I havent read of any other members running a Superram on SDPC base with Vortec heads, although I am sure it has been done. So I went a little different route and slapped an SR and SDPC base on some of the new E-Tec 170s. The nasty new combo is listed below:

87 Formula 350: Black on Black with limo tint, OMINOUS
385, zero decked, 10.3:1
Massive P&P SR plenum and runners
Massive P&P SDPC base
Moderate P&P E-Tec 170 heads
Jegs 1.6 extuded alluminum rollers rockers
Comp pushrods, Crane roller lifters
Comp XR276HR-12 224/230 .537/.544 on 1.6 rocker
Edelbrock Victor double roller chain
Melling high vollume pump
Walbro 340 high PSI pump
24# SVOs with TPIS AFPR
Accel 300+ ignition and coil
Taylor spiro pro wires, custom cut for no slack
Headman shorties with primaries matched to felpro 1404 and y-pipe modded out to 3 inch
500ftlb/500hp capable built 700R4
Vigilante 3000rpm stall
Auburn Pro posi
Richmond 3.73
Ultimate rearend girdle
Spohn SFCs and LCA relocate brackets
Lakewood panhard bar and LCAs
ES poly everywhere
17x9.5 Centerline Billet rims with 275/40ZR at all 4 corners
Plus a bunch of other tidbits Im sure I forgot.

Motor will be dialed in via factory 165 ECM, DIY EEPROM, and DIY WB-O2

Parts to be upraded in August:
27x10.5 inch ET Streets
Hooker coated longtubes
BMR trakpak

Nitrous Express kit sometime after first 5000 mile on motor.

 

Car

 

engine bay

 

motor

 

clearance for 400 crank

 

chamber and bowl work on heads

 

heads with stainless valves and P&P chambers

 

ported intake runner showing gasket match

 

ported base and SR runners

 

385, intake, fuel rail

 

jegs 1.6 roller rocker, ported base

 

385, 700R4 with vigilante

 

more 385

 

more 385

 

Holy Crap

Damn that looks nice. Looks like it should be a killer combo. Love the pics of everything. I've heard a lot of dissappointment with the E-Tec heads but I'd love to see how they perform with your combo. Break that bad boy in so you can get some numbers to show. Looks *** man!

 

It was a pretty calculated choice to run the E-Tec 170, I in no way plan to be disapointed! Do you have a personal experience with the E-Tec head? Not to many folks running them as they are a fairly new product to the market and those who do own them and report actuall real world experiences have nothing but really decent numbers to post. Even the magazines are putting up some real healthy numbers with them, weakest combo I have heard of date was mild 350 putting out 400hp. Hopefully you can bring me up to speed on the details of all the disapointing stories you have.

Its just that if you plan to offer criticism I would hope you have some hard data and experience to back up your claims Vs. just throwing in your .02 worth.

No hard feelings though! Heck your even in AZ, you outa come up to Phoenix in Sept when the project is complete, theres gonna be quite a few of the Phoenix boys watching as I go gunning for the 11's NA with the total package.

Thanks though for the praise on the looks. I spent a little bit of time buffing out the SR, I bought it used and it was as dirty and grimy as a pig in slop when I first took delivery of it. I was hoping the red accents with yellow wires would have that jump out effect, cant wait to get it planted in the engine bay with my red Hotchkiss STB.

 

Oh you guys have no idea. I've been around their garage watching this for about 6 weeks. Every detail is handled.

I'm as hopefully skeptical as everyone here but he has engineered the deal very carefully. It's almost like a continuation of Magnum TPI. OMINOUS may have created Frankenstein here.

My take:

He's in very serious traction trouble. Hooking that thing will be about as successful as my 150 pound *** trying to drag off a 30 foot anaconda.



Seriously though guys he gets to do some really cool factual tests with his car and find out stuff like how much 1 5/8 headers hold back the motor over 1 3/4 long tubes, and how much the stock TB can really support.

:hail:

 

wow looks just like my 412! see the sig for the real deal on it. for a link to the photos not added to my site check out THIS!

 

Sweet! We're gonna have all kinds of nasty big cube SR combos rolling around now!

 

Looking good. I'd be interested to see how it runs.
I've never heard of E-Tec heads, you say they are new? Does the 170 refer to the port size?
I hope your tranny holds up. Rated at 500/500 may not be enough cuz you should be putting out close to 500 TQ (about 400 at the wheels).
I assume you plan on running 11s with the NOS right and not N/A?

