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#31
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Mychailo :: 2006 Silver Mitsubishi Evolution 9, E85, 34 psi peak, 425wtq/505whp DJ :: 1995 Laguna Blue SVX L AWD 5MT (sold) Visit my locker SVX Mods: ND iridium spark plugs, Impreza RS fpr, afr tuned to 13.2:1 using a custom MAF bypass, custom exhaust, WRX 5MT w/ STi RA 1st-4th gear & stock WRX 5th gear, Exedy 13 lb flywheel & Sport Clutch, STi Group N tranny & engine mounts, urethane spacers in rear subframe, rear diff mounts, and pitch stopper, SVX Sport Strut Springs (185f/150r), custom 19 mm rear swaybar, urethane swaybar mounts, Rota Torque 17x8", 225/45-17 Proxes 4 tires, Axxis Deluxe Plus organic brake pads. |
#32
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As for factory cams, bmw, mercedes, porsche, nissan and saab have dohc hyd, and apparently some Mazda. Probably more.
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Special Thanks to Our Friends and Sponsors: * http://www.alcyone.org.uk/ssm http://www.PhenixWheels.com http://www.dba.com.au/ http://www.ClassicSoftTrim.com http://ToyoTires.com/tire/pattern/versado-lx Gillman Subaru of Houston "QuickChange" http://www.TransGo.com/ http://www.PlanetSVX.com Bontrager Works, '92 Subaru SVX LS-L Claret ORIGINAL OWNER '92 LS-L Pearl~ '92 LS Pearl~ '92 LS-L Teal~ '92 LS-L Silver~ '95 LSi Polo~ '92 JDM Alcyone SVX Version-L 4WS Pearl~ http://www.subaru-svx.net/forum/showthread.php?t=54143 '92 JDM Alcyone SVX Version-L 4WS Ebony~ http://www.subaru-svx.net/forum/showthread.php?t=54117 |
#33
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Please post. Also, please ask for [and post] the base circle diameter.
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Special Thanks to Our Friends and Sponsors: * http://www.alcyone.org.uk/ssm http://www.PhenixWheels.com http://www.dba.com.au/ http://www.ClassicSoftTrim.com http://ToyoTires.com/tire/pattern/versado-lx Gillman Subaru of Houston "QuickChange" http://www.TransGo.com/ http://www.PlanetSVX.com Bontrager Works, '92 Subaru SVX LS-L Claret ORIGINAL OWNER '92 LS-L Pearl~ '92 LS Pearl~ '92 LS-L Teal~ '92 LS-L Silver~ '95 LSi Polo~ '92 JDM Alcyone SVX Version-L 4WS Pearl~ http://www.subaru-svx.net/forum/showthread.php?t=54143 '92 JDM Alcyone SVX Version-L 4WS Ebony~ http://www.subaru-svx.net/forum/showthread.php?t=54117 |
#34
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Where are you getting 325cfm from I saw 239 messing around with clay at
.450 unless I typed it in wrong. |
#35
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My typo. I'll fix it above. Please amend if necessary. Did you happen to record the intake flow at .300" lift?
Here is your quote: Vtsuby's cylinder head development thread I finally got the heads rigged up on the flow bench today. We have had issues calibrating the software for the bench but for an initial test I lifted the valves to .450" and saw 235cfm. Quote:
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Special Thanks to Our Friends and Sponsors: * http://www.alcyone.org.uk/ssm http://www.PhenixWheels.com http://www.dba.com.au/ http://www.ClassicSoftTrim.com http://ToyoTires.com/tire/pattern/versado-lx Gillman Subaru of Houston "QuickChange" http://www.TransGo.com/ http://www.PlanetSVX.com Bontrager Works, '92 Subaru SVX LS-L Claret ORIGINAL OWNER '92 LS-L Pearl~ '92 LS Pearl~ '92 LS-L Teal~ '92 LS-L Silver~ '95 LSi Polo~ '92 JDM Alcyone SVX Version-L 4WS Pearl~ http://www.subaru-svx.net/forum/showthread.php?t=54143 '92 JDM Alcyone SVX Version-L 4WS Ebony~ http://www.subaru-svx.net/forum/showthread.php?t=54117 Last edited by NeedForSpeed; 02-11-2006 at 02:35 PM. |
#36
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Good work. I wasn't able to measure an installed spring height to calculate lift to coil bind, but I did measure cold bind on a spring tester. Both springs with retainer reached coil bind at .850" @135 pounds. Removing the inner spring, the outer spring and retainer reached coil bind at .812" @ 95 pounds, a gain of .038/1mm of travel. So, perhaps the inner spring could be changed [sti piece?], depending on chosen cam lift, etc. Of course there is always the option of fitting completely different valve springs.
