Bring it!!!!!!!!!!!!

 

for anyone who want's to know the reason i want cam cards, is to check intake valve closing point. i want it to be around 38 degrees or lower. this helps maintain dynamic compression, since our motor's are 9.5:1 to begin with, versus 10:1. me and tiburon had a chat yesterday and checked some numbers. the MTI B1 221/221 cam on 114 has the ivc point at 40 degrees. while the MTI T1 221/221 on 112 has it at 38 degrees. the TR220 114 has it at 39.5 while the tr220 112 has it at 38.5. The cranecams HR220 ( 220/220 .551/.551 112 ) has ivc point at 37.... so far this is my cam of choice, due to this. But i'm waiting on the LPE gt2-5 specs because it's cheap, and i'm thinking it'll be in the same range.

the TR 224 cam on 112 closes at 40 degrees, therefor losing some of the dynamic compression, on a motor with already lower static compression. So in my opinion... the 224 no matter on what lsa, isn't a good cam for the stock 5.3

and i'm told stock 5.3 heads stop flowing around .560 lift, so it's real close to over camming anyways.

 

im glad your doing this re-search LoudAZZ, because i was thinking of getting the tr224,112, but after some re-search looks like the tr-220,112 looks pretty good

 

It came with a cam card that showed all the specs of the cam but I think I tossed it out with the box it came in. It showed all the specs of the cam after it was ground.

 

Found this cam card over at ls2.com.

MTI T1 cam (lunati grind) 221/221 .559 .559 112



I know this cam is not on your list but it has similar specs so I threw it in here too.

 

LoudAzzStep, why are you concerned about your DCR?

 

This cam card is for the MTI T1. The B1 has a lobe sep angle of 114. It's the same as the B1 but the T1 is the 112 LSA version.

 

compression equals power/torque. most ls1 cam grinds are for 10:1 motors. 5.3's are 9.5:1....... so, i'm trying to take advantage of every little bit possible to help get this heavy truck moving. this is the same reason why 4x4 and ex cab truck should go with an even smaller cam, with an even earlier ivc event, therefore helping maintain even more dynamic compression.

 

I wanted to see what you thought about
a few posts I just found in a thread over
at LS1GTO. They were written by Ed
Curtis. Here is the actual thread.
And here are the posts that he made. 1 2
It seemed to me that you were more
interested in standard splits but yet, you
want a high, midrange torque output. This
is sort of contradicting to what Ed thinks.
Tell me what you think... He is a well known,
and used cam grinder.

 

whoops, post fixed. Thanks Tib.