New Manifold has arrived......

Tech Related Discussion

Postby Chad Speier » Sat May 29, 2010 7:38 am

mikeyfrombc wrote:nice work Chad , where did you get that fixture you mount the manifold too ?? got anymore pics of it ??


I purchased another mill dedicated for surfacing, manifold milling, etc. The other mill will only be used for valve jobs. The fixture is a Headex, http://headexsystems.com/

I purchased a 1" plate and drilled it for every possible thing I could think of!

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The other fixture is a cpmotors on my other mill. http://cpmotorworks.com/ForSale/CPMHead ... fault.aspx

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Postby mikeyfrombc » Sat May 29, 2010 11:59 am

YOU ARE THE MAN!!!!!

thank you so much i need to either build something like that or purchase one .

thanx again

mikey
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Postby kingjack » Sun May 30, 2010 2:28 pm

lookin good chad. How much longer before you are finished so we can get some performance results?
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Postby Chad Speier » Thu Jun 03, 2010 5:08 pm

I have some touch up, sizing, and hole drilling, but it's close!

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Postby Chad Speier » Fri Jun 04, 2010 3:02 pm

Ready. Bill will have it mid next week.

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Postby SB2NOVA » Sat Jun 05, 2010 1:47 pm

Chad the work looks awesome as usual. I cant wait to get the Speier stamp on my SB2 stuff. Ill be in touch!
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Postby Hammons Motorsports » Sun Jun 27, 2010 9:06 pm

Work has been killing me, but I have made some headway.....Manifold is complete, ready to install (spacer to the Terminator throttle bore and scoop height), just needs an angle adjustment on the intake flange and we are off.



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Looking for racing in Cali as we are done until the end of August here....
Bill and Cindi Hammons
Hammons Motorsports

95 Spizter, 421" SB2.2, 1.041 60', 4.76 @ 142.85
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Re: New Manifold has arrived......

Postby Hammons Motorsports » Sun Nov 06, 2011 9:05 am

This has been a long time coming for various reasons....

We got the car out to a good track yesterday. Pulled it off of the trailer and ran .005, 1.063 60', 3.066 330', 4.778 @142.92 off the trailer with a DA of 1236'

Then 5 more passes tuning fuel, Changed leave rpm up from 4100 to 4400 and shift from 7400 to 7600 on the second pass for the rest of the session.

DA Predicted et from first run 60' 330' ET/mph notes

Pass 2 1414 4.779 1.0519 3.052 4.768/142.51 4100->4400 launch 7400->7600 shift, reaction .020

Pass 3 1540 4.781 1.0539 3.046 4.753/143.32 Main pill .096->.100, reaction .002

Pass 4 1529 4.781 1.0551 3.049 4.758/142.89 -.25->5.25 psi rears, pulled fronts out of beams, track better, reaction -.013, main pill .100-> .102

Pass 5 1613 4.782 1.0431 3.039 4.743/143.41 +.25->5.5 psi rears, reaction .008

Pass 6 1660 4.783 1.0631 3.058 4.766/143.66 Same as previous, lifted fronts out of beams, carried 30 ft, reaction -.011, needs more weight in nose

It is not often that any of us get to test with the DA this consistent. This really let's you know what your changes are doing, and how effective they are. Still running a bit fat, there is more tuning here with tire pressure and nose weight. Talking with the previous owner of the car, we should be able to see 1.02 60's with tuning and moving weight around.

We have picked up considerably with this manifold. One of the reasons that this feed back is late, is that we hurt the engine over a year ago in Las Vegas. It is back together right now and super safe on the overall tune up. Compression is down from 14.3 to 13.8 with thick head gaskets to ensure all is well. So the improvement is more than it may appear. The previous best run on the old set up in this car was 4.76 @ 142.85 with a 1.041 60', was at this very track also, in 600' air, so this is a fair comparison of performance. You can really see the changes in the mid/down track performance on paper, but in the car, it is smooth, not 'peaky' like many set ups. If it continues to run this well, we may just leave it alone!!

Thanks Chad, YOU ARE THE MAN!!!
Bill and Cindi Hammons
Hammons Motorsports

95 Spizter, 421" SB2.2, 1.041 60', 4.76 @ 142.85
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Re: New Manifold has arrived......

Postby Chad Speier » Tue Nov 08, 2011 8:46 am

I'm happy for both you and Cindi. I know how much you love this sport!
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Re: New Manifold has arrived......

Postby Hammons Motorsports » Sat Nov 17, 2012 6:23 pm

Well after a frustrating year of trying a new tire, and make it work with our stuff...we made the trek back to Ohio Valley Dragway from the Fort Wayne area last weekend to look at our baselines again...

We tried to run the Goodyear 2070 tire and tried everything under the sun, converters, gear, timing curves, launch rpm... the list goes on. But we only made about 75 passes this year, 18 on one Saturday night with the stars aligned and we got real lucky on a double entry and we to the final...only to not get down the track clean on that pass. It was all over the place...

The issue...trying to manage the torque that this thing is making with this new manifold...what a problem to have... :wink:

The tire is lighter, shorter and used on many small block dragsters...

Well, we made 4 passes on those tires last weekend, and did not get a clean pass, but did make a 4.83 @ 145....with a 1.12 60 ft. with a big 'wiggle' to 150', but the others were all over the board, and one shook so hard it shut off the power.

So it was me and my daughter, and she looked and me and said, "PUT THE BIG TIRES ON IT DAMMIT!!!"

So I put the big Mickeys back on it, made no other changes and it lifts the fronts out of the beams, -.030 red, lightly touches them down at 30 ft, and smooth as glass run 4.73 @ 145 with a 1.04 60'. I could have made a peanut butter sandwich on that pass.

That was our quickest and fastest pass ever, with the tune trying to get the 'little' tires down the track...and it lost et pulling the fronts out of the lights. Car usually slows .025 when it pulls out of the lights, but this was huge difference with lights at .010 for the previous 4 passes.

The speed is what surprised me though, it maintained with the big tire. 14 lbs per tire heavier plus the difference in the wheel weight.

Since we did some tuning on it, it is definitely better than last fall. The torque is up, HP is up, and the tuning window is bigger with this manifold on it.

I am also able to control the heat in the cylinders so that I can run higher average egts 1150*, and have actually taken the radiator out of the car. The water temp leaving at 170, puts me back at the trailer at 180 with only the water pump, plumbing, and surge tank...

Everything is looking good, car is in the garage, rockers off, and put away for the winter...

Thanks Chad for the Great Performance!!
Bill and Cindi Hammons
Hammons Motorsports

95 Spizter, 421" SB2.2, 1.041 60', 4.76 @ 142.85
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