The SY-1 or Smokey ram was a single 4 barrel crossram intake that was built by Edelbrock designed by Smokey Yunick.
Anyone ever use one or using one now?

They're not any good except for a very narrow mid range rpm band.I've had a couple friends try them on drag cars back when they were still floating around and they suck.They look cool though

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1978 Z-28 purchased new by me -$6750
Click here (http://f1.pg.photos.yahoo.com/ph/someonehasthisid/detail?.dir=/d752&.dnm=aefd.jpg) to view present state photo
Look above for glory days.
1994 Formula
1982 350 S-10

found one @ a local swapmeet last saturday $300.00

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1972 chevy camaro ss 350 sbc 425 hp/356 @ the wheels,350 trans,373 gears,daily driver with restification in progress for that old school day 2 look ------- future plans- turning it into a baldwin motion Z30 clone
"IF IT'S TO LOUD YOUR TO OLD"
------------------------- my new toy : #'s matching 1969 nova SS L78 396/375hp M224spd,dark green ,black interior

The guy on ebay I bought it from had 20 of them not any more all gone.
Here is a copy of the email.
""over the years i collected as many of those manifolds as possible as i had a couple of race boats and these manifolds worked great because you needed the torque you couldn't get with a single plane manifold. a buddy of mine owns shreve racing engines and we dynoed over 50 engines with the sy1 manifold. we found it works best with about a .500 inch lift cam and small chamber heads {50cc) 780 cfm holley. this manifold also likes a decent compression ratio. on a street motor the compression needs to be as close to 10 to 1 as possible. 9.85 to 1 worked great with a 780 holley. as you lower the compression ratio the fuel has a tendency to puddle and run rich at anything below 3000 rpm. at 9.85 to 1 we had no detonation at all with premiun pump gas. it was perfect. about a month ago i gave a friend one of these manifolds and he put it on a stock zz4 crate moter and gained 18 horsepower and 38 ft lbs of torque. pretty impressive for no other changes. edlebrock quit making it due to clearence problems. good luck, none of your friends will have one neither.""

I will be running this intake as soon as I get the heads ported (another post).
We will see what kind of power it makes.
I found another one locally for about $350. One on ebay went for $495 ouch. There are a few Z28 crossrams and they are getting up there in price.

Sure! Go over to Team Camaro and do a search for SY1.

pdq67

Those old Z28 crossrams (dual quad) are getting stupid-expensive. I saw a crossram on Ebay for $15,000 with like 11 bids, and reserve wasn't yet met.

Thats insane.

<font face="Arial,Verdana" size="2">Originally posted by Air_Adam:
Those old Z28 crossrams (dual quad) are getting stupid-expensive. I saw a crossram on Ebay for $15,000 with like 11 bids, and reserve wasn't yet met.
Thats insane.</font>

yeah, for that price, you could probably have one custom-cast!

Did you look up SY1??

pdq67

Did a search on Team Camaro. I found 53 items with "SY1". I did not have time to check them out. But I will.


http://www.camaros.net/cgi-bin/forum/ultimatebb.cgi?ubb=search_tng&d=results&record=2453298-184815-4R5J

I will look later for info.

[This message has been edited by f-body (edited October 19, 2004).]

Well heck,!!

just start a new thread and ask SY1 whatever you wanna know and please tell him, pdq67 sent you looking for him..

Thanks,

pdq67

For some reasone I had some trouble finding things on the site still looking. Found a few things but not a lot more than I all ready knew. The general info on this intake is it does not work, or takes a lot of work to get to work right. Since I am not going to spend the $200 to get a RPM airgap which seems to be the best intake to date even more powerful than the Victor Jr. across the entire rpm range (the Vic Jr. makes a few more top end very few more). This intake should make more torque. Since I should be able to rpm to about 7000 rpm I think it will work.

f-body,

I just posted over at Team Camaro and asked SY1 to follow this link over here for questions about the SY-1 intake..

pdq67

I received this in am email from an ebay member selling selling an SY1.

