First I just want to say thanks to everyone who gives their input. Beginner here, and I ask alot of questions. This forum is great.

My question is, which do you prefer, and for what reasons?

Save the wave!

 

super ram its on mine :D :cheers:

 

:iagree: Superram = Proven/available easily/doesn't need custom work to fit on the corvette/emissions legal. :thumbs:

 

I vote for this thing :yesnod:

 

your decision should be made on the rpm range you chose to get your power in, and that max power level you chose to reach, what other mods are planed, and the cars gearing and ultimate use. BOTH ARE GOOD INTAKES, IVE USED BOTH,I chose the STEALTH RAM

http://fasterdeals.com/vette/index.html $774 plus small base hei ignition



http://www.jegs.com/cgi-bin/ncommerc...19&prmenbr=361
$1339

the HOLLEY STEALTH RAM FLOWS at 275cfm out of the box, can easily reach 300cfm with minor port work the stock TPI has a hard time flowing 230cfm even with minor port work, look here
most of this info is right off the accel,holley,edelbrock, and TPIS sites, add a little math and the results become much clearer!!!
GETTING YOUR Intake....... length ....... port in -- out
Stock GM Base--- 6.375"------ 1.47"- 1.96x1.2
TPiS base------ -6.125"------ 1.75"- 2.09x1.28
Accel base----- -6.125"------ 1.75"- 2.09x1.28
Holley base------- 6” runner 2.3”- 1.9”x 1.23 (2.337 sq inches)
Runners
Stock TPI----- -- 7.250"------1.470" round(1.70 sq inchs)
SLP ----------- - 6.625"------1.600" round (2.01 sq inchs)
Accel LTR------- 6.625"------1.615" round (2.05 sq inchs)
TPiS----------- 7.625"------1.660" round (2.168 sq inchs)
Mini ram -----3.5”
LT1 ----------3”
Runners (measured individually)
Stock....................203.17 cfm
ACCEL................242.02 cfm
Extrude/ACCEL...275.83 cfm
Super Ram............289.18 cfm
Intake manifold with 3/8 inch radiused intlet
.............................222.45 cfm
Holley stealth ram ………..275cfm
Stock intake manifold with runner
Stock....................198.72 cfm
ACCEL................213.52 cfm
Extrude/ACCEL....217.11 cfm
Super Ram............220.67 cfm
Holley stealth ram …..275cfm

ACCEL Hi-Flow intake manifold with 3/8 inch
radiused inlet.........251.51 cfm
ACCEL Hi-Flow intake manifold with runner
Stock....................215.83 cfm
ACCEL................232.53 cfm
Extrude/ACCEL....243.21 cfm
Super Ram............240.24 cfm
Extrude-Honed ACCEL Hi-Flow intake
manifold with 3/8 inch radiused inlet
............................275.83 cfm
Extrude-Honed ACCEL Hi-Flow intake
manifold with ACCEL runner
............................266.94 cfm
Edelbrock Performer RPM manifold
(Stock)..................286.51 cfm
Edelbrock Victor Jr.
.............................275.24 cfm

HOLLEY STEALTH RAM
Stock…………………………… 275cfm
Ported…………………………..300cfm
Runner lengths
Stock tpi manifold 8” runners 11.25”, cylinder head 6” total 25.25”
Accel super ram manifold 8” runners 7” cylinder head 6” total 21”
Holley stealth ram manifold 6.26” ” cylinder head 6” total 12.26”
Edelbrock performer RPM runners 6” ” cylinder head 6” total 12”
Edelbrock vic jr , runner length 5.5” ” ” cylinder head 6” total 11.5”


Now play with the figure in the calculators below, what youll find is that the if your using a 350 size engine as a guide

the tpi runner length is ideal for peak tq 3427rpm and 2700-4000rpm for peak hp

the super ram is ideal for peak tq at 4032rpm and 3300rpm-4800rpm for peak hp

holleys stealth ram runner length is ideal at 4700 for peak tq and 5618rpm to 6282rpm for peak hp

the SUPER RAM IS A GOOD INTAKE BUT ITS A TOTAL P.I.T.A. to install
the STEALTH RAM requires a custom plenum but is far easier to install, it flows far better out of the box, and is designed for a slightly higher average rpm range
things to read
http://www.eecis.udel.edu/~davis/z28...age021105.html http://www.gmhightechperformance.com...holleystealth/




[Modified by grumpyvette, 7:35 PM 8/2/2003]

 

if i were in the market to get another intake , id definately go with the stealth ram. i know the super ram is more popular here , but i believe once more people start using the stealth ram , opinions will change.

 

How true,,,,, where do you want max power??? shifting at 6000RPM or more is alright but the rest of the engine must be built accordingly.

 

I'm in the market for a new intake..................I'm choosing the STEALTHRAM!!

 

Agreeeeeeeeeed. :yesnod:

Personally I wouldn't want to be shifting a miniram or stealthram car with stock internals, but thats just me.