 

Beautiful setup! Quick question though, which wire serperators are those? They look good on the motor! Can't wait to see it in the car. good luck with it

 

I've heard and red some good comments and info on the e-tec heads and they flow pretty good for their size. The only thing that makes me wonder is what was the point of Edelbrock going with the vortec intake bolt pattern? The only reason I can see is to sell more of Edelbrocks Vortec style intakes, other than that I've heard they're great heads.
Great motor by the way.

 

86IROCNJ

Wire seperators are are R&M billet. I bought them here in AZ at a local speedshop. They are a available through summit, I paid 40$ for the set. I also bought a 5$ set of plastic seperators at Checker Auto, that is what you see pinching the wires together at the plugs and providing management behind the valve cover.

DannyT, SOLID LIFTER

The E-Tec head is about 1&1/2 years old. The reason for Edelbrock engineering these heads had multiple reasons. Yes of course selling Edelbrock stamped intakes and having a set of heads to match was part of the reason. But at the same time the features of these heads were shared and spread across the dated Edelbrock product line. The Performer RPM heads were updated with a very similair, highly efficient, combustion chamber about 6 months after the release of the E-Tecs. My guess is that all the modeling for the E-Tecs and the new Performers was done at the same time but the actuall disclosure of the Performer change was late so national stock could be sold off to avoid preference picking by consumers for the new design. Within the past few months Edelbrock has released an LT1 head. Guess what, it also has an almost exact replica of the E-Tec chamber that is a bit smaller, 54cc Vs. 64cc, and a modified spark plug angle. Enough about the combustion chambers, the pics show all the details, I did not perform much work in the chamber beyond an all incusive polish job as a properly decked block and polished combustion chamber make for an extremely efficient and detonation resistant combustion process, the casting was very impressive out of the box I could have left it alone but I really want to squeeze this combo for all its worth. Like the Vortec/Fastburn heads the E-Tecs also have a raised and redesigned intake runner. The raised runner alows for a modification in the intake air entry angle which then allows for a redesign of the intkake runner floor to nearly eliminate the hump before the short side radius into the bowl found in a standard 23 degree head. The updated intake runner in the Vortec/E-Tec designs allows a cleaner air path into the bowl so cfm flow inreases while still allowing for a very narrow runner cross section so port velocity is not just preserved but actually increased. Hope this all makes sense!

DannyT

The intake runners were speced at 170cc out of the box, they aslo make an E-Tec 200. I have roughly 12-15 hours of porting into each head, I imagine they are around 185cc or so now on the intakes runners. The juice will be for sh__s and giggles once the rings get roughly a years worth of break in time and 1/4 mile flogging. I plan to roll into the 11s NA, 11.9 NA or bust!

Getting kinda late and the beer is clouding my ability to give further details on the combo, any other questions just ask.

 

Looks great! Be sure to clear coat or clean that set up - it does corrode easy.

 

Rosco

What do you mean by clearcoat or clean? I definitely dont want any corrosion! Are you talking about the intake?

 

The intake ports on the heads look a little rough. Who ported the heads? I wish I had pics of my Stage III vortec's. Next time I have to pull the intake off (hopefully it will be a LONG while), but if and when I do, I'll post pics with measurements and flow numbers.

 

OMINOUS - you have mail.


Mike

 

The pics overall are crapy, disposable camera and scanner, its all I got. I did all the porting myself, the pics dont do the end results justice, i have about 20 closups that all turned out like crap because of the poor camera. Also had a bunch of close ups of the rest of the intake as well. I really wish that the pics of the modified injector bosses in the SDPC intake runners turned out nice, I removed about 2/3rds of the alluminum from those gross castings and would loved to have shown a before and after. I would recomend some serious porting work to anyone who owns or plans to buy the SDPC base. The base is kinda rough out of the box but has alot of potential and extra material to port with, the bosses for the injectors have to be some of the worst casting processes I have ever seen, right up there with the out of the box SLP runners port openings. Hell even the external finish casting pattern of the Superram plenum was terrible, looks like it was cast in a childs sandbox. On a positive note though the casting of the stealthram we put on my buddys car, esams, was very nice and clean right out of the box.

1bad91z

How was your SDPC base? How did the injector bosses in your SDPC base look? How much of the boss material did you remove?

Thanks for the email gift!

 

No problem!

My base looked great out of the box! The injector boss's were perfect. The only things I did to the base was port match it to the lower runner openings and I slightly port matched the base's ports (where they mate to the heads). Over all, the base looked damn good, even out of the box. I didn't have to remove all that much material to match everything up.

Now the SLP runners on the other hand, I have about 10 hours of my time in them! In retrospect, I should have bought the AS&M Large tube semi-siamesed runners.

