TainterRacing Posted December 4, 2010 Report Share Posted December 4, 2010 (edited) I think this might help see how they all worked out. The Last one I was not sure of is the same cam as the one right by it its a Mech 292 http://www.26liter.us/forum/Garage/uploads/cache/garage_gallery_646671429.jpghttp://www.26liter.us/forum/Garage/uploads/cache/garage_gallery_1842143511.jpg Edited August 15, 2011 by TainterRacing Link to comment Share on other sites More sharing options...
chiplee Posted December 19, 2010 Author Report Share Posted December 19, 2010 no 292 roller yet. I'm worried about interference with 1.6 ratio roller rockers pushing the valves into the cylinder so far. I have a spare M6 head. Just need to get around to assembling it with roller rockers and the 292 roller grind to see just how it looks. I'm sure someone smarter than me could just do the math, but I really want to see it for some reason. Thanks for all your effort on getting these charts put together for comparison. The other graphs you put together were really useful as well. Makes me want to bolt on a GT35R and make some real power. Link to comment Share on other sites More sharing options...
lfatty Posted December 19, 2010 Report Share Posted December 19, 2010 My setup will have a 7blade hx35 and a monsta banshee and ill let you know how that works out Link to comment Share on other sites More sharing options...
chiplee Posted August 14, 2011 Author Report Share Posted August 14, 2011 bumping this thread 'cause it was ridiculously hard to find with search Link to comment Share on other sites More sharing options...
StarquestRescue Posted August 14, 2011 Report Share Posted August 14, 2011 bumping this thread 'cause it was ridiculously hard to find with searchWe can add tags after the title now, i went back and did that with some of my old threads i need to looks at sometimes. And or put a unique word in it to search for. Link to comment Share on other sites More sharing options...
Funky Phil Posted August 14, 2011 Report Share Posted August 14, 2011 I thought you made max power on the 292 mech Link to comment Share on other sites More sharing options...
chiplee Posted August 14, 2011 Author Report Share Posted August 14, 2011 (edited) I thought you made max power on the 292 mech I did. That tainter combo-graph has me confused now. There were only 3 cams compared in this thread, not 4. Not sure where he got the mystery roller graph. Since my 321.5 wasn't enough to bump Rahsaan's 321 for the top 20 list , I guess I need to head back to the dyno without a bad WBO2 sensor and with the right cam, so right now I need info on fitting a 292 roller. Schneider is happy to grind one for 1.6 ratio rockers, but I have no idea how much clearance the valves will have from the pistons. Any ideas? Edited August 14, 2011 by chiplee Link to comment Share on other sites More sharing options...
Funky Phil Posted August 14, 2011 Report Share Posted August 14, 2011 We need to know lift specs. What valves? And are your valve guides prepped? Link to comment Share on other sites More sharing options...
chiplee Posted August 14, 2011 Author Report Share Posted August 14, 2011 We need to know lift specs. What valves? And are your valve guides prepped? I'll see what I can find. There's actually 292 roller specs from pagemo in this thread somewhere iirc. My head is an all stock magna m6. no valve work or anything. Link to comment Share on other sites More sharing options...
Funky Phil Posted August 15, 2011 Report Share Posted August 15, 2011 If the valve guides are too tall you risk crushing stem seals at high lifts. I think .500 is crush zone. Link to comment Share on other sites More sharing options...
TainterRacing Posted August 15, 2011 Report Share Posted August 15, 2011 I did. That tainter combo-graph has me confused now. There were only 3 cams compared in this thread, not 4. Not sure where he got the mystery roller graph. Ok I was not sure that one that the unsure one is your Mech 292 Cam I think I just put 2 diff runs on there Link to comment Share on other sites More sharing options...
Tim_C. Posted August 26, 2011 Report Share Posted August 26, 2011 If the valve guides are too tall you risk crushing stem seals at high lifts. I think .500 is crush zone.It depends on the springs too. I've seen them hit (stem seal top to keeper) with .480 lift and HD springs. The HD springs loosened up to 93 Lbs seat pressure. They all do after the first few hours of run time on new HD springs. It is best to get around 105 - 110 lbs of seat pressure when installing new HD springs. Then they will settle closer to 100. However, for a high lift roller cam, more than and HD spring is needed. I know Chip did a lot of research on getting a 120 Lb spring or so in there. Not sure what he ever ended up with in the end?.465 lift is pretty safe there.As far as intake valves hitting pistons, that depends on all aspects of the grind and the combination thereof. High lift, long duration, wide sep, open and close positions, etc... A Schneider 292 roller will most likely hit the intake valve to the piston outer shelf area. The use a wide lobe sep at 114, coupled with 292 duration and that is enough to hit with the other grind characteristics Ive seen them use on all of their rollers. That I've seen anyway. Not saying they haven't made changes. I just haven't seen them. Link to comment Share on other sites More sharing options...
Zone Posted July 20, 2012 Report Share Posted July 20, 2012 These swivel feet... http://www.b2600turbo.com/images/IM000604.JPG Machined into the roller rockers... http://2.6liter.com//files/53/P1010106.JPG Pic curtsey of indianas website and Brians GB. So these are roller hydraulics made into mechanicals ? 1 Link to comment Share on other sites More sharing options...
SPEEDSTAR Posted July 30, 2012 Report Share Posted July 30, 2012 BUMP Link to comment Share on other sites More sharing options...
MasterVivi Posted April 18, 2015 Report Share Posted April 18, 2015 (edited) Some of that power increase can be due to running 13.5 AFR. Thats a little lean to be running at 15+ psi. I'm really confused with your results. They contradict everything about that cam. 1- Schneider claims that cam is for high rpm (as in 6000 to 9000 ) race only. I can't see how you only lost 1 ft lb of torque unless the loss was masked by the lean condition. 2- bigger cam means more air means more fuel yet you said you pulled fuel out. :? Thanks for taking the time to get results, especially since you will be swapping it out to replace with something else down the road.Oh and welcome to the club. I'm happy your car is a blast to drive. Its the perfect time of the year for turbo cars! Actually, the 292 is supposed to be from 3500-7500 revs, bud.http://schneidercams.com/solidfollowercamshafts-2.aspx Edited April 18, 2015 by MasterVivi Link to comment Share on other sites More sharing options...
Skullzaflare Posted April 23, 2015 Report Share Posted April 23, 2015 Actually, the 292 is supposed to be from 3500-7500 revs, bud.http://schneidercams...amshafts-2.aspxholy thread revival lolyes the longer overlap also reduces static compression and and effects dynamic compression everytime i switched from the magical hr70(272) cam to my 294 i had to pull alot of fuel low end, and some top end Link to comment Share on other sites More sharing options...
chiplee Posted April 25, 2015 Author Report Share Posted April 25, 2015 (edited) Actually, the 292 is supposed to be from 3500-7500 revs, bud.http://schneidercams...amshafts-2.aspx Thanks for setting Heefner straight. He's had that RPM range wrong for nearly 8 years, . I still mean to go back to a 292 cam, but as a roller. I lost too many engines to slip rockers to go back to them, although with all the more I drive the car it would probably be fine. Need to find a rear end vibe and get it Cali smog legal before I can enjoy it much. Edited April 25, 2015 by chiplee Link to comment Share on other sites More sharing options...
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