I am thinking of changing to a solid roller setup. I have a C5 6 speed with a LS3 418ci, AFR 225's, Fast 90/90, 12 to 1, with a hyd roller 251/258 660/595 on a 111 + 4. I have the motor pulled down and want to make some changes. I run a direct port and a plate on the combo but mostly run on motor. I am thinking about changing the hyd to solid. My motor makes power to 6400 and falls off. It makes 550/500 on motor. I am looking for more power and rpm to better my ET. My questions are.

Do you like a solid roller over the Hyd?

Does the solid still have good power down stairs?

What lifters, springs and rockers are you running?

What cam are you running?

Dyno graphs?

I have been talking with Tony (AFR) and Patrick G about a cam choice. Tony is a awesome guy and has taken lots of his time to educate me and help me make the correct choice. I want to do a max effort all motor combo but still hit the juice when needed. Any help would be greatly appreciated.

 

i recently changed to solid way more low end grunt and idles way way better,best 80 dollars i ever spent in my opinion!

 

I wish mine was going to cost $80.00. I calculate around $3000.00 to convert.

 

oh snap typo sorry 802.87 dollars for the comp solid cam #54-501-11 and Endurex Solid lifters #8956-16 from speed engineering,New Valve Springs from AFR #8019's $249,and a set of trick flow 7.90inch push rods from S******t R@@^@cing 89.95,oh set of 0.40 thick Cometic head gaskets from speed inc. $150.

 

Can't say enough about it. You won't be going back to a hyd. cam.

 

Only bad part about solid is factory computer is limited to 8k RPM My solid 416 ls3 did 750@ the flywheel

 

What lifters did you go with?

Can you change the cam without pulling the heads?

What springs are you running?

 

have to remove the heads to change to solid roller lifters.

 

You can run a soild roller cam with the hydraulic lifters. Several cars out there doing this. Coach's car is one - very similiar cam picked up 30rwhp.

 

Patrick G speced me a new cam. It was a solid roller cam running hyd lifters. If I used that I would still have the same problem I am running into with my old cam. The motor makes power to 6400 and falls off due to valve control. I was running a 251/258 .660”/.595” 111LSA +4 advance

I am looking to make more usable power in the upper rpms

 

I'm going to be using a solid roller in mine (stock stroke, 3.902 bore), a COMP 256/260 0.690 lift on a 106 with DART 225's. Can't wait to get it going (it's close), going in a dirt circle track car. Looking for 7800rpm or so.

 

Sounds like you need more valvespring to me.

 

yep more valvespring, try to get a Manley Nextek spring on there.

 

Going solid now. I ran comp and patriot springs. I set them up close to coil bind for maximum pressure. It's not like my power just fell off. Peak was 6400 and started to fall. I don't think the can should of peaked that soon. Cam made great power and loved the spray.

 

good luck with the swap, I will be interested to find out the finished cost and make sure you post dyno graphs of the new combo.

 

Crower lifters, Manley Nextek springs, T&D shaft rockers

 

Do t&d make an adjustable rocker system for l92 heads or just jessel at the moment?

 

best to call them and ask. For example, they make a set for ETP 11* heads, but its not listed anywhere to my knowledge.

 

cheers

 

iirc you have a choice between jessel, comp (I think.. i'm 50/50 on that one), and Harland sharp.