If Bill measured .419" lift to coil bind on the intake with inner/outer springs, we could add .038" for a total of .457" lift to coil bind if we could replace the inner spring. Subtracting .050" safety margin, the outer spring with a different inner spring could handle a .400" lift lobe. I measured retainer to valve seal clearance of .450/.455, which is in the same ballpark, also limiting valve lift to approximately .400"/10mm. Intake lobes up to .360" [.390" was Bill's measured exhaust coil bind?/please clarify] should be compatible with stock inner/outer springs and stock valve seal location, providing other clearances are verified. [QUOTE=SVXRide]Well, I actually found some time to get to my machinist's shop and got the answers to #2 and #3 above (totally phased about #1 I'll probably get this measurement in the next week...) The clearance between the intake cam lobe and the rim of the lifter bore (using the Delta Cam intake.....oops, is this mike on? ) is greater than .032 inches (~.86mm). The feeler gauge kit we were using maxed out at .032 and it was time to leave so we didn't measure exactly how much clearance there is. There was definitely more room to play with and you can get even more if you just radiused the lobe a little... As far as lift to coil bind is concerned, we first did a calculation using measurements on the intake valve we've removed (getting ready for some flow work ) and we came up with 0.419 inches (10.63 mm) of lift when the spring binds. We then rigged the head up on a drill press (squaring the valves with the plunger on the press and instrumenting the press with a dial gage). I've included the measurements we got in the picture below. Enjoy! -Bill
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#37
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I'll second the .450 measurment thats where they bottom out on my fixture with starllet dial gauge |
#38
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Definetly wide the throat some especially back side to try to slow the air down alittle which should help it make the corner.
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#39
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Ron,
the .390 measurement was on an intake valve....we measured more travel on the exhaust valves...see the figures within the picture I posted earlier. -Bill p.s. is everyone ready to gang up on Scott at Delta Cams to get a good exhaust lobe "upgrade" to go with our intake lobe "upgrade"?
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Retired NASA Rocket Scientist Most famous NASA "Child" - OSIRIS-REx delivered samples from asteroid BENNU to Earth in Sept. 2023 Center Network Member #989 '92 Fully caged, 5 speed, waiting for its fully built EG33 '92 "Test Mule", 4:44 Auto, JDM 4:44 Rear Diff with Mech LSD, Tuned headers, Full one-off suspension '92(?) Laguna, 6 spd and other stuff (still at OT's place) My Locker |
#40
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Confirmation is appreciated, thanks
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Special Thanks to Our Friends and Sponsors: * http://www.alcyone.org.uk/ssm http://www.PhenixWheels.com http://www.dba.com.au/ http://www.ClassicSoftTrim.com http://ToyoTires.com/tire/pattern/versado-lx Gillman Subaru of Houston "QuickChange" http://www.TransGo.com/ http://www.PlanetSVX.com Bontrager Works, '92 Subaru SVX LS-L Claret ORIGINAL OWNER '92 LS-L Pearl~ '92 LS Pearl~ '92 LS-L Teal~ '92 LS-L Silver~ '95 LSi Polo~ '92 JDM Alcyone SVX Version-L 4WS Pearl~ http://www.subaru-svx.net/forum/showthread.php?t=54143 '92 JDM Alcyone SVX Version-L 4WS Ebony~ http://www.subaru-svx.net/forum/showthread.php?t=54117 |
#41
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That's what I thought you meant. Looks like the stock springs are only good to .340"/350" lift. As I mentioned, the inner spring could be swapped to gain some more.
