: What HP gain when putting CTR pistons in a B18C6 (chet)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chet »</TD></TR><TR><TD CLASS="quote">i woudln't suggest CTR pistons in a l.8...cause its not really OEM honda.
i made l80, l35 with my ITR motor...head milled 20k, p30 intake manifold, bl6a throttle body...etc...2.25 comptech ITR header...in ll0 degree heat. in 60 degree heat thats around l90whp...
my point is with ctr pistons and OEM cams the compression is too high for the cams to be effective. its like running jun 3's in an OEM gsr motor...it just doesn't work quite as well as jun 3's in a l2.5:l motor.
</TD></TR></TABLE>
is there something wrong with your 1 key?
i made l80, l35 with my ITR motor...head milled 20k, p30 intake manifold, bl6a throttle body...etc...2.25 comptech ITR header...in ll0 degree heat. in 60 degree heat thats around l90whp...
my point is with ctr pistons and OEM cams the compression is too high for the cams to be effective. its like running jun 3's in an OEM gsr motor...it just doesn't work quite as well as jun 3's in a l2.5:l motor.
</TD></TR></TABLE>
is there something wrong with your 1 key?
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From: NJ, NJ, USA
Re: What HP gain when putting CTR pistons in a B18C6 (chet)
milling a head, wouldnt that bring ur compression alot higher than 11.0?
in my opinion my set up is mild aswell, the ctrs piston in my block yeilds a safe compression, close to 11.8- 12.2. My future plans are to get a set of jun3 , that is why i have been runing this compreession. SO far the ctrs are great and the power band is smooth quick and consistant.
i have had a set of skunk2 on my car with this compression only made 180
not that big of a difference on top end. but the ctrs made 10 more in the 5-7 rpm and didnt have a ruff idle.
high compression does need cams with bigger lobs, not only that but porting the head comes into play, the more free the air and flow, the better the results are.
there are alot of factors that affect how a persons compression translate into horsepower. the problem is how far are you looking to go?
what is your goal? how are you gonna get there? and whta can you afford.
my starting point with the gsr motor,:ctr piston, gsr cams only yeilded 168 hp,
but the gain on throughout the power band was around 7-12 hp.
my cost on this build up so far
ctr piston, ctr cams, itr head, itr tranny, dc 4-1 header (2.25) : close to 900 bucks.
i traded alot of stuff to get other stuff.
in my opinion my set up is mild aswell, the ctrs piston in my block yeilds a safe compression, close to 11.8- 12.2. My future plans are to get a set of jun3 , that is why i have been runing this compreession. SO far the ctrs are great and the power band is smooth quick and consistant.
i have had a set of skunk2 on my car with this compression only made 180
not that big of a difference on top end. but the ctrs made 10 more in the 5-7 rpm and didnt have a ruff idle.
high compression does need cams with bigger lobs, not only that but porting the head comes into play, the more free the air and flow, the better the results are.
there are alot of factors that affect how a persons compression translate into horsepower. the problem is how far are you looking to go?
what is your goal? how are you gonna get there? and whta can you afford.
my starting point with the gsr motor,:ctr piston, gsr cams only yeilded 168 hp,
but the gain on throughout the power band was around 7-12 hp.
my cost on this build up so far
ctr piston, ctr cams, itr head, itr tranny, dc 4-1 header (2.25) : close to 900 bucks.
i traded alot of stuff to get other stuff.
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Re: What HP gain when putting CTR pistons in a B18C6 (chet)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chet »</TD></TR><TR><TD CLASS="quote">i woudln't suggest CTR pistons in a l.8...cause its not really OEM honda.
my point is with ctr pistons and OEM cams the compression is too high for the cams to be effective. its like running jun 3's in an OEM gsr motor...it just doesn't work quite as well as jun 3's in a l2.5:l motor.
</TD></TR></TABLE>
uhhhhm they are oem pistons.. and they run well if you know what your doing with them.. oem itr pistons are great too, generally with the ctr you will pickup tq across the board, and gain a little quicker revs. and 3 maybe 5 whp.... jun3 cams with stock gsr blocks run great.. you can put those cams in bone stock 99 si's and pickup a great deal. just about every car i have put them in run strong.. and picks up about 20+hp over stock properly tuned.
my point is with ctr pistons and OEM cams the compression is too high for the cams to be effective. its like running jun 3's in an OEM gsr motor...it just doesn't work quite as well as jun 3's in a l2.5:l motor.
</TD></TR></TABLE>
uhhhhm they are oem pistons.. and they run well if you know what your doing with them.. oem itr pistons are great too, generally with the ctr you will pickup tq across the board, and gain a little quicker revs. and 3 maybe 5 whp.... jun3 cams with stock gsr blocks run great.. you can put those cams in bone stock 99 si's and pickup a great deal. just about every car i have put them in run strong.. and picks up about 20+hp over stock properly tuned.
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From: 20% stronger
Re: What HP gain when putting CTR pistons in a B18C6 (MHRacing-310)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MHRacing-310 »</TD></TR><TR><TD CLASS="quote">
uhhhhm they are oem pistons.. and they run well if you know what your doing with them.. oem itr pistons are great too, generally with the ctr you will pickup tq across the board, and gain a little quicker revs. and 3 maybe 5 whp.... jun3 cams with stock gsr blocks run great.. you can put those cams in bone stock 99 si's and pickup a great deal. just about every car i have put them in run strong.. and picks up about 20+hp over stock properly tuned. </TD></TR></TABLE>
yes, you can make 20 hp in the top end...etc...i'd like to see what kinda power you are making across the board...as there are usually compromises in the lower rpm's.
and yes, the computer i'm on doesn't have a one key...so i use the l key instead.
uhhhhm they are oem pistons.. and they run well if you know what your doing with them.. oem itr pistons are great too, generally with the ctr you will pickup tq across the board, and gain a little quicker revs. and 3 maybe 5 whp.... jun3 cams with stock gsr blocks run great.. you can put those cams in bone stock 99 si's and pickup a great deal. just about every car i have put them in run strong.. and picks up about 20+hp over stock properly tuned. </TD></TR></TABLE>
yes, you can make 20 hp in the top end...etc...i'd like to see what kinda power you are making across the board...as there are usually compromises in the lower rpm's.
and yes, the computer i'm on doesn't have a one key...so i use the l key instead.
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From: in the ghetto where u hear Gun shots.., CA
Re: What HP gain when putting CTR pistons in a B18C6 (douglas_be)
i have the same set-up.....i hope the best of luck for because i havent gotten a chance to put my motor in yet..... 
b16b block
ctr pistons
typer rods and crank fully balanced
portflow race port head...
skunk2 stage 2 cams
JG victorX manifold port match to 70mm STR TB
ITR N3e LSD Tranny
GOOD LUCK
b16b block
ctr pistons
typer rods and crank fully balanced
portflow race port head...
skunk2 stage 2 cams
JG victorX manifold port match to 70mm STR TB
ITR N3e LSD Tranny
GOOD LUCK
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