""In 1972 my dad gave my bother a 1964 chevy big window pickup. At first it had a 283 with a powerglide. At that time i was working for a pontaic dealership and i order a complete z28 302 engine and a muncie m22 for it. ( you talk about pricing that whole engine and trans cost around $1500). Anyway he order that intake for the engine and installed it on the engine using a holley 3310 (that was the hot carb at that time). At first we didn't think it was worth a $h!t but after finding out that we were not getting full throttle ( i adjusted it wrong) the truck ran like a bat outa hell. The engine was a stock 69 302 with headers and a 12 bolt 411 rearend. Before he sold the truck i removed the intake because i liked it so much. I was going to but it on different cars that i have built over the years, most recently my wife's resorted 67 camaro rs(thats why i had it repolished) but she didn't like the cowl induction hood that i would had to put on for clearance.""

In Chevy Rumble January 2004 issue there is an article on 1967 Z28 documents. Well on page 28 there is info that says the stock Z28 302 with 4 barrel carb was good for 7.85 in the 1/8mile.
A switch to the 2x4 cross ram lowered the quarter mile time of the 302 to 11.78 seconds at 118 mph.
Now I dont know but 11.78 in the 1/4 mile is pretty fast. I know a lot of big blocks on this board not running this fast. I know it was a first gen which is lighter and the 302 is a small engine with a lot of rpm potential. This is also a 2x4 cross ram but it kind of ruins the idea that the cross ram is a road race manifold only.
I have also read that the 302 makes no torque below 3500rpm and that would make it difficult engine to drive on the street and also the reason GM never offered the 67-69 Z28 302 V8 with any other transmission than a 4 speed.

I guess if I get my stuff together and get my heads ported and the 350 back together I will see how well it will run.

there is a guy who i see regularly at a car show.he has an all original 69 camaro Z28 with a DZ302 sbc that is factory original except for the cam ,intake and headers.he's running a smokey ram intake with a 800cfm holley DP and the first generation GM off-road cam 257/269 @ .050 493/512 lift 4200- 7000 rpm.the camshaft and intake were added back in 73 along with the headers. when this guy jumps on the pedal the tires explode in a large cloud of smoke.this Z28 has so much throttle response it's nuts.

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1972 chevy camaro ss 350 sbc 425 hp/356 @ the wheels,350 trans,373 gears,daily driver with restification in progress for that old school day 2 look ------- future plans- turning it into a baldwin motion Z30 clone
"IF IT'S TO LOUD YOUR TO OLD"
-------------------------

I will say this, the ricers have never lived until they have driven a 301/302 with the dumps open, running like 7,000rpm in forth gear across the black-top bottoms road!!

My buddy with the '69 Z car said it this way, "the horses were marching across the bottoms at 7,000rpm"!! He figured 145mph, easy with 3.73's!! And he drove that way as I did with my 350SS/RS car..

Can't do it now, but back from '66 to past '70 or so you could get away with it until they caught you!!

Been there, done that, but DIDN'T get caught!!

pdq67

<font face="Arial,Verdana" size="2">Originally posted by muscl car:
there is a guy who i see regularly at a car show.he has an all original 69 camaro Z28 with a DZ302 sbc that is factory original except for the cam ,intake and headers.he's running a smokey ram intake with a 800cfm holley DP and the first generation GM off-road cam 257/269 @ .050 493/512 lift 4200- 7000 rpm.the camshaft and intake were added back in 73 along with the headers. when this guy jumps on the pedal the tires explode in a large cloud of smoke.this Z28 has so much throttle response it's nuts.

</font>

When you see this guy at the next show give him my email and tell him to make sure he states in the subject line what its about. I need to pick his brain about how he set up the carb.
My email is TS_Racing@hotmail.com
I have thought about a 302 but I wounder about torque. I think a 350 could rev as high with no trouble. I have spun my 350 just past 7000rpm but I would not want to make a habbit out of it. I always had a thing for high rpm when I would plan a engine build on paper. Well I am still just building on paper but I need to upgrade the 350 so maybe its time for a forged crank really good rods and pistons and some huge heads and a 7500rpm redline.

<font face="Arial,Verdana" size="2">when this guy jumps on the pedal the tires explode in a large cloud of smoke.</font>
He needs better tires

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1978 Z-28 purchased new by me -$6750
Click here (http://f1.pg.photos.yahoo.com/ph/someonehasthisid/detail?.dir=/d752&.dnm=aefd.jpg) to view present state photo
Look above for glory days.
1994 Formula
1982 350 S-10

[This message has been edited by Mike-78 Z-28 (edited October 23, 2004).]