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Special Thanks to Our Friends and Sponsors: * http://www.alcyone.org.uk/ssm http://www.PhenixWheels.com http://www.dba.com.au/ http://www.ClassicSoftTrim.com http://ToyoTires.com/tire/pattern/versado-lx Gillman Subaru of Houston "QuickChange" http://www.TransGo.com/ http://www.PlanetSVX.com Bontrager Works, '92 Subaru SVX LS-L Claret ORIGINAL OWNER '92 LS-L Pearl~ '92 LS Pearl~ '92 LS-L Teal~ '92 LS-L Silver~ '95 LSi Polo~ '92 JDM Alcyone SVX Version-L 4WS Pearl~ http://www.subaru-svx.net/forum/showthread.php?t=54143 '92 JDM Alcyone SVX Version-L 4WS Ebony~ http://www.subaru-svx.net/forum/showthread.php?t=54117 Last edited by NeedForSpeed; 02-28-2006 at 11:33 AM. |
#42
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Bill, an 'upgraded' exhaust lobe would be best determined by exhaust port flow. Let's see what flow numbers are measured by those of you with heads on a flow bench, like yourself and VTSuby.
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Special Thanks to Our Friends and Sponsors: * http://www.alcyone.org.uk/ssm http://www.PhenixWheels.com http://www.dba.com.au/ http://www.ClassicSoftTrim.com http://ToyoTires.com/tire/pattern/versado-lx Gillman Subaru of Houston "QuickChange" http://www.TransGo.com/ http://www.PlanetSVX.com Bontrager Works, '92 Subaru SVX LS-L Claret ORIGINAL OWNER '92 LS-L Pearl~ '92 LS Pearl~ '92 LS-L Teal~ '92 LS-L Silver~ '95 LSi Polo~ '92 JDM Alcyone SVX Version-L 4WS Pearl~ http://www.subaru-svx.net/forum/showthread.php?t=54143 '92 JDM Alcyone SVX Version-L 4WS Ebony~ http://www.subaru-svx.net/forum/showthread.php?t=54117 Last edited by NeedForSpeed; 02-28-2006 at 11:34 AM. |
#43
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Quote:
Damn....now the pressure is really on -Bill
__________________
Retired NASA Rocket Scientist Most famous NASA "Child" - OSIRIS-REx delivered samples from asteroid BENNU to Earth in Sept. 2023 Center Network Member #989 '92 Fully caged, 5 speed, waiting for its fully built EG33 '92 "Test Mule", 4:44 Auto, JDM 4:44 Rear Diff with Mech LSD, Tuned headers, Full one-off suspension '92(?) Laguna, 6 spd and other stuff (still at OT's place) My Locker |
#44
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Next step.
Bill to ensure that we get the results that I am looking for, in this set. We have to rely on Scott to find what profile that he has, that will be closest to the specs that we want.
These are; a duration of about 255* seat to seat/205* at 0.050". 0.350"/8.75 mm lift. The opening and closing ramps should be fast opening, as for a hydraulic lifters. This cam that he has could be OK, but you should check with him to see if it will fit these specs. Harvey.
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One Arm Bloke. Tell it like it is! 95 Lsi. Bordeaux Pearl, Aust. RHD.149,000Kls Subaru BBS wheels. 97 Liberty GX Auto sedan. 320,000Kls. 04 Liberty 30R Auto Premium. 92.000kls. |
#45
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I'll try to make some time to call Scott on Monday. Can you give me a little more to work with here, as the 205 deg at 0.050" appears to be the KA24DE intake (less a degree of duration)? Are we still looking at the KA24DE intake and exhaust profiles as our desired NA2 profiles? The thread has been a little disjointed at times due to the apparent variation within the KA24DE cam "family". Will the "255 deg seat-to-seat" spec be enough of a requirement to drive the "fast opening/closing ramps" aspect here? Thanks. -Bill
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Retired NASA Rocket Scientist Most famous NASA "Child" - OSIRIS-REx delivered samples from asteroid BENNU to Earth in Sept. 2023 Center Network Member #989 '92 Fully caged, 5 speed, waiting for its fully built EG33 '92 "Test Mule", 4:44 Auto, JDM 4:44 Rear Diff with Mech LSD, Tuned headers, Full one-off suspension '92(?) Laguna, 6 spd and other stuff (still at OT's place) My Locker Last edited by SVXRide; 08-06-2006 at 10:14 PM. |
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