Cam spec question

[VTec1987]

Don't know if this is in the right section.

These cams specs anygood?

INTAKE: Duration: 237.17° @ 0.060 INCHES Lift: 0.5583 INCHES
EXHAUST: Duration: 256° @ 0.050 INCHES Lift: 0.494 INCHES

[VTec1987]

also changing cams and valve springs involve taking off the head?

[dsp26]

when converted to metric apparently their just ITR/CTR cams... but... you have a prelude vtir?

http://www.honda-tech.com/zerothread?id=2077887&postid=29542345
http://honda-tech.com/zerothread/2116079
http://www.jdmcivic.com/forums/showthread.php?p=922650#post922650
http://www.jdmcivic.com/forums/showthread.php?p=922650#post922650


anyways both can be done without head off... special tool is required to hold valves in place to remove retainer and spring... funnily enough a lot of mechanics don't have this and will charge labour for head removal

[VTec1987]

nah for mates b16a, so these cams are ITR\CTR

[eg92b16a]

Those cam specs sound way too big for a B16A
14mm of lift on the intake cam is huge. Definitely need good springs.
Strange to have a greater overlap on the exhaust cam, usually for race/extreme street setup. 255 deg on exhaust with that lift is getting into the realm of toda spec C range

Civic Type-R And Integra Type-R cam specs
Int-243 dur. / 11.5mm lift
Exh-235 dur. / 10.5mm lift

[TODA AU]

Gotta agree the lift figures look a bit wack...
If they are real, you'll likley have valve train geometry issues,
+ the retainer will likley smack into the top of the valve stem seal.

[bumpy1]

if his cams are itr/ctr cams then can he just bolt on these without any other mods and use stock cam gears, valve springs etc (sorry if its a dumb question)