Mild D0VE-C's and nitrous

Need some opinions from you nitrous guys .
Wife said we have a little extra $$$ so I can use some in the Gal. I have an 11 to 1 466, unported D0VE-C heads 2.25/1.72 valve, blended intake bowls (CJ size, port matched to Stealth 8021), thermactor removed exhausts, singh grooves, pretty clean work done. She wants me to get some aluminum heads (bless her heart) but I think a 150 shot of nitrous might be a better investment. Crower cam .540/541 lift, 244/251 @.050 dur. Forged Speed Pro LW pistons, stock crank and rods which have been massaged and lightened 25 grams each, balanced. Shift at 6000 rpm max, no more; 1/8 mile.
I know that with the CJ intake, blended bowls the flow bottle necks before it gets to the valves. Will this bottle neck hurt me with the small nitrous shot or help me because it is slightly more concentrated. Or will the difference, if any, matter with such a small shot. Heavy street car, maybe 5 or 6 trips to the strip per year.
Thanks

You could always put a 150-175 hit (or more) on it for now as it is. Then add Aluminum heads into the mix later if you want to.

150 shot wont hurt a thing......

I'd do a set of Ford Racing CJ heads...... it will be 50hp+ all the time and no bottles to refill.

or if the budget allows upgrade to a set of P-51's.

The Valve relieves are the only issue, by can be done inexpensively.

I like the idea of no bottles to change plus the safety factor, but I had to have my intake valves recessed for piston to valve clearance (my cam is advanced 2* at the crank). That brought the cc's up to 78 and gave me about 11 to 1 compression (flat top pistons @.010 in the hole/ .041 gaskets). I added the singh grooves to make sure I can run pump gas safely. The SCJ heads have 72cc chambers which would give me about 11.8 to 1 compression and would be too much for pump gas. This is my first build and I started out wrong . I could add the singh grooves but am a little squimish about cutting into new heads . And the pump gas 'thing' would my iffy at best. The reduced weight would be great though (4190 lbs without my lardass ).
Thanks for the input guys .

richter69 wrote:150 shot wont hurt a thing......

Mine too????????

not with your luck

richter69 wrote:not with your luck

Whats that supposed to mean? Had good luck with the 302......but didnt give 2 shits if it blew up either.

GT300TD wrote:

I like the idea of no bottles to change plus the safety factor, but I had to have my intake valves recessed for piston to valve clearance (my cam is advanced 2* at the crank). That brought the cc's up to 78 and gave me about 11 to 1 compression (flat top pistons @.010 in the hole/ .041 gaskets). I added the singh grooves to make sure I can run pump gas safely. The SCJ heads have 72cc chambers which would give me about 11.8 to 1 compression and would be too much for pump gas. This is my first build and I started out wrong . I could add the singh grooves but am a little squimish about cutting into new heads . And the pump gas 'thing' would my iffy at best. The reduced weight would be great though (4190 lbs without my lardass ).
Thanks for the input guys .

The SCJ aluminum heads will in themselves allow you to run maybe up to 1 1/2 points more compression if prepped correctly. and the max flow (.570) on the SCJ's are close to your max lift on your cam now.

IDT-572 wrote:

GT300TD wrote:

I like the idea of no bottles to change plus the safety factor, but I had to have my intake valves recessed for piston to valve clearance (my cam is advanced 2* at the crank). That brought the cc's up to 78 and gave me about 11 to 1 compression (flat top pistons @.010 in the hole/ .041 gaskets). I added the singh grooves to make sure I can run pump gas safely. The SCJ heads have 72cc chambers which would give me about 11.8 to 1 compression and would be too much for pump gas. This is my first build and I started out wrong . I could add the singh grooves but am a little squimish about cutting into new heads . And the pump gas 'thing' would my iffy at best. The reduced weight would be great though (4190 lbs without my lardass ).
Thanks for the input guys .

The SCJ aluminum heads will in themselves allow you to run maybe up to 1 1/2 points more compression if prepped correctly. and the max flow (.570) on the SCJ's are close to your max lift on your cam now.

Is a few bucks for a set of dished pistions out of the budget?

dfree383 wrote:Is a few bucks for a set of dished pistions out of the budget?

Only have about 500 or so miles on the motor and it's been balanced, hate to have to start all over. It took a long time and a 'couple' mistakes.

paint the heads to look aluminun and put the bottle on and go have fun... it takes alot of money to get 150hp na but the bottle is cheap and u can use it if u do step up to the aluminum heads

Nitrous FTW when more money is available I'd do heads and a custom solid cam and that should be good for 75hp.

You don't need to spray a 150hp hit start out with a 50hp hit... You will be surprised there isn't much different a couple 10's and you can run pump gas for sure...

A couple tenths between a 50 and 150 hit   your kit might not be working right then if that's what you meant.

nuclearcobra wrote:A couple tenths between a 50 and 150 hit   your kit might not be working right then if that's what you meant.

You mite be right running a tune of 42n 36f for 50hp 65n 52f for 150hp... Tunes giving to me at Drag week by Monte Smith... The setup i'm running is a dual stage by NOS . Have run the tunes in in a single stage system with same results 2-3 tenths

Maybe I am wrong , I have to dig up some time slips then , I swore I picked up more than 2-3 tenths from a 50 to a 150 , then again every combo reacts different so I take back my first reply , years ago I went from 13.80 to 11.60 with just a 125 shot , but that's a on a slow car , my big block car last year went 6.39-6.40 on motor down to 6.13 in the 1/8 with a 125 shot.

I run a best of 11.40 on motor and a best 10.54 on a 150hp and 10.80 on 50hp these are my best... normal motor run 11.60 150hp 10.80 50hp 11.10... 3900# truck 472

GT300TD wrote:
Need some opinions from you nitrous guys   .
Wife said we have a little extra $$$ so I can use some in the Gal. I have an 11 to 1 466, unported D0VE-C heads 2.25/1.72 valve, blended intake bowls (CJ size, port matched to Stealth 8021), thermactor removed exhausts, singh grooves, pretty clean work done.  She wants me to get some aluminum heads (bless her heart) but I think a 150 shot of nitrous might be a better investment. Crower cam .540/541 lift, 244/251 @.050 dur. Forged Speed Pro LW pistons, stock crank and rods which have been massaged and lightened 25 grams each, balanced. Shift at 6000 rpm max, no more; 1/8 mile.
I know  that with the CJ intake, blended bowls the flow bottle necks before it gets to the valves. Will this bottle neck hurt me with the small nitrous shot or help me because it is slightly more concentrated. Or will the difference, if any, matter with such a small shot. Heavy street car, maybe 5 or 6 trips to the strip per year.
Thanks  

Looks like you have the hard part behind you...............  (momma's on board with the new heads)   Hello   Get them bad boys bought.

You can do a bowl blend yourself and pick the flow up a ton 360-370 easy still between .550 and .600 lift. Also change over to a Victor intake.

Like Dfree said valve notches can be made inexpensively.  The FMS SCJ's work very well on a small inch engine. Bowl blended and tuned correctly  you may be surprised how close you could run to the 150 shot.

Was talking to "the man" from Roseville, Michigan at the Spring Swap. Got a plan in place   .

GT300TD wrote:
Was talking to "the man" from Roseville, Michigan at the Spring Swap. Got a plan in place   .

Tha Man Tha Legend.............. SIR MALIC Your in good hands brother.