 

Grumpy,

Interesting Post, my only major comments, is the Superram can make its peak up to 6000 rpm on a 350.... (My 383 makes its peak at about 5700 rpm with the 219 cam retarded 2 degrees)

Wait a few days and I'll be doing a test between these two intake systems. I have an auto with a 383, 3000 rpm converter, 3.45 gears. This is pretty aggressive to many and the Stealthram should work great with this set-up. The cam I have is the 74219 with .560/.560 lift with 1.6's, which I have, and the duration is effectively raised to 220 with the 1.6's. This cam is very similar to the GM Hotcam which spins to around 6500 rpm with the LT-1 and LT-4 crowd, thus I think I have enough cam for this intake up to 6200 or so. My heads are ported aftermarket iron heads that flow in the neighborhood of 250 cfm at .550 to .600 lift, thus they should be adequate for the test.

If the Stealthram out performs my Superram, I will buy one. If the Stealthram requires more stall and/or converter than I currently have, then I think the Stealthram is beaten by the Superram for a Automatic transmission vehicle intended for the street.

I hope the Stealthram is up to the task !! I really want this to work.

cheers,
Beach Bum

 

I am really looking forward to the results of this test. Please post the results.

Good luck with it Beach. :thumbs:

 

Im useing this combo,
custom 383 full roller ,11:1 cpr,engine
CRANE #119661 hydrolic roller (installed retarded 6 degrees) cam,
ported trickflow 200cc heads, )(about 210cc now and flow similar to AFR195cc heads))
custom stealth ram, 32lb injectors,custom chip,custom built plenum,
58mm throttle body,
6" rods, slp forged pistons,
total seal gapless rings
9.5 qt baffled custom oil pan,
milodon windage screen,
jackson gear drive,1 3/4 , with custom merge collector headers,
full 3" exhaust,
1.6 erson roller rockers,
200hp nitrous plate,
all forged rotateing internally ballanced assembly,
fluidamper ballancer
pollished combustion chambers,
ballanced engine ,
splayed 4 bolt block,
LS7 oil pump,all internals pollished

AT LEAST ON MY ENGINE THE STEALTH RAM WAS A BIG IMPROVEMENT OVER THE OTHER INTAKES I TRIED
BTW anyone want to run that tru DD-2000
heres the cam specs http://dab7.cranecams.com/SpecCard/D...1=Display+Card
the stealth ram will be the
TUNNEL RAM INTAKE CHOICE
THE THROTTLE BODY FLOW 1050cfm)





[Modified by grumpyvette, 2:45 AM 8/1/2003]

 

beach we are all waiting if anybody can do a true test you are one of the few that can get it done good luck :cheers:

 

Thanks for all the replies. This will not be going on a stock 350. It will be a 383 stroker motor.

 

I vote the Super Ram for obvious reasons :D :smash: :cheers:


Grumpy do you have a comparison of Dyno results on your engine or track ETs. Just thought it would be interesting to compare to Beach Bum's when he gets his. :cheers:

PS: Cant wait Beach :lurk:

 

I've got the Stealthram on now.... still a few things to sort out with the cheesy fuel lines and the stock throttle linkage bracket doesn't work and neither does the one lent to me by Paul. I should be able to start-up tomorrow night provided I have time to work out the couple of small problems.

Grumpy, What kind of track #'s are you doing with that without Nitrous ?

All I care about with the Stealthram is track times....nothing else.

Guys,

My track test will be very subjective, however, in defense of the Stealthram, I'm not going to have a lot of time to dial it in... basically get it started and running, and if I feel confident it can run hard without breaking, I'll drive to the racetrack Saturday morning. The weather will be around 85-90 degrees at Carlsbad Saturday, track is at 300 feet elevation. I have a ET front tire that went flat, so will be running on the front fatties. My Superram set-up would have run a 11.72-11.78 @ 115.5 to 116.25 on a hook pass in this upcoming weather. I'll be looking for 11.6's or better out of the Stealthram.

The event is simply a test n tune on Saturday, thus the traction is always marginal at best. I usually hook the first and sometimes the 2nd pass, but never really get it hooked up after that. However, I just bought a brand spanking new set of ET streets, thus maybe will get an extra 1 or 2 hook passes I hope.

I'm guessing I will be loosing some 60 ft et with this intake, the question will be... will there be enough of a HP to get this back and then some going down the track..... but dunno, we will see.

cheers,
Beach Bum

 

Hello!

I have a engine&intake that differs from the usual (SR/MR/Stealth) one...
Anybody care to host the pics?

Jussi

 

Beach I'm really looking forward to the results, this is a GREAT test! :cool: :cheers:

 

Grump... how much NA power are you making with your combination?

:cheers:

 

These all seem to be good intakes, but the key for me is emissions legal. :D

If they're all within spittin' distance and you drive on the street........ the choice is a no-brainer :D