215whp LS/Vtec possible?
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From: Toronto, Canada
215whp LS/Vtec possible?
Is this possible out of a supposed 1.8L CTR piston. ITR cam. LS/Vtec? Just trying to figure out if those numbers are possible out of a 1.8L LS/Vtec. Seems just a little out of reach for a 1.8L. Maybe if it was bored out to 2.0L...
Modified by KS-R at 11:54 PM 9/28/2003
Modified by KS-R at 11:54 PM 9/28/2003
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From: tallafizzy, FL state
Re: 215whp LS/Vtec possible? (KS-R)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by KS-R »</TD></TR><TR><TD CLASS="quote">What about a CAT cam... They're a new company. If you know about them... you'll probably think even less likely.</TD></TR></TABLE>
have a web site for them?
have a web site for them?
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From: Texas, USA
Re: 215whp LS/Vtec possible? (KS-R)
Civic Type R cams have a little bit higher lift duration than the Integra Type R cams...check the numbers (per liter displacement, of course).
I think with 1.83L LS block with 11:1 compression and Civic Type R head..you'd probably see those numbers with good tuning
oh, and if you're going to bore out, you might as well get GSR block for 9000 rpm balanced bottom end, LS block will cost you a bit more in the end, if you're going to bore it out anyway (Most people get the LS block because it's cheaper to buy and has 35-39cc's of displacement over gsr block, good for a few ft/lb's torque at any time )
I think with 1.83L LS block with 11:1 compression and Civic Type R head..you'd probably see those numbers with good tuning
oh, and if you're going to bore out, you might as well get GSR block for 9000 rpm balanced bottom end, LS block will cost you a bit more in the end, if you're going to bore it out anyway (Most people get the LS block because it's cheaper to buy and has 35-39cc's of displacement over gsr block, good for a few ft/lb's torque at any time
)
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From: Woodbridge, NJ, Middlesex
Re: 215whp LS/Vtec possible? (KS-R)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by KS-R »</TD></TR><TR><TD CLASS="quote">Is this possible out of a supposed 1.8L CTR piston. ITR cam. LS/Vtec? Just trying to figure out if those numbers are possible out of a 1.8L LS/Vtec. Seems just a little out of reach for a 1.8L. Maybe if it was bored out to 2.0L...
</TD></TR></TABLE>
you need to make close to 140 lb-ft torque @ 8100rpm (where CTR cams generally peak with production style headers, i.e. toda, spoon, mugen, jun, jdm 4-1, etc.
To get the motor to keep making 140 torque @ 8100rpm you need a really good header that has all top end, you need cam gears that will move the power band to all top end (will make car slower because you're taking away TW form the midrange to put on the top end just to obtain a peak dyno HP number) ... Even bumping compression up may add some top end but its difficult but doable with a 1.6x rod ratio motor not with a 1.54 motor.
Greg
</TD></TR></TABLE>
you need to make close to 140 lb-ft torque @ 8100rpm (where CTR cams generally peak with production style headers, i.e. toda, spoon, mugen, jun, jdm 4-1, etc.
To get the motor to keep making 140 torque @ 8100rpm you need a really good header that has all top end, you need cam gears that will move the power band to all top end (will make car slower because you're taking away TW form the midrange to put on the top end just to obtain a peak dyno HP number) ... Even bumping compression up may add some top end but its difficult but doable with a 1.6x rod ratio motor not with a 1.54 motor.
Greg
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