narrowed down to 2 cam choices, convine me which to buy (solid or hyd)

[DarkoStoj]

narrowed down to 2 cam choices, convine me which to buy (solid or hyd) *DYNO SHEET*

Finally time to pick out a camshaft and I'm deciding between the comp cams 282S and XE274H

282S

dur 236 @.50 .578 lift with 1.72 rockers 110 lsa

XE274H

230/236 @.50 .558/.562 with 1.72 rockers 110lsa

With the solid i'd make some more top end and not die off so quickly, and have a better torque curve through the bottom end, but the only advantage I see of the hyd is better streetability.

this is going into a 351w with

forged pistons
ported/polished World Windsor cast heads
10.5:1 CR
vic JR intake
no carb yet, but probably a 750dp
150 cheater shot of spray
tremec 3550 5 speed trans
3.55 gears (i can see 4.10's in the future)

all going into a 2600 lb 67 mustang

I guess the basic question is the streetability difference between the solid and hyd. I want to drive this car as much as possible, but are the benefits of the hyd flat tappets on the street worth it to sacrifice the power potential of a solid flat tappet?

How many people have run solid flat tappets on the street? Not just to the track and back, but on a car that gets frequent street miles. How often do you check the valve lash?

Right now i'm leaning towards the solid 282s

I just punched all the specs for my motor in my desktop engine analyzer for a approximation dyno sheet.

green - hp of 282s
blue - torque of 282s
red - hp of XE274H
light blue - torque of XE274H

 

[bluevenom867]

No roller?
If so,deffenitly the solid flat tappet.

 

[DarkoStoj]

yea motor is staying on a budget, so no roller retrofit for me

yea i'm leaning towards the solid way more then the hyd, but I'm still concerend with the streetability of it.

 

[bluevenom867]

Thats lift with the 1.72 rockers right,or is that the lift with 1.6 rockers and then you will use the 1.72's?

 

[DarkoStoj]

Thats lift with the 1.72 rockers right,or is that the lift with 1.6 rockers and then you will use the 1.72's?

that is the lift with the 1.72 rockers

 

[bluevenom867]

that is the lift with the 1.72 rockers

Ok,you should be able to drive that on the street without to much trouble.
I ran a Crane verson of the TFS Stg.2 cam in my 357W,but it was a Hyd. roller.It drove just fine on the street,even with the victor jr. single plane.

 

[DarkoStoj]

so i just got off the phone with comp cams and lunati. They reccomended me HUGE cams since i wanted to spin 7k rpm

I've decided to go with a

249/258 dur @.50 .581/.596 lift (with 1.72 rockers) 108 lca cam

tech explained to me that since i'm running a 150 shot the more duration on the exaust valve should help with the nitrous

comp cams reccomended me a 265/276 dur @.50

 

[crunchie12268]

get the BIGGER cam, more duration, so when it idles, it shakes.... I love it.

 

[bluevenom867]

I ordered my new Cam Motion hyd. roller cam,its 585/604 251*/264* @.05 112* w/1.6 rockers.Its going in a 408 that will spin to 7200.The specs on thous cams are about right for a solid flat tappet.I would go with the Comp Cam,as the duration will really pick you up some power higher up and on the nitrous.