Mike

 

Thanks for getting back to me OMINOUS! I found them through Summit. Later man

 

86IROCNJ

Did you buy a set yet? FYI, they sell them with the billet as a standard cut and also with the billet short cut to clear AC compressors. The short cut ones are meant to clear the old style long AC compressors not the harrisons that we have. So buy the standard cut or you might be disapointed as you lose the last "single" wire holder.

 

OMINOUS_87,
Is there a reason you chose the 170cc intake size over the E-tec 200? I would think with the your larger motor, the 200 would have been your choice? The reason I ask is I have a chance to purchase a set of E-tec 200's and I would like more information. How is the Intake to Exhaust ratio on yours. My particular engine combo is sensitive to the exhaust side flow. I really need to insure I am some where in the 70% area with intake to exhaust flow. Do you know where any flow numbers are posted? Hot Rod has used these the E-tec 200's on one of their project motors and the thing made good power.

 

Just seeing this now!!! Thanks for the tip Ominous. So, have you gotten it going yet?

 

wesilva

I am not running a great big cam so I really wasnt all that concerned with running the bigger head. A cam with closer to .600 lift and a carbed single plane or miniram may have better matched up with the 200s. Although I probably could have run them and not given up a whole bunch down low. I wont be spinning past ~5800rpm tops. With the 170s I am garaunteed to see more power lower in the RPM band which is fine as my car will not be spending a whole lot of time at redline as I will not be a regular at the track, street driving and cruising around will be where i spend most of my time. What kind of deal are you getting on the 200s?

Your right HotRod made like 530hp with a 350 and the 200s with a big old solid cam, 254/259 0.562/0.561, not exactly a streetable combo. Car Craft made an honest streetable 400hp with both the 170s and 200s on a low compression 350 with a baby hydraulic cam 218/228 .471/.471. Niether cam was a roller cam.

I am real interested to see the numbers I will put down but that is awhile away as I need to redo the whole exhaust, break in the motor, and wait for this heat to pass damn 110* every day now!

You can get flow numbers at chevyhiperformance.com or at the edelbrock site.

86IROCNJ

She is alive and kicking, real hard I must say! I dont have any street time on the car yet as I broke 2 of the trns crossmember bolts of in the frame when i dropped the trans. Just got those suckers drilled out and retapped last weekend, at my friends garage who just so haapens to have his own lift. This weekend we will finish retrofitting and reconditioning the AC system and then trailer her back to my house. Then its off for an alignment as the entire front steering linkage was replaced with Moog parts and the springs were cut down half a coil to lower the car slightly. Then I will take her out to tear up the streets a bit but then shelf her again for a week or so as I will be replacing the entire exhaust as I just recieved my Hooker coated 2210s and full Mufflex/Spintech exhasut setup.

Nothing but fun all this work is I tell ya! I will post some updated pics soon along with some audio and video provided that someone will host it for me, once the longtubes and big exhaust are in.

 

On the edelbrock website!
http://www.edelbrock.com/automotive/index.html
Click on cylinder heads on the left side, then scroll down to flow data.
Good luck!

 

Hey OMINOUS, one more question if you don't mind. What y-pipe are you going with? I emailed Mufflex and they want $750 for the y-pipe, exhaust pipes, and a spintech muffler with the single turndown. Now, i think this is a bit high, especially if the y-pipe does not fit right! They quoted me $850 for the muffler with dual tail pipes!?!? That sounds absolutely wrong. Let me know what your plans are. Personally i would like to go with that set up, but it is a bit high IMO for something that will need more work on it to get it to even fit correctly. For $900 i could probally get a pretty damn good custom exhaust set up done and still buy a spintech muffler. Last time i checked the mufflers were pretty cheap from Spintech. Please, any advice or insight would be cool. Thanks for your time-Bryan

 

86IROCNJ

Cant offer much help here! I picked up the entire exhaust used from headers to tips used as a complete package, for a pretty fair price. On the setup I have the y-pipe was fabbed up by a shop with 3 inch non-mandrel bent pipe and a matching flowmaster y-collector into the mufflex 3.5 back with dual 3 out spintech.

Its really hard to say if the mufflex fully mandrel bent y-pipe will actually score you any power Vs. a custom non-mandrel bent y-pipe at your local exhasut shop, i doubt it will. Alot of people will only run mandrel bent pipe BC they think they have to ,but in reality 3 inch pipe bent by a compitent local shop will never drop in diameter below 2.5 inch which is more then big enough to support alot of power. The guy I bought my exhaust from put down 575hp to the rear wheels with a hotcam 350 and small blower charge through the exhaust. It will be some time but I plan to dyno the car both with the exhaust bolted to the headers and without, to find out exactyl how much of a restriction there is if any.Most folks report that the mufflex y-pipe will still require some work from an exhaust shop to install decently anyway. One thing to remeber though is that it might be hard to find a shop to custom bend a y-pipe when there are no cats involved, this is usually risky business for them and they are often willing to turn away the work or just plain jack the price way up to do it.

