Extremely Low Dyno
By dead cylinder do you mean not firing or no compression?
I still think a compression test is in order. You will probably get around 190psi or so (just a guess) Tony Mamo is good at calculating that with respect to the cam. Compression test is too easy not to do. I am sure that TSP degreed the cam when they installed it...but it never hurts to check it.
BTW...sorry I missed the 85mm MAF in the first post.
I still think a compression test is in order. You will probably get around 190psi or so (just a guess) Tony Mamo is good at calculating that with respect to the cam. Compression test is too easy not to do. I am sure that TSP degreed the cam when they installed it...but it never hurts to check it.
BTW...sorry I missed the 85mm MAF in the first post.
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From: Gateway International Raceway
I used to think dot to dot was good enough but after seeing so many cars with identical cams (and similar mods) but such varied results and reading a book How to Choose Camshafts and Time Them for Maximum Power (Speedpro) and talking to a few shop guys. If you want optimal power you really should degree the cam. All cams are not ground the same, hence the varied range of results. What did your power look like with the other cam...have another graph?
I realize your motor has some low easy miles on it but a compression test is so easy and will take one thing out of the equation, they should all be within 10% of one another. I did it on my car and found #7 was down 25%...broken hypereutectic piston= new motor for me. Yours could be as simple as a ringletting too much escape.
BTW...good job on your car looks great.
I realize your motor has some low easy miles on it but a compression test is so easy and will take one thing out of the equation, they should all be within 10% of one another. I did it on my car and found #7 was down 25%...broken hypereutectic piston= new motor for me. Yours could be as simple as a ringletting too much escape.
BTW...good job on your car looks great.
I used to think dot to dot was good enough but after seeing so many cars with identical cams (and similar mods) but such varied results and reading a book How to Choose Camshafts and Time Them for Maximum Power (Speedpro) and talking to a few shop guys. If you want optimal power you really should degree the cam. All cams are not ground the same, hence the varied range of results. What did your power look like with the other cam...have another graph?
I realize your motor has some low easy miles on it but a compression test is so easy and will take one thing out of the equation, they should all be within 10% of one another. I did it on my car and found #7 was down 25%...broken hypereutectic piston= new motor for me. Yours could be as simple as a ringletting too much escape.
BTW...good job on your car looks great.
I realize your motor has some low easy miles on it but a compression test is so easy and will take one thing out of the equation, they should all be within 10% of one another. I did it on my car and found #7 was down 25%...broken hypereutectic piston= new motor for me. Yours could be as simple as a ringletting too much escape.
BTW...good job on your car looks great.
-Mike
Thread Starter
Joined: Nov 2001
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From: Warr Acres, OK
Took the car back to a different Dynojet today with a new exhaust. The crush bend duals with H pipe was replaces with a 3" all mandrel bent X pipe system with I think Flowmaster 2 chamber mufflers dumped in front of the axle. Gained some peak hp and tq, but still not where I believe the numbers should be. I have cam only stock 241 head LS6 intake cars on this same Dynojet beating this one all over the graph. One with only a TR 224 cam.
Thread Starter
Joined: Nov 2001
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From: Warr Acres, OK
Just found out this cam has an advertised duration on both intake and exhaust lobes of 344 degrees. I wish I knew what lift that is measured at. If that is at .006 like Comp rates theirs at, that is insane for 228/230 @ .050 lobes.
http://www.trickflow.com/partdetail....3&autoview=sku
http://www.trickflow.com/partdetail....3&autoview=sku
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From: Gateway International Raceway
That is some serious duration...not sure how that can be though. An XER lobe 228/230 should be around 277/279 @ .006. I don't know. I have never used a TF cam.
Just found out this cam has an advertised duration on both intake and exhaust lobes of 344 degrees. I wish I knew what lift that is measured at. If that is at .006 like Comp rates theirs at, that is insane for 228/230 @ .050 lobes.
http://www.trickflow.com/partdetail....3&autoview=sku
http://www.trickflow.com/partdetail....3&autoview=sku