The SY1 intake manifold is the best intake to use bar none. I have run virtually every modern single carb , dual and single plane manifolds on my 327 and tuned each to perfection as far as ignition timing and carb jetting. Then made numerous dragstrip passes to validate. The most powerful intake tested until the SY1 was the Victor Jr w/2" open spacer. The SY1 bolted on directly after and without fine tuning yet done ran 1/10th and 2mph faster than the Vic Jr! Fine tuning brought another 2/10ths and 3mph.

The SY1 was designed for a specific purpose and that was to maximize torque off of the turns of a road course when the early SCCA Trans Am cars were limited to a single four barrel carb.

I ran one on the street for about 30,000 miles in my 77.5 Z28. It's 10:1 350 had a set of 461 heads, a Crower cam with 292/301, .480 lift on 107 LSA. I did not have enough gear with a 3.42 or enough stall speed with an 1800 stall.

Bottom end was soggy as expected but very, very strong at 3500 and it pulled incredibly hard through 7000 RPM. Actually, I ran out of nerve before it stopped making power.

The manifold is very difficult to tune for street use due to low RPM wet flow. However, it flat out works great if it is used in the RPM range it was designed for.

I ended up pulling it and replacing it with a Torker II. The low end was not much better (probably due to the cam and low stall speed) midrange was worse and the car lost all of the top end charge it had.

You have to register for this site to view the posts, but it's worth it. Crossfire guys use the bases with a modified top plate to make crossfire injection actually work really well. http://www.crossfire.homeip.net/

a copy of my post from here.
http://www.nastyz28.com/ubb/Forum8/HTML/011163.html

Well the car runs and it runs well. I used a quadrajet just to get it running until I can get the 830 holley rebuilt. I need to get some bushings for the throttle shafts.
Maybe its because i have not driven anything with this much power for a while but the car feels strong, really, really strong. I did not even set the timing. I had hooked up the hoses on the carb and the new MSD vacuum line. Well it would not run worth a dam. New plan plug all vacuum lines plug vacuum line on distrubutor and what do you know it fires up and runs great, well except for idle. I did not even set the timing. Took the car for a ride just up to get some gas and it feels strong the 3500 stall converter eally makes the car work. I got mid range torque like you would not believe. It wont idle well yet but there is not stumble or hesitation at all.
Now I need to get everything nice and neet and odds and ends and I will drive it to work next week. going to the 1/8 mile on the 24 of this month. Post numbers when I get them.

Power Secrets says the intake will not work well with a spread bore carb but seems to work great.

I do go to the cross fire forum a lot, same name there too!

I love the way the engine feels. I never had a stall converter before and I feel that made all the difference. The car has a ton of midrange power. Just wait until i tune it. The drive the other day was done because I was just so excited to have the car running. It never felt this good before. I cannot wait until I get the Holley rebuilt, its an 830 double pumper.

I bought a factory crossram at a local junk yard a few months ago for 100 bucks. I am in the middle of researching it right now. I have contacted Wayne Gwinn, an expert on the crossram. It is looking like the bottom plate of mine is a pre-production piece that might have been on a T/A car back in the day. It is definatly an original,but has no casting date on it, has some non typical (very small) stamps on it, and you can see areas that were still having alu. added to them to improve the areas where the veins were added to help break up puddling fuel. I am gonna fix a small damaged area, and see what kind of money I can get out of it. I really don't have any use for it, and would rather see it end up where it belongs, on a 68-69 302 camaro.Kinda cool..Johnny

The Smokey Ram, SY-1 is one of those pieces of Small block history that will always carry have some mystique surround it. Because of Smokey Yunick's name this manifold will always have legends, tall tales and bench racing surround it.

I LOVE THEM! I've had a few and like everyone else, I've had to learn how to make them work and play alot with building and tuning the engine to work with it.

I'm always looking for more SY-1's and would love to find a good STR-10 to experiment with.

Crossrams are great espcially when you build a good stroker under it! The mid-range torque builds lower in the rpm range and the plenum volume with larger runners don't constrict high rpm flow & power!

If anyone hears or see a good STR-10 for sale please let me know!

Love those short stroke, little old 283/292/301/302 8,000+ rpm motors!!

BUT you gotta have at least a solid cam AND GOOD valve springs to get up there!!

pdq67