I hear you though man, the mufflex prices are absolutley insane for new parts. People are really between a rock and a hard place when they want to upgrade to anything bigger then the average mass market 3 inch cat back.

Good luck, and I hope some kind of a deal falls into your lap!

 

What kind of deal are you getting on the 200s?

OMINOUS,
They are sitting on Ebay but I will probably let them pass. I really need a smaller intake port like your 170's. My problem is my particular engine combo is sensitive to exhaust side flow. I really need something strong in that regard...but I need a 58 to 64cc chamber. That pretty much rules out AFR which would have been my first choice. I will look into doing some work on the exhaust side of some Pro Toplines as a possibility. I like the intake flow and the chamber size but like stock Vortecs, they seem weak on the exhaust side. My motor is a driver also.

 

wesilva

What are the details of your project?

 

wesilva

Im not exactly sure how you came to the conclusion that the exhaust flow is weak on the E-tec heads??? One of the best features of these heads is that they outflow stock vortecs on the exhaust side by alot out of the box. Any head that flows an 80% relationship between intake and exhaust is considered to be extremely efficient at filling and exhausting the combustion chamber. The E-tec 170s are shown by CHP to flow at 78.6% while the only other heads in their database near the magic 80% range are the AFRs.

Now is actually a good time to be in the market for a set of new heads, Summit has 10% off all purchases till like August 7, they sent me an email yesterday advertising the sale. Thats how I got my E-tecs last winter, 10% off, 900$ shipped to my door.

 

Oh no! Didn't mean to imply that E-tecs had a weak exhaust. That is the one reason I have been considering them. I just think for the goals I want, the 200's are just to big. My motor comes in at just around 350 CI. Haven't done the math but it is a .030 over 400 block with a 327 steel large journal crank. I am using 6.25" long rods and Sportman flat top forgies. I am trying to duplicate the results from an article I read in Hot Rod, "The 350 Chevy Should Have Built". The article has fed my curiousity about long rod motors and I have been reading everything I can get my hands on since. Long rod motors have a need for strong exhaust flow, something in the 80% exhaust to intake appears to work best. My goals are small....and big. I am looking for 300+ hp at the rear wheels, 400 ft pounds starting at a low 2500 rpm and 20 MPG with a 4:10 gear and a T56. I will be at 10 1/4 to 1 compression ratio and I plan on running low test gas... and on a fairly strict budget. (3 kids in private school). The power goals have been easy to achieve with the 406 that is currently in it but no where near the MPG goal with the same 4:10 gear and a Hanlon built WC T5. Best I have been able to do with that combo is 14 Highway miles.

 

What is your intake plan?

FI will get you 22 plus mpg all day long.

Are you working with a carb?

 

I am starting off with a carb for the dyno runs just for familiarity. The car is an 85 TPI car that the former owner upgraded for a 350. He went to 22 lb injectors and a Holley adjustable regulator. He had a custom chip built but I don't know the particulars. It still is a 85 ECM though so when I address that issue, I will either convert to 86/newer ECM with a custom chip and all the "fun" that goes with that learning curve (setting up a bin, buying the chip burning equip., etc) or I'll have to go aftermarket on the whole electronic package. Holley Plug and Play looks affordable but they have only limited applications.

 

A known combo at the shop where i get work done consisted of a zz4 shortblock, the etec 200 heads, some LT headers, a performer air gap intake, and a carb, with a comp xr274 cam i beleive made 450hp, 430ftlbs... with a nice torque curve to go with it...

they are very good heads, albeit the weak springs they come with....

 

Hence the upgrade to the Comp 987 kit.

 

fb305svs

Thats sounds right. 350 Vortec motors with that cam intake combo put down ~440hp all day long, would be real interesting to see the curve with the 170 heads.

I am real interested to see what I put down with the 385. I am looking for ~450hp and an ungodly tq curve to go with it.

Anyway, havent touched the car this week. Its been so damn hot and summer school is kickin my ****! Finishing up the AC retrofit tomorrow along with an alignment and then it is off to go **** in the wheaties of Cobra and LS1 owners!

 

You might have toruble seeing that for a hp number.. but who cares? you gonna have more torque than a 1000hp mk4 supra

 

huh, I'm watching......... always need new ideas.
OKINAWA T/A