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 Post Posted: Tue Jul 29, 2008 5:49 pm 
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Location: Montgomery, Alabama
Coloradoracer wrote:
Forgot to ask, who made your rods?  I'm assuming they are Ti?

Mark


Mark,
Those are Arrow Billet steel rods.


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 Post Posted: Tue Jul 29, 2008 6:36 pm 
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Joined: Sat Oct 21, 2006 11:41 pm
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Location: Morrison, Co
Thanks Scott.  Do they have a website?


Mark

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 Post Posted: Tue Jul 29, 2008 6:49 pm 
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Coloradoracer wrote:
I think my computer is gonna short out from all the drool.......  Pretty cool to see the heads compared side by side..........Other than the weight difference, how much difference in HP was there, given the same shortblock?


Mark


Mark,
Or 23° combos were maxed out. We were getting every penny's worth of power out of them.

Ask anyone that watched our car run and you would swear it was a big block.
2500 pounds on injected alcohol it would run upper 5.50s to low 5.60s in the heat and low 5.50s to an occasional 5.49 in the mineshaft air.


The SB2 added 120 pounds to the car. Electric fuel pump, external oil pump, Nitrous system, plumbing put the car at 2620.
We took out the 5.13 after we shredded it on the third pass and put in a 4.86 so it would like the Nitrous because we were gearing up for the 5.30 heads up class.
The engine was built with Nitrous pistons and rings for the possible abuse plus we decided to run gas instead of Alcohol.
The first pass on the new engine went 5.41 @ 127 on a test track surface spinning the entire run.
The next day it settled in at 5.50 @ 124. That told us the converter is way too tight because it's so much faster spinning the tires.
It really needs a tight 7" because we are stalling 7000 on the 8" with a negitive fin angle. This motor wants RPM!

Last week in 3500' DA it was xeroxing slips all the way to the final with a 5.58 @ 123.70

We are tired of testing and want to go rounds so the testing is over for now. Later this year we will go back to injection where similar combos are running 5.30s.
That should bring the peak torque down where this converter will be happy.

Some more proof that the combo is off. 5.55 all day and then throw 100 of spray at it .4 out until the finish line and it goes 5.24 @ 132!
To come alive like that with only 100hp tells me there is tons left on the table.


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 Post Posted: Tue Jul 29, 2008 6:52 pm 
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Coloradoracer wrote:
Thanks Scott.  Do they have a website?


Mark



No Mark they don't.
They are busy with cup rods and really don't care about internet presence.

Just the 270,000 PSI rod bolts were 700.00

I'll have to dig the paper work out. They are somewhere in Texas.


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 Post Posted: Tue Jul 29, 2008 8:06 pm 
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Thanks for the info Scott.  That's pretty impressive performance!!  From the sounds of things, it responded really well to the nitrous.  Do you spray it with the injection setup as well?  I want to convert my dragster to injection, but not sure if I should or not.  I've been told that nitrous doesn't work that well with methanol.  But then again, E-85 is only $2.85 a gallon here, so i'm thinking about going that route as well.  Decisions, decisions................Do you think you've got a 4.90 something in the car?  

Mark

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Speed Kills, But It's Better Than Going Slow!!!
http://www.livinthedreamracing.com


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 Post Posted: Tue Jul 29, 2008 8:18 pm 
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Mark when we put the injection back on we will enrich with Gas.
I run Q 16 through the carb and through the NOS system.


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 Post Posted: Fri Aug 22, 2008 6:49 am 
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Location: Las Vegas, NV
Here is my sign up post...

Scott, you will be happy with the increased torque!

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Bill and Cindi Hammons
Hammons Motorsports

Old age and treachery, if we only knew then what we know today.....

95 Spitzer, 1.041 60 ft, 4.76 @ 142.85, 1740 lbs, 421" SBC


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 Post Posted: Fri Aug 22, 2008 6:51 am 
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Location: Elizabethtown, KY
Welcome to the Site Bill and Cindi \:D/  \:D/  \:D/  \:D/

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6.7772 @ 101.51 1/8th 10.747 @ 122.24 1/4

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 Post Posted: Fri Aug 22, 2008 2:00 pm 
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Location: Newville PA
Scott,

 Too bad you did not have a set of 18 degree high port heads also to compare. Like a 3 step start to finish 23-18-SB2.2. The ports on my 18C head from Brodix are pretty high,but I do not think they are as raised up like those SB2.2.Bob


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 Post Posted: Sat Aug 23, 2008 7:48 am 
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Thanks Steve, I am back in Bardstown KY picking up my stuff this weekend. Leaving loaded for Vegas this afternoon.

As far as the 18* stuff goes, there are a few sets at Ohio Valley Dragway, and those engines look very 'short' in comparison when beside our dragster with the SB2.2 stuff.

The line of sight is much better on the SB2.2 plus the 11* and 8* respectively of the valve angles plus the 4* splay really makes a difference in the torque and power curves.

Haven't seen too many in line valve heads that flow over 400 cfm at .700.

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Bill and Cindi Hammons
Hammons Motorsports

Old age and treachery, if we only knew then what we know today.....

95 Spitzer, 1.041 60 ft, 4.76 @ 142.85, 1740 lbs, 421" SBC


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 Post Posted: Sat Aug 23, 2008 8:13 am 
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Bill I had the weirdest thing happen last week which was another sign there is a bunch left!
I bumped the N20 at about 330' just because it was a heads up run and I was behind.
Well it felt like the Nitrous didn't let off! Just a little short burst of the N20 put the motor into it's happy zone and it felt like the Nitrous stayed on. I went 3 under on the brakes.  =;

Got the injectorator throttle body back from Race Chrome.
:-$


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 Post Posted: Sat Aug 23, 2008 8:34 am 
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Don Kowalsky at www.Kowalskyracing.com built an 18*SBC that made 932HP and those heads flow over 400.  Not sure what lift though.  That engine will run 4.90s in his door car, which is for sale here.

http://www.racingjunk.com/post/1261022/ ... deal-.html

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 Post Posted: Wed Aug 27, 2008 10:39 pm 
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Location: Las Vegas, NV
Hey Scott!!

Your stuff looks great.

I truly believe that when you start to get close with the tune up you will be amazed.

I finally started to have the opportunity to tune on ours since getting the injection back. The last pass we made pushed the convertor on up to 6900 rpm, so it is getting back to being happy as it was in the Vega. Now just need to work on the shift point, 7200 is a little low now, and lean outs for running 1/4 mile.

As far as HP, we were right at 800 at 6800 rpm on the dyno before tuning it to run up. Most 18* stuff that I have been around seems to like to be turned up pretty hard.

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Bill and Cindi Hammons
Hammons Motorsports

Old age and treachery, if we only knew then what we know today.....

95 Spitzer, 1.041 60 ft, 4.76 @ 142.85, 1740 lbs, 421" SBC


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 Post subject:
 Post Posted: Tue Oct 14, 2008 8:34 pm 
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Scott,

I noticed a set of stainless headers in the background of one of your pictures.  Who's headers are they?  Everything looks great!


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 Post Posted: Mon Dec 01, 2008 6:40 pm 
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Joined: Sun Nov 30, 2008 8:23 am
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Location: Camanche IA
Thanks for the comparison. I'm new here but I think I have some reading to do. I'm currently talking to a guy about buying his sb2.2 heads for the next build. Is there anything I really need to know before I get them?

Thanks